% Encoding: UTF-8 @COMMENT{BibTeX export based on data in FAU CRIS: https://cris.fau.de/} @COMMENT{For any questions please write to cris-support@fau.de} @inproceedings{faucris.122611104, abstract = {In this paper, we present a novel co-designed architecture for high throughput database query processing. It consists of a highly configurable FPGA-based filter chain with arithmetic operation support and an alignment unit. This feeds the filtered data directly and in a cache-optimized way to embedded processors which are responsible for joining tables and post processing. High throughput interfaces and parallelism of FPGA implementations are thus combined in order to provide reduced and cache-Aligned data for optimized processor access. As a key component, we introduce a new highly configurable bloom filter cascade to relieve a processor of time-consuming hash-value computation and to significantly reduce the data for hash joins. It is shown that this unique approach may reduce the amount of data to be processed by the processors in typical data-warehouse applications by several orders of magnitude. The proposed co-design has been implemented on the embedded low-energy system-on-chip (SoC) platform Xilinx Zynq. Performance results for standard benchmarks show an up to 10 x higher throughput compared to a full featured x86-based processor at only a fraction of energy consumption.}, author = {Becher, Andreas and Ziener, Daniel and Meyer-Wegener, Klaus and Teich, Jürgen}, booktitle = {International Conference on Field Programmable Technology, FPT 2015}, date = {2015-12-07/2015-12-09}, doi = {10.1109/FPT.2015.7393148}, faupublication = {yes}, isbn = {9781467390910}, pages = {192-195}, peerreviewed = {unknown}, publisher = {Institute of Electrical and Electronics Engineers Inc.}, title = {{A} co-design approach for accelerated {SQL} query processing via {FPGA}-based data filtering}, venue = {Queenstown}, year = {2015} } @misc{faucris.114442504, abstract = {Today's generation of sensor networks reflect several changes in system characteristics over traditional sensor networks. These changes affect three key aspects: energy as a fundamental resource, stream data processing, and the inherently dynamic structure of the overall system.
In this paper we extract and present eight distinct challenges aligned to the key aspects which need to be addressed in the future. We use data of ongoing science and research projects to extract the most important challenges. These challenges need to be tackled in order to provide the basis for a flexible and adaptive system design which supports data-stream processing in energy-constrained ad-hoc networks.}, author = {Eibel, Christopher and Herbst, Sebastian and Cassens, Björn and Hönig, Timo and Wägemann, Peter and Janker, Heiko and Kapitza, Rüdiger and Meyer-Wegener, Klaus and Schröder-Preikschat, Wolfgang}, faupublication = {yes}, peerreviewed = {automatic}, title = {{A} {Flexible}, {Adaptive} {System} for {Data}-{Stream} {Processing} in {Energy}-{Constrained} {Ad}-hoc {Networks}}, url = {https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/6893}, year = {2016} } @inproceedings{faucris.239318240, abstract = {In this paper, we demonstrate a framework for DSL-based SQL query classification according to data-privacy directives. Based on query-log analysis, this framework automatically derives query meta-information (QMI) and provides interfaces for browsing and filtering queries based on this QMI. Domain-specific policy rules enable automatic classification of queries concerning their access to personal data. The generic policy-rule definition based on the QMI covers many syntactical SQL variations. To optimize classification performance, our framework stores the QMI both in relational and graph-based databases (DBs).
This case study compares the behavior of a relational DB with that of a graph-based DB with respect to a particular task, namely searching for the policy rules applicable to a given query. It turned out that both solutions have their benefits, so a hybrid solution has been chosen in the en},
author = {Schwab, Peter and Langohr, Maximilian and Meyer-Wegener, Klaus},
booktitle = {GRADES-NDA'20: Proceedings of the 3rd Joint International Workshop on Graph Data Management Experiences & Systems (GRADES) and Network Data Analytics (NDA)},
date = {2020-06-14/2020-06-14},
doi = {10.1145/3398682.3399167},
editor = {ACM},
faupublication = {yes},
keywords = {query classification, policy rules, data privacy, query-log analysis},
pages = {10:1-10:5},
peerreviewed = {Yes},
publisher = {ACM},
title = {{A} {Framework} for {DSL}-{Based} {Query} {Classification} {Using} {Relational} and {Graph}-{Based} {Data} {Models}},
url = {https://dl.acm.org/doi/abs/10.1145/3398682.3399167},
venue = {Portland, OR},
year = {2020}
}
@incollection{faucris.107072064,
address = {Erlangen},
author = {Meyer-Wegener, Klaus},
booktitle = {Klimawandel (Drei Vorträge), Mediengesellschaft (Vier Vorträge) - Erlanger Universitätstage Ansbach 2010/2011},
faupublication = {yes},
note = {UnivIS-Import:2015-07-08:Pub.2012.tech.IMMD.IMMD6.alexan},
pages = {129-146},
peerreviewed = {No},
publisher = {Universitätsbund Erlangen-Nürnberg e.V.},
series = {Erlanger Forschungen},
title = {{Alexandria} 2.0 - {Zur} digitalen {Zukunft} der {Bibliotheken}},
volume = {124/125},
year = {2012}
}
@inproceedings{faucris.107091424,
address = {New York, NY, USA},
author = {Herbst, Sebastian and Pollner, Thomas Niko and Tenschert, Johannes and Lauterwald, Frank and Endler, Gregor and Meyer-Wegener, Klaus},
booktitle = {DEBS '15 Proceedings of the 9th ACM International Conference on Distributed Event-Based Systems},
date = {2015-06-29/2015-07-03},
doi = {10.1145/2675743.2771830},
faupublication = {yes},
isbn = {978-1-4503-3286-6},
keywords = {animal tracking, complex event processing, continuous queries, data stream processing, disjoint union, object tracking, pattern matching, stream algebra, stream partitioning, time-aware aggregates},
pages = {140-149},
peerreviewed = {Yes},
publisher = {ACM},
series = {DEBS '15},
title = {{An} {Algebra} for {Pattern} {Matching}, {Time}-aware {Aggregates} and {Partitions} on {Relational} {Data} {Streams}},
venue = {Oslo},
year = {2015}
}
@inproceedings{faucris.121114444,
address = {Heidelberg},
author = {Meyer-Wegener, Klaus and Lum, Vincent Y.},
booktitle = {Proceedings of ICCI ´90},
faupublication = {no},
isbn = {978-3-540-53504-1},
note = {UnivIS-Import:2015-04-16:Pub.1990.tech.IMMD.IMMD6.anarch},
pages = {304-313},
peerreviewed = {Yes},
publisher = {Springer Berlin},
series = {Lecture Notes in Computer Science},
title = {{An} {Architecture} for a {Multimedia} {Database} {Management} {System} {Supporting} {Content} {Search}},
venue = {Niagara Falls},
volume = {468},
year = {1990}
}
@inproceedings{faucris.118173044,
abstract = {In this paper we present our approach towards a modularized database management system (DBMS) whose components can be adapted at runtime and show the modularization of a DBMS beneath the record-oriented interface as a first step. Cross-cutting concerns like transactions pose thereby a challenge that we answer with aspect-oriented programming (AOP). Finally we show the implementation techniques that enable the exchange of database modules dynamically. Particularly with regard to stateful components we define a service adaptation process that preserves and transmits the component's state. Copyright 2008 ACM.},
address = {Magdeburg},
author = {Irmert, Florian and Daum, Michael and Meyer-Wegener, Klaus},
booktitle = {Software Engineering for Tailor-made Data Management},
date = {2008-03-29/2008-03-29},
doi = {10.1145/1385486.1385498},
faupublication = {yes},
keywords = {Adaptation; Availability; Component replacement; Migration; Modularity; Service-oriented architecture},
note = {UnivIS-Import:2015-04-16:Pub.2008.tech.IMMD.IMMD6.anewap},
pages = {41-45},
peerreviewed = {Yes},
publisher = {University},
title = {{A} {New} {Approach} to {Modular} {Database} {Systems}},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2008/setmdm2008{\_}irmert.pdf},
venue = {Nantes, France},
year = {2008}
}
@inproceedings{faucris.121738364,
author = {Pollner, Thomas Niko and Daum, Michael and Dressler, Falko and Meyer-Wegener, Klaus},
booktitle = {The 10th IFIP Annual Mediterranean Ad Hoc Networking Workshop},
date = {2011-06-12/2011-06-15},
doi = {10.1109/Med-Hoc-Net.2011.5970483},
faupublication = {yes},
isbn = {978-1-4577-0898-5},
keywords = {DSAM; Data Stream Application Manager; RDSP; overlay network; WSN; wireless sensor networks; embedded systems; heterogeneous systems; data stream processing; data stream systems; heterogeneous networks; routing; distributed systems; ressource efficiency},
note = {UnivIS-Import:2015-04-16:Pub.2011.tech.IMMD.IMMD4.{\_}anove},
pages = {157-164},
peerreviewed = {Yes},
publisher = {IEEE},
title = {{An} {Overlay} {Network} for {Integration} of {WSNs} in {Federated} {Stream}-{Processing} {Environments}},
venue = {Favignana},
year = {2011}
}
@inproceedings{faucris.117663964,
abstract = {Specific requirements for audio storage in multimedia database management systems, where data independence of continuous data plays a key role, are described in this paper. Based on the desired characteristics of the internal format for natural audio considering especially long time storage, where the storage must be lossless, allowing among others easy upgrade of the system, the new MPEG-4 scalable lossless audio coding (SLS) is shortly explained. It is then evaluated w.r.t. the discussed requirements, looking at characteristics and processing complexity of the algorithm. Some suggestions of the possible modifications are given at the end.},
author = {Suchomski, Maciej and Penzkofer, Florian and Meyer-Wegener, Klaus},
booktitle = {AES 120th Convention},
date = {2006-05-20/2006-05-23},
faupublication = {yes},
keywords = {MPEG-4 SLS; scalable lossless audio coding; MMDBMS; format independence; evaluation; processing complexity;},
note = {UnivIS-Import:2015-04-16:Pub.2006.tech.IMMD.IMMD6.applic},
pages = {6729},
peerreviewed = {Yes},
title = {{Application} of {MPEG}-4 {SLS} in {MMDBMSs} - {Requirements} for and {Evaluation} of the {Format}},
venue = {Paris},
year = {2006}
}
@article{faucris.115929264,
author = {Berthold, Henrike and Binkowski, Frank and Henrich, Andreas and Hollfelder, Silvia and Lindner, Wolfgang and Marder, Ulrich and Meyer-Wegener, Klaus and Robbert, Günther},
faupublication = {yes},
journal = {Informatik - Forschung und Entwicklung},
note = {UnivIS-Import:2015-03-09:Pub.2002.tech.IMMD.IMMD6.archit},
pages = {77-89},
peerreviewed = {Yes},
title = {{Architektur} multimedialer {Informationssysteme}},
volume = {17},
year = {2002}
}
@inproceedings{faucris.119187464,
author = {Tröger, Frank and Meyer-Wegener, Klaus},
booktitle = {UpTimes - Proceedings of the LDAPcon 2007},
faupublication = {yes},
isbn = {9783865412287},
note = {UnivIS-Import:2015-04-16:Pub.2007.tech.IMMD.IMMD6.arefer},
pages = {-},
peerreviewed = {Yes},
title = {{A} {Reference} {Schema} for {LDAP}-based {Identity} {Management} {Systems}},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2007/ldap2007{\_}troe.pdf},
venue = {Köln},
volume = {3},
year = {2007}
}
@inproceedings{faucris.121723844,
abstract = {Complex modern embedded automotive software systems require different test techniques in each of the development stages. Most common are Model in the Loop, Software in the Loop, and Hardware in the Loop. The majority of these test techniques are automated. Each uses different notations for test data, pass/fail criteria, system-under-test interface definition and test-platform-specific parameterization. This leads to a series of problems such as exchangeability of test-specification notations among different teams working on the same functional module, reusability of test cases and uniformity of test-specification representation. This contribution proposes an approach for the formal and test-platform-independent definition of the test specification of reactive systems. Additionally, the application of the approach in three concrete use-case scenarios elicited in a pre-development department of AUDI AG is shown. © 2009 IEEE.},
author = {Entin, Vladimir and Siegl, Sebastian and Kern, Andreas and Reichel, Michael and Meyer-Wegener, Klaus},
booktitle = {Testing: Academic and Industrial Conference - Practice and Research Techniques},
date = {2009-09-04/2009-09-06},
doi = {10.1109/TAICPART.2009.21},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2009.tech.IMMD.IMMD6.ascena},
pages = {179-183},
peerreviewed = {Yes},
title = {{A} {Scenario}-{Centric} {Approach} for the {Definition} of the {Formal} {Test} {Specifications} of {Reactive} {Systems}},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2009/taic{\_}part2009{\_}entin.pdf},
venue = {Windsor, UK},
year = {2009}
}
@inproceedings{faucris.118457724,
abstract = {A collaboration of leading research centers in the field of High Energy Physics (HEP) has built INSPIRE, a novel information infrastructure, which comprises the entire corpus of about one million documents produced within the discipline, including a rich set of metadata, citation information and half a million full-text documents, and offers a unique opportunity for author disambiguation strategies. The presented approach features extended metadata comparison metrics and a three-step unsupervised graph clustering technique. The algorithm aided in identifying 200'000 individuals from 6'500'000 author signatures. Preliminary tests based on knowledge of external experts and a pilot of a crowd-sourcing system show a success rate of more than 96% within the selected test cases. The obtained author clusters serve as a recommendation for INSPIRE users to further clean the publication list in a crowd-sourced approach. © 2011 ACM.},
address = {New York},
author = {Weiler, Henning and Meyer-Wegener, Klaus and Mele, Salvatore},
booktitle = {Proc. 20th ACM Conf. on Information and Knowledge Management},
date = {2011-10-24/2011-10-28},
doi = {10.1145/2063576.2063949},
faupublication = {no},
isbn = {978-1-4503-0717-8},
keywords = {author disambiguation; digital libraries; entity resolution; knowledge management},
note = {UnivIS-Import:2015-04-16:Pub.2011.tech.IMMD.IMMD6.author},
pages = {2293-2296},
peerreviewed = {Yes},
publisher = {ACM},
title = {{Authormagic} - {An} {Approach} to {Author} {Disambiguation} in {Large}-{Scale} {Digital} {Libraries}},
venue = {Glasgow, Scotland, UK},
year = {2011}
}
@inproceedings{faucris.116020124,
author = {Märcz, Andreas and Meyer-Wegener, Klaus},
booktitle = {System Design Automation},
faupublication = {no},
note = {UnivIS-Import:2015-04-16:Pub.2002.tech.IMMD.IMMD6.bandwi},
pages = {o.S.},
peerreviewed = {No},
title = {{Bandwidth}-based converter description for realtime scheduling at application level in media servers},
venue = {Pirna},
year = {2002}
}
@article{faucris.204216811,
abstract = {In this paper, the BATS project is presented which aims to track the behavior of bats via
an ultra-low power wireless sensor network. An overview about the whole project and its parts
like sensor node design, tracking grid and software infrastructure is given and the evaluation of the
project is shown. The BATS project includes a lightweight sensor node that is attached to bats and
combines multiple features. Communication among sensor nodes allows tracking of bat encounters.
Flight trajectories of individual tagged bats can be recorded at high spatial and temporal resolution
by a ground node grid. To increase the communication range the BATS project implemented a
long-range telemetry system to still receive sensor data outside the standard ground node network.
The whole system is designed with the common goal of ultra-low energy consumption while still
maintaining optimal measurement results. To this end, the system is designed in a flexible way and
is able to adapt its functionality according to the current situation. In this way it uses the energy
available on the sensor node as efficient as possible.
Big Data ist derzeit ein Modebegriff in der Informatik, ein „Hype“, wie man auch sagt. Eine präzise Definition gibt es nicht; einige Forscher betrachten den Begriff auch als unwissenschaftlich. Dass immer mehr Daten produziert werden ist unstrittig, aber die Verwendung des Begriffs suggeriert auch eine sinnvolle Nutzung der Daten, und da herrscht eher ein wildes Durcheinander. Man vermutet, dass viele interessante Informationen in den Daten stecken, aber man weiß nicht so recht, wie man an sie herankommen könnte. Der Beitrag wird zunächst eine Charakterisierung von Big Data versuchen und dann diskutieren, was vorhandene technische Konzepte wie Datenbanken, Data Warehouses, Complex-Event Processing, Data Mining und Map-Reduce für die Auswertung der Daten leisten können – und was auch nicht.},
address = {Erlangen},
author = {Meyer-Wegener, Klaus},
booktitle = {D@tenflut : Erlanger Universitätstage Ansbach 2016},
editor = {Freiburg, Rudolf},
faupublication = {yes},
isbn = {978-3-96147-046-4},
keywords = {Big Data; Data Mining; Datenqualität},
pages = {99-115},
peerreviewed = {No},
publisher = {FAU University Press},
series = {FAU Forschungen},
title = {{Erstmal} einfach alles speichern: {Big} {Data} als {Aufgabe} für die {Informatik}},
volume = {9},
year = {2017}
}
@article{faucris.111573264,
abstract = {The consideration of non-functional properties in the component-oriented approach to software development is important for its success. The COMQUAD project defines a system architecture and a development methodology for component-based software with quantitative properties and adaptivity, thereby respecting non-functional properties from design to provision at runtime. Based on an elementary model of software components, we show how response time as an exemplary property is treated: Its relation to available resources is investigated and it is shown how resource requirements of the whole system can be derived from knowledge about the constituent components. © 2004 Elsevier B.V.},
author = {Meyerhöfer, Marcus and Meyer-Wegener, Klaus},
doi = {10.1016/j.entcs.2004.02.066},
faupublication = {yes},
journal = {Electronic Notes in Theoretical Computer Science},
keywords = {Assembly matrix; Estimation; Non-functional properties; Resource consumption; Response time; Software components},
note = {UnivIS-Import:2015-03-09:Pub.2005.tech.IMMD.IMMD6.estima},
pages = {25-45},
peerreviewed = {Yes},
title = {{Estimating} {Non}-functional {Properties} of {Component}-based {Software} {Based} on {Resource} {Consumption}},
year = {2005}
}
@article{faucris.117423284,
author = {Meyer-Wegener, Klaus and Daum, Michael},
faupublication = {yes},
journal = {Transactions Automated Control Systems},
note = {UnivIS-Import:2015-03-09:Pub.2011.tech.IMMD.IMMD6.events},
pages = {49-53},
peerreviewed = {No},
title = {{Event}-{Stream} {Subscription} {Systems} - {Comparing} and {Integrating} the {Concepts} of {Active} {DBMS}, {Event} {Processing}, {Data}-{Stream} {Systems}, and {Publish}/{Subscribe} {Systems}},
volume = {10},
year = {2011}
}
@inproceedings{faucris.117683544,
address = {Wroclaw},
author = {Suchomski, Maciej and Meyer-Wegener, Klaus},
booktitle = {Multimedia and Network Information Systems 2006},
faupublication = {yes},
isbn = {83-7085-974-7},
keywords = {format independence; transcoding; real-time conversion; multimedia databases; format adaptation; audio; video; continuous data; meta-data based conversion; data transformation;},
note = {UnivIS-Import:2015-04-16:Pub.2006.tech.IMMD.IMMD6.format},
pages = {o.S.},
peerreviewed = {Yes},
publisher = {Oficyna Wydawnicza Politechniki Wroclawskiej},
title = {{Format} {Independence} of {Audio} and {Video} in {Multimedia} {Database} {Systems}},
venue = {Wroclaw, Poland},
year = {2006}
}
@article{faucris.116916184,
author = {Suchomski, Maciej and Meyer-Wegener, Klaus},
faupublication = {yes},
journal = {International Journal of Intelligent Information and Database Systems},
note = {UnivIS-Import:2015-03-09:Pub.2008.tech.IMMD.IMMD6.format},
pages = {297-308},
peerreviewed = {Yes},
title = {{Format} independence of audio and video in multimedia database systems},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2008/ijiids2008{\_}suchomski.pdf},
volume = {2},
year = {2008}
}
@article{faucris.122857944,
author = {Ziener, Daniel and Bauer, Florian and Becher, Andreas and Dennl, Christopher and Meyer-Wegener, Klaus and Schürfeld, Ute and Teich, Jürgen and Vogt, Jörg-Stephan and Weber, Helmut},
faupublication = {yes},
journal = {ACM Transactions on Reconfigurable Technology and Systems},
peerreviewed = {unknown},
title = {{FPGA}-{Based} {Dynamically} {Reconfigurable} {SQL} {Query} {Processing}},
year = {2015}
}
@article{faucris.106478284,
abstract = {In this article, we propose an FPGA-based SQL query processing approach exploiting the capabilities of partial dynamic reconfiguration of modern FPGAs. After the analysis of an incoming query, a query-specific hardware processing unit is generated on the fly and loaded on the FPGA for immediate query execution. For each query, a specialized hardware accelerator pipeline is composed and configured on the FPGA from a set of presynthesized hardware modules. These partially reconfigurable hardware modules are gathered in a library covering all major SQL operations like restrictions and aggregations, as well as more complex operations such as joins and sorts. Moreover, this holistic query processing approach in hardware supports different data processing strategies including row-as column-wise data processing in order to optimize data communication and processing. This article gives an overview of the proposed query processing methodology and the corresponding library of modules. Additionally, a performance analysis is introduced that is able to estimate the processing time of a query for different processing strategies and different communication and processing architecture configurations. With the help of this performance analysis, architectural bottlenecks may be exposed and future optimized architectures, besides the two prototypes presented here, may be determined.},
author = {Ziener, Daniel and Weber, Helmut and Vogt, Jörg-Stephan and Schürfeld, Ute and Meyer-Wegener, Klaus and Teich, Jürgen and Dennl, Christopher and Becher, Andreas and Bauer, Florian},
doi = {10.1145/2845087},
faupublication = {yes},
journal = {ACM Transactions on Reconfigurable Technology and Systems},
keywords = {Dynamic partial reconfiguration; FPGA; Reconfigurable computing; SQL processing},
note = {UnivIS-Import:2017-12-18:Pub.2016.tech.IMMD.inform.fpgaba{\_}0},
pages = {25:1-25:24},
peerreviewed = {unknown},
title = {{FPGA}-{Based} {Dynamically} {Reconfigurable} {SQL} {Query} {Processing}},
volume = {9},
year = {2016}
}
@article{faucris.110523424,
abstract = {Sensor networks have successfully been used for wildlife monitoring and tracking of different species. When it comes to small animals such as smaller birds, mammals, or even insects, the current approach is to use extremely lightweight RF tags located using radio telemetry. A new quantum leap in technology is needed to overcome this limitation and enable new ways to observe larger numbers of small animals. In an interdisciplinary team, we are working on the different aspects of such a new technology. In particular, we report on our findings on a sensor-network-based tracking solution for bats. Our system is based on integrated localization and wireless communication protocols for ultra-low-power systems. This requires coding techniques for improved reliability as well as ranging solutions for tracking hunting bats. We address the technological and methodical problems related to system design, software support, and protocol design. First field experiments have been conducted that showcase the capabilities of our system.},
author = {Dressler, Falko and Ripperger, Simon and Hierold, Martin and Nowak, Thorsten and Eibel, Christopher and Cassens, Björn and Mayer, Frieder and Meyer-Wegener, Klaus and Kölpin, Alexander},
doi = {10.1109/MCOM.2016.7378438},
faupublication = {yes},
journal = {IEEE Communications Magazine},
month = {Jan},
note = {UnivIS-Import:2015-10-26:Pub.2015.tech.IMMD.IMMD4.fromra},
pages = {129-135},
peerreviewed = {Yes},
title = {{From} {Radio} {Telemetry} to {Ultra}-{Low} {Power} {Sensor} {Networks} - {Tracking} {Bats} in the {Wild}},
url = {http://www.ccs-labs.org/bib/dressler2016bats/dressler2016bats.pdf},
volume = {54},
year = {2016}
}
@inproceedings{faucris.242435722,
abstract = {When accessing data from a database, a database management system has to accomplish many tasks.
Checking
the conformity of the query, generating a reasonably good query plan
and executing it in a concurrent system are just a few of them.
During query execution, there are some points at which the main execution thread must stop and wait for data.
This synchronous waiting can have a major impact on the overall query performance.
In
this paper we introduce the idea of a ticket-based fetch, which
supports the database management system by waiting for data
asynchronously.
This can improve the query-execution performance in database system},
author = {Vöhringer, Demian and Meyer-Wegener, Klaus},
booktitle = {Proc. Conf. "Lernen, Wissen, Daten, Analysen"},
date = {2020-09-09/2020-09-11},
faupublication = {yes},
keywords = {Asynchronism; Data Flow; Data Access; Ticket; Database System; Data Warehouse; Big Data; Concurrent},
pages = {270 - 278},
peerreviewed = {Yes},
publisher = {CEUR-WS},
title = {{Future} {Fetch} -- {Towards} a ticket-based data access for secondary storage in database systems},
url = {http://ceur-ws.org/Vol-2738/LWDA2020{\_}paper{\_}2.pdf},
venue = {Bonn / Online},
year = {2020}
}
@article{faucris.119720524,
author = {Mattos, Nelson and Meyer-Wegener, Klaus and Mitschang, Bernhard},
faupublication = {no},
journal = {Data & Knowledge Engineering},
note = {UnivIS-Import:2015-03-05:Pub.1992.tech.IMMD.IMMD6.grandt},
pages = {321-352},
peerreviewed = {Yes},
title = {{Grand} tour of concepts for object-orientation from a database point of view},
volume = {9},
year = {1992}
}
@inproceedings{faucris.120914904,
author = {Weiß, Steffen and Meyer-Wegener, Klaus},
booktitle = {D.A.CH Security 2007},
faupublication = {yes},
isbn = {978-3-00-021600-8},
note = {UnivIS-Import:2015-04-16:Pub.2007.tech.IMMD.IMMD6.hierar},
pages = {406-414},
peerreviewed = {Yes},
title = {{Hierarchisch} aggregierte {Bewertung} der {Sicherheit} von {Organisationen}},
venue = {Universität Klagenfurt},
year = {2007}
}
@inproceedings{faucris.115337904,
address = {Amsterdam},
author = {Meyer-Wegener, Klaus and Lum, Vincent Y. and Wu, C. Thomas},
booktitle = {Proc. IIP TC 2/WG 2.6 Working Conf.},
faupublication = {no},
keywords = {Bilddatenbanken},
note = {UnivIS-Import:2015-04-16:Pub.1989.tech.IMMD.IMMD6.imagem},
pages = {497-523},
peerreviewed = {Yes},
publisher = {North-Holland},
title = {{Image} {Management} in a {Multimedia} {Database} {System}},
venue = {Tokyo},
year = {1989}
}
@inproceedings{faucris.116199644,
abstract = {The paper describes bit rate control for a one-pass MPEG-4 video encoding algorithm in order to make it suitable for real-time applications. The proposed control method is of low computational complexity and more accurate than previous approaches. In result, the rate-control buffer size which highly influences the latency between a video sender and receiver can be decreased significantly. Additionally, a solution is proposed for increasing the perceived quality by introducing an advanced bit allocation scheme and by exploiting activity masking. The proposed algorithm has been implemented in the XVID codec, a representative of the MPEG-4 standard. Experiments prove that the proposed algorithm is highly accurate and provides improved perceived visual quality. Moreover, the implementation outperforms other up-to-now bit rate control algorithms.},
address = {New York, NY, USA},
author = {Militzer, Michael and Suchomski, Maciej and Meyer-Wegener, Klaus},
booktitle = {Proceedings of the 11th ACM International Conference on Multimedia},
date = {2003-11-04/2003-11-06},
faupublication = {yes},
isbn = {1-58113-722-2},
keywords = {bit rate control, real-time, video encoding, MPEG-4, p-domain, quality optimization, live streaming, video applications, perceived quality, teleconferencing, videoconferencing},
note = {UnivIS-Import:2015-04-16:Pub.2003.tech.IMMD.IMMD6.improv},
pages = {402-411},
peerreviewed = {Yes},
publisher = {ACM Press},
title = {{Improved} p-domain rate control and perceived quality optimizations for {MPEG}-4 real-time video applications},
venue = {Berkeley, California, USA},
year = {2003}
}
@inproceedings{faucris.118383584,
author = {Baumgarten, Christoph and Marder, Ulrich and Robbert, Günther and Meyer-Wegener, Klaus},
booktitle = {Proc. 2. Workshop Multimediale Informations-und Kommunikationssysteme},
faupublication = {no},
note = {UnivIS-Import:2015-04-16:Pub.1996.tech.IMMD.IMMD6.inform},
pages = {-},
peerreviewed = {Yes},
title = {{Informationssuche} in verteilten {Datenbeständen}},
venue = {Illmenau},
year = {1996}
}
@article{faucris.124069924,
author = {Kinzinger, Horst and Küspert, Klaus and Meyer-Wegener, Klaus and Peinl, Peter},
faupublication = {yes},
journal = {Computer Performance},
note = {UnivIS-Import:2015-03-05:Pub.1984.tech.IMMD.IMMD6.integr},
pages = {207-221},
peerreviewed = {Yes},
title = {{Integrated} environment for performance evaluation in a {DB}/{DC} system},
volume = {5},
year = {1984}
}
@inproceedings{faucris.118179644,
abstract = {The ability to adapt to different computing environments or external changes is an important requirement for both stationary and mobile computing. Without this ability, all requirements have to be foreseen, which is often not possible in practice. Classical software engineering approaches often lead to redeployment or even software migration. Therefore loosely coupled software design and a dynamic adaptation model are required. Dynamic aspect-oriented programming (d-AOP) in conjunction with service oriented programming is well suited to face this demand. One well known approach providing a service-oriented component model is the OSGi Service Platform. This paper introduces our approach to combine an OSGi Framework with d-AOP to establish dynamic adaptation of core concerns as well as crosscutting concerns. Seamless integration of current d-AOP frameworks is managed by mapping aspect deployment and undeployment to OSGi bundle lifecycle operations without affecting the deployment model. Unlike former proposals, this approach retains the strict separation of bundles as mandated by OSGi. Copyright 2008 ACM.},
address = {New York, NY, USA},
author = {Irmert, Florian and Lauterwald, Frank and Bott, Matthias and Fischer, Thomas and Meyer-Wegener, Klaus},
booktitle = {Proc. 2nd Workshop on Middleware-Application Interaction},
date = {2008-06-03/2008-06-03},
doi = {10.1145/1394272.1394279},
faupublication = {yes},
isbn = {978-1-60558-204-7},
keywords = {Aspect mechanism; Aspect weaving; Aspect-oriented programming; Crosscutting concerns; Dynamic adaptation; Modularization; OSGi framework; Reuse; Software components},
note = {UnivIS-Import:2015-04-16:Pub.2008.tech.IMMD.IMMD6.integr},
pages = {25-30},
peerreviewed = {Yes},
publisher = {ACM},
series = {ACM International Conference Proceeding Series},
title = {{Integration} of dynamic {AOP} into the {OSGi} service platform},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2008/mai2008{\_}irmert.pdf},
venue = {Oslo, Norway},
volume = {306},
year = {2008}
}
@article{faucris.203817333,
author = {Becher, Andreas and Beena Gopalakrishnan Nair, Lekshmi and Broneske, David and Drewes, Tobias and Gurumurthy, Bala and Meyer-Wegener, Klaus and Pionteck, Thilo and Saake, Gunter and Teich, Jürgen and Wildermann, Stefan},
doi = {10.1007/s13222-018-0294-9},
faupublication = {yes},
journal = {Datenbank-Spektrum},
peerreviewed = {unknown},
title = {{Integration} of {FPGAs} in {Database} {Management} {Systems}: {Challenges} and {Opportunities}},
year = {2018}
}
@inproceedings{faucris.110269544,
abstract = {In this paper, we present DSAM, a data stream application manager. DSAM supports the deployment of global queries to distributed and heterogeneous sensor nodes and Stream Processing Systems (SPSs). We provide a graph-based global query language DSAM-AQL. The Abstract Query Language (AQL) is a declarative streamoriented query language that abstracts from topology and distribution of Wireless Sensor Networks (WSNs) and the heterogeneity of their nodes. Query processing and distribution is supported by a central catalog that manages all stream schemas, nodes, (initial) topology, SPSs, queries, performance characteristics of both network connections and nodes, and expressiveness of nodes' supported query languages and query definitions. DSAM supports query partitioning, query mapping, deployment, and monitoring of distributed data stream applications. We focus on DSAM's infrastructure and the procedures of deployment of global queries. © 2009 IEEE.},
author = {Daum, Michael and Fischer, Martin and Kiefer, Mario and Meyer-Wegener, Klaus},
booktitle = {2009 10th International Conference on Mobile Data Management: Systems, Services and Middleware, MDM 2009},
doi = {10.1109/MDM.2009.92},
isbn = {9780769536507},
pages = {525-530},
title = {{Integration} of heterogeneous sensor nodes by data stream management},
venue = {Taipei},
year = {2009}
}
@incollection{faucris.118411964,
abstract = {Wireless Sensor Networks (WSNs) will be an important streaming data source for many fields of surveillance in the near future, as the price of WSN technologies is diminishing rapidly, while processing power, sensing capability, and communication efficiency are growing steadily. Data-stream analyses should be distributed over the entire network in a way that the processing power is well utilized, the sensing is done in a semantically reasonable way, and communication is reduced to a minimumas it consumesmuch energy in general. Surveillance experts of different domains need technical experts in order to deploy those distributed data stream analyses. Data-stream queries often realize data-stream analyses. Especially surveillance scenarios that base on Sensor Data Fusion (SDF) will need the integration of heterogeneous data sources produced by potentially heterogeneous sensor nodes. This chapter overviews existing WSN middleware solutions, Stream Processing Systems (SPSs), and their integration. An approach that maps a global data-stream query to distributed and heterogeneous sensor nodes and SPSs opens a path to solve the problems mentioned above. Integration is achieved in two ways: semantic integration is done implicitly by the partitioning and mapping using rules that retain the semantics of the global query through the entire distribution and deployment process; technical integration is achieved during mapping and deployment with the help of the knowledge about platforms and connections. © 2010 Springer-Verlag Berlin Heidelberg.},
address = {Berlin Heidelberg},
author = {Daum, Michael and Lauterwald, Frank and Fischer, Martin and Kiefer, Mario and Meyer-Wegener, Klaus},
booktitle = {Wireless Sensor Networks Technologies for the Information Explosion Era},
doi = {10.1007/978-3-642-13965-9},
faupublication = {yes},
isbn = {978-3-642-13964-2},
keywords = {RDSP;},
note = {UnivIS-Import:2015-04-20:Pub.2010.tech.IMMD.IMMD6.integr},
pages = {139-172},
peerreviewed = {unknown},
publisher = {Springer Verlag},
series = {Studies in Computational Intelligence},
title = {{Integration} of {Heterogeneous} {Sensor} {Nodes} by {Data} {Stream} {Management}},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2010/wsnt2010{\_}daum.pdf},
volume = {278},
year = {2010}
}
@inproceedings{faucris.118964604,
author = {Süß, Henrike and Meyer-Wegener, Klaus},
booktitle = {Proceedings of the SDA´98},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1998.tech.IMMD.IMMD6.intero},
pages = {213-220},
peerreviewed = {No},
title = {{Interoperability} {Architectures} for {Distributed} {Multimedia} {Database} {Systems}},
venue = {Dresden},
year = {1998}
}
@inproceedings{faucris.118467624,
address = {Kaiserslautern},
author = {Daum, Michael and Lauterwald, Frank and Baumgärtel, Philipp and Meyer-Wegener, Klaus},
booktitle = {Proceedings BTW 2011 - Workshops und Studierendenprogramm},
faupublication = {yes},
isbn = {978-3-941438-61-3},
note = {UnivIS-Import:2015-04-16:Pub.2011.tech.IMMD.IMMD6.kalibr},
pages = {13-23},
peerreviewed = {Yes},
publisher = {Technische Universität},
series = {Schriftenreihe des Fachbereichs Informatik},
title = {{Kalibrierung} von {Kostenmodellen} für föderierte {DSMS}},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2011/btw2011{\_}Daum.pdf},
venue = {Kaiserslautern},
volume = {30},
year = {2011}
}
@inproceedings{faucris.115583424,
address = {Magedburg},
author = {Süß, Henrike and Meyer-Wegener, Klaus},
booktitle = {Multimedia-Systeme},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1998.tech.IMMD.IMMD6.konfli},
pages = {69-84},
peerreviewed = {Yes},
publisher = {Universität},
title = {{Konfliktwahrscheinlichkeiten} beim {Zugriff} auf {Medienobjektserver}},
venue = {Magdeburg},
year = {1998}
}
@inproceedings{faucris.120766624,
abstract = {For multimedia servers, data independence is as beneficial as it is for databases. It means that users access the data without referring to the storage format, and the server returns them in many different formats and qualities. The storage format can then be chosen at will, and it should be selected to support a large variety of accesses. When looking at video, some of the accesses even require real-time processing. LLV1 is a layered video format for storing videos without loss of information. Its layers can be read separately, so that scalability is achieved in terms of bandwidth and computational resources. LLV1 has been developed on the basis of XviD, a state-of-the-art implementation of the MPEG-4 Part 2 standard, and is designed for use in multimedia servers to facilitate real-time format conversions, a requirement to reach data-independent access to media objects. Thus, XviD's advantages in efficient video compression are inherited by LLV1. Orthogonality of the layering is provided by the different enhancement layers in respect to temporal resolution and spatial properties. The compression efficiency is comparable to other lossless formats, however only LLV1 provides scalability features, which can be exploited in real-time processing. Moreover, the scalable design of the decompression algorithm allows for adaptable execution and thus makes QoS control possible. Additionally, the coding algorithm is asymmetric, which further reduces the computational requirements for delivering the multimedia content from storage to the end user.},
author = {Militzer, Michael and Suchomski, Maciej and Meyer-Wegener, Klaus},
booktitle = {Multimedia Systems and Applications VIII},
date = {2005-10-24/2005-10-26},
doi = {10.1117/12.631170},
faupublication = {yes},
keywords = {Lossless layered video; real-time transcoding; multimedia databases; MMDBMS; video storage; lossless format; temporal scalability; spatial scalability; video format; media server;},
note = {UnivIS-Import:2015-04-16:Pub.2005.tech.IMMD.IMMD6.llv1la},
pages = {60151A},
peerreviewed = {Yes},
publisher = {International Society for Optical Engineering; 1999},
series = {Proc. SPIE},
title = {{LLV1}: {Layered} {Lossless} {Video} {Format} {Supporting} {Multimedia} {Servers} {During} {Realtime} {Delivery}},
venue = {Boston, Massachusetts, USA},
volume = {6015},
year = {2005}
}
@article{faucris.311231945,
author = {Rückert, Christian and Meyer-Wegener, Klaus and Safferling, Christoph and Freiling, Felix},
doi = {10.1515/juru-2023-2051},
faupublication = {yes},
journal = {Juristische Rundschau},
pages = {366-378},
peerreviewed = {No},
title = {{Messengerdienst}-{Nachrichten} als {Beweismittel} im {Strafverfahren} – am {Beispiel} der {Auswertung} von {WhatsApp}-{Chats}},
volume = {2023},
year = {2023}
}
@inproceedings{faucris.121740344,
author = {Pollner, Thomas Niko and Meyer-Wegener, Klaus},
booktitle = {PhD Workshop @ DEBS 2011},
date = {2011-07-15/2011-07-15},
faupublication = {yes},
keywords = {DSAM; Data Stream Application Manager; Data Stream Processing Management; Wireless Sensor Networks; WSN; Metadata Acquisition; Decentralization; Distributed Systems; Ressource Efficiency; Heterogeneous Systems; Query Optimization},
note = {UnivIS-Import:2015-04-16:Pub.2011.tech.IMMD.IMMD6.metada},
title = {{Metadata} and {Query} {Management} for {Distributed} {Stream} {Processing} in {Heterogeneous} {Sensor} {Networks}},
venue = {New York, NY},
year = {2011}
}
@inproceedings{faucris.118145104,
address = {Renningen},
author = {Entin, Vladimir and Meyer-Wegener, Klaus and Löbel, Carmen},
booktitle = {Simulation und Test in der Funktions- und Softwareentwicklung für die Automobilelektronik, II},
faupublication = {yes},
isbn = {978-3-8169-2818-8},
note = {UnivIS-Import:2015-04-16:Pub.2008.tech.IMMD.IMMD6.modelb},
pages = {112-119},
peerreviewed = {Yes},
publisher = {expert-Verlag},
title = {{Model}-{Based} {Automation} of the {Test} {Processes} in the {Pre}-{Development} of {Driver} {Assistance} {Systems}},
venue = {Berlin},
year = {2008}
}
@inproceedings{faucris.115432504,
address = {Berlin},
author = {Käckenhoff, Rolf and Merten, Detlef and Meyer-Wegener, Klaus},
booktitle = {Multimedia: Advanced Teleservices and High Speed Communication Architectures},
faupublication = {yes},
keywords = {Medien-Server},
note = {UnivIS-Import:2015-04-16:Pub.1994.tech.IMMD.IMMD6.mossas},
pages = {413-425},
peerreviewed = {Yes},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
title = {{MOSS} as a {Multimedia}-{Object}-{Server} - {Extended} {Summary}},
venue = {Heidelberg},
volume = {868},
year = {1994}
}
@inproceedings{faucris.116402484,
address = {London, U.K., Hershey, PA, USA},
author = {Märcz, Andreas and Meyer-Wegener, Klaus and Suchomski, Maciej},
booktitle = {Transformation of Knowledge, Information and Data: Theory and Applications},
faupublication = {yes},
isbn = {1-59140-527-0},
keywords = {media object, MO, multimedia data, MMO, transformation, conversion, MMDB, MMDBMS, audio video, continuous, time dependent, stream, timed, quant, graph of converters, chain of converters, QoS, QoD, QoE, quality, graph-based model, RETAVIC, memo.REAL, RTOS},
note = {UnivIS-Import:2015-04-16:Pub.2004.tech.IMMD.IMMD6.chapte},
pages = {235-256},
peerreviewed = {Yes},
publisher = {Information Science Publishing INFOSCI},
title = {{Multimedia} {Conversion} with the {Focus} on {Continuous} {Media}},
year = {2004}
}
@book{faucris.117896724,
address = {Stuttgart},
author = {Meyer-Wegener, Klaus},
faupublication = {yes},
isbn = {3-519-02419-5},
keywords = {Multimedia; Datenbanken; Datenunabhängigkeit},
note = {UnivIS-Import:2015-04-02:Pub.1991.tech.IMMD.IMMD6.mulitm},
pages = {236},
peerreviewed = {Yes},
publisher = {B. G. Teubner},
series = {Leitfäden der angewandten Informatik},
title = {{Multimedia}-{Datenbanken}},
year = {1991}
}
@incollection{faucris.119270624,
address = {München-Wien},
author = {Meyer-Wegener, Klaus},
booktitle = {Taschenbuch Medieninformatik},
edition = {1},
editor = {Bruns Kai, Meyer-Wegener Klaus},
faupublication = {yes},
isbn = {3-446-40299-3},
keywords = {Multimedia; Datenbanken; Datenunabhängigkeit},
note = {UnivIS-Import:2015-04-20:Pub.2005.tech.IMMD.IMMD6.multim},
pages = {278-297},
peerreviewed = {No},
publisher = {Fachbuchverlag Leipzig im Carl Hanser Verlag},
title = {{Multimedia}-{Datenbanken}},
year = {2005}
}
@article{faucris.115470344,
author = {Marder, Ulrich and Robbert, Günther and Meyer-Wegener, Klaus},
faupublication = {yes},
journal = {Wissenschaftliche Beiträge zur Informatik},
note = {UnivIS-Import:2015-03-05:Pub.1997.tech.IMMD.IMMD6.multim},
pages = {96-102},
peerreviewed = {No},
title = {{Multimediale} {Annotationen} in {Workflows}: {Erfahrungen} aus dem {VORTEL}-{Projekt}},
year = {1997}
}
@book{faucris.120938664,
address = {Wiesbaden},
author = {Meyer-Wegener, Klaus},
edition = {2},
faupublication = {yes},
isbn = {3-519-12419-X},
keywords = {Multimedia, Datenbanken, Datenunabhängigkeit},
note = {UnivIS-Import:2015-04-02:Pub.2003.tech.IMMD.IMMD6.multim},
pages = {236},
publisher = {B. G. Teubner Verlag / GMV Fachverlage GmbH},
series = {Leitfäden der Informatik},
title = {{Multimediale} {Datenbanken}: {Einsatz} von {Datenbanktechnik} in {Multimedia}-{Systemen}},
url = {https://www6.cs.fau.de/people/kmw/MMDB-Buch/},
year = {2003}
}
@inproceedings{faucris.118468724,
author = {Nagy, Robert and Dicker, Anders and Meyer-Wegener, Klaus},
booktitle = {Camera-Based Document Analysis and Recognition},
doi = {10.1007/978-3-642-29364-1{\_}12},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2011.tech.IMMD.IMMD6.neocra},
pages = {53-58},
peerreviewed = {Yes},
title = {{NEOCR}: {A} {Configurable} {Dataset} for {Natural} {Image} {Text} {Recognition}},
venue = {Beijing, China},
year = {2011}
}
@misc{faucris.120457304,
author = {Meyer-Wegener, Klaus},
faupublication = {yes},
note = {UnivIS-Import:2015-03-05:Pub.1992.tech.IMMD.IMMD6.neuein},
peerreviewed = {No},
title = {{Neue} {Informationen} "in {Sicht}": {Nutzung} von {Datenbanktechnik} in {Multimedia}-{Systemen}},
year = {1992}
}
@inproceedings{faucris.118049624,
address = {Wroclaw, Poland},
author = {Meyerhöfer, Marcus and Meyer-Wegener, Klaus and Suchomski, Maciej},
booktitle = {Proc. 1st International Workshop on Multimedia Information Systems Technology},
faupublication = {yes},
isbn = {83-7085-808-2},
keywords = {multimedia server, QoS, open architecture, plugin technology, format independence, multimedia objects, media delivery, format independence, prototype, J2EE, JBoss, streaming},
note = {UnivIS-Import:2015-04-16:Pub.2004.tech.IMMD.IMMD6.openan},
pages = {213-222},
peerreviewed = {Yes},
publisher = {Oficyna Wydawnizcza Politechniki Wroclawskiej},
title = {{Open} and {Reconfigurable} {Multimedia} {Server} {Architecture}},
venue = {Szklarska Poreba, Poland},
year = {2004}
}
@inproceedings{faucris.121695904,
abstract = {Today, Sensor Network Query Processors (SNQPs) are being integrated with Data Stream Management Systems (DSMSs). Due to the query capabilities of SNQPs, query processing can be extended from the DSMS into the sensor network. The problem then is to decide which operators should be allocated to the SNQP rather than being processed in the DSMS. This paper presents a first solution to this problem. Operators are classified as movable or not movable. Next, a QoS-based rating model, a two-stage neighborhood function browsing through the set of possible operator allocations, and an optimization algorithm using heuristics are introduced. Finally, it is shown how the operator allocation process fits into the Borealis optimization. © 2006 IEEE.},
address = {Los Alamitos, CA},
author = {Lindner, Wolfgang and Meyer-Wegener, Klaus and Velge, Holger},
booktitle = {Mobile Location-Aware Sensor Networks},
date = {2006-05-10/2006-05-12},
doi = {10.1109/MDM.2006.120},
faupublication = {yes},
isbn = {0-7695-2526-1},
note = {UnivIS-Import:2015-04-16:Pub.2006.tech.IMMD.IMMD6.operat},
pages = {155},
peerreviewed = {Yes},
publisher = {IEEE CS Press},
title = {{Operator} {Allocation} in {Borealis} with {Integrated} {Sensor} {Network} {Query} {Processors}},
venue = {Nara, Japan},
year = {2006}
}
@inproceedings{faucris.107009584,
address = {New York, NY, USA},
author = {Pollner, Thomas Niko and Steudtner, Christian Thomas and Meyer-Wegener, Klaus},
booktitle = {DEBS '15 Proceedings of the 9th ACM International Conference on Distributed Event-Based Systems},
date = {2015-06-29/2015-07-03},
doi = {10.1145/2675743.2776769},
faupublication = {yes},
isbn = {978-1-4503-3286-6},
keywords = {algorithms; data stream processing; distributed systems; heuristics; operator fission; operator placement; DSAM},
note = {UnivIS-Import:2015-07-08:Pub.2015.tech.IMMD.IMMD6.operat},
pages = {332-335},
peerreviewed = {Yes},
publisher = {ACM},
title = {{Operator} {Fission} for {Load} {Balancing} in {Distributed} {Heterogeneous} {Data} {Stream} {Processing} {Systems}},
venue = {Oslo},
year = {2015}
}
@inproceedings{faucris.118408004,
abstract = {A topic of growing interest in a wide range of domains is the similarity of data entries. Data sets of genome sequences, text corpora, complex production information, and multimedia content are typically large and unstructured, and it is expensive to compute similarities in them. The only common denominator a data structure for efficient similarity search can rely on are the metric axioms. One such data structure for efficient similarity search in metric spaces is the M-Tree, along with a number of compatible extensions (e.g. Slim-Tree, Bulk Loaded M-Tree, multiway insertion M-Tree, M^2-Tree, etc.). The M-Tree family uses common algorithms for the k-nearest-neighbor and range search. In this paper we present new algorithms for these tasks to considerably improve retrieval performance of all M-Tree-compatible data structures.
However, distributed query processing on probably heterogeneous platforms complicates query optimization. This article investigates query optimization through operator graph changes and its interaction with operator placement on heterogeneous distributed systems. Pre-distribution operator graph changes may prevent certain operator placements. Thereby the resource consumption of the query execution may unexpectedly increase. Based on the operator placement problem modeled as a task assignment problem (TAP), we prove that it is NP-hard to decide in general whether an arbitrary operator graph change may negatively influence the best possible TAP solution. We present conditions for several specific operator graph changes that guarantee to preserve the best possible TAP solution.}, address = {Bonn}, author = {Pollner, Thomas Niko and Steudtner, Christian Thomas and Meyer-Wegener, Klaus}, booktitle = {Datenbanksysteme für Business, Technologie und Web (BTW 2015) - Workshopband}, date = {2015-03-03/2015-03-03}, editor = {Ritter N, Henrich A, Lehner W, Thor A, Friedrich S, Wingerath W}, faupublication = {yes}, isbn = {978-3-88579-636-7}, keywords = {data stream systems, query optimization, operator placement, distributed data stream processing, heterogeneous systems, DSAM}, note = {UnivIS-Import:2015-04-17:Pub.2015.tech.IMMD.IMMD6.placem}, pages = {61-70}, peerreviewed = {Yes}, publisher = {Gesellschaft für Informatik (GI)}, series = {Lecture Notes in Informatics (LNI) - Proceedings}, title = {{Placement}-{Safe} {Operator}-{Graph} {Changes} in {Distributed} {Heterogeneous} {Data} {Stream} {Systems}}, url = {http://www6.informatik.uni-erlangen.de/publications/public/2015/btw15{\_}pollner.pdf}, venue = {Hamburg}, volume = {P-242}, year = {2015} } @inproceedings{faucris.115325584, author = {Härder, Theo and Meyer-Wegener, Klaus and Mitschang, Bernhard and Sikeler, Andrea}, booktitle = {Very Large Data Bases}, faupublication = {yes}, keywords = {Technische Datenbanken}, note = {UnivIS-Import:2015-04-16:Pub.1987.tech.IMMD.IMMD6.primaa}, pages = {433-442}, peerreviewed = {Yes}, title = {{PRIMA} - {A} {DBMS} {Prototype} {Supporting} {Engineering} {Applications}}, venue = {Brighton}, year = {1987} } @article{faucris.110309804, abstract = {A DBMS kernel architecture is proposed for improved DB support of engineering applications running on a cluster of workstations. Using such an approach, part of the DBMS code-an application-specific layer-is allocated close to the corresponding application on a workstation while the kernel code is executed on a central server. Emperical performance results from DB-based engineering applications are reported to justify the chosen DBMS architecture. The paper focuses on design issues of the application layer including server coupling, processing model and application interface. Moreover, a transaction model for long-term database work in a coupled workstation-server environment is investigated in detail. © 1988.}, author = {Härder, Theo and Hübel, Christoph and Meyer-Wegener, Klaus and Mitschang, Bernhard}, doi = {10.1016/0169-023X(88)90008-0}, faupublication = {yes}, journal = {Data & Knowledge Engineering}, keywords = {design transactions; Engineering databases; locality; object processing; workstation-server coupling}, note = {UnivIS-Import:2015-03-05:Pub.1988.tech.IMMD.IMMD6.proces}, pages = {87-107}, peerreviewed = {Yes}, title = {{Processing} and transaction concepts for cooperation of engineering workstations and a database server}, volume = {3}, year = {1988} } @inproceedings{faucris.118350584, abstract = {Data Stream SystemsDSS use cost models to determine if a DSS can cope with a given workload and to optimize query graphs. However, certain relevant input parameters of these models are often unknown or highly imprecise. Especially selectivities are stream-dependent and application-specific parameters. In this paper, we describe a method that supports selectivity estimation considering input streams' attribute value distribution. The novelty of our approach is the propagation of the probability distributions through the query graph in order to give estimates for the inner nodes of the graph. For most common stream operators, we establish formulas that describe their output distribution as a function of their input distributions. For unknown operators like User-Defined OperatorsUDO, we introduce a method to measure the influence of these operators on arbitrary probability distributions. This method is able to do most of the computational work before the query is deployed and introduces minimal overhead at runtime. Our evaluation framework facilitates the appropriate combination of both methods and allows to model almost arbitrary query graphs. © 2010 Springer-Verlag Berlin Heidelberg.}, address = {Heidelberg}, author = {Daum, Michael and Lauterwald, Frank and Baumgärtel, Philipp and Meyer-Wegener, Klaus}, booktitle = {Scientific and Statistical Database Management: 22nd International Conference}, date = {2010-06-30/2010-07-02}, doi = {10.1007/978-3-642-13818-8{\_}40}, edition = {1st}, faupublication = {yes}, isbn = {978-3-642-13817-1}, note = {UnivIS-Import:2015-04-16:Pub.2010.tech.IMMD.IMMD6.propag}, pages = {584-601}, peerreviewed = {Yes}, publisher = {Springer-verlag}, title = {{Propagation} of {Densities} of {Streaming} {Data} within {Query} {Graphs}}, url = {http://www6.informatik.uni-erlangen.de/publications/public/2010/ssdbm2010{\_}daum.pdf}, venue = {Heidelberg}, year = {2010} } @inproceedings{faucris.116209544, author = {Schmidt, Sven and Märcz, Andreas and Lehner, Wolfgang and Suchomski, Maciej and Meyer-Wegener, Klaus}, booktitle = {Proceedings of the Ninth International Conference on Distributed Multimedia Systems}, faupublication = {yes}, keywords = {QoS, Modelling, Format Independence, MultimediaObjects, Delivery, Conversion in Realtime, Chain of Converters, Scheduling}, note = {UnivIS-Import:2015-04-16:Pub.2003.tech.IMMD.IMMD6.qualit}, pages = {90-93}, peerreviewed = {Yes}, title = {{Quality}-of-{Service} {Based} {Delivery} of {Multimedia} {Database} {Objects} without {Compromising} {Format} {Independence}}, venue = {Miami, Florida, USA}, year = {2003} } @inproceedings{faucris.123166164, author = {Schwab, Peter and Wahl, Andreas Maximilian and Lenz, Richard and Meyer-Wegener, Klaus}, booktitle = {Proc. Conf. "Lernen, Wissen, Daten, Analysen"}, date = {2016-09-12/2016-09-14}, faupublication = {yes}, keywords = {Data integration; Database; Query}, note = {UnivIS-Import:2017-01-09:Pub.2016.tech.IMMD.IMMD6.queryd}, pages = {206-211}, peerreviewed = {unknown}, publisher = {CEUR-WS}, series = {CEUR Workshop Proceedings}, title = {{Query}-driven {Data} {Integration} ({Short} {Paper})}, url = {http://ceur-ws.org/Vol-1670/paper-48.pdf}, venue = {Potsdam, Germany}, volume = {1670}, year = {2016} } @inproceedings{faucris.215931470, address = {78457 Konstanz, Germany}, author = {Schwab, Peter and Wahl, Andreas Maximilian and Matschinske, Julian O. and Meyer-Wegener, Klaus}, booktitle = {OpenProceedings.org 2019}, date = {2019-03-26/2019-03-29}, doi = {10.5441/002/edbt.2019.69}, faupublication = {yes}, isbn = {978-3-89318-081-3}, keywords = {Query-Driven; Data Minimization; Data Privacy; Schema analysis}, pages = {614-617}, peerreviewed = {Yes}, publisher = {OpenProceedings.org University of Konstanz University Library}, title = {{Query}-{Driven} {Data} {Minimization} with the {DataEconomist}}, url = {https://openproceedings.org/2019/conf/edbt/EDBT19{\_}paper{\_}365.pdf}, venue = {Lisbon, Portugal}, year = {2019} } @inproceedings{faucris.203471919, abstract = {Data privacy is currently a topic in vogue for many organizations. Many of them run enterprise data lakes as data source for an ungoverned ecosystem, wherein they have no overview concerning data processing. They aim for mechanisms that require unsophisticated implementation, are easy to use, assume as little technical knowledge as possible, and enable their privacy officers to determine who processes which data when and for which purpose.
To overcome these challenges, we present a framework for query-driven enforcement of rule-based policies to achieve data-privacy compliance. Our framework can be integrated minimally intrusive in existing IT landscapes. In contrast to existing approaches, privacy officers do not require profound technical knowledge because our framework also enables non-experts in evaluating data processing in SQL queries by intuitionally comprehensive, tree-shaped visualizations. Queries can be classified as legal or illegal regarding data-privacy compliance. We provide a domain-specific language for defining policy rules that can be enforced automatically and in real-tim}, author = {Matschinske, Julian O.}, booktitle = {Proc. Conf. "Lernen, Wissen, Daten, Analysen"}, date = {2019-09-30/2019-10-02}, editor = {Robert Jäschke, Matthias Weidlich}, faupublication = {yes}, keywords = {Classification Rules; Data Privacy; Query-Driven}, pages = {42-53}, peerreviewed = {Yes}, publisher = {CEUR-WS}, title = {{Query}-{Driven} {Enforcement} of {Rule}-{Based} {Policies} for {Data}-{Privacy} {Compliance}}, url = {http://ceur-ws.org/Vol-2454/paper{\_}56.pdf}, venue = {Berlin, Germany}, year = {2019} } @inproceedings{faucris.227277231, author = {Schwab, Peter and Langohr, Maximilian and Röckl, Jonas and Vöhringer, Demian and Wahl, Andreas Maximilian and Meyer-Wegener, Klaus}, booktitle = {Proc. Conf. "Lernen, Wissen, Daten, Analysen"}, date = {2019-09-30/2019-10-02}, faupublication = {yes}, keywords = {Classification Rules; Data Privacy; Query-Driven}, pages = {42-53}, peerreviewed = {Yes}, publisher = {CEUR-WS}, title = {{Query}-{Driven} {Enforcement} of {Rule}-{Based} {Policies} for {Data}-{Privacy} {Compliance}}, url = {http://ceur-ws.org/Vol-2454/paper{\_}56.pdf}, venue = {Berlin, Germany}, year = {2019} } @inproceedings{faucris.118259944, abstract = {We present an integrated approach for supporting in-network sensor data processing in dynamic and heterogeneous sensor networks. The concept relies on data stream processing techniques that define and optimize the distribution of queries and their operators. We anticipate a high degree of dynamics and heterogeneity in the network, which is expected to be the case for wildlife monitoring applications. The distribution of operators to individual nodes demands several system level capabilities not available in current sensor node operating systems. In particular, we developed means for replacing software modules, i.e. small applications, on demand and without loss of status information. In order to facilitate this operation, we added a lightweight module support for the Nut/OS system and implemented a new memory management that uses tags for preserving state across module updates and node reboots.}, author = {Dressler, Falko and Kapitza, Rüdiger and Daum, Michael and Strübe, Moritz and Schröder-Preikschat, Wolfgang and German, Reinhard and Meyer-Wegener, Klaus}, booktitle = {Proc. of 16. GI/ITG Fachtagung Kommunikation in Verteilten Systemen}, date = {2009-03-02/2009-03-06}, doi = {10.1007/978-3-540-92666-5{\_}5}, faupublication = {yes}, keywords = {RDSP}, note = {UnivIS-Import:2015-04-16:Pub.2009.tech.IMMD.IMMD4.{\_}query}, pages = {55-66}, peerreviewed = {Yes}, title = {{Query} {Processing} and {System}-{Level} {Support} for {Runtime}-{Adaptive} {Sensor} {Networks}}, url = {http://www4.informatik.uni-erlangen.de/~rrkapitz/pubs/kivs-query.pdf}, venue = {Kassel}, year = {2009} } @article{faucris.106298544, abstract = {Recent years have brought rising interest in efficiently searching for similar entities in a broad range of domains. Such search can be used to facilitate working with unstructured data such as genome sequences, text corpora, complex production information, or multimedia content, where queries always contain an amount of noise. In such domains the only common structure is a distance function obeying the axioms of a metric. As mostly no other structure information is available, a lot of distances have to be computed during the course of a search. Contrary to classical database indexes, where the optimization focus is on reducing the number of disk accesses (or in case of in-memory databases the number of tree traversal operations), a major cost driver in such multimedia domains is this number of distance calculations which can be very computation intense.
There exists a range of index structures for supporting similarity search in metric spaces. A very promising one is the M-Tree, along with a number of compatible extensions (e. g. Slim-Tree, Bulk Loaded M-Tree, multi way insertion M-Tree, M2-Tree, etc.). The M-Tree family uses common algorithms for the k-nearest-neighbor and range search. These algorithms leave room for optimization in terms of necessary distance calculations. In this paper we present new algorithms for these tasks to considerably improve retrieval performance of all M-Tree-compatible data structures.},
author = {Guhlemann, Steffen and Petersohn, Uwe and Meyer-Wegener, Klaus},
doi = {10.1007/s13222-017-0258-5},
faupublication = {yes},
journal = {Datenbank-Spektrum},
keywords = {Metric databases;Metric access methods; Index structures; Multimedia databases; Selectivity estimation; Similarity search},
pages = {155-167},
peerreviewed = {unknown},
title = {{Reducing} the {Distance} {Calculations} when {Searching} an {M}-{Tree}},
url = {http://rdcu.be/tz7S},
volume = {17},
year = {2017}
}
@inproceedings{faucris.119300544,
abstract = {In a situation where many different output formats tailored to certain environments must be generated upon request from a single generic storage format of a video object, transformations in real-time must be available. The paper introduces the building blocks of a system that can provide such transformations. A non-real-time preparation phase produces a layered lossless format and also does content analysis. Meta-data extracted here are later used to control and simplify the transcoding process performed in real-time. The worst-case-to-average ratio is reduced significantly, allowing for better scheduling, reduced buffer sizes, and higher admission rates. The paper describes the details of this approach and provides an evaluation. Copyright 2005 ACM.},
address = {New York, NY, USA},
author = {Suchomski, Maciej and Meyer-Wegener, Klaus and Militzer, Michael},
booktitle = {Network and Operating Systems Support for Digital Audio and Video},
date = {2005-06-13/2005-06-14},
doi = {10.1145/1065983.1066003},
faupublication = {yes},
keywords = {Real-time; layered lossless video coding, format independence; transcoding, video conversion, media servers, video streaming, scalable storage},
note = {UnivIS-Import:2015-04-16:Pub.2005.tech.IMMD.IMMD6.retavi},
pages = {81-86},
peerreviewed = {Yes},
publisher = {ACM Press},
title = {{RETAVIC}: {Using} {Meta}-{Data} for {Real}-{Time} {Video} {Encoding} in {Multimedia} {Servers}},
venue = {Stevenson, Washington, USA},
year = {2005}
}
@inproceedings{faucris.121432344,
author = {Baumgarten, Christoph and Marder, Ulrich and Robbert, Günther and Meyer-Wegener, Klaus},
booktitle = {ERCIM Workshop Proceedings - No. 96/W003},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1996.tech.IMMD.IMMD6.retrie},
pages = {73-82},
peerreviewed = {Yes},
title = {{Retrieving} {Information} in {Distributed} {Multimedia} {Databases}},
venue = {Prague},
year = {1996}
}
@inproceedings{faucris.108492164,
author = {Irmert, Florian and Fischer, Thomas and Meyer-Wegener, Klaus},
booktitle = {Proceedings of the 2008 international workshop on software engineering for adaptive and self-managing systems},
doi = {10.1145/1370018.1370036},
faupublication = {yes},
isbn = {978-1-60558-037-1},
note = {UnivIS-Import:2015-04-16:Pub.2008.tech.IMMD.IMMD6.runtim},
pages = {97-104},
peerreviewed = {Yes},
title = {{Runtime} adaption in a service-oriented component model},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2008/seams2008{\_}irmert.pdf},
venue = {Leipzig},
year = {2008}
}
@inproceedings{faucris.115854244,
abstract = {To build information systems today, a multimedia database system is needed which supports both structured data and media data. Because these two kinds of data differ significantly in their characteristics, the extension of traditional databases towards the support of media data is a very tedious task. As an alternative, the intelligent coupling of specialized component systems, i.e. traditional databases, media storage systems, and media retrieval systems, can be used to build a multimedia database system. In this paper, a global-schema construction methodology for a federation of these component systems is presented. It allows the unrestricted extension of the global schema. Furthermore, a schema-independent query processing module for global schemas constructed with this methodology is designed. It can handle the given distribution pattern. In addition, it explores the functionality of media retrieval systems concerning search functions and result restrictions. © Springer-Verlag Berlin Heidelberg 2001.},
address = {Heidelberg},
author = {Berthold, Henrike and Meyer-Wegener, Klaus},
booktitle = {Proc. 6th Int. Conf. on Cooperative Information Systems},
date = {2001-09-05/2001-09-07},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.2001.tech.IMMD.IMMD6.schema},
pages = {285-300},
peerreviewed = {Yes},
publisher = {Springer-verlag},
series = {Lecture Notes in Computer Science},
title = {{Schema} design and query processing in a federated multimedia database system},
venue = {Trento, Italy},
volume = {2172},
year = {2001}
}
@inproceedings{faucris.118276884,
abstract = {Database Management Systems (DBMSs) that can be tailored to specific requirements offer the potential to improve reliability and maintainability and simultaneously the ability to reduce the footprint of the code base. If the requirements of an application change during runtime the DBMS should be adapted without a shutdown. Runtime-adaptation is a new and promising research direction to dynamically change the behavior of a DBMS. Especially the adaptation of the Transaction Manager (TM) states a challenge. In this paper, we present the session semantics of a runtime-adaptable TM. We define preliminaries and assumptions to activate the TM during sessions from a conceptual point of view. The advantages and disadvanteges of different approaches are discussed, especially regarding the occurence of ANSI SQL phenomena. From a technical point of view, we define requirements for the architecture of the TM and the DBMS that arose in our prototype. Copyright ©2009 ACM.},
author = {Irmert, Florian and Lauterwald, Frank and Neumann, Christoph and Daum, Michael and Lenz, Richard and Meyer-Wegener, Klaus},
booktitle = {Proceedings of the International Database Engineering and Applications Symposium},
date = {2009-09-19/2009-09-21},
doi = {10.1145/1620432.1620442},
faupublication = {yes},
isbn = {978-1-60558-402-7},
keywords = {Adaptation; Runtime; SQL phenomena; Transaction management},
note = {UnivIS-Import:2015-04-16:Pub.2009.tech.IMMD.IMMD6.semant},
pages = {88-96},
peerreviewed = {Yes},
series = {ACM International Conference Proceeding Series},
title = {{Semantics} of a {Runtime} {Adaptable} {Transaction} {Manager}},
url = {http://www6.informatik.uni-erlangen.de/publications/public/2009/ideas2009{\_}irmert.pdf},
venue = {Cetraro, Calabria, Italy},
year = {2009}
}
@inproceedings{faucris.115316124,
address = {Berlin},
author = {Meyer-Wegener, Klaus},
booktitle = {Messung, Modellierung und Bewertung von Rechensystemen},
faupublication = {yes},
note = {UnivIS-Import:2015-04-16:Pub.1985.tech.IMMD.IMMD6.simula},
pages = {233-250},
peerreviewed = {Yes},
publisher = {Springer},
series = {Informatik-Fachberichte},
title = {{Simulation} von {DB}/{DC}-{Systemen}},
venue = {Dortmund},
volume = {110},
year = {1985}
}
@inproceedings{faucris.318586576,
abstract = {To test and evaluate a heterogeneous stream-processing system consisting of an FPGA-based system-on-chip and a host,we develop a benchmark called SKYSHARK. It uses real-world data from air-traffic control that is publicly available. These data are enhanced for the purpose of the benchmark without changing their characteristics. They are further enriched with aircraft and airport data. We define 14 queries with respect to the particular requirements of our system. They should be useful for other hardware-accelerated platforms as well. A first evaluation has been done using Apache Flink. We envision a great potential because of the flexibility of the approach.
During our demonstration, conference attendees assess our system in several scenarios. They filter queries based on various query meta-information, learn how to define compliance policies for automatic query classification without profound technical knowledge, and test this classification by formulating non-compliant querie}, address = {New York, NY, United States}, author = {Schwab, Peter and Langohr, Maximilian and Meyer-Wegener, Klaus}, booktitle = {SSDBM 2020: 32nd International Conference on Scientific and Statistical Database Management}, date = {2020-07-07/2020-07-09}, doi = {10.1145/3400903.3401692}, editor = {Association for Computing Machinery}, faupublication = {yes}, isbn = {978-1-4503-8814-6}, keywords = {query classification; compliance; privacy; policy; query-log analysis}, pages = {30:1 - 30:4}, peerreviewed = {Yes}, publisher = {International Conference Proceeding Series (ICPS)}, title = {{We} {Know} {What} {You} {Did} {Last} {Session}: {Policy}-{Based} {Query} {Classification} for {Data}-{Privacy} {Compliance} {With} the {DataEconomist}}, venue = {Vienna, Virtual Conference}, year = {2020} } @inproceedings{faucris.121112024, address = {Heidelberg}, author = {Christmann, Hans-Peter and Härder, Theo and Meyer-Wegener, Klaus and Sikeler, Andrea}, booktitle = {Proceedings of the International Workshop on Experiences with Distributed Systems 1987}, faupublication = {yes}, isbn = {978-3-540-19333-3}, note = {UnivIS-Import:2015-04-16:Pub.1988.tech.IMMD.IMMD6.whichk}, pages = {213-252}, peerreviewed = {No}, publisher = {Springer Berlin}, series = {Lecture Notes in Computer Science}, title = {{Which} {Kinds} of {OS} {Mechanisms} {Should} be {Provided} for {Database} {Management}?}, venue = {Kaiserslautern}, volume = {309}, year = {1988} } @article{faucris.214738060, author = {Meyer-Wegener, Klaus}, doi = {10.1007/s13222-019-00311-0}, faupublication = {yes}, journal = {Datenbank-Spektrum}, keywords = {Blockchain; Kryptowährungen; Bitcoin}, pages = {67-71}, peerreviewed = {Yes}, title = {{Wie} funktioniert die {Blockchain}?}, volume = {19}, year = {2019} } @misc{faucris.106720944, author = {Aigner, Ronald and Franz, Elke and Göbel, Steffen and Härtig, Hermann and Hußmann, Heinrich and Meißner, Klaus and Meyer-Wegener, Klaus and Meyerhöfer, Marcus and Pfitzmann, Andreas and Pohl, Christoph and Pohlack, Martin and Röttger, Simone and Schill, Alexander and Wehner, Frank and Zschaler, Steffen}, faupublication = {yes}, keywords = {QoS; Modelling; Components; Software Engineering; DFG-FOR-428}, note = {UnivIS-Import:2016-06-30:Pub.2003.tech.IMMD.IMMD6.zwisch}, peerreviewed = {automatic}, title = {{Zwischenbericht} der {DFG}-{Forschergruppe} 428 "{Components} with {Quantitative} {Properties} and {Adaptivity}" ({COMQUAD})}, year = {2003} }