# This BibTeX File has been generated by # the Typo3 extension 'Sixpack-4-T3 by Sixten Boeck' # # URL: # Date: 04/30/2017 # Non-Standard BibTex fields are included. # state: 0 = published, 1 = accepted, 2 = submitted, 3 = to be published // if missing, published is assumed # extern,deleted,hidden: 0 = false, 1 = true // if missing, false is assumed # link format: Title Url // separated by a whitespace @article{2016_Knuth_arxiv, author = { Magnus Knuth, Olaf Hartig, Harald Sack }, title = { Scheduling Refresh Queries for Keeping Results from a SPARQL Endpoint Up-to-Date (Extended Version) }, journal = { CoRR }, year = { 2016 }, volume = { abs/1608.08130 }, abstract = { Many datasets change over time. As a consequence, long-running applications that cache and repeatedly use query results obtained from a SPARQL endpoint may resubmit the queries regularly to ensure up-to-dateness of the results. While this approach may be feasible if the number of such regular refresh queries is manageable, with an increasing number of applications adopting this approach, the SPARQL endpoint may become overloaded with such refresh queries. A more scalable approach would be to use a middle-ware component at which the applications register their queries and get notified with updated query results once the results have changed. Then, this middle-ware can schedule the repeated execution of the refresh queries without overloading the endpoint. In this paper, we study the problem of scheduling refresh queries for a large number of registered queries by assuming an overload-avoiding upper bound on the length of a regular time slot available for testing refresh queries. We investigate a variety of scheduling strategies and compare them experimentally in terms of time slots needed before they recognize changes and number of changes that they miss. }, keywords = { Web 3.0, Semantic Web, SPARQL }, url = { http://arxiv.org/abs/1608.08130 }, sorting = { 11776 } } @article{knuth-m-2015-patchr, author = { Magnus Knuth, Harald Sack }, title = { PatchR: A Framework for Linked Data Change Requests }, journal = { International Journal on Semantic Web and Information Systems (IJSWIS) }, year = { 2015 }, volume = { 11 }, number = { 1 }, pages = { 30-45 }, keywords = { patchr rdf }, publisher = { IGI Global }, issn = { 1552-6283 }, sorting = { 16128 } } @article{Jörg2011a, author = { Jörg Waitelonis Nadine Ludwig Magnus Knuth Harald Sack }, title = { Whoknows? - Evaluating Linked Data Heuristics with a Quiz that cleans up DBpedia }, journal = { International Journal of Interactive Technology and Smart Education (ITSE) }, year = { 2011 }, volume = { 8 }, number = { 4 }, pages = { 236-248 }, abstract = { Purpose – Linking Open Data (LOD) provides a vast amount of well structured semantic information, but many inconsistencies may occur, especially if the data are generated with the help of automated methods. Data cleansing approaches enable detection of inconsistencies and overhauling of affected data sets, but they are difficult to apply automatically. The purpose of this paper is to present WhoKnows?, an online quiz that generates different kinds of questionnaires from DBpedia data sets. Design/methodology/approach – Besides its playfulness, WhoKnows? has been developed for the evaluation of property relevance ranking heuristics on DBpedia data, with the convenient side effect of detecting inconsistencies and doubtful facts. Findings – The original purpose for developing WhoKnows? was to evaluate heuristics to rank LOD properties and thus, obtain a semantic relatedness between entities according to the properties by which they are linked. The presented approach is an efficient method to detect popular properties within a limited amount of triples. Ongoing work continues in the development of sound property ranking heuristics for the purpose of detecting the most relevant characteristics of entities. Originality/value – WhoKnows? uses the approach of “Games with a Purpose” to detect inconsistencies in Linked Data and score properties to rank them for sophisticated semantic search scenarios. }, url = { file:176272 }, publisher = { Emerald Group, Bingley (UK) }, link1 = { http://www.emeraldinsight.com/doi/full/10.1108/17415651111189478 }, sorting = { 13568 } } @proceedings{2016_Debattista_MEPDaW+LDQ, author = { Jeremy Debattista, Javier D. Fernández, Magnus Knuth, Dimitris Kontokostas, Anisa Rula, Jürgen Umbrich, Amrapali Zaveri }, title = { Joint proceedings of the 2nd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW 2016) and the 3rd Workshop on Linked Data Quality (LDQ 2016) }, year = { 2016 }, number = { 1585 }, abstract = { This joint volume of proceedings gathers together papers from the 2nd Workshop on Managing the Evolution and Preservation of the Data Web (MEPDaW) and the 3rd Workshop on Linked Data Quality (LDQ), held on the 30th of May of 2016 during the 13th ESWC conference in Anissaras, Crete, Greece. }, keywords = { Web 3.0, Semantic Web }, url = { http://ceur-ws.org/Vol-1585/ }, publisher = { CEUR.org }, series = { CEUR Workshop Proceedings }, sorting = { 6912 } } @inproceedings{2016_Knuth_ICWE, author = { Magnus Knuth, Jörg Waitelonis, Harald Sack }, title = { I am a Machine, let me understand Web Media! }, year = { 2016 }, pages = { 467--475 }, keywords = { Web 3.0, Semantic Web }, url = { http://hpi.de/fileadmin/user_upload/fachgebiete/meinel/Semantic-Technologies/paper/2016Knuth-ICWE2016.pdf }, publisher = { Springer International Publishing }, series = { LNCS }, booktitle = { Web Engineering: 16th International Conference, ICWE 2016, Lugano, Switzerland, June 6-9, 2016. Proceedings }, isbn = { 978-3-319-38791-8 }, doi = { 10.1007/978-3-319-38791-8_33 }, sorting = { 15104 } } @inproceedings{2016_Knuth_ODBASE, author = { Magnus Knuth, Olaf Hartig, Harald Sack }, title = { Scheduling Refresh Queries for Keeping Results from a SPARQL Endpoint Up-to-Date }, year = { 2016 }, abstract = { Many datasets change over time. As a consequence, long-running applications that cache and repeatedly use query results obtained from a SPARQL endpoint may resubmit the queries regularly to ensure up-to-dateness of the results. While this approach may be feasible if the number of such regular refresh queries is manageable, with an increasing number of applications adopting this approach, the SPARQL endpoint may become overloaded with such refresh queries. A more scalable approach would be to use a middle-ware component at which the applications register their queries and get notified with updated query results once the results have changed. Then, this middle-ware can schedule the repeated execution of the refresh queries without overloading the endpoint. In this paper, we study the problem of scheduling refresh queries for a large number of registered queries by assuming an overload-avoiding upper bound on the length of a regular time slot available for testing refresh queries. We investigate a variety of scheduling strategies and compare them experimentally in terms of time slots needed before they recognize changes and number of changes that they miss. }, keywords = { Web 3.0, Semantic Web, SPARQL }, booktitle = { Proc. of the 15th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2016) }, files = { fileadmin/user_upload/fachgebiete/meinel/papers/Web_3.0/2016Knuth-ODBASE.pdf }, sorting = { 11520 } } @inproceedings{2016_Fernandez_SEMANTiCS, author = { Javier D. Fernández, Jürgen Umbrich, Axel Polleres, Magnus Knuth }, title = { Evaluating Query and Storage Strategies for RDF Archives }, year = { 2016 }, pages = { 41--48 }, abstract = { There is an emerging demand on efficiently archiving and (temporal) querying different versions of evolving semantic Web data. As novel archiving systems are starting to address this challenge, foundations/standards for benchmarking RDF archives are needed to evaluate its storage space efficiency and the performance of different retrieval operations. To this end, we provide theoretical foundations on the design of data and queries to evaluate emerging RDF archiving systems. Then, we instantiate these foundations along a concrete set of queries on the basis of a real-world evolving dataset. Finally, we perform an empirical evaluation of various current archiving techniques and querying strategies on this data. Our work comprises -- to the best of our knowledge -- the first benchmark for querying evolving RDF data archives. }, keywords = { Web 3.0, Semantic Web }, url = { http://dl.acm.org/citation.cfm?id=2993333 }, publisher = { ACM }, booktitle = { Proceedings of the 12th International Conference on Semantic Systems }, isbn = { 978-1-4503-4752-5 }, sorting = { 7168 } } @inproceedings{2016_Dojchinovski_SEMANTiCS, author = { Milan Dojchinovski, Dimitris Kontokostas, Robert Rößling, Magnus Knuth, Sebastian Hellmann }, title = { DBpedia Links: The Hub of Links for the Web of Data }, year = { 2016 }, abstract = { Links are the key enabler for retrieval of related information on the Web of Data. Currently, DBpedia is one of the central interlinking hubs in the Linked Open Data (LOD) cloud. With over 28 million of described and localized things it is one of the largest and open datasets. With the increasing number of linked datasets, there is need for proper maintenance of these links. In this paper, we describe the DBpedia Links repository, which maintains linksets between DBpedia and other LOD datasets. We describe the system for maintenance, update and quality assurance of the linksets. }, url = { https://svn.aksw.org/papers/2016/SEMANTiCS_DBpedia_Links/public.pdf }, booktitle = { Proceedings of the SEMANTiCS 2016 Conference (SEMANTiCS 2016) }, sorting = { 6656 } } @inproceedings{knuth-m-2015-dbpediaevents, author = { Magnus Knuth, Jens Lehmann, Dimitris Kontokostas, Thomas Steiner and Harald Sack }, title = { The DBpedia Events Dataset }, year = { 2015 }, number = { 1486 }, keywords = { iswc dbpedia event extraction }, editor = { Serena Villata, Jeff Z. Pan, Mauro Dragoni }, publisher = { CEUR-WS.org }, address = { Bethlehem, PA, USA }, booktitle = { Proceedings of the ISWC 2015 Posters & Demonstrations Track }, sorting = { 16640 } } @inproceedings{meinhardt-p-2015-tailr, author = { Paul Meinhardt, Magnus Knuth, Harald Sack }, title = { TailR: A Platform for Preserving History on the Web of Data }, year = { 2015 }, pages = { 57-64 }, editor = { Axel Polleres, Tassilo Pellegrini, Sebastian Hellmann, Josiane Xavier Parreira }, publisher = { ACM }, booktitle = { Proceedings of the 11th International Conference on Semantic Systems, SEMANTICS 2015 }, organization = { SEMANTICS }, isbn = { 978-1-4503-3462-4 }, sorting = { 16384 } } @inproceedings{vaidya-g-2015-dbpediacommons, author = { Gaurav Vaidya, Dimitris Kontokostas, Magnus Knuth, Jens Lehmann, Sebastian Hellmann }, title = { DBpedia Commons: Structured Multimedia Metadata from the Wikimedia Commons }, year = { 2015 }, volume = { 9367 }, pages = { 281--289 }, keywords = { dbpedia }, url = { file:197602 }, editor = { Marcelo Arenas, Oscar Corcho, Elena Simperl, Markus Strohmaier, Mathieu d'Aquin, Kavitha Srinivas, Paul T. Groth, Michel Dum }, publisher = { Springer }, series = { Lecture Notes in Computer Science }, address = { Bethlehem, PA, USA }, booktitle = { The Semantic Web - ISWC 2015 - 14th International Semantic Web Conference }, isbn = { 978-3-319-25009-0 }, sorting = { 15872 } } @inproceedings{knuth-m-2015-towards, author = { Magnus Knuth, Dinesh Reddy, Anastasia Dimou, Sahar Vahdati, George Kastrinakis }, title = { Towards Linked Data Update Notifications - Reviewing and Generalizing the {sparqlPuSH} approach }, journal = { Proceedings of the 1st Workshop on Negative or Inconclusive Results in Semantic Web (NoISE 2015) }, year = { 2015 }, editor = { Anastasia Dimou and Jacco van Ossenbruggen and Maria-Esther Vidal and Miel Vander Sande }, link1 = { http://2015.noise-workshop.org/assets/papers/NoISE2015_3.pdf }, sorting = { 29184 } } @inproceedings{knuth-m-2014-linkeddata, author = { Magnus Knuth }, title = { Linked Data Cleansing and Change Management }, journal = { Knowledge Engineering and Knowledge Management }, year = { 2014 }, volume = { 8982 }, pages = { 201-208 }, month = { 11 }, keywords = { phdsymp }, editor = { Lambrix, Patrick and Hyvönen, Eero and Blomqvist, Eva and Presutti, Valentina and Qi, Guilin and Sattler, Uli and Ding, Ying and Ghidini, Chiara }, publisher = { Springer International Publishing }, series = { Lecture Notes in Computer Science }, address = { Linköping, Sweden }, doi = { 10.1007/978-3-319-17966-7_29 }, link1 = { http://dx.doi.org/10.1007/978-3-319-17966-7_29 }, sorting = { 37120 } } @inproceedings{knuth-m-2014-patchrposter, author = { Magnus Knuth and Harald Sack }, title = { Data Cleansing Consolidation with PatchR }, year = { 2014 }, month = { 5 }, editor = { Presutti, V., Blomqvist, E., Troncy, R., Sack, H., Papadakis, I., Tordai, A. }, publisher = { Springer }, series = { Lecture Notes in Computer Science }, address = { Anissaras, Crete, Greece }, edition = { 8798 }, booktitle = { The Semantic Web: ESWC 2014 Satellite Events }, isbn = { 978-3-319-11954-0 }, sorting = { 38400 } } @inproceedings{coppens-s-2014-wasabi, author = { Sam Coppens, Karl Hammar, Magnus Knuth, Marco Neumann, Dominique Ritze, Miel Vander Sande }, title = { WaSABi 2014: Breakout Brainstorming Session Summary }, year = { 2014 }, month = { 5 }, editor = { Ángel García-Crespo, Juan Miguel Gómez Berbís, Mateusz Radzimski, José Luis Sánchez-Cervantes, Sam Coppens, Karl Hammar, Magnus Knuth, Marco Neumann, Dominique Ritze, Miel Vander Sande }, publisher = { CEUR-WS.org }, series = { CEUR Workshop Proceedings }, address = { Anissaras, Crete, Greece }, booktitle = { WaSABi-FEOSW@ESWC 2014 }, sorting = { 38144 } } @inproceedings{knuth-m-2014-ldq, author = { Magnus Knuth, Dimitris Kontokostas, Harald Sack }, title = { Linked Data Quality: Identifying and Tackling the Key Challenges }, year = { 2014 }, number = { 1215 }, url = { http://ceur-ws.org/Vol-1215/#paper-01 }, publisher = { CEUR-WS.org }, series = { CEUR Workshop Proceedings }, booktitle = { Proceedings of the 1st Workshop on Linked Data Quality (LDQ) }, sorting = { 37632 } } @inproceedings{steinmetz-n-2013-statistical, author = { Nadine Steinmetz, Magnus Knuth, Harald Sack }, title = { Statistical Analyses of Named Entity Disambiguation Benchmarks }, year = { 2013 }, month = { 10 }, url = { http://ceur-ws.org/Vol-1064/Steinmetz_Statistical.pdf }, address = { Sydney, Australia }, booktitle = { Proceedings of the NLP & DBpedia workshop co-located with the 12th International Semantic Web Conference (ISWC 2013) }, sorting = { 40192 } } @inproceedings{bergmann-t-2013-linkedsoccer, author = { Tanja Bergmann, Stefan Bunk, Johannes Eschrig, Christian Hentschel, Magnus Knuth, Harald Sack, Ricarda Schüler }, title = { Linked Soccer Data }, year = { 2013 }, month = { 9 }, note = { Best Demo Award: Honourable Mentioned Demo }, url = { http://ceur-ws.org/Vol-1026/paper6.pdf }, address = { Graz, Austria }, booktitle = { Proceedings of the I-SEMANTICS 2013 Posters & Demonstrations Track co-located with 9th International Conference on Semantic Systems (I-SEMANTICS 2013) }, sorting = { 39936 } } @inproceedings{thalhammer-a-2012-1, author = { Andreas Thalhammer, Magnus Knuth, Harald Sack }, title = { Evaluating Entity Summarization Using a Game-Based Ground Truth }, year = { 2012 }, month = { 11 }, publisher = { Springer }, address = { Boston, MA, USA }, booktitle = { Proceedings of 11th International Semantic Web Conference (ISWC 2012) }, project = { SEMGAMES }, sorting = { 54016 } } @inproceedings{toepper-g-2012-1, author = { Gerald Töpper, Magnus Knuth, Harald Sack }, title = { DBpedia Ontology Enrichment for Inconsistency Detection }, year = { 2012 }, month = { 9 }, publisher = { ACM }, address = { Graz, Austria }, booktitle = { Proceedings of the 8th International Conference on Semantic Systems (I-SEMANTICS 2012) }, sorting = { 54272 } } @inproceedings{2012_hentschel_mediaglobe, author = { Christian Hentschel, Johannes Hercher, Magnus Knuth, Johannes Osterhoff, Bernhard Quehl, Harald Sack, Nadine Steinmetz, Jörg Waitelonis, Haojin Yang }, title = { Open Up Cultural Heritage in Video Archives with Mediaglobe }, year = { 2012 }, month = { 6 }, series = { Lecture Notes in Informatics }, booktitle = { Proceedings of the 12th International Conference on Innovative Internet Community Services (I2CS 2012) }, project = { Future Internet; Web 3.0 }, files = { fileadmin/user_upload/fachgebiete/meinel/Semantic-Technologies/paper/Hentschel2012.pdf }, isbn = { 978-3-88579-298-7 }, sorting = { 55552 } } @inproceedings{knuth-m-2012-1, author = { Magnus Knuth, Johannes Hercher, Harald Sack }, title = { Collaboratively Patching Linked Data }, year = { 2012 }, pages = { 33-40 }, month = { 4 }, publisher = { ACM }, address = { Lyon, France }, booktitle = { Proceedings of 2nd International Workshop on Usage Analysis and the Web of Data (USEWOD) }, sorting = { 54784 } } @inproceedings{2011_Wolf_I-SEMANTICS, author = { Lina Wolf, Magnus Knuth, Johannes Osterhoff, und Harald Sack }, title = { RISQ! Renowned Individuals Semantic Quiz – A Jeopardy like Quiz Game for Ranking Facts }, year = { 2011 }, month = { 9 }, publisher = { ACM Press }, series = { ICPS }, address = { Graz, Austria }, booktitle = { Proceedings of 7th International Conference on Semantic Systems (I-SEMANTICS 2011) }, project = { Future Internet; Web 3.0; Mediaglobe; SEMGAMES }, language = { English }, files = { fileadmin/user_upload/fachgebiete/meinel/papers/Web_3.0/2011_Wolf_I-SEMANTICS.pdf }, sorting = { 112128 } } @inproceedings{2011_Knuth_MUSE, author = { Magnus Knuth, Nadine Ludwig, Lina Wolf, and Harald Sack }, title = { The Generation of User Interest Profiles from Semantic Quiz Games }, year = { 2011 }, month = { 9 }, address = { Athens, Greece }, booktitle = { Proceedings of the 2nd International Workshop on Mining Ubiquitous and Social Environments (MUSE 2011) }, project = { Future Internet; Web 3.0; Mediaglobe; SEMGAMES }, language = { English }, files = { fileadmin/user_upload/fachgebiete/meinel/papers/Web_3.0/2011_Knuth_MUSE.pdf }, sorting = { 111872 } } @inproceedings{2011_Ludwig_ESWC, author = { Nadine Ludwig, Jörg Waitelonis, Magnus Knuth, Harald Sack }, title = { WhoKnows? - Evaluating Linked Data Heuristics with a Quiz that Cleans Up DBpedia }, year = { 2011 }, number = { 6643 }, month = { 6 }, publisher = { Springer }, series = { LNCS }, address = { Heraklion, Greece }, howpublished = { Poster }, booktitle = { Proceedings of the 8th Extended Semantic Web Conference (ESWC 2011) }, project = { Future Internet; Web 3.0; Mediaglobe; SEMGAMES }, language = { English }, files = { fileadmin/user_upload/fachgebiete/meinel/papers/Web_3.0/2011_Ludwig_ESWC.pdf }, isbn = { 978-3-642-21033-4 }, sorting = { 111616 } } @inproceedings{waitelonisj-j-2011-whoknows, author = { Jörg Waitelonis, Nadine Ludwig, Magnus Knuth, Harald Sack }, title = { WhoKnows? - Evaluating Linked Data Heuristics with a Quiz that Cleans Up DBpedia }, journal = { International Journal of Interactive Technology and Smart Education (ITSE) }, year = { 2011 }, volume = { 8 }, number = { 3 }, pages = { 236-248 }, publisher = { Emerald }, booktitle = { International Journal of Interactive Technology and Smart Education (ITSE) }, project = { Future Internet; Web 3.0; Mediaglobe; SEMGAMES }, issn = { 1741-5659 }, sorting = { 39680 } } @inproceedings{2010_Waitelonis_LDFI, author = { Jörg Waitelonis, Magnus Knuth, Lina Wolf, Johannes Hercher, Harald Sack }, title = { The Path is the Destination -- Enabling a New Search Paradigm with Linked Data }, year = { 2010 }, volume = { 700 }, month = { 12 }, abstract = { Today, searching the World Wide Web in most cases turns out in looking for a specific item, which means that the user should know the item in advance. In the future internet, searching for infor- mation comes closer to the notion of ’window shopping’ by means of exploratory and semantic search technologies. In the course of the ex- ploratory search process the user constantly receives new information and establishes a personalized knowledge base. To make this possible, se- mantic search technologies utilize domain knowledge and semantic data, as e.g., Linked Open Data (LOD), to expand and refine search results, to derive cross-references, and to reveal implicitly hidden semantic rela- tions. Implementing semantic exploratory search requires various issues have to be solved including mapping text to semantic entities, detecting and cleaning inconsistencies in available LOD, ranking algorithms for se- mantic data and heuristics for recommendations, as well as appropriate visualizations of complex semantic relationships. This paper describes how LOD can be utilized to enable exploratory search systems for the future internet. }, keywords = { Semantic Search; Exploratory Search; Linked Open Data }, series = { CEUR Workshop Proceedings }, address = { Ghent, Belgium }, booktitle = { Proceedings of the Workshop on Linked Data in the Future Internet at the Future Internet Assembly (LDFI 2010) }, project = { Future Internet; Web 3.0; SEMSEARCH }, institution = { Hasso-Plattner-Institute, Potsdam, Germany }, language = { english }, files = { fileadmin/user_upload/fachgebiete/meinel/papers/Web_3.0/2010_Waitelonis_LDFI.pdf }, issn = { 1613-0073 }, sorting = { 135680 } }