@inproceedings{ conf/ijcai/VassosP13,
  added-at = {2013-09-24T10:30:01.000+0200},
  author = {Vassos, Stavros and Patrizi, Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/24eebb8f87cbdab88e45a761269b18f50/savo.fabio},
  booktitle = {IJCAI},
  crossref = {conf/ijcai/2013},
  editor = {Rossi, Francesca},
  ee = {http://www.aaai.org/ocs/index.php/IJCAI/IJCAI13/paper/view/6646},
  interhash = {77497c275ff8ead9f33888219570e3ee},
  intrahash = {4eebb8f87cbdab88e45a761269b18f50},
  isbn = {978-1-57735-633-2},
  keywords = {optique-project},
  publisher = {IJCAI/AAAI},
  title = {A Classification of First-Order Progressable Action Theories in Situation Calculus.},
  url = {http://dblp.uni-trier.de/db/conf/ijcai/ijcai2013.html#VassosP13},
  year = {2013}
}

@inproceedings{ conf/dlog/LemboSS13,
  added-at = {2013-09-17T15:31:50.000+0200},
  author = {Lembo, Domenico and Santarelli, Valerio and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/24f9aaeca83bb1e33ed1b3727eaabd741/savo.fabio},
  booktitle = {Description Logics},
  crossref = {conf/dlog/2013},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  ee = {http://ceur-ws.org/Vol-1014/paper_21.pdf},
  interhash = {b772c7c3f60d1c90c80b330996baaceb},
  intrahash = {4f9aaeca83bb1e33ed1b3727eaabd741},
  keywords = {myown optique-project},
  pages = {747-759},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {A Graph-Based Approach for Classifying OWL 2 QL Ontologies.},
  url = {http://dblp.uni-trier.de/db/conf/dlog/dlog2013.html#LemboSS13},
  volume = {1014},
  year = {2013}
}

@inproceedings{ soylu2013preliminary,
  added-at = {2013-09-16T16:25:25.000+0200},
  author = {Soylu, Ahmet and Skjæveland, Martin G. and Giese, Martin and Horrocks, Ian and Jimenez-Ruiz, Ernesto and Kharlamov, Evgeny and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/27f261fb8e2118bc300da4e1bdde4bd54/ahmetsoylu},
  booktitle = {7th Research Conference on Metadata and Semantics Research (MTSR 2013)},
  interhash = {fdce6e63469ef9b9f6908a72919e756a},
  intrahash = {7f261fb8e2118bc300da4e1bdde4bd54},
  keywords = {myown optique-project},
  publisher = {Springer-Verlag},
  title = {A Preliminary Approach on Ontology-based Visual Query Formulation for Big Data},
  year = {2013}
}

@inproceedings{ kwnolod_wp5,
  added-at = {2013-04-26T16:07:25.000+0200},
  author = {Horrocks, Ian and Hubauer, Thomas and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Koubarakis, Manolis and M̈oller, Ralf and Bereta, Konstantina and Neuenstadt, Christian and ̈Oz̧{c}ep, ̈Ozgür and Roshchin, Mikhail and Smeros, Panayiotis and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/223dfd4317d59c272464b0562b26e07a3/ernesto.jimenez},
  booktitle = {Workshop on Knowledge Discovery and Data Mining Meets Linked Open Data   (Know@LOD)},
  interhash = {a418e84834dd9ec52c34c0cf07b4e9b5},
  intrahash = {23dfd4317d59c272464b0562b26e07a3},
  keywords = {myown optique-project optiqueproject},
  title = {{Addressing Streaming and Historical Data in OBDA Systems: Optique's Approach (Statement of Interest)}},
  url = {http://www.cs.ox.ac.uk/files/5517/knowlod_wp5.pdf},
  year = {2013}
}

@inproceedings{ DBLP:conf/dlog/MollerNOW13ohneCross,
  added-at = {2013-10-24T11:06:29.000+0200},
  author = {Möller, Ralf and Neuenstadt, Christian and Öz̧{c}ep, Özgür L. and Wandelt, Sebastian},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  biburl = {http://www.bibsonomy.org/bibtex/26388d2154d0b5ed9af8c4df54ef4eeed/oezcep},
  booktitle = {Description Logics},
  date-added = {2013-10-24 11:05:24 +0200},
  date-modified = {2013-10-24 11:06:04 +0200},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  ee = {http://ceur-ws.org/Vol-1014/paper_41.pdf},
  interhash = {2fe8b1b7e441fe46265ebc9189dc0b10},
  intrahash = {6388d2154d0b5ed9af8c4df54ef4eeed},
  keywords = {optique-project optiqueproject},
  pages = {842--853},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Advances in Accessing Big Data with Expressive Ontologies},
  volume = {1014},
  year = {2013}
}

@inproceedings{ moeller13advances,
  added-at = {2013-10-24T10:55:55.000+0200},
  author = {M̈oller, Ralf and Neuenstadt, Christian and Oz̧{c}ep, ̈Ozgür and Wandelt, Sebastian},
  bdsk-url-1 = {http://dx.doi.org/10.1007/978-3-642-40942-4_11},
  bdsk-url-2 = {http://dx.doi.org/10.1007/978-3-642-40942-4%7B%5C_%7D11},
  biburl = {http://www.bibsonomy.org/bibtex/2a23ea537232050cd45a5cf58385b932e/oezcep},
  booktitle = {KI 2013: Advances in Artificial Intelligence},
  date-added = {2013-10-17 10:49:56 +0200},
  date-modified = {2013-10-17 10:49:56 +0200},
  editor = {Timm, Ingo J. and Thimm, Matthias},
  interhash = {2fe8b1b7e441fe46265ebc9189dc0b10},
  intrahash = {a23ea537232050cd45a5cf58385b932e},
  keywords = {optique-project optiqueproject},
  pages = {118--129},
  publisher = {Springer Berlin Heidelberg},
  series = {{L}ecture {N}otes in {C}omputer {S}cience},
  title = {Advances in Accessing Big Data with Expressive Ontologies},
  url = {http://dx.doi.org/10.1007/978-3-642-40942-4_11},
  volume = {8077},
  year = {2013}
}

@inproceedings{ Hubauer2013,
  abstract = {In large industries usage of advanced technological methods and modern equipment comes with the problem of storing, interpreting and analyzing huge amount of information. Handling information becomes more complicated and important at the same time. So, data quality is one of major challenges considering a rapid growth of information, fragmentation of information systems, incorrect data formatting and other issues. The aim of this paper is to describe industrial data processing and analytics on the real-world use case. The most crucial data quality issues are described, examined and classified in terms of Data Quality Dimensions. Factual industrial information supports and illustrates each encountered data deficiency. In addition, we describe methods for elimination data quality issues and data analysis techniques, which are applied after cleaning data procedure. In addition, an approach to address data quality problems in large-scale industrial datasets is proposed. This techniques and methods comprise several well-known techniques, which come from both worlds of mathematical logic and also statistics, improving data quality procedure and cleaning results.},
  added-at = {2013-09-17T09:27:19.000+0200},
  author = {Hubauer, Thomas M. and Lamparter, Steffen and Roshchin, Mikhail and Solomakhina, Nina and Watson, Stuart},
  biburl = {http://www.bibsonomy.org/bibtex/2fbde32101039ca739d0e7fbd09b3f5d3/thubauer},
  booktitle = {Proceedings of the 2013 Annual Conference of the Prognostics and Health Management Society},
  interhash = {de6fdc2760c5843f4f93ddc0f4fed4ca},
  intrahash = {fbde32101039ca739d0e7fbd09b3f5d3},
  keywords = {analysis data myown optique-project quality},
  title = {Analysis of data quality issues in real-world industrial data},
  year = {2013}
}

In large industries usage of advanced technological methods and modern equipment comes with the problem of storing, interpreting and analyzing huge amount of information. Handling information becomes more complicated and important at the same time. So, data quality is one of major challenges considering a rapid growth of information, fragmentation of information systems, incorrect data formatting and other issues. The aim of this paper is to describe industrial data processing and analytics on the real-world use case. The most crucial data quality issues are described, examined and classified in terms of Data Quality Dimensions. Factual industrial information supports and illustrates each encountered data deficiency. In addition, we describe methods for elimination data quality issues and data analysis techniques, which are applied after cleaning data procedure. In addition, an approach to address data quality problems in large-scale industrial datasets is proposed. This techniques and methods comprise several well-known techniques, which come from both worlds of mathematical logic and also statistics, improving data quality procedure and cleaning results.

@inproceedings{ SkLi-NIK2013,
  abstract = {This paper presents the benefits from publishing the
                  Norwegian Petroleum Directorate’s FactPages, a
                  public and popular, freely available dataset, into
                  semantically annotated and query enabled five star
                  linked open data. We discuss and illustrate the
                  added value of publishing open datasets on the Web
                  using web standards, semantic web technologies and
                  best practices---contrasted to the lesser suited,
                  but more traditional methods—and offer advice to
                  data providers on how to achieve these benefits.},
  added-at = {2014-05-29T12:40:10.000+0200},
  audience = {academic},
  author = {Skj{æ}veland, Martin G. and Lian, Espen H.},
  biburl = {http://www.bibsonomy.org/bibtex/228ab742560e17e4ab7a0cfb1f833e5b9/martige},
  booktitle = {Norsk informatikkonferanse (NIK 2013)},
  interhash = {b2e82696ccf860ee0ed6bc5f79f6020c},
  intrahash = {28ab742560e17e4ab7a0cfb1f833e5b9},
  keywords = {optique-project},
  partneroptique = {UiO},
  publisher = {Tapir},
  title = {{Benefits of Publishing the Norwegian Petroleum
                  Directorate's FactPages as Linked Open Data}},
  wpoptique = {WP10},
  year = {2013},
  yearoptique = {Y2}
}

This paper presents the benefits from publishing the Norwegian Petroleum Directorate’s FactPages, a public and popular, freely available dataset, into semantically annotated and query enabled five star linked open data. We discuss and illustrate the added value of publishing open datasets on the Web using web standards, semantic web technologies and best practices---contrasted to the lesser suited, but more traditional methods—and offer advice to data providers on how to achieve these benefits.

@inproceedings{ conf/ijcai/GiacomoLP13,
  added-at = {2013-09-17T16:12:53.000+0200},
  author = {Giacomo, Giuseppe De and Lespérance, Yves and Patrizi, Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/22855536a14aac6d121ed9d17f4d2ed3b/savo.fabio},
  booktitle = {IJCAI},
  crossref = {conf/ijcai/2013},
  editor = {Rossi, Francesca},
  ee = {http://www.aaai.org/ocs/index.php/IJCAI/IJCAI13/paper/view/6649},
  interhash = {60a22b61f95b2e4445db2e5564138df9},
  intrahash = {2855536a14aac6d121ed9d17f4d2ed3b},
  isbn = {978-1-57735-633-2},
  keywords = {optique-project},
  publisher = {IJCAI/AAAI},
  title = {Bounded Epistemic Situation Calculus Theories.},
  url = {http://dblp.uni-trier.de/db/conf/ijcai/ijcai2013.html#GiacomoLP13},
  year = {2013}
}

@article{ kharlamov2013capturing,
  abstract = {Evolution of Knowledge Bases (KBs) expressed in Description Logics (DLs) has gained a lot of attention lately. Recent studies
on the topic have mostly focused on so-called model-based approaches (MBAs), where the evolution of a KB results in a set of
models. For KBs expressed in tractable DLs, such as those of the DL-Lite family, which we consider here, it has been shown that
one faces inexpressibility of evolution, i.e., the result of evolution of a DL-Lite KB in general cannot be expressed in DL-Lite, in
other words, DL-Lite is not closed under evolution. What is still missing in these studies is a thorough understanding of various
important aspects of the evolution problem for DL-Lite KBs: Which fragments of DL-Lite are closed under evolution? What causes
the inexpressibility? Can one approximate evolution in DL-Lite, and if yes, how? This work provides some understanding of these
issues for an important class of MBAs, which cover the cases of both update and revision. We describe what causes inexpressibility,
and we propose techniques (based on what we call prototypes) that help to approximate evolution under the well-known approach by
Winslett, which is inexpressible in DL-Lite. We also identify a fragment of DL-Lite closed under evolution, and for this fragment we
provide polynomial-time algorithms to compute or approximate evolution results for various MBAs.},
  added-at = {2013-06-18T12:55:19.000+0200},
  author = {Kharlamov, Evgeny and Zheleznyakov, Dmitriy and Calvanese, Diego},
  biburl = {http://www.bibsonomy.org/bibtex/2e4c2c5fe789dcef400a323831c2ac705/dmitriy_zh},
  interhash = {4bcd77602bb52661c5309edcc04973e1},
  intrahash = {e4c2c5fe789dcef400a323831c2ac705},
  journal = {Journal of Computer and System Sciences},
  keywords = {optique-project},
  month = {September},
  number = {6},
  pages = {835-872},
  title = {Capturing Model-Based Ontology Evolution at the Instance Level: The Case of DL-Lite},
  url = {http://www.cs.ox.ac.uk/files/5554/main.pdf},
  volume = {79},
  year = {2013}
}

Evolution of Knowledge Bases (KBs) expressed in Description Logics (DLs) has gained a lot of attention lately. Recent studies on the topic have mostly focused on so-called model-based approaches (MBAs), where the evolution of a KB results in a set of models. For KBs expressed in tractable DLs, such as those of the DL-Lite family, which we consider here, it has been shown that one faces inexpressibility of evolution, i.e., the result of evolution of a DL-Lite KB in general cannot be expressed in DL-Lite, in other words, DL-Lite is not closed under evolution. What is still missing in these studies is a thorough understanding of various important aspects of the evolution problem for DL-Lite KBs: Which fragments of DL-Lite are closed under evolution? What causes the inexpressibility? Can one approximate evolution in DL-Lite, and if yes, how? This work provides some understanding of these issues for an important class of MBAs, which cover the cases of both update and revision. We describe what causes inexpressibility, and we propose techniques (based on what we call prototypes) that help to approximate evolution under the well-known approach by Winslett, which is inexpressible in DL-Lite. We also identify a fragment of DL-Lite closed under evolution, and for this fragment we provide polynomial-time algorithms to compute or approximate evolution results for various MBAs.

@inproceedings{ ZheleznyakovISWC2010privacy,
  added-at = {2013-09-23T17:05:23.000+0200},
  author = {{Cuenca Grau}, Bernardo and Kharlamov, Evgeny and Kostylev, {Egor V.} and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/2daf1ebc0a157a311f873ecd1fdf4f4ff/dmitriy_zh},
  booktitle = {Proc.\ International Semantic Web Conference (ISWC)},
  interhash = {b22e5bc4e4db93768ff2f2e380f6079b},
  intrahash = {daf1ebc0a157a311f873ecd1fdf4f4ff},
  keywords = {optique-project},
  title = {{Controlled Query Evaluation over OWL 2 RL Ontologies}},
  year = {2013}
}

@article{ journals/jair/HaririCMGMF13,
  added-at = {2013-09-17T16:14:11.000+0200},
  author = {Hariri, Babak Bagheri and Calvanese, Diego and Montali, Marco and Giacomo, Giuseppe De and Masellis, Riccardo De and Felli, Paolo},
  biburl = {http://www.bibsonomy.org/bibtex/2d6d80ceb395412f1a6b9c8876ea45a05/savo.fabio},
  ee = {http://dx.doi.org/10.1613/jair.3826},
  interhash = {67015d66daa39b321df3b04eb1ac59f3},
  intrahash = {d6d80ceb395412f1a6b9c8876ea45a05},
  journal = {J. Artif. Intell. Res. (JAIR)},
  keywords = {optique-project},
  pages = {651-686},
  title = {Description Logic Knowledge and Action Bases.},
  url = {http://dblp.uni-trier.de/db/journals/jair/jair46.html#HaririCMGMF13},
  volume = {46},
  year = {2013}
}

@inproceedings{ owled_wp7,
  added-at = {2013-04-26T16:07:03.000+0200},
  author = {Kllapi, Herald and Bilidas, Dimitris and Horrocks, Ian and Ioannidis, Yannis and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Koubarakis, Manolis and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/255d152ffdfd38c70984a20de386d56b3/ernesto.jimenez},
  booktitle = {OWL Experiences and Directions Workshop (OWLED)},
  interhash = {9a5084cf047bcbb8a630aad5619efe22},
  intrahash = {55d152ffdfd38c70984a20de386d56b3},
  keywords = {myown optique-project},
  title = {{Distributed Query Processing on the Cloud: the Optique Point of View (Short Paper)}},
  url = {http://www.cs.ox.ac.uk/files/5516/owled2013_wp7.pdf},
  year = {2013}
}

@inproceedings{ DBLP:conf/semweb/SenguptaHSH13,
  added-at = {2013-10-24T02:47:27.000+0200},
  author = {Sengupta, Kunal and Haase, Peter and Schmidt, Michael and Hitzler, Pascal},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  biburl = {http://www.bibsonomy.org/bibtex/294bf66ebe31dbef69ceaed99553c9f52/pha},
  booktitle = {International Semantic Web Conference (Posters {\&} Demos)},
  crossref = {DBLP:conf/semweb/2013p},
  editor = {Blomqvist, Eva and Groza, Tudor},
  ee = {http://ceur-ws.org/Vol-1035/iswc2013_demo_26.pdf},
  interhash = {d9e4d9fa1a4c519958696a3842eb9676},
  intrahash = {94bf66ebe31dbef69ceaed99553c9f52},
  keywords = {imported optique-project},
  pages = {101-104},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Editing R2RML Mappings Made Easy},
  volume = {1035},
  year = {2013}
}

@inproceedings{ conf/dlog/ConsoleSS13,
  added-at = {2013-09-17T15:33:06.000+0200},
  author = {Console, Marco and Santarelli, Valerio and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/2b5f40a176d472fbee075af88cc8d8462/savo.fabio},
  booktitle = {Description Logics},
  crossref = {conf/dlog/2013},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  ee = {http://ceur-ws.org/Vol-1014/paper_19.pdf},
  interhash = {ade3898bf8ab587a9f2b9d0f3f62c838},
  intrahash = {b5f40a176d472fbee075af88cc8d8462},
  keywords = {myown optique-project},
  pages = {132-143},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Efficient Approximation in DL-Lite of OWL 2 Ontologies.},
  url = {http://dblp.uni-trier.de/db/conf/dlog/dlog2013.html#ConsoleSS13},
  volume = {1014},
  year = {2013}
}

@inproceedings{ DBLP:conf/dlog/Jimenez-RuizMGH13,
  added-at = {2013-10-24T13:17:54.000+0200},
  author = {Jiménez-Ruiz, Ernesto and Meilicke, Christian and Grau, Bernardo Cuenca and Horrocks, Ian},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  biburl = {http://www.bibsonomy.org/bibtex/2e9b307a02e2c4b0d1c807f3ffaca9ca5/ernesto.jimenez},
  booktitle = {26th International Workshop on Description Logics},
  ee = {http://ceur-ws.org/Vol-1014/paper_63.pdf},
  interhash = {6dd62799b4b3cdff491a0b5349703301},
  intrahash = {e9b307a02e2c4b0d1c807f3ffaca9ca5},
  keywords = {myown optique-project optiqueproject},
  pages = {246-257},
  title = {Evaluating Mapping Repair Systems with Large Biomedical Ontologies},
  year = {2013}
}

@inproceedings{ conf/ore/Rodriguez-MuroRHSBC13,
  added-at = {2013-10-09T20:23:15.000+0200},
  author = {Rodriguez-Muro, Mariano and Rezk, Martín and Hardi, Josef and Slusnys, Mindaugas and Bagosi, Timea and Calvanese, Diego},
  biburl = {http://www.bibsonomy.org/bibtex/2b856e642f69e3f0739c4664dd3a89fa1/calvanese},
  booktitle = {OWL Reasoner Evaluation Workshop},
  crossref = {conf/ore/2013},
  editor = {Bail, Samantha and Glimm, Birte and Gonçalves, Rafael S. and Jiménez-Ruiz, Ernesto and Kazakov, Yevgeny and Matentzoglu, Nicolas and Parsia, Bijan},
  interhash = {c5c1a09fb2df11bb9198aab9c1932917},
  intrahash = {b856e642f69e3f0739c4664dd3a89fa1},
  keywords = {dblp myown ontop optique-project sparql},
  pages = {94-100},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Evaluating SPARQL-to-SQL Translation in Ontop.},
  url = {http://ceur-ws.org/Vol-1015/paper_16.pdf},
  volume = {1015},
  year = {2013}
}

@inproceedings{ conf/ijcai/ArenasBCR13,
  added-at = {2013-10-09T20:39:57.000+0200},
  author = {Arenas, Marcelo and Botoeva, Elena and Calvanese, Diego and Ryzhikov, Vladislav},
  biburl = {http://www.bibsonomy.org/bibtex/26489f64a08bc1369aafee8c27cf84f9d/calvanese},
  booktitle = {23rd International Joint Conference on Artificial Intelligence},
  crossref = {conf/ijcai/2013},
  editor = {Rossi, Francesca},
  interhash = {0b3f02dc63a4aa9acb0a81373a8c1430},
  intrahash = {6489f64a08bc1369aafee8c27cf84f9d},
  isbn = {978-1-57735-633-2},
  keywords = {optique-project},
  publisher = {IJCAI/AAAI},
  title = {Exchanging OWL 2 QL Knowledge Bases.},
  url = {http://www.aaai.org/ocs/index.php/IJCAI/IJCAI13/paper/view/6939},
  year = {2013}
}

@inproceedings{ console2013owl,
  added-at = {2013-09-17T15:25:53.000+0200},
  author = {Console, Marco and Santarelli, Valerio and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/282fcb79be9c735234b9a736cd9930f5b/savo.fabio},
  booktitle = {Web Reasoning and Rule Systems},
  editor = {Faber, Wolfgang and Lembo, Domenico},
  interhash = {6c07ac3faf5f97001aefaba486af3df9},
  intrahash = {82fcb79be9c735234b9a736cd9930f5b},
  keywords = {myown optique-project},
  pages = {229--234},
  publisher = {Springer Berlin Heidelberg},
  title = {From OWL to DL- Lite through Efficient Ontology Approximation},
  year = {2013}
}

@inproceedings{ conf/esws/LemboSS13,
  added-at = {2013-09-17T15:37:11.000+0200},
  author = {Lembo, Domenico and Santarelli, Valerio and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/233668e58bcbae51a3cd60c91ca891971/savo.fabio},
  booktitle = {ESWC},
  crossref = {conf/esws/2013},
  editor = {Cimiano, Philipp and Corcho, Óscar and Presutti, Valentina and Hollink, Laura and Rudolph, Sebastian},
  ee = {http://dx.doi.org/10.1007/978-3-642-38288-8_22},
  interhash = {a8d60f61e429cb131f3999b8b43a4d55},
  intrahash = {33668e58bcbae51a3cd60c91ca891971},
  isbn = {978-3-642-38288-8},
  keywords = {myown optique-project},
  pages = {320-334},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Graph-Based Ontology Classification in OWL 2 QL.},
  url = {http://dblp.uni-trier.de/db/conf/esws/eswc2013.html#LemboSS13},
  volume = {7882},
  year = {2013}
}

@inproceedings{ pinkel2013incmap,
  added-at = {2013-09-23T14:04:10.000+0200},
  author = {Pinkel, Christoph and Binnig, Carsten and Kharlamov, Evgeny and Haase, Peter},
  biburl = {http://www.bibsonomy.org/bibtex/2525d8761eae525a05f18fcaa384bd9ee/christophpinkel},
  booktitle = {OM},
  interhash = {eeb096cbc26148bc1cb945e3d90eaf27},
  intrahash = {525d8761eae525a05f18fcaa384bd9ee},
  keywords = {myown obda optique-project pay-as-you-go r2rml},
  title = {IncMap: Pay as you go Matching of Relational Schemata to OWL Ontologies},
  year = {2013}
}

@inproceedings{ ernestojimenezruizbernardocuencagrau2013ontology,
  added-at = {2013-10-24T13:28:57.000+0200},
  author = {{Ernesto Jiménez-Ruiz, Bernardo Cuenca Grau}, Ian Horrocks},
  biburl = {http://www.bibsonomy.org/bibtex/22e0d6edd8ac3e5a21a601c7004e261fc/ernesto.jimenez},
  booktitle = {8th International Workshop on Ontology Matching},
  interhash = {a4e05ab41691806fce4af3253bb7c89f},
  intrahash = {2e0d6edd8ac3e5a21a601c7004e261fc},
  keywords = {myown optique-project optiqueproject},
  title = {Is my ontology matching system similar to yours?},
  year = {2013}
}

@inproceedings{ civili2013mastro,
  added-at = {2013-09-17T16:29:35.000+0200},
  author = {Civili, Cristina and Console, Marco and De Giacomo, Giuseppe and Lembo, Domenico and Lenzerini, Maurizio and Lepore, Lorenzo and Mancini, Riccardo and Poggi, Antonella and Rosati, Riccardo and Ruzzi, Marco and Santarelli, Valerio and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/246a8523aeec0b6c96f37f6fc471a033c/savo.fabio},
  booktitle = {VLDB},
  interhash = {c270989d87db8b85e34e635385b925cc},
  intrahash = {46a8523aeec0b6c96f37f6fc471a033c},
  keywords = {myown optique-project},
  title = {MASTRO STUDIO: Managing Ontology-Based Data Access applications},
  year = {2013}
}

@inproceedings{ DBLP:conf/ore/RomeroGHJ13,
  added-at = {2013-10-24T13:20:47.000+0200},
  author = {Romero, Ana Armas and Grau, Bernardo Cuenca and Horrocks, Ian and Jiménez-Ruiz, Ernesto},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  biburl = {http://www.bibsonomy.org/bibtex/2b34561171e32a3d1221e41efe88b9aab/ernesto.jimenez},
  booktitle = {ORE},
  crossref = {DBLP:conf/ore/2013},
  description = {dblp: conf/ore/RomeroGHJ13},
  editor = {Bail, Samantha and Glimm, Birte and Goņ{c}alves, Rafael S. and Jiménez-Ruiz, Ernesto and Kazakov, Yevgeny and Matentzoglu, Nicolas and Parsia, Bijan},
  ee = {http://ceur-ws.org/Vol-1015/paper_8.pdf},
  interhash = {d490797b0e99c6e17e6cdae655531e4d},
  intrahash = {b34561171e32a3d1221e41efe88b9aab},
  keywords = {myown optique-project optiqueproject},
  pages = {61-67},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {MORe: a Modular OWL Reasoner for Ontology Classification},
  volume = {1015},
  year = {2013}
}

@inproceedings{ civili2013owled,
  added-at = {2013-09-17T16:34:35.000+0200},
  author = {Civili, Cristina and Console, Marco and Lembo, Domenico and Lepore, Lorenzo and Mancini, Riccardo and Poggi, Antonella and Ruzzi, Marco and Santarelli, Valerio and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/293ef321cdbcc00e8d3d9d90770c345e0/savo.fabio},
  booktitle = {OWLED},
  interhash = {3b0372ce8bd1fd128a3257ecec9b6fdf},
  intrahash = {93ef321cdbcc00e8d3d9d90770c345e0},
  keywords = {myown optique-project},
  title = {Mastro Studio: a system for Ontology-Based Data Management},
  year = {2013}
}

@inproceedings{ conf/dlog/BienvenuR13,
  added-at = {2013-09-23T14:56:11.000+0200},
  author = {Bienvenu, Meghyn and Rosati, Riccardo},
  biburl = {http://www.bibsonomy.org/bibtex/2327132acded56e59a2d2abda18937300/savo.fabio},
  booktitle = {Description Logics},
  crossref = {conf/dlog/2013},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  ee = {http://ceur-ws.org/Vol-1014/paper_73.pdf},
  interhash = {e67367e6e08ec83e866309f0db4f09bb},
  intrahash = {327132acded56e59a2d2abda18937300},
  keywords = {optique-project},
  pages = {53-64},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {New Inconsistency-Tolerant Semantics for Robust Ontology-Based Data Access.},
  url = {http://dblp.uni-trier.de/db/conf/dlog/dlog2013.html#BienvenuR13},
  volume = {1014},
  year = {2013}
}

@inproceedings{ DBLP:conf/ore/GoncalvesBJMPGK13,
  added-at = {2013-10-24T13:22:00.000+0200},
  author = {Goņ{c}alves, Rafael S. and Bail, Samantha and Jiménez-Ruiz, Ernesto and Matentzoglu, Nicolas and Parsia, Bijan and Glimm, Birte and Kazakov, Yevgeny},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  biburl = {http://www.bibsonomy.org/bibtex/2c10944d8ca3c919e4c8fe44a2afa52d8/ernesto.jimenez},
  booktitle = {ORE},
  crossref = {DBLP:conf/ore/2013},
  description = {dblp: conf/ore/GoncalvesBJMPGK13},
  editor = {Bail, Samantha and Glimm, Birte and Goņ{c}alves, Rafael S. and Jiménez-Ruiz, Ernesto and Kazakov, Yevgeny and Matentzoglu, Nicolas and Parsia, Bijan},
  ee = {http://ceur-ws.org/Vol-1015/ore2013_report.pdf},
  interhash = {7bf6b2edb22494fd3fdc8ad5d41ab108},
  intrahash = {c10944d8ca3c919e4c8fe44a2afa52d8},
  keywords = {myown optique-project optiqueproject},
  pages = {1-18},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {OWL Reasoner Evaluation (ORE) Workshop 2013 Results: Short Report},
  volume = {1015},
  year = {2013}
}

@inproceedings{ owled_wp6,
  added-at = {2013-04-26T16:06:37.000+0200},
  author = {Calvanese, Diego and Horrocks, Ian and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Meier, Michael and Rodriguez-Muro, Mariano and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/2a35cd55a5d04659d636a4a28fddc2a48/ernesto.jimenez},
  booktitle = {OWL Experiences and Directions Workshop (OWLED)},
  interhash = {60f257f709d9c345b7379656f1a28feb},
  intrahash = {a35cd55a5d04659d636a4a28fddc2a48},
  keywords = {myown optique-project},
  title = {{On Rewriting and Answering Queries in OBDA Systems for Big Data (Short Paper)}},
  url = {http://www.cs.ox.ac.uk/files/5515/owled2013_wp6.pdf},
  year = {2013}
}

@inproceedings{ conf/caise/AntonioliCCCGLLPSV13,
  added-at = {2013-09-17T15:08:13.000+0200},
  author = {Antonioli, Natalia and Castanò, Francesco and Civili, Cristina and Coletta, Spartaco and Grossi, Stefano and Lembo, Domenico and Lenzerini, Maurizio and Poggi, Antonella and Savo, Domenico Fabio and Virardi, Emanuela},
  biburl = {http://www.bibsonomy.org/bibtex/281d06a2bc21d987c427b06d7388313dd/savo.fabio},
  booktitle = {CAiSE Industrial Track},
  crossref = {conf/caise/2013it},
  editor = {Pelechano, Vicente and Regev, Gil and Pigneur, Yves},
  ee = {http://ceur-ws.org/Vol-1017/Paper2CAiSE_IT2013.pdf},
  interhash = {bff474124b411cb2142417f58902358b},
  intrahash = {81d06a2bc21d987c427b06d7388313dd},
  keywords = {myown optique-project},
  pages = {9-16},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Ontology-Based Data Access: The Experience at the Italian Department of Treasury.},
  url = {http://dblp.uni-trier.de/db/conf/caise/caiseit2013.html#AntonioliCCCGLLPSV13},
  volume = {1017},
  year = {2013}
}

@inproceedings{ dipinto2013edbt,
  added-at = {2013-09-17T15:44:11.000+0200},
  author = {Di Pinto, Floriana and Lembo, Domenico and Lenzerini, Maurizio and Mancini, Riccardo and Poggi, Antonella and Rosati, Riccardo and Ruzzi, Marco and Savo, Domenico Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/22074df43e74139a23a285885c2f82bce/savo.fabio},
  booktitle = {EDBT},
  editor = {Guerrini, Giovanna and Paton, Norman W.},
  interhash = {bbf0edbb5552955fa19f44de9f567bbd},
  intrahash = {2074df43e74139a23a285885c2f82bce},
  keywords = {myown optique-project},
  pages = {561-572},
  publisher = {ACM},
  title = {Optimizing query rewriting in ontology-based data access },
  year = {2013}
}

@inproceedings{ Optique_ISWC13,
  added-at = {2013-09-17T17:00:52.000+0200},
  author = {Kharlamov, Evgeny and Giese, Martin and Jiménez-Ruiz, Ernesto and Skj{æ}veland, Martin G. and Soylu, Ahmet and Zheleznyakov, Dmitriy and Bagosi, Timea and Console, Marco and Haase, Peter and Horrocks, Ian and Marciuska, Sarunas and Pinkel, Christoph and Rodriguez-Muro, Mariano and Ruzzi, Marco and Santarelli, Valerio and Savo, Domenico Fabio and Sengupta, Kunal and Schmidt, Michael and Thorstensen, Evgenij and Trame, Johannes and Waaler, Arild},
  biburl = {http://www.bibsonomy.org/bibtex/2fcd6802b20e45ae8c967649c41acc16a/dmitriy_zh},
  booktitle = {International Semantic Web Conference (Posters {\&} Demos)},
  interhash = {af13778a2070c8a907a6ba666074c7cb},
  intrahash = {fcd6802b20e45ae8c967649c41acc16a},
  keywords = {optique-project},
  pages = {65-68},
  title = {Optique 1.0: Semantic Access to Big Data: The Case of Norwegian
               Petroleum Directorate's FactPages},
  year = {2013}
}

@inproceedings{ wodoom_wp4,
  added-at = {2013-04-26T16:08:19.000+0200},
  author = {Haase, Peter and Horrocks, Ian and Hovland, Dag and Hubauer, Thomas and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Klüwer, Johan and Pinkel, Christoph and Rosati, Riccardo and Santarelli, Valerio and Soylu, Ahmet and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/28fa91236070d64bbf3be89ec3496753b/ernesto.jimenez},
  booktitle = {Workshop on Debugging Ontologies and Ontology Mappings (WoDOOM)},
  interhash = {4f82fbbe4a5e3edb09ddbb05103baf7c},
  intrahash = {8fa91236070d64bbf3be89ec3496753b},
  keywords = {myown optique-project optiqueproject},
  title = {{Optique System: Towards Ontology and Mapping Management in OBDA Solutions}},
  url = {http://www.cs.ox.ac.uk/files/5514/wodoom_wp4.pdf},
  year = {2013}
}

@inproceedings{ Optique_ECWS13_1,
  added-at = {2013-09-17T16:56:33.000+0200},
  author = {Calvanese, Diego and Giese, Martin and Haase, Peter and Horrocks, Ian and Hubauer, Thomas and Ioannidis, Yannis E. and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Kllapi, Herald and Klüwer, Johan W. and Koubarakis, Manolis and Lamparter, Steffen and Möller, Ralf and Neuenstadt, Christian and Nordtveit, T. and Öz̧{c}ep, Özgür L. and Rodriguez-Muro, Mariano and Roshchin, Mikhail and Savo, Domenico Fabio and Schmidt, Michael and Soylu, Ahmet and Waaler, Arild and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/28a5742726c5c4b3bc7b851a2cc86f996/dmitriy_zh},
  booktitle = {ESWC (Satellite Events)},
  interhash = {56a1eac8bb4ea0dfbae7bba0b58a104a},
  intrahash = {8a5742726c5c4b3bc7b851a2cc86f996},
  keywords = {myown optique-project},
  pages = {293-295},
  title = {Optique: OBDA Solution for Big Data},
  year = {2013}
}

@inproceedings{ eswc_wp2,
  added-at = {2013-04-26T16:07:57.000+0200},
  author = {Calvanese, D. and Giese, M. and Haase, P. and Horrocks, I. and Hubauer, T. and Ioannidis, Y. and Jiménez-Ruiz, E. and Kharlamov, E. and Kllapi, H. and Klüwer, J. and Koubarakis, M. and Lamparter, S. and M̈oller, R. and Neuenstadt, C. and Nordtveit, T. and ̈Ozcep, ̈O. and driguez Muro, M. Ro\ and Roshchin, M. and Ruzzi, Marco and Savo, F. and Schmidt, M. and Soylu, A. and Waaler, A. and Zheleznyakov, D.},
  biburl = {http://www.bibsonomy.org/bibtex/25548b53661cc296b54591966de365025/ernesto.jimenez},
  booktitle = {Poster track of the Extended Semantic Web Conference},
  interhash = {8d2de483ac7d2b0e889a4ee6fac4f54e},
  intrahash = {5548b53661cc296b54591966de365025},
  keywords = {myown optique-project optiqueproject},
  title = {{Optique: OBDA Solution for Big Data}},
  url = {http://www.cs.ox.ac.uk/files/5513/eswc_poster_wp2.pdf},
  year = {2013}
}

@inproceedings{ Optique_ECWS13_2,
  added-at = {2013-09-17T16:59:12.000+0200},
  author = {Kharlamov, Evgeny and Jiménez-Ruiz, Ernesto and Zheleznyakov, Dmitriy and Bilidas, Dimitris and Giese, Martin and Haase, Peter and Horrocks, Ian and Kllapi, Herald and Koubarakis, Manolis and Öz̧{c}ep, Özgür L. and Rodriguez-Muro, Mariano and Rosati, Riccardo and Schmidt, Michael and Schlatte, Rudolf and Soylu, Ahmet and Waaler, Arild},
  biburl = {http://www.bibsonomy.org/bibtex/2fd1288bf9005328619f6d9f230c5f545/dmitriy_zh},
  booktitle = {ESWC (Satellite Events)},
  interhash = {21393006706776294f314bb865001e8f},
  intrahash = {fd1288bf9005328619f6d9f230c5f545},
  keywords = {optique-project},
  pages = {125-140},
  title = {Optique: Towards OBDA Systems for Industry},
  year = {2013}
}

@inproceedings{ soylu2013optiquevqs,
  added-at = {2013-09-16T16:19:43.000+0200},
  author = {Soylu, Ahmet and Giese, Martin and Jimenez-Ruiz, Ernesto and Kharlamov, Evgeny and Zheleznyakov, Dmitry and Horrocks, Ian},
  biburl = {http://www.bibsonomy.org/bibtex/2b476878df4a4a4891c2377fa8ba3c522/ahmetsoylu},
  booktitle = {International Conference on Management of Emergent Digital EcoSystems (MEDES 2013)},
  interhash = {ee5b6f6adc09099a8fa321214bd43a1e},
  intrahash = {b476878df4a4a4891c2377fa8ba3c522},
  keywords = {myown optique-project},
  publisher = {ACM},
  title = {OptiqueVQS – Towards an Ontology-based Visual Query System for Big Data},
  year = {2013}
}

@inproceedings{ pinkel2013payasyougo,
  added-at = {2013-09-23T14:08:56.000+0200},
  author = {Pinkel, Christoph and Binnig, Carsten and Kharlamov, Evgeny and Haase, Peter},
  biburl = {http://www.bibsonomy.org/bibtex/2f791932dcd98372d1a9eb25645e5022f/christophpinkel},
  booktitle = {ISWC (Posters & Demos)},
  interhash = {ddeb36412908f6164471f5292c89c49f},
  intrahash = {f791932dcd98372d1a9eb25645e5022f},
  keywords = {matching myown obda optique-project pay-as-you-go r2rml},
  title = {Pay-as-you-go Matching of Relational Schemata to OWL Ontologies With IncMap},
  year = {2013}
}

@inproceedings{ SkLiHo-ISWC2013,
  abstract = {This paper motivates, documents and evaluates the
                  process and results of converting the Norwegian
                  Petroleum Directorate's FactPages, a well-known and
                  diverse set of tabular data, but with little and
                  incomplete schema information, stepwise into other
                  representations where in each step more semantics is
                  added to the dataset. The different representations
                  we consider are a regular relational database, a
                  linked open data dataset, and an ontology. For each
                  conversion step we explain and discuss necessary
                  design choices which are due to the specific shape
                  of the dataset, but also those due to the
                  characteristics and idiosyncrasies of the
                  representation formats. We additionally evaluate the
                  output, performance and cost of querying the
                  different formats using questions provided by users
                  of the FactPages.},
  added-at = {2014-05-29T12:40:10.000+0200},
  audience = {academic},
  author = {Skj{æ}veland, Martin G. and Lian, Espen H. and Horrocks, Ian},
  biburl = {http://www.bibsonomy.org/bibtex/29d002eaea90a4c8b56c2e628b6e838b3/martige},
  booktitle = {The Semantic Web -- ISWC 2013},
  editor = {Alani, Harith and Kagal, Lalana and Fokoue, Achille and Groth, Paul and Biemann, Chris and Parreira, JosianeXavier and Aroyo, Lora and Noy, Natasha and Welty, Chris and Janowicz, Krzysztof},
  interhash = {96e5e9f2a9e35a9816a300c14d309e36},
  intrahash = {9d002eaea90a4c8b56c2e628b6e838b3},
  keywords = {optique-project},
  pages = {162-177},
  partneroptique = {UiO},
  publisher = {Springer Berlin Heidelberg},
  series = {LNCS},
  title = {{Publishing the Norwegian Petroleum Directorate's
                  FactPages as Semantic Web Data}},
  volume = {8219},
  wpoptique = {WP10},
  year = {2013},
  yearoptique = {Y1}
}

This paper motivates, documents and evaluates the process and results of converting the Norwegian Petroleum Directorate's FactPages, a well-known and diverse set of tabular data, but with little and incomplete schema information, stepwise into other representations where in each step more semantics is added to the dataset. The different representations we consider are a regular relational database, a linked open data dataset, and an ontology. For each conversion step we explain and discuss necessary design choices which are due to the specific shape of the dataset, but also those due to the characteristics and idiosyncrasies of the representation formats. We additionally evaluate the output, performance and cost of querying the different formats using questions provided by users of the FactPages.

@article{ calvanese-etal-JAIR-2013-explanation,
  added-at = {2013-11-24T22:35:57.000+0100},
  author = {Calvanese, Diego and Ortiz, Magdalena and Simkus, Mantas and Stefanoni, Giorgio},
  biburl = {http://www.bibsonomy.org/bibtex/2ef142e6244d30ed2b34d656e7b5c8ee3/calvanese},
  interhash = {974ee10f296c76dfb27dc826fdec9e11},
  intrahash = {ef142e6244d30ed2b34d656e7b5c8ee3},
  journal = {Journal of Artificial Intelligence Research},
  keywords = {myown optique-project},
  pages = {635--669},
  title = {Reasoning about Explanations for Negative Query Answers in DL-Lite},
  volume = {48},
  year = {2013}
}

@incollection{ book-big-data-2013,
  abstract = {This chapter proposes steps towards the solution to the data access problem that end-users typically face when dealing with Big Data: (i) They need to pose ad hoc queries to a collection of data sources, possibly including streaming sources; (ii) They are unable to query those sources on their own, but are dependent on assistance from IT experts; (iii) The turnaround time for information requests is in the range of days, possibly weeks, due to the involvement of the IT personnel; (iv) The volume, complexity, variety and velocity of the underlying data sources put very high demands on the scalability of the solution. We propose to approach this problem using ontology-based data access (OBDA), the idea being to capture end-user conceptualizations in an ontology and use declarative mappings to connect the ontology to the underlying data sources. End user queries posed are posed in terms of concepts of the ontology and are then rewritten to queries against the sources.},
  added-at = {2014-05-30T16:01:04.000+0200},
  audience = {industry},
  author = {Giese, Martin and Calvanese, Diego and Haase, Peter and Horrocks, Ian and Ioannidis, Yannis and Kllapi, Heralk and Koubarakis, Manolis and Lenzerini, Maurizio and Möller, Ralf and Rodriguez-Muro, Mariano and Özcep, Özgür and Rosati, Riccardo and Schlatte, Rudolf and Schmidt, Michael and Soylu, Ahmet and Waaler, Arild},
  biburl = {http://www.bibsonomy.org/bibtex/21f76b2d96eb19ce1207f2eace2b54912/martingi},
  booktitle = {Big Data Computing},
  editor = {Akerkar, Rajendra},
  interhash = {59f2232229c91cebbedfd930e811c67a},
  intrahash = {1f76b2d96eb19ce1207f2eace2b54912},
  keywords = {optique-project},
  partneroptique = {UiO},
  publisher = {CRC Press},
  title = {Scalable End-User Access to Big Data},
  wpoptique = {WP10},
  year = {2013},
  yearoptique = {Y2}
}

This chapter proposes steps towards the solution to the data access problem that end-users typically face when dealing with Big Data: (i) They need to pose ad hoc queries to a collection of data sources, possibly including streaming sources; (ii) They are unable to query those sources on their own, but are dependent on assistance from IT experts; (iii) The turnaround time for information requests is in the range of days, possibly weeks, due to the involvement of the IT personnel; (iv) The volume, complexity, variety and velocity of the underlying data sources put very high demands on the scalability of the solution. We propose to approach this problem using ontology-based data access (OBDA), the idea being to capture end-user conceptualizations in an ontology and use declarative mappings to connect the ontology to the underlying data sources. End user queries posed are posed in terms of concepts of the ontology and are then rewritten to queries against the sources.

@inproceedings{ bereta2013sextant,
  added-at = {2013-09-24T12:22:10.000+0200},
  author = {Bereta, Konstantina and Nikolaou, Charalampos and Karpathiotakis, Manos and Kyzirakos, Kostis and Koubarakis, Manolis},
  biburl = {http://www.bibsonomy.org/bibtex/2f439c317a6ebebc4ddeeb0dcc6b10eea/kbereta},
  booktitle = {International Semantic Web Conference (Posters & Demos)},
  editor = {Blomqvist, Eva and Groza, Tudor},
  interhash = {c9cb397798c9c75010a2295401d23c9f},
  intrahash = {f439c317a6ebebc4ddeeb0dcc6b10eea},
  keywords = {optique-project},
  title = {SexTant: Visualizing Time-Evolving Linked Geospatial Data},
  year = {2013}
}

@inproceedings{ DBLP:conf/dlog/OzcepM13OhneCross,
  added-at = {2013-10-24T11:04:52.000+0200},
  author = {Öz̧{c}ep, Özgür L. and Möller, Ralf},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  biburl = {http://www.bibsonomy.org/bibtex/2713252cf68e9527506d269993d3cce72/oezcep},
  booktitle = {Description Logics},
  date-added = {2013-10-24 11:00:27 +0200},
  date-modified = {2013-10-24 11:04:14 +0200},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  ee = {http://ceur-ws.org/Vol-1014/paper_38.pdf},
  interhash = {7ec090469aaf2c890cd6137cd7b4a5ae},
  intrahash = {713252cf68e9527506d269993d3cce72},
  keywords = {optique-project optiqueproject},
  pages = {816--828},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Spatial Semantics for Concepts},
  volume = {1014},
  year = {2013}
}

@inproceedings{ conf/dlog/ConsoleLMRR13,
  abstract = {Several recent techniques and tools for Ontology-based Data Access (OBDA) make use of the so-called extensional constraints (a.k.a. ABox dependencies). 
  So far, extensional constraints have been mainly considered in a setting where data are represented in an ABox, instead of external 
  data sources connected to the ontology through declarative mappings. Moreover, the issue of how to generate extensional constraints 
  in practice has not been addressed yet. In this paper we first provide a formal account of the notion of extensional constraints 
  in a full-fledged OBDA setting, where an ontology is connected to the data sources of the information system by means of mappings, 
  and then present an approach to the automatic generation of extensional constraints in such a setting. The technique we propose is 
  based on the use of a first-order theorem prover that checks validity of relevant formulas built over the mapping views. 
  The experiments we have carried out in real-world OBDA projects show the effectiveness of our approach in discovering large 
  collections of extensional constraints entailed by the OBDA specification.},
  added-at = {2014-06-02T11:48:49.000+0200},
  audience = {academic},
  author = {Console, Marco and Lenzerini, Maurizio and Mancini, Riccardo and Rosati, Riccardo and Ruzzi, Marco},
  biburl = {http://www.bibsonomy.org/bibtex/220f8b69cf62bb505f4e0112785918219/savo.fabio},
  booktitle = {Description Logics},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  ee = {http://ceur-ws.org/Vol-1014/paper_29.pdf},
  interhash = {33389042cfdf6bd0688360899067c634},
  intrahash = {20f8b69cf62bb505f4e0112785918219},
  keywords = {optique-project},
  pages = {628-639},
  partneroptique = {UNIROMA1},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Synthesizing Extensional Constraints in Ontology-Based Data Access.},
  url = {http://dblp.uni-trier.de/db/conf/dlog/dlog2013.html#ConsoleLMRR13},
  volume = {1014},
  wpoptique = {WP4},
  year = {2013},
  yearoptique = {Y1}
}

Several recent techniques and tools for Ontology-based Data Access (OBDA) make use of the so-called extensional constraints (a.k.a. ABox dependencies). So far, extensional constraints have been mainly considered in a setting where data are represented in an ABox, instead of external data sources connected to the ontology through declarative mappings. Moreover, the issue of how to generate extensional constraints in practice has not been addressed yet. In this paper we first provide a formal account of the notion of extensional constraints in a full-fledged OBDA setting, where an ontology is connected to the data sources of the information system by means of mappings, and then present an approach to the automatic generation of extensional constraints in such a setting. The technique we propose is based on the use of a first-order theorem prover that checks validity of relevant formulas built over the mapping views. The experiments we have carried out in real-world OBDA projects show the effectiveness of our approach in discovering large collections of extensional constraints entailed by the OBDA specification.

@inproceedings{ franconi2013iswc,
  added-at = {2013-09-23T15:00:23.000+0200},
  author = {Franconi, Enrico and Gutierrez, Claudio and Mosca, Alessandro and Pirrò, Giuseppe and Rosati, Riccardo},
  biburl = {http://www.bibsonomy.org/bibtex/2c34fff0b8db4b465a8e79143ac9319af/savo.fabio},
  interhash = {d7ff177e44c3f1db567bc25f384c856b},
  intrahash = {c34fff0b8db4b465a8e79143ac9319af},
  keywords = {optique-project},
  title = {The Logic of Extensional RDFS},
  year = {2013}
}

@inproceedings{ owled_wp2,
  added-at = {2013-04-26T15:56:18.000+0200},
  author = {Calvanese, D. and Giese, M. and Haase, P. and Horrocks, I. and Hubauer, T. and Ioannidis, Y. and Jiménez-Ruiz, E. and Kharlamov, E. and Kllapi, H. and Klüwer, J. and Koubarakis, M. and Lamparter, S. and M̈oller, R. and Neuenstadt, C. and Nordtveit, T. and ̈Ozcep, ̈O. and driguez Muro, M. Ro\ and Roshchin, M. and Ruzzi, Marco and Savo, F. and Schmidt, M. and Soylu, A. and Waaler, A. and Zheleznyakov, D.},
  biburl = {http://www.bibsonomy.org/bibtex/2c52a02c7b0ab0197039fcddd9c938490/ernesto.jimenez},
  booktitle = {OWL Experiences and Directions Workshop (OWLED)},
  interhash = {c2564327af8d77cae5d2fcbaaa47179c},
  intrahash = {c52a02c7b0ab0197039fcddd9c938490},
  keywords = {myown optique-project},
  title = {{The Optique Project: Towards OBDA Systems for Industry (Short Paper)}},
  url = {http://www.cs.ox.ac.uk/files/5512/owled2013_wp2.pdf},
  year = {2013}
}

@inproceedings{ conf/owled/CalvaneseGHHHIJKKKLMNORRRSSSWZ13,
  added-at = {2013-12-08T00:00:00.000+0100},
  author = {Calvanese, Diego and Giese, Martin and Haase, Peter and Horrocks, Ian and Hubauer, Thomas and Ioannidis, Yannis E. and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Kllapi, Herald and Koubarakis, Manolis and Lamparter, Steffen and Möller, Ralf and Neuenstadt, Christian and Oezcep, Oezguer and Rodriguez-Muro, Mariano and Roshchin, Mikhail and Ruzzi, Marco and Savo, Domenico Fabio and Schmidt, Michael and Soylu, Ahmet and Waaler, Arild and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/2f5126ecddb5c2dc83475beebcdb57b1d/dblp},
  booktitle = {OWLED},
  crossref = {conf/owled/2013},
  editor = {Rodriguez-Muro, Mariano and Jupp, Simon and Srinivas, Kavitha},
  ee = {http://ceur-ws.org/Vol-1080/owled2013_20.pdf},
  interhash = {6af9ee329c178bedced031f1bd8e8059},
  intrahash = {f5126ecddb5c2dc83475beebcdb57b1d},
  keywords = {dblp},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {The Optique Project: Towards OBDA Systems for Industry (Short Paper).},
  url = {http://dblp.uni-trier.de/db/conf/owled/owled2013.html#CalvaneseGHHHIJKKKLMNORRRSSSWZ13},
  volume = {1080},
  year = {2013}
}

@inproceedings{ owled_wp3,
  added-at = {2013-04-26T15:58:54.000+0200},
  author = {Cuenca Grau, Bernardo and Giese, Martin and Horrocks, Ian and Hubauer, Thomas and Jiménez-Ruiz, Ernesto and Kharlamov, Evgeny and Schmidt, Michael and Soylu, Ahmet and Zheleznyakov, Dmitriy},
  biburl = {http://www.bibsonomy.org/bibtex/295064d9fec4a65bd253cbb15592d85ab/ernesto.jimenez},
  booktitle = {OWL Experiences and Directions Workshop (OWLED)},
  interhash = {7462ba79fd00659297e6e7ac30fc03d6},
  intrahash = {95064d9fec4a65bd253cbb15592d85ab},
  keywords = {myown optique-project},
  title = {{Towards Query Formulation and Query-Driven Ontology Extensions in OBDA}},
  url = {http://www.cs.ox.ac.uk/files/5511/owled2013_wp3.pdf},
  year = {2013}
}

@inproceedings{ BienvenuOSX-dl13,
  added-at = {2013-09-16T16:03:19.000+0200},
  author = {Bienvenu, Meghyn and Ortiz, Magdalena and Simkus, Mantas and Xiao, Guohui},
  biburl = {http://www.bibsonomy.org/bibtex/2fa2e1973d362ebc08f35184ac088bf11/ghxiao},
  booktitle = {Informal Proceedings of the 26th International Workshop on Description Logics, Ulm, Germany, July 23 - 26, 2013},
  editor = {Eiter, Thomas and Glimm, Birte and Kazakov, Yevgeny and Krötzsch, Markus},
  interhash = {16628740155947df4ba3ec1546f915c2},
  intrahash = {fa2e1973d362ebc08f35184ac088bf11},
  keywords = {optique-project},
  pages = {41-52},
  publisher = {CEUR-WS.org},
  series = {CEUR Workshop Proceedings},
  title = {Tractability Guarantees for DL-Lite Query Answering},
  volume = {1014},
  year = {2013}
}

@inproceedings{ conf/ijcai/BienvenuR13,
  added-at = {2013-09-23T14:55:17.000+0200},
  author = {Bienvenu, Meghyn and Rosati, Riccardo},
  biburl = {http://www.bibsonomy.org/bibtex/2486a7e215d843130da556f51412c705d/savo.fabio},
  booktitle = {IJCAI},
  crossref = {conf/ijcai/2013},
  editor = {Rossi, Francesca},
  ee = {http://www.aaai.org/ocs/index.php/IJCAI/IJCAI13/paper/view/6904},
  interhash = {7576ed5df0f10357892294ee9738afc2},
  intrahash = {486a7e215d843130da556f51412c705d},
  isbn = {978-1-57735-633-2},
  keywords = {optique-project},
  publisher = {IJCAI/AAAI},
  title = {Tractable Approximations of Consistent Query Answering for Robust Ontology-based Data Access.},
  url = {http://dblp.uni-trier.de/db/conf/ijcai/ijcai2013.html#BienvenuR13},
  year = {2013}
}

@inproceedings{ DBLP:conf/ijcai/BienvenuOSX13,
  added-at = {2013-09-16T16:00:34.000+0200},
  author = {Bienvenu, Meghyn and Ortiz, Magdalena and Simkus, Mantas and Xiao, Guohui},
  biburl = {http://www.bibsonomy.org/bibtex/2f2183cceb3fa9f53bd67f5b7820e785e/ghxiao},
  booktitle = {IJCAI 2013, Proceedings of the 23rd International Joint Conference on Artificial Intelligence, Beijing, China, August 3-9, 2013},
  editor = {Rossi, Francesca},
  interhash = {ec03a805a1a1a619eba6894ccbef6675},
  intrahash = {f2183cceb3fa9f53bd67f5b7820e785e},
  keywords = {optique-project},
  publisher = {IJCAI/AAAI},
  title = {Tractable Queries for Lightweight Description Logics},
  year = {2013}
}

@inproceedings{ calvanese2013verification,
  added-at = {2013-09-17T16:19:27.000+0200},
  author = {Calvanese, Diego and De Giacomo, Giuseppe and Montali, Marco and Patrizi, Fabio},
  biburl = {http://www.bibsonomy.org/bibtex/2d3e3d8dcc9c8ba60a181500aac1d620e/savo.fabio},
  booktitle = {RR},
  editor = {Faber, Wolfgang and Lembo, Domenico},
  interhash = {ab5cba6b0949af0630359ad04cc1515c},
  intrahash = {d3e3d8dcc9c8ba60a181500aac1d620e},
  keywords = {optique-project},
  pages = {50-64},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Verification and Synthesis in Description Logic Based Dynamic Systems},
  volume = {7994},
  year = {2013}
}

@inproceedings{ peterhaase2012iswc2012,
  added-at = {2012-12-07T10:55:25.000+0100},
  author = {Haase, Peter and Schmidt, Michael},
  biburl = {http://www.bibsonomy.org/bibtex/2120ce02cf5fb9b3c9a1dda8bb55fc21b/pha},
  booktitle = {Proceedings of the ISWC 2012 Industry Track},
  interhash = {4008f843a2dffc16f1741e32ecb7f851},
  intrahash = {120ce02cf5fb9b3c9a1dda8bb55fc21b},
  keywords = {myown optique-project semantics},
  month = {November},
  title = {On Demand Access to Big Data through Semantic Technologies},
  url = {http://data.semanticweb.org/conference/iswc/2012/paper/industry-04},
  year = {2012}
}

@article{ journals/pvldb/CalvaneseGLV12,
  added-at = {2013-09-17T16:21:44.000+0200},
  author = {Calvanese, Diego and Giacomo, Giuseppe De and Lenzerini, Maurizio and Vardi, Moshe Y.},
  biburl = {http://www.bibsonomy.org/bibtex/23b78ae3e9e447ac8e9f27d215fb1333e/savo.fabio},
  ee = {http://www.vldb.org/pvldb/vol6/p61-calvanese.pdf},
  interhash = {68bf115699be6cfcd2059cb5fc3dd13c},
  intrahash = {3b78ae3e9e447ac8e9f27d215fb1333e},
  journal = {PVLDB},
  keywords = {optique-project},
  number = {2},
  pages = {61-72},
  title = {Query Processing under GLAV Mappings for Relational and Graph Databases.},
  url = {http://dblp.uni-trier.de/db/journals/pvldb/pvldb6.html#CalvaneseGLV12},
  volume = {6},
  year = {2012}
}

@inproceedings{ conf/semweb/OzcepM12,
  added-at = {2012-12-21T11:09:34.000+0100},
  author = {Özçep, Özgür Lütfü and Möller, Ralf},
  biburl = {http://www.bibsonomy.org/bibtex/2c1892873d575b2c3284ea436ffc64c61/oezcep},
  booktitle = {International Semantic Web Conference (1)},
  crossref = {conf/semweb/2012-1},
  editor = {Cudré-Mauroux, Philippe and Heflin, Jeff and Sirin, Evren and Tudorache, Tania and Euzenat, Jérôme and Hauswirth, Manfred and Parreira, Josiane Xavier and Hendler, Jim and Schreiber, Guus and Bernstein, Abraham and Blomqvist, Eva},
  ee = {http://dx.doi.org/10.1007/978-3-642-35176-1_41},
  interhash = {852b04faf304e0599da923e1baefc10e},
  intrahash = {c1892873d575b2c3284ea436ffc64c61},
  isbn = {978-3-642-35175-4},
  keywords = {myown optique-project},
  pages = {658--673},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  title = {Scalable Geo-thematic Query Answering},
  url = {http://dblp.uni-trier.de/db/conf/semweb/iswc2012-1.html#OzcepM12},
  volume = {7649},
  year = {2012}
}