%0 Book Section %B On the Move to Meaningful Internet Systems: OTM 2012 %D 2012 %T Alignment-based querying of linked open data %A Joshi, Amit Krishna %A Prateek Jain %A Pascal Hitzler %A Peter Z. Yeh %A Kunal Verma %A Amit Sheth %A Mariana Damova %B On the Move to Meaningful Internet Systems: OTM 2012 %I Springer %P 807–824 %G eng %0 Conference Paper %B 23rd ACM Conference on Hypertext and Social Media, HT '12 %D 2012 %T Moving beyond SameAs with PLATO: Partonomy detection for Linked Data %A Prateek Jain %A Pascal Hitzler %A Kunal Verma %A Peter Z. Yeh %A Amit Sheth %E Ethan V. Munson %E Markus Strohmaier %K Linked Open Data Cloud %K Mereology %K Part of Relation %X
The Linked Open Data (LOD) Cloud has gained significant traction over the past few years. With over 275 interlinked datasets across diverse domains such as life science, geography, politics, and more, the LOD Cloud has the potential to support a variety of applications ranging from open domain question answering to drug discovery.
Despite its significant size (approx. 30 billion triples), the data is relatively sparely interlinked (approx. 400 million links). A semantically richer LOD Cloud is needed to fully realize its potential. Data in the LOD Cloud are currently interlinked mainly via the owl:sameAs property, which is inadequate for many applications. Additional properties capturing relations based on causality or partonomy are needed to enable the answering of complex questions and to support applications.
In this paper, we present a solution to enrich the LOD Cloud by automatically detecting partonomic relationships, which are well-established, fundamental properties grounded in linguistics and philosophy. We empirically evaluate our solution across several domains, and show that our approach performs well on detecting partonomic properties between LOD Cloud data.
%B 23rd ACM Conference on Hypertext and Social Media, HT '12 %I ACM %C Milwaukee, WI, USA %P 33–42 %G eng %U http://doi.acm.org/10.1145/2309996.2310004 %R 10.1145/2309996.2310004 %0 Conference Paper %B The Semantic Web: Research and Applications - 8th Extended Semantic Web Conference, ESWC 2011 %D 2011 %T Contextual Ontology Alignment of LOD with an Upper Ontology: A Case Study with Proton %A Prateek Jain %A Peter Z. Yeh %A Kunal Verma %A Reymonrod G. Vasquez %A Mariana Damova %A Pascal Hitzler %A Amit Sheth %E Grigoris Antoniou %E Marko Grobelnik %E Elena Paslaru Bontas Simperl %E Bijan Parsia %E Dimitris Plexousakis %E Pieter De Leenheer %E Jeff Z. Pan %XThe Linked Open Data (LOD) is a major milestone towards realizing the Semantic Web vision, and can enable applications such as robust Question Answering (QA) systems that can answer queries requiring multiple, disparate information sources. However, realizing these applications requires relationships at both the schema and instance level, but currently the LOD only provides relationships for the latter. To address this limitation, we present a solution for automatically finding schema-level links between two LOD ontologies – in the sense of ontology alignment. Our solution, called BLOOMS+, extends our previous solution (i.e. BLOOMS) in two significant ways. BLOOMS+ 1) uses a more sophisticated metric to determine which classes between two ontologies to align, and 2) considers contextual information to further support (or reject) an alignment. We present a comprehensive evaluation of our solution using schema-level mappings from LOD ontologies to Proton (an upper level ontology) – created manually by human experts for a real world application called FactForge. We show that our solution performed well on this task. We also show that our solution significantly outperformed existing ontology alignment solutions (including our previously published work on BLOOMS) on this same task.
%B The Semantic Web: Research and Applications - 8th Extended Semantic Web Conference, ESWC 2011 %I Springer %C Heraklion, Crete, Greece %V 6643 %P 80–92 %G eng %U http://dx.doi.org/10.1007/978-3-642-21034-1_6 %R 10.1007/978-3-642-21034-1_6 %0 Conference Paper %B Linked Data Meets Artificial Intelligence, Papers from the 2010 AAAI Spring Symposium %D 2010 %T Linked Data Is Merely More Data %A Prateek Jain %A Pascal Hitzler %A Peter Z. Yeh %A Kunal Verma %A Amit Sheth %E Dan Brickley %E Vinay K. Chaudhri %E Harry Halpin %E Deborah McGuinness %XIn this position paper, we argue that the Linked Open Data (LoD) Cloud, in its current form, is only of limited value for furthering the Semantic Web vision. Being merely a weakly linked “triple collection,” it will only be of very limited bene- fit for the AI or Semantic Web communities. We describe the corresponding problems with the LoD Cloud and give directions for research to remedy the situation.
%B Linked Data Meets Artificial Intelligence, Papers from the 2010 AAAI Spring Symposium %I AAAI %C Stanford, California, USA %G eng %U http://www.aaai.org/ocs/index.php/SSS/SSS10/paper/view/1130 %0 Conference Paper %B The Semantic Web - ISWC 2010 - 9th International Semantic Web Conference, ISWC 2010 %D 2010 %T Ontology Alignment for Linked Open Data %A Prateek Jain %A Pascal Hitzler %A Amit Sheth %A Kunal Verma %A Peter Z. Yeh %E Peter F. Patel-Schneider %E Yue Pan %E Pascal Hitzler %E Peter Mika %E Lei Zhang %E Jeff Z. Pan %E Ian Horrocks %E Birte Glimm %XThe Web of Data currently coming into existence through the Linked Open Data (LOD) effort is a major milestone in realizing the Semantic Web vision. However, the development of applications based on LOD faces difficulties due to the fact that the different LOD datasets are rather loosely connected pieces of information. In particular, links between LOD datasets are almost exclusively on the level of instances, and schema-level information is being ignored. In this paper, we therefore present a system for finding schema-level links between LOD datasets in the sense of ontology alignment. Our system, called BLOOMS, is based on the idea of bootstrapping information already present on the LOD cloud. We also present a comprehensive evaluation which shows that BLOOMS outperforms state-of-the-art ontology alignment systems on LOD datasets. At the same time, BLOOMS is also competitive compared with these other systems on the Ontology Evaluation Alignment Initiative Benchmark datasets.
%B The Semantic Web - ISWC 2010 - 9th International Semantic Web Conference, ISWC 2010 %I Springer %C Shanghai, China %V 6496 %P 402–417 %G eng %U http://dx.doi.org/10.1007/978-3-642-17746-0_26 %R 10.1007/978-3-642-17746-0_26