Semantic Similarity Measurement for Role-Governed Geospatial Categories, funded by the German Research Foundation (DFG).
SimCat I/II
- Period
- Status
- Finished
Description
The overall goal of this research is the development of a generic formal framework for similarity measurement in information retrieval from semantically annotated data. The foundations for this framework have been successfully laid out with the development of the SIM-DL theory in phase I. Building on research in psychology which has shown the strong context-dependence of human similarity judgments, we want to develop SIM-DL into a framework for the computation of cognitively plausible similarity rankings with respect to a contextual situation. We thus propose a second phase that focuses on an extension for context awareness. This requires the development of a formal theory of context for similarity measurement, which is to be integrated with the existing SIM-DL specification and implementation. The proposed phase II focuses on the qualitative and quantitative variations context changes cause. The qualitative aspect focuses on what changes when the context changes. We propose an approach based on context rules to adapt the knowledge base to the current situation. The quantification of the variations in similarity rankings caused by context changes requires a measurement method that reflects human assessments of these variations. Moreover, we want to investigate the implications of context dependencies in the concept definition process and how they eventually affect similarity among these concepts. Persons
Publications
- Keßler, Carsten. . “Context-aware Semantics-based Information Retrieval.” Dissertation thesis, Westfälische Wilhelms-Universität Münster.
- Janowicz, Krzysztof, Schade, Sven, Bröring, Arne, Keßler, Carsten, Maué, Patrick, and Stasch, Christoph. . “Semantic Enablement for Spatial Data Infrastructures.” Transactions in GIS, № 14 (2): 111–129.
- Keßler, Carsten Janowicz Krzysztof. . “Linking Sensor Data – Why, to What, and How?” in Proceedings of the 3rd International workshop on Semantic Sensor Networks 2010 (SSN10), Vol. 668 of CEUR-WS, edited by Kerry Taylor, Arun Ayyagari and Roure David De.
- Keßler, Carsten Maué Patrick, and Heuer Jan Torben, Bartoschek Thomas. . “Bottom-Up Gazetteers: Learning from the Implicit Semantics of Geotags.” in Third International Conference on GeoSpatial Semantics (GeoS 2009), Vol. 5892 of Lecture Notes in Computer Science, edited by Krzysztof Janowicz, Martin Raubal and Sergei Levashkin. Heidelberg: Springer.
- Keßler, Carsten, Raubal, Martin, and Wosniok, Christoph. . “Semantic rules for context-aware geographical information retrieval.” in Smart Sensing and Context, 4th European Conference, EuroSSC 2009, Guildford, UK, September 2009, Vol. 5741 of Lecture Notes in Computer Science, edited by Payam Barnaghi, Klaus Moessner, Mirko Presser and Stefan Meissner. Heidelberg: Springer.
- Janowicz, Krzysztof Keßler Carsten. . “The Role of Ontology in Improving Gazetteer Interaction.” International Journal of Geographical Information Science, № 22 (10): 1129–1157.
- Keßler, Carsten, Raubal, Martin, and Janowicz, Krzysztof. . “The Effect of Context on Semantic Similarity Measurement.” in On The Move – OTM 2007 Workshops, Part II, Vol. 4806 of Lecture Notes in Computer Science, edited by R Meersman, Z Tari, P Herrero and al. et. Heidelberg: Springer.