tailieunhanh - Báo cáo khoa học: "Generating and Visualizing a Soccer Knowledge Base"

This demo abstract describes the SmartWeb Ontology-based Annotation system (SOBA). A key feature of SOBA is that all information is extracted and stored with respect to the SmartWeb Integrated Ontology (SWIntO). In this way, other components of the systems, which use the same ontology, can access this information in a straightforward way. We will show how information extracted by SOBA is visualized within its original context, thus enhancing the browsing experience of the end user. | Generating and Visualizing a Soccer Knowledge Base Paul Buitelaar Thomas Eigner Greg Gul-rajani Alexander Schutz Melanie Siegel Nicolas Weber Language Technology Lab DFKI GmbH Saarbrucken Germany paulb siegel @ Philipp Cimiano Gunter Ladwig Matthias Mantel Honggang Zhu Institute AIFB University of Karlsruhe Karlsruhe Germany cimiano@ Abstract This demo abstract describes the SmartWeb Ontology-based Annotation system SOBA . A key feature of SOBA is that all information is extracted and stored with respect to the SmartWeb Integrated Ontology SWIntO . In this way other components of the systems which use the same ontology can access this information in a straightforward way. We will show how information extracted by SOBA is visualized within its original context thus enhancing the browsing experience of the end user. 1 Introduction SmartWeb1 is a multi-modal dialog system which derives answers from unstructured resources such as the Web from automatically acquired knowledge bases and from web services. In this paper we describe the current status of the SmartWeb Ontology-Based Annotation SOBA system. SOBA automatically populates a knowledge base by information extraction from soccer match reports as available on the web. The extracted information is defined with respect to SWIntO the underlying SmartWeb Integrated Ontology Oberle et al. in preparation in order to be smoothly integrated into the system. The ability to extract information and describe it ontologically is a basic requirement for more complex processing tasks such as reasoning and discourse analysis for related work on ontologybased information extraction see . Maedche et al. 2002 Lopez and Motta 2004 Muller et al. 2004 Nirenburg and Raskin 2004 . 2 System Overview The SOBA system consists of a web crawler linguistic annotation components and a component for the transformation of linguistic annotations into an ontology-based representation. The web crawler acts as a monitor