Efficient XML and Entity Retrieval with PF/Tijah: CWI and University of Twente at INEX'08
نویسندگان
چکیده
PF/Tijah is a research prototype created by the University of Twente and CWI Amsterdam with the goal to create a flexible environment for setting up search systems. By integrating the PathFinder (PF) XQuery system [1] with the Tijah XML information retrieval system [2] it combines database and information retrieval technology. The PF/Tijah system is part of the open source release of MonetDB/XQuery developed in cooperation with CWI Amsterdam and the University of Tübingen. PF/Tijah is first of all a system for structured retrieval on XML data. Compared to other open source retrieval systems it comes with a number or unique features [3]:
منابع مشابه
Structured Document Retrieval, Multimedia Retrieval, and Entity Ranking Using PF/Tijah
CWI and University of Twente used PF/Tijah, a flexible XML retrieval system, to evaluate structured document retrieval, multimedia retrieval, and entity ranking tasks in the context of INEX 2007. For the retrieval of textual and multimedia elements in the Wikipedia data, we investigated various length priors and found that biasing towards longer elements than the ones retrieved by our language ...
متن کاملOptimizing XML Information Retrieval Query Execution at the Physical Level
XML is emerging as a standard format for information interchange and storage of structured information. The wide-spread use of XML has sparked the interest of both the database and information retrieval research communities. XML databases are designed to store and query large volumes of XML data. Structured information retrieval or XML-IR is the application of information retrieval concepts and...
متن کاملCWI at ImageCLEF 2008
CWI used PF/Tijah, a flexible XML retrieval system, to evaluate image retrieval based on textual evidence in the context of the wikipediaMM task at ImageCLEF 2008. We employed a language modelling framework and found that the text associated with the Wikipedia images is a good source of evidence. We also investigated a length prior and found that biasing towards images with longer descriptions ...
متن کاملReport of the INEX 2003 Metrics working group
This paper summarises the discussions of the metrics working group at the INEX 2003 Workshop, Dagstuhl, Dec 15-17 2003. Members of the group were Djoerd Hiemstra (U. of Twente), Jaap Kamps (ILLC, U. of Amsterdam), Gabriella Kazai (Queen Mary U. of London), Yosi Mass (IBM Haifa), Vojkan Mihajlovic (U. of Twente), Paul Ogilvie (Carnegie Mellon U.), Jovan Pehcevski (RMIT U.), Arjen de Vries (CWI) ...
متن کاملManaging structured queries in probabilistic XML retrieval systems
Focusing on the context of XML retrieval, in this paper we propose a general methodology for managing structured queries (involving both content and structure) within any given structured probabilistic information retrieval system which is able to compute posterior probabilities of relevance for structural components given a non-structured query (involving only query terms but not structural re...
متن کامل