GPX - Gardens Point XML IR at INEX 2006
Geva, Shlomo (2007) GPX - Gardens Point XML IR at INEX 2006. Comparative Evaluation of XML Information Retrieval Systems (LNCS), 4518, pp. 137-150.
Abstract The INEX 2006 evaluation was based on the Wikipedia collection in XML format. It consisted of several tasks that required different approaches. In this paper we described the approach that we adopted in an attempt to satisfy the requirements of all the tasks, Thorough, Focused, Relevant in Context, and Best in Context. We have used the same underlying system to approach all tasks. The retrieval strategy is based on the construction of a collection sub-tree, consisting of all nodes that contain one or more of the search terms. Nodes containing search terms are then assigned a score using the GPX ranking scheme which incorporates TF-IDF or BM25 variants, but extends them. Scores are propagated upwards in the document XML tree, and finally all XML elements are ranked. We present results that demonstrate that the approach is versatile and produces consistently good performance. We also provide empirical analysis of the GPX ranking scheme and demonstrate its performance against a baseline TF-IDF and a BM25 scoring scheme.
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|Item Type:||Journal Article|
|Keywords:||XML IR INFORMATION RETRIEVAL GPX INEX EVALUATION|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > LIBRARY AND INFORMATION STUDIES (080700) > Information Retrieval and Web Search (080704)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Natural Language Processing (080107)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2007 Springer-Verlag|
|Copyright Statement:||This is the author-version of the work. Conference proceedings published, by Springer Verlag, will be available via SpringerLink. http://www.springer.de/comp/lncs/ Lecture Notes in Computer Science|
|Deposited On:||18 Dec 2007|
|Last Modified:||29 Feb 2012 13:33|
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