The TIJAH XML-IR system at INEX 2003

Johan List, Vojkan Mihajlovic, Arjen P. de Vries, G. Ramirez, Djoerd Hiemstra

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This paper discusses our participation in INEX (the Initiative for the Evaluation of XML Retrieval) using the TIJAH XML-IR system. TIJAH’s system design follows a ‘standard’ layered database architecture, carefully separating the conceptual, logical and physical levels. At the conceptual level, we classify the INEX XPath-based query expressions into three different query patterns. For each pattern, we present its mapping into a query execution strategy. The logical layer exploits probabilistic region algebra as the basis for query processing. We discuss the region operators used to select and manipulate XML document components. The logical algebra expressions are mapped into efficient relational algebra expressions over a physical representation of the XML document collection using the ‘pre-post numbering scheme’. The paper concludes with a preliminary analysis of the evaluation results of the submitted runs.
Original languageEnglish
Title of host publicationProceedings of the 2nd Initiative on the Evaluation of XML Retrieval (INEX 2003)
Place of PublicationDuisburg, Germany
PublisherUniversity of Duisburg
Number of pages8
Publication statusPublished - Dec 2003
Event2nd International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2003 - Dagstuhl Castle, Dagstuhl, Germany
Duration: 15 Dec 200317 Dec 2003
Conference number: 2


Workshop2nd International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2003
Abbreviated titleINEX




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