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Advances in Focused Retrieval: 7th International Workshop of by Jaap Kamps, Shlomo Geva, Andrew Trotman, Alan Woodley,

By Jaap Kamps, Shlomo Geva, Andrew Trotman, Alan Woodley, Marijn Koolen (auth.), Shlomo Geva, Jaap Kamps, Andrew Trotman (eds.)

This ebook constitutes the completely refereed court cases of the seventh overseas Workshop of the Initiative for the review of XML Retrieval, INEX 2008, held at Dagstuhl citadel, Germany, in December 2008.

The goal of the INEX 2008 workshop used to be to collect researchers who participated within the INEX 2008 crusade. Over the yr prime as much as the development, engaging corporations contributed to the construction of a large-scale XML try out assortment by means of growing themes, appearing retrieval runs, and delivering relevance exams. The workshop concluded the result of this large-scale attempt, summarized and addressed the problems encountered, and devised a piece plan for the long run overview of XML retrieval structures. The forty nine papers incorporated during this quantity document the ultimate result of INEX 2008. they've been divided into sections in response to the seven tracks of the workshop, investigating quite a few features of XML retrieval, from booklet seek to entity rating, together with interplay aspects.

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Extra info for Advances in Focused Retrieval: 7th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2008, Dagstuhl Castle, Germany, December 15-18, 2008. Revised and Selected Papers

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The runs ranked first (p5-Terrier ), fourth (p92-autoindri0 ), and seventh (p10-TOPXCOarti) retrieve exclusively full articles. Again, it is no great surprise that these runs do well for the task of article retrieval. The resulting ranking is quite different from the article ranking based on the judged ad hoc topics in Table 13. They have only one run in common, although they agree on five of the ten participants. Looking, more formally, at the system rank correlations between the two types of article retrieval we see the following.

When examining the relative effectiveness of CO and CAS we found that for all tasks the best scoring runs used the CO query. This is in contrast with earlier results showing that structural hints can help promote initial precision [8]. Part of the explanation may be in the low number of CAS submissions (28) in comparison with the number of CO submissions (108). Only 39 of the 70 judged topics had a non-trivial CAS query, and the majority of those CAS queries made only reference to particular tags and not on their structural relations.

7 Discussion and Conclusions In this paper we provided an overview of the INEX 2008 Ad Hoc Track that contained three tasks: For the Focused Task a ranked-list of non-overlapping results (elements or passages) was required. For the Relevant in Context Task non-overlapping results (elements or passages) grouped by the article that they belong to were required. For the Best in Context Task a single starting point (element’s starting tag or passage offset) per article was required. We discussed the results for the three tasks, and analysed the relative effectiveness of element and passage runs, and of keyword (CO) queries and structured queries (CAS).

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