Advances in Information Retrieval: 37th European Conference by Allan Hanbury, Gabriella Kazai, Andreas Rauber, Norbert Fuhr

By Allan Hanbury, Gabriella Kazai, Andreas Rauber, Norbert Fuhr

This e-book constitutes the complaints of the thirty seventh eu convention on IR study, ECIR 2015, held in Vienna, Austria, in March/April 2015. The forty four complete papers, forty-one poster papers and seven demonstrations offered including three keynotes during this quantity have been rigorously reviewed and chosen from 305 submissions. the focal point of the papers have been on following themes: aggregated seek and variety, category, cross-lingual and discourse, potency, review, occasion mining and summarisation, details extraction, recommender structures, semantic and graph-based versions, sentiment and opinion, social media, particular seek initiatives, temporal versions and lines, subject and rfile types, person habit and reproducible IR.

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Additional info for Advances in Information Retrieval: 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings

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Consider the following user information need: travelling to Austria. Finding all the information that satisfies this need typically involves submitting several queries, each 1 We use the terms “facet", “aspect" and “subtopic" interchangeably throughout the paper. A. Hanbury et al. ): ECIR 2015, LNCS 9022, pp. 13–24, 2015. c Springer International Publishing Switzerland 2015 14 H. Bota, K. M. Jose focusing on different aspects of travelling, such as directions, accommodation or points of interest.

Vertical distributions is detailed in Figures 4 and 5. Document Roles. Prior work on composite retrieval on the Web constructed bundles by attaching search results to a central document, or set of documents, also called a pivot[4]. Inspired by this approach, we analyse different functions that documents perform within bundles. We distinguish between two separate functions: – Pivot documents – Set of documents that appear in multiple bundles on the same subtopic, where bundle subtopic agreement is established as previously described.

8 A. Bouchoucha, X. -Y. Nie Table 2. All features computed in this work for automatically weighting resources. (Here, q denotes an original query, D denotes the set of top 50 retrieval results of q, and r denotes a resource that could be Wikipedia, ConceptNet, query logs, or feedback documents). , nodes that are connected to at least two edges) NumDiffRelations Number of different relation types defined between the adjacent nodes in the 1 graph of q * Query logs: PropQL Proportion of the terms of q that appear in the query logs 1 NumClicks Max, Min and average number of clicked URLs for q in all the sessions 3 PercentageClicks Percentage of shared clicked URLs between different users who issued q 1 ClickEntropy Click entropy of the query q [11] 1 NumSessions Total number of sessions with q 1 SessionLength Max, Min and average session duration (in seconds) with q 3 NumTermsReform Total number of different terms added by users to reformulate q in all the sessions 1 ReformLength Max, Min and average number of terms added by users to reformulate q 3 in all the sessions Grand Total 39 document collection.

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