Publication type: Conference paper
Type of review: Not specified
Title: BM25 for non-textual modalities in social book search
Authors: Imhof, Melanie
Proceedings: Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum
Page(s): 1119
Pages to: 1123
Conference details: CLEF 2016 Conference and Labs of the Evaluation Forum, √Čvora, Portugal, 5-8 September 2016
Issue Date: 2016
Series: Labs Working Notes
Series volume: 1609
Publisher / Ed. Institution: CEUR-WS
ISSN: 1613-0073
Language: English
Subjects: Multimodal
Subject (DDC): 020: Library and information sciences
Abstract: The Social Book Search (SBS) lab at CLEF 2016 provides a complex test collection that gives the opportunity to experiment with retrieval methods that combine various modalities in order to achieve the best possible ranked list. We show how the idea of being "characteristic", which is used as the core concept in most of the weighting schemes used for textual modalities, can be applied to non-textual modalities. Our approach redefines BM25 for the three non-textual modalities found in the SBS collection: ratings, price and number of pages. A fuzzy query is constructed from the user preferences inferred from the user's catalog. The results are used to re-rank a textual baseline, which significantly improves the retrieval effectiveness.
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Applied Information Technology (InIT)
Appears in collections:Publikationen School of Engineering

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