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Authors: Zheng Zhu 1 ; Mark Levene 1 and Ingemar Cox 2

Affiliations: 1 Birkbeck College, United Kingdom ; 2 University College London, United Kingdom

Keyword(s): Ranking, Classification.

Related Ontology Subjects/Areas/Topics: Artificial Intelligence ; Business Analytics ; Data Analytics ; Data Engineering ; Knowledge Discovery and Information Retrieval ; Knowledge-Based Systems ; Symbolic Systems

Abstract: Ranking search results is an ongoing research topic in information retrieval. The traditional models are the vector space, probabilistic and language models, and more recently machine learning has been deployed in an effort to learn how to rank search results. Categorization of search results has also been studied as a means to organize the results, and hence to improve users search experience. However there is little research to-date on ranking categories of results in comparison to ranking the results themselves. In this paper, we propose a probabilistic ranking model that includes categories in addition to a ranked results list, and derive six ranking methods from the model. These ranking methods utilize the following features: the class probability distribution based on query classification, the lowest ranked document within each class and the class size. An empirical study was carried out to compare these methods with the traditional ranked-list approach in terms of rank positio ns of click-through documents and experimental results show that there is no simpler winner in all cases. Better performance is attained by class size or a combination of the class probability distribution of the queries and the rank of the document with the lowest list rank within the class. (More)

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Paper citation in several formats:
Zhu, Z.; Levene, M. and Cox, I. (2010). RANKING CLASSES OF SEARCH ENGINE RESULTS. In Proceedings of the International Conference on Knowledge Discovery and Information Retrieval (IC3K 2010) - KDIR; ISBN 978-989-8425-28-7; ISSN 2184-3228, SciTePress, pages 294-301. DOI: 10.5220/0003100902940301

@conference{kdir10,
author={Zheng Zhu. and Mark Levene. and Ingemar Cox.},
title={RANKING CLASSES OF SEARCH ENGINE RESULTS},
booktitle={Proceedings of the International Conference on Knowledge Discovery and Information Retrieval (IC3K 2010) - KDIR},
year={2010},
pages={294-301},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003100902940301},
isbn={978-989-8425-28-7},
issn={2184-3228},
}

TY - CONF

JO - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval (IC3K 2010) - KDIR
TI - RANKING CLASSES OF SEARCH ENGINE RESULTS
SN - 978-989-8425-28-7
IS - 2184-3228
AU - Zhu, Z.
AU - Levene, M.
AU - Cox, I.
PY - 2010
SP - 294
EP - 301
DO - 10.5220/0003100902940301
PB - SciTePress

- Science and Technology Publications, Lda.
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