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Authors: Sara Abri 1 ; Rayan Abri 1 and Salih Cetin 2

Affiliations: 1 Department of Computer Engineering, Hacettepe University, Ankara, Turkey ; 2 Mavinci Informatics Inc., Ankara, Turkey

Keyword(s): Personalized Web Search, User Search Behaviour, Topical User Model, Latent Dirichlet Allocation.

Abstract: Exploring the effect of personalization on different queries can improve the ranking result. There is a need for a mechanism to estimate the potential for personalization for queries. Previous methods to estimate the potential for personalization such as click entropy and topic entropy are based on the prior clicked document for query or query history. They have limitations like unavailability of the prior clicked data for new/unseen queries or queries without history. To alleviate the problem, we provide a solution for the queries regardless of query history. In this paper, we present a new metric using the topic distribution of user documents in the topical user profile, to estimate the potential for personalization for all queries. Using the proposed metric, we can achieve more performance for queries with history and solve the cold start problem of queries without history. To improve personalized search, we provide a personalization ranking model by combining personalized and non -personalized topic models where the proposed metric is used to estimate personalization. The result reveals that the personalization ranking model using the proposed metric improves the Mean Reciprocal Rank and the Normalized Discounted Cumulative Gain by 5% and 4% respectively. (More)

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Paper citation in several formats:
Abri, S.; Abri, R. and Cetin, S. (2020). Estimating Personalization using Topical User Profile. In Proceedings of the 12th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2020) - KDIR; ISBN 978-989-758-474-9; ISSN 2184-3228, SciTePress, pages 145-152. DOI: 10.5220/0010015201450152

@conference{kdir20,
author={Sara Abri. and Rayan Abri. and Salih Cetin.},
title={Estimating Personalization using Topical User Profile},
booktitle={Proceedings of the 12th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2020) - KDIR},
year={2020},
pages={145-152},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010015201450152},
isbn={978-989-758-474-9},
issn={2184-3228},
}

TY - CONF

JO - Proceedings of the 12th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2020) - KDIR
TI - Estimating Personalization using Topical User Profile
SN - 978-989-758-474-9
IS - 2184-3228
AU - Abri, S.
AU - Abri, R.
AU - Cetin, S.
PY - 2020
SP - 145
EP - 152
DO - 10.5220/0010015201450152
PB - SciTePress

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