User based Collaborative Filtering with Temporal Information for Purchase Data

Maunendra Sankar Desarkar, Sudeshna Sarkar

2012

Abstract

User based collaborative filtering algorithms are widely used for generating recommendations for users. Standard user based collaborative filtering algorithms do not consider time as a factor while measuring the user similarities and building the recommendation list. However, users’ interests often shift with time. Recommender systems should therefore rely on recent purchases of the users to address this user dynamics. Items also have their own dynamics. Most of the items in a recommender system are widely popular just after their releases but do not sell that well afterwards. Giving more importance to the recent purchases of the experts may capture the item dynamics and hence result in better recommendation accuracy. We study the performances of different time-aware user based collaborative filtering algorithms on several benchmark datasets. The proposed algorithms use the time-of-purchase information for calculating user similarities. The time information is also used while combining the purchase behaviors of the experts and generating the final recommendation.

Paper Citation

in Harvard Style

Desarkar M. and Sarkar S. (2012). User based Collaborative Filtering with Temporal Information for Purchase Data . In Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2012) ISBN 978-989-8565-29-7, pages 55-64. DOI: 10.5220/0004134400550064

in Bibtex Style

@conference{kdir12,
author={Maunendra Sankar Desarkar and Sudeshna Sarkar},
title={User based Collaborative Filtering with Temporal Information for Purchase Data},
booktitle={Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2012)},
year={2012},
pages={55-64},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004134400550064},
isbn={978-989-8565-29-7},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Knowledge Discovery and Information Retrieval - Volume 1: KDIR, (IC3K 2012)
TI - User based Collaborative Filtering with Temporal Information for Purchase Data
SN - 978-989-8565-29-7
AU - Desarkar M.
AU - Sarkar S.
PY - 2012
SP - 55
EP - 64
DO - 10.5220/0004134400550064