Time Weight Content-based Extensions of Temporal Graphs for Personalized Recommendation

Armel Jacques Nzekon Nzeko'o, Maurice Tchuente, Matthieu Latapy

2017

Abstract

Recommender systems are an answer to information overload on the web. They filter and present to customers, small subsets of items that they are most likely to be interested in. Users’ interests may change over time, and accurately capturing this dynamics in such systems is important. Sugiyama, Hatano and Yoshikawa proposed to take into account the user’s browsing history. Ding and Li were among the first to address this problem, by assigning weights that decrease with the age of the data. Others authors such as Billsus and Pazzani, Li, Yang, Wang and Kitsuregawa proposed to capture long- and short- terms preferences and combine them for personalized search or news access. The Session-based Temporal Graph (STG) is a general model proposed by Xiang et al. to provide temporal recommendations by combining long- and short-term preferences. Later, Yu, Shen and Yang have introduced Topic-STG, which takes into account topics information extracted from data. In this paper, we propose Time Weight Content-based STG that generalizes Topic STG. Experiments show that, using Time-Averaged Hit Ratio as measure, this time weight content-based extension of STG leads to performance increases of 4%, 6% and 9% for CiteUlike, Delicious and Last.fm datasets respectively, in comparison to STG.

Paper Citation

in Harvard Style

Nzeko'o A., Tchuente M. and Latapy M. (2017). Time Weight Content-based Extensions of Temporal Graphs for Personalized Recommendation . In Proceedings of the 13th International Conference on Web Information Systems and Technologies - Volume 1: WEBIST, ISBN 978-989-758-246-2, pages 268-275. DOI: 10.5220/0006288202680275

in Bibtex Style

@conference{webist17,
author={Armel Jacques Nzekon Nzeko'o and Maurice Tchuente and Matthieu Latapy},
title={Time Weight Content-based Extensions of Temporal Graphs for Personalized Recommendation},
booktitle={Proceedings of the 13th International Conference on Web Information Systems and Technologies - Volume 1: WEBIST,},
year={2017},
pages={268-275},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006288202680275},
isbn={978-989-758-246-2},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 13th International Conference on Web Information Systems and Technologies - Volume 1: WEBIST,
TI - Time Weight Content-based Extensions of Temporal Graphs for Personalized Recommendation
SN - 978-989-758-246-2
AU - Nzeko'o A.
AU - Tchuente M.
AU - Latapy M.
PY - 2017
SP - 268
EP - 275
DO - 10.5220/0006288202680275