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Authors: Dmitry Dolgikh and Ivan Jelínek

Affiliation: Czech Technical University in Prague, Czech Republic

Keyword(s): Recommendation Systems, Graph-based Recommendations, User Preference, Social Network Analysis, Eigenvector Centrality.

Related Ontology Subjects/Areas/Topics: Artificial Intelligence ; Context Discovery ; Information Extraction ; Knowledge Discovery and Information Retrieval ; Knowledge-Based Systems ; Mining Multimedia Data ; Symbolic Systems ; User Profiling and Recommender Systems

Abstract: The most of recommendation systems rely on the statistical correlations of the past explicitly given user rating for items (e.g. collaborative filtering). However, in conditions of insufficient data of past rating activities, these systems are facing difficulties in rating prediction, this situation is commonly known as the cold-start problem. This paper describes how graph-based represendation and Social Network Analysis can be used to help dealing with cold-start problem. We proposed a method to predict user rating based on the hypotesis that the rating of the node in the network corresponded to the rating of the most important nodes which are connected to it. The proposed method has been particularly applied to three MovieLens datasets to evaluate rating predition performance. Obtained results showed competitiveness of our method.

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Paper citation in several formats:
Dolgikh, D. and Jelínek, I. (2016). Graph-based Rating Prediction using Eigenvector Centrality. In Proceedings of the 8th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2016) - KDIR; ISBN 978-989-758-203-5; ISSN 2184-3228, SciTePress, pages 228-233. DOI: 10.5220/0006044902280233

@conference{kdir16,
author={Dmitry Dolgikh. and Ivan Jelínek.},
title={Graph-based Rating Prediction using Eigenvector Centrality},
booktitle={Proceedings of the 8th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2016) - KDIR},
year={2016},
pages={228-233},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006044902280233},
isbn={978-989-758-203-5},
issn={2184-3228},
}

TY - CONF

JO - Proceedings of the 8th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (IC3K 2016) - KDIR
TI - Graph-based Rating Prediction using Eigenvector Centrality
SN - 978-989-758-203-5
IS - 2184-3228
AU - Dolgikh, D.
AU - Jelínek, I.
PY - 2016
SP - 228
EP - 233
DO - 10.5220/0006044902280233
PB - SciTePress

- Science and Technology Publications, Lda.
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