Title
Language Models for Collaborative Filtering Neighbourhoods.
Abstract
Language Models are state-of-the-art methods in Information Retrieval. Their sound statistical foundation and high effectiveness in several retrieval tasks are key to their current success. In this paper, we explore how to apply these models to deal with the task of computing user or item neighbourhoods in a collaborative filtering scenario. Our experiments showed that this approach is superior to other neighbourhood strategies and also very efficient. Our proposal, in conjunction with a simple neighbourhood-based recommender, showed a great performance compared to state-of-the-art methods (NNCosNgbr and PureSVD) while its computational complexity is low.
Year
Venue
Field
2016
ECIR
Recommender system,Data mining,Collaborative filtering,Information retrieval,Computer science,Neighbourhood (mathematics),Artificial intelligence,Machine learning,Language model,Computational complexity theory
DocType
Citations 
PageRank 
Conference
6
0.44
References 
Authors
17
3
Name
Order
Citations
PageRank
Daniel Valcarce1548.51
Javier Parapar218825.91
Alvaro Barreiro322622.42