Title
A Novel Hierarchical Approach to Ranking-Based Collaborative Filtering.
Abstract
In this paper, we propose a novel recommendation method that exploits the intrinsic hierarchical structure of the item space to overcome known shortcomings of current collaborative filtering techniques. A number of experiments on the MovieLens dataset, suggest that our method alleviates the problems caused by the sparsity of the underlying space and the related limitations it imposes on the quality of recommendations. Our tests show that our approach outperforms other state-of-the- art recommending algorithms, having at the same time the advantage of being computationally attractive and easily implementable.
Year
DOI
Venue
2013
10.1007/978-3-642-41016-1_6
Communications in Computer and Information Science
Keywords
Field
DocType
Recommender Systems,Collaborative Filtering,Sparsity,Ranking Algorithms,Experiments
Recommender system,Data mining,Learning to rank,Collaborative filtering,Ranking,Computer science,MovieLens,Exploit,Artificial intelligence,Machine learning
Conference
Volume
ISSN
Citations 
384
1865-0929
5
PageRank 
References 
Authors
0.45
10
3
Name
Order
Citations
PageRank
Athanasios N. Nikolakopoulos1599.02
Marianna Kouneli250.78
John D. Garofalakis317636.73