Title
Exploiting Hierarchy for Ranking-based Recommendation
Abstract
The purpose of this masteru0027s thesis is to study and develop a new algorithmic framework for collaborative filtering (CF) to generate recommendations. The method we propose is based on the exploitation of the hierarchical structure of the item space and intuitively stands on the property of Near Complete Decomposability (NCD) which is inherent in the structure of the majority of hierarchical systems. Building on the intuition behind the NCDawareRank algorithm and its related concept of NCD proximity, we model our system in a way that illuminates its endemic characteristics and we propose a new algorithmic framework for recommendations, called HIR. We focus on combining the direct with the NCD neighborhoods of items to achieve better characterization of the inter-item relations, in order to improve the quality of recommendations and alleviate sparsity related problems.
Year
Venue
DocType
2015
arXiv: Information Retrieval
Journal
Volume
Citations 
PageRank 
abs/1512.07444
0
0.34
References 
Authors
0
1
Name
Order
Citations
PageRank
Marianna Kouneli150.78