35 citations · 90 across the 12 of their papers we have counts for
3 papers · 1 filter
EigenRec: Generalizing PureSVD for Effective and Efficient Top-N Recommendations
Athanasios N. Nikolakopoulos, Vassilis Kalantzis, Efstratios Gallopoulos +1
We introduce EigenRec; a versatile and efficient Latent-Factor framework for Top-N Recommendations that includes the well-known PureSVD algorithm as a special case. EigenRec builds…
Top-N recommendations in the presence of sparsity: An NCD-based approach
Athanasios N. Nikolakopoulos, John D. Garofalakis
Making recommendations in the presence of sparsity is known to present one of the most challenging problems faced by collaborative filtering methods. In this work we tackle this pr…
Random Surfing Without Teleportation
Athanasios N. Nikolakopoulos, John D. Garofalakis
In the standard Random Surfer Model, the teleportation matrix is necessary to ensure that the final PageRank vector is well-defined. The introduction of this matrix, however, resul…