Title
Looking for "good" recommendations: a comparative evaluation of recommender systems
Abstract
A number of researches in the Recommender Systems (RSs) domain suggest that the recommendations that are "best" according to objective metrics are sometimes not the ones that are most satisfactory or useful to the users. The paper investigates the quality of RSs from a user-centric perspective. We discuss an empirical study that involved 210 users and considered seven RSs on the same dataset that use different baseline and state-of-the-art recommendation algorithms. We measured the user's perceived quality of each of them, focusing on accuracy and novelty of recommended items, and on overall users' satisfaction. We ranked the considered recommenders with respect to these attributes, and compared these results against measures of statistical quality of the considered algorithms as they have been assessed by past studies in the field using information retrieval and machine learning algorithms.
Year
DOI
Venue
2011
10.1007/978-3-642-23765-2_11
INTERACT (3)
Keywords
Field
DocType
past study,objective metrics,overall user,information retrieval,recommender system,recommender systems,statistical quality,recommended item,state-of-the-art recommendation algorithm,different baseline,comparative evaluation,empirical study
Recommender system,Information retrieval,Ranking,Computer science,Novelty,RSS,Empirical research
Conference
Volume
ISSN
Citations 
6948
0302-9743
38
PageRank 
References 
Authors
1.11
22
5
Name
Order
Citations
PageRank
Paolo Cremonesi1130687.23
Franca Garzotto21245203.98
Sara Negro3622.01
Alessandro Papadopoulos428127.10
Roberto Turrin585934.94