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CIKM
2008
Springer
15 years 8 months ago
SoRec: social recommendation using probabilistic matrix factorization
Data sparsity, scalability and prediction quality have been recognized as the three most crucial challenges that every collaborative filtering algorithm or recommender system conf...
Hao Ma, Haixuan Yang, Michael R. Lyu, Irwin King
JOS
2010
72views more  JOS 2010»
15 years 1 months ago
Discrete-event simulation is dead, long live agent-based simulation!
There has been much discussion about why agent-based simulation is not as widely used as discrete-event simulation in Operational Research as it is in neighbouring disciplines suc...
Peer-Olaf Siebers, Charles M. Macal, Jeremy Garnet...
ATAL
2008
Springer
15 years 8 months ago
Does the contingency of agents' nonverbal feedback affect users' social anxiety?
We explored the association between users' social anxiety and the interactional fidelity of an agent (also referred to as a virtual human), specifically addressing whether th...
Sin-Hwa Kang, Jonathan Gratch, Ning Wang, James H....
WWW
2009
ACM
16 years 7 months ago
A measurement-driven analysis of information propagation in the flickr social network
Online social networking sites like MySpace, Facebook, and Flickr have become a popular way to share and disseminate content. Their massive popularity has led to viral marketing t...
Meeyoung Cha, Alan Mislove, P. Krishna Gummadi
WWW
2009
ACM
16 years 7 months ago
Community gravity: measuring bidirectional effects by trust and rating on online social networks
Several attempts have been made to analyze customer behavior on online E-commerce sites. Some studies particularly emphasize the social networks of customers. Users' reviews ...
Yutaka Matsuo, Hikaru Yamamoto