375 citations · 532 across the 28 of their papers we have counts for
3 papers · 1 filter
Temporal Matrix Factorization for Tracking Concept Drift in Individual User Preferences
Yung-Yin Lo, Wanjiun Liao, Cheng-Shang Chang
The matrix factorization (MF) technique has been widely adopted for solving the rating prediction problem in recommender systems. The MF technique utilizes the latent factor model…
A Probabilistic Framework for Structural Analysis in Directed Networks
Cheng-Shang Chang, Duan-Shin Lee, Li-Heng Liou +2
In our recent works, we developed a probabilistic framework for structural analysis in undirected networks. The key idea of that framework is to sample a network by a symmetric biv…
A Mathematical Theory for Clustering in Metric Spaces
Cheng-Shang Chang, Wanjiun Liao, Yu-Sheng Chen +1
Clustering is one of the most fundamental problems in data analysis and it has been studied extensively in the literature. Though many clustering algorithms have been proposed, clu…