activity
20052021
most citedSolving the apparent diversity-accuracy dilemma of recommender systems

987 citations · 2.3k across the 33 of their papers we have counts for

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Showing physics.data-anShow all

9 papers · 1 filter

physics.data-an2012★ 52 cited

Solving the accuracy-diversity dilemma via directed random walks

Jian-Guo Liu, Kerui Shi, Qiang Guo

Random walks have been successfully used to measure user or object similarities in collaborative filtering (CF) recommender systems, which is of high accuracy but low diversity. A…

physics.data-an2011★ 124 cited

Information filtering via biased heat conduction

Jian-Guo Liu, Tao Zhou, Qiang Guo

Heat conduction process has recently found its application in personalized recommendation [T. Zhou \emph{et al.}, PNAS 107, 4511 (2010)], which is of high diversity but low accurac…

physics.data-an2011

Information Filtering via Implicit Trust-based Network

Zhao-Guo Xuan, Zhan Li, Jian-Guo Liu

Based on the user-item bipartite network, collaborative filtering (CF) recommender systems predict users' interests according to their history collections, which is a promising way…

physics.data-an2009★ 24 cited

Degree correlation effect of bipartite network on personalized recommendation

Jian-Guo Liu, Tao Zhou, Zhao-Guo Xuan +3

In this paper, by introducing a new user similarity index base on the diffusion process, we propose a modified collaborative filtering (MCF) algorithm, which has remarkably higher…

physics.data-an2009★ 36 cited

Effect of user tastes on personalized recommendation

Jian-Guo Liu, Tao Zhou, Qiang Guo +2

In this paper, based on a weighted projection of the user-object bipartite network, we study the effects of user tastes on the mass-diffusion-based personalized recommendation algo…

physics.data-an2008★ 56 cited

Highly accurate recommendation algorithm based on high-order similarities

Jian-Guo Liu, Tao Zhou, Bing-Hong Wang +1

In this Letter, we introduce a modified collaborative filtering (MCF) algorithm, which has remarkably higher accuracy than the standard collaborative filtering. In the MCF, instead…