Publications (536)
On Diffusion-restricted Social Network: A Measurement Study of WeChat Moments
Zhuqi Li, Lin Chen, Yichong Bai +2
WeChat is a mobile messaging application that has 549 million active users as of Q1 2015, and "WeChat Moments" (WM) serves its social-networking function that allows users to post/…
On the Schmidt-rank-three bipartite and multipartite unitary operator
Lin Chen, Li Yu
Unitary operations are physically implementable. We further the understanding of such operations by studying the possible forms of nonlocal unitary operators, which are bipartite o…
Weakly Submodular Maximization Beyond Cardinality Constraints: Does Randomization Help Greedy?
Lin Chen, Moran Feldman, Amin Karbasi
Submodular functions are a broad class of set functions, which naturally arise in diverse areas. Many algorithms have been suggested for the maximization of these functions. Unfort…
Scheduling Maintenance Jobs in Networks
Fidaa Abed, Lin Chen, Yann Disser +5
We investigate the problem of scheduling the maintenance of edges in a network, motivated by the goal of minimizing outages in transportation or telecommunication networks. We focu…
Strong convergence rates of stochastic theta methods for index 1 stochastic differential algebraic equations under non-globally Lipschitz conditions
Lin Chen, Ziheng Chen, Jing Zhao
This work investigates numerical approximations of index 1 stochastic differential algebraic equations (SDAEs) with non-constant singular matrices under non-global Lipschitz condit…
Differentially Private User-based Collaborative Filtering Recommendation Based on K-means Clustering
Zhili Chen, Yu Wang, Shun Zhang +2
Collaborative filtering (CF) recommendation algorithms are well-known for their outstanding recommendation performances, but previous researches showed that they could cause privac…