activity
20142026
most citedAn improved approximation algorithm for k-median problem using a new factor-revealing LP

3 citations · 6 across the 8 of their papers we have counts for

collaborators

8 papers

math.OC2026

Full characterization of core for nonlinear optimization games

Donglei Du, Qizhi Fang, Bin Liu +2

We fully characterize the core of a broad class of nonlinear games by identifying a suitable relaxation for inherent nonlinearity, directly generalizing the linear frameworks in th…

math.OC2022

Parallel algorithms for maximizing one-sided -smooth function

Hongxiang Zhang, Yukun Cheng, Chenchen Wu +2

In this paper, we study the problem of maximizing a monotone normalized one-sided -smooth ( for short) function , subject to a convex polytope. This problem was first…

cs.DS2022

Maximizing Modular plus Non-monotone Submodular Functions

Xin Sun, Chenchen Wu, Dachuan Xu +1

The research problem in this work is the relaxation of maximizing non-negative submodular plus modular with the entire real number domain as its value range over a family of down-c…

cs.DS2022★ 2 cited

An improved approximation algorithm for maximizing a DR-submodular function over a convex set

Donglei Du, Zhicheng Liu, Chenchen Wu +2

Maximizing a DR-submodular function subject to a general convex set is an NP-hard problem arising from many applications in combinatorial optimization and machine learning. While i…

cs.DS2020

Outliers Detection Is Not So Hard: Approximation Algorithms for Robust Clustering Problems Using Local Search Techniques

Yishui Wang, Rolf H. Möhring, Chenchen Wu +2

In this paper, we consider two types of robust models of the -median/-means problems: the outlier-version (-MedO/-MeaO) and the penalty-version (-MedP/-MeaP), in…

cs.LG2020★ 1 cited

Too Much Information Kills Information: A Clustering Perspective

Yicheng Xu, Vincent Chau, Chenchen Wu +3

Clustering is one of the most fundamental tools in the artificial intelligence area, particularly in the pattern recognition and learning theory. In this paper, we propose a simple…