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Algorithms for the metric ring star problem with fixed edge-cost ratio 期刊论文
JOURNAL OF COMBINATORIAL OPTIMIZATION, 2021, 卷号: 42, 期号: 3, 页码: 499-523
作者:  Chen, Xujin;  Hu, Xiaodong;  Jia, Xiaohua;  Tang, Zhongzheng;  Wang, Chenhao;  Zhang, Ying
收藏  |  浏览/下载:130/0  |  提交时间:2022/04/02
Ring star  Approximation algorithms  Heuristics  Local search  Connected facility location  
Tight efficiency lower bounds for strategy-proof mechanisms in two-opposite-facility location game 期刊论文
INFORMATION PROCESSING LETTERS, 2021, 卷号: 168, 页码: 6
作者:  Chen, Xujin;  Hu, Xiaodong;  Tang, Zhongzheng;  Wang, Chenhao
收藏  |  浏览/下载:204/0  |  提交时间:2021/04/26
Facility location game  (Universally) strategy-proof mechanism  Approximation algorithms  Inapproximability  
Finding connected kappa-subgraphs with high density 期刊论文
INFORMATION AND COMPUTATION, 2017, 卷号: 256, 页码: 160-173
作者:  Chen, Xujin;  Hua, Xiaodong;  Wang, Changjun
收藏  |  浏览/下载:141/0  |  提交时间:2018/07/30
Densest kappa-subgraphs  Heaviest kappa-subgraphs  Connectivity  Approximation algorithms  Interval graphs  
Approximation algorithms for pricing with negative network externalities 期刊论文
JOURNAL OF COMBINATORIAL OPTIMIZATION, 2017, 卷号: 33, 期号: 2, 页码: 681-712
作者:  Cao, Zhigang;  Chen, Xujin;  Hu, Xiaodong;  Wang, Changjun
收藏  |  浏览/下载:150/0  |  提交时间:2018/07/30
Pricing  Approximation algorithms  NP-hardness  Social networks  Random networks  Negative externalities  
Approximation for the minimum cost doubly resolving set problem 期刊论文
THEORETICAL COMPUTER SCIENCE, 2016, 卷号: 609, 页码: 526-543
作者:  Chen, Xujin;  Hu, Xiaodong;  Wang, Changjun
收藏  |  浏览/下载:139/0  |  提交时间:2018/07/30
Source location  Doubly resolving set  Approximation algorithms  Polynomial-time solvability  Metric dimension  
Cost-Effective Designs of Fault-Tolerant Access Networks in Communication Systems 期刊论文
NETWORKS, 2009, 卷号: 53, 期号: 4, 页码: 382-391
作者:  Chen, Xujin;  Chen, Bo
收藏  |  浏览/下载:112/0  |  提交时间:2018/07/30
communication network design  approximation algorithm  primal-dual schema  
Approximation Algorithms for Soft-Capacitated Facility Location in Capacitated Network Design 期刊论文
ALGORITHMICA, 2009, 卷号: 53, 期号: 3, 页码: 263-297
作者:  Chen, Xujin;  Chen, Bo
收藏  |  浏览/下载:129/0  |  提交时间:2018/07/30
Facility location  Network design  Soft capacity  Approximation algorithm  Performance guarantee  
Data Gathering Schedule for Minimal Aggregation Time in Wireless Sensor Networks 期刊论文
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, 2009, 卷号: 5, 期号: 4, 页码: 321-337
作者:  Chen, Xujin;  Hu, Xiaodong;  Zhu, Jianming
收藏  |  浏览/下载:141/0  |  提交时间:2018/07/30
Wireless Sensor Networks  Data Aggregations  Convergecast  Collision-free Transmission  Unit Disk Graphs  Approximation Algorithm  
On the restricted forwarding index problem in communication networks 期刊论文
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2007, 卷号: 53, 期号: 11, 页码: 1633-1643
作者:  Xu, Min;  Chen, Xujin;  Hu, Xiaodong
收藏  |  浏览/下载:125/0  |  提交时间:2018/07/30
routing  vertex-forwarding index  edge-forwarding index  approximation algorithm  load restriction  
A min-max theorem on tournaments 期刊论文
SIAM JOURNAL ON COMPUTING, 2007, 卷号: 37, 期号: 3, 页码: 923-937
作者:  Chen, Xujin;  Hu, Xiaodong;  Zang, Wenan
收藏  |  浏览/下载:142/0  |  提交时间:2018/07/30
min-max relation  feedback vertex set  tournament  packing  covering