Improved Approximation Algorithm for Connected Facility Location Problems. - Mohammad Khairul Hasan; Hyunwoo Jung; Kyung-Yong Chwa (COCOA, 2007)

Improved Primal-Dual Approximation Algorithm for the Connected Facility Location Problem. - Hyunwoo Jung; Mohammad Khairul Hasan; Kyung-Yong Chwa (COCOA, 2008)

Approximation algorithms for connected facility location problems. - Mohammad Khairul Hasan; Hyunwoo Jung; Kyung-Yong Chwa (J. Comb. Optim., 2008)

Bounds on the Geometric Mean of Arc Lengths for Bounded-Degree Planar Graphs. - Mohammad Khairul Hasan; Sung-Eui Yoon; Kyung-Yong Chwa (FAW, 2009)

A 6.55 factor primal-dual approximation algorithm for the connected facility location problem. - Hyunwoo Jung; Mohammad Khairul Hasan; Kyung-Yong Chwa (J. Comb. Optim., 2009)

Probabilistic cost model for nearest neighbor search in image retrieval. - Kunho Kim; Mohammad Khairul Hasan; Jae-Pil Heo; Yu-Wing Tai; Sung-Eui Yoon (Comput. Vis. Image Underst., 2012)

Approximation algorithms for the Weighted t-Uniform Sparsest Cut and some other graph partitioning problems. - Mohammad Khairul Hasan; Kyung-Yong Chwa (J. Comput. Syst. Sci., 2016)