Plane Sweep Algorithms for the Polygonal Approximation Problems with Applications. - D. P. Wang; N. F. Huang; H. S. Chao; Richard C. T. Lee (ISAAC, 1993)

An Optimal EREW Parallel Algorithm for Computing Breadth-First Search Trees on Permutation Graphs. - H. S. Chao; Fang-Rong Hsu; Richard C. T. Lee (Inf. Process. Lett., 1997)

An optimal algorithm for finding the minimum cardinality dominating set on permutation graphs. - H. S. Chao; Fang-Rong Hsu; Richard C. T. Lee (Discret. Appl. Math., 2000)

Some Optimal Parallel Algorithms on Interval and Circular-arc Graphs. - Fang-Rong Hsu; Man-Kwan Shan; H. S. Chao; Richard C. T. Lee (J. Inf. Sci. Eng., 2005)