Kwok Pui CHOI

Associate Professor

Department of Statistics and Applied Probability

National University of Singapore

6 Science Drive 2

Singapore 117546

Republic of Singapore


Location : S16 #07-105
Contact No. : 6516 4387
E-mail  :




B.Sc. University of Hong Kong (1st Class Hons)
M.Sc. University of Illinois at Urbana-Champaign
Ph.D. University of Illinois at Urbana-Champaign


Research interests:

Computational Biology

Steinís method

Martingale inequalities




Some sharp inequalities for martingale transforms. Trans. Amer. Math. Soc. 307 (1988) 279-300.
A sharp inequality for martingale transforms and the unconditional basis constant of a monotone basis in L$^p$ (0,1). Trans. Amer. Math. Soc. 330 (1992) 509-529.
(with Louis H. Y. Chen) Some asymptotic and large deviation results in Poisson approximation. Ann. Probab. 20 (1992) 1867-1876.
A remark on the inverse H\"{o}lder inequality. J. Math. Anal. Appl. 180 (1993) 117-121.
(with F. F. Gan) Computing average run length for exponential CUSUM schemes. J. Quality Tech. 26 (1994) 134-143.
On the medians of Gamma distributions and an equation of Ramanujan. Proc. Amer. Math. Soc. 121 (1994) 245-251.
(with A. D. Barbour and Louis H. Y. Chen) Poisson approximation for unbounded functions, I: independant summands. Statistica Sinica 5 (1995) 749-766.
(with Michael J. Klass) Some asymptotically best possible prophet inequalities for convex functions of sums of independent variates and two-way martingale difference sequences. Ann. Probab. 25 (1997) 803-811.
(with Aihua Xia) Approximating the number of successes in independent trials: Binomial versus Poisson. Ann. Appl. Probab. 12 (2002) 1139-1148.
(with Louxin Zhang) Sensitivity analysis and efficient method for identifying optimal spaced seeds. J. Computer & System Sciences 68 (2004) 22-40.
(with A. D. Barbour) A non-uniform bound for translated Poisson approximation. Electronic J. Probability 9 (2004) 18-36.
(with Fanfan Zeng and Louxin Zhang) Good spaced seeds for homology search. Bioinformatics 20 (2004) 1053-1059.
(with David S H Chew, Ming-Ying Leung and H. Heidner) Palindromes in SARS and other coronaviruses. INFORMS J. on Computing 16 (Special issue on Computational Biology/Bioinformatics) (2004) 331-340.
(with Ming Ying Leung, Aihua Xia and Louis H Y Chen) Nonrandom clusters of palindromes in herpesvirus genomes. J. Computational Biology 12 (2005) 331-354.
(with Louxin Zhang) Analysis of Spaced Seed Technique in Sequence Alignment. COSMOS 1 (2005) 57-73.
(with David S. H. Chew and Ming Ying Leung) Scoring schemes of palindrome clusters for more sensitive prediction of replication origins in herpesviruses. Nucleic Acids Res. 33(15), (2005) e134.
(with Kang Ning, Hon Wai Leong and Louxin Zhang) A post-processing method for optimizing synthesis strategy for oligonucleotide microarrays. Nucleic Acids Res. 33(17), (2005) e144.
(with F. Preparata and Louxin Zhang) Quick, practical selection of effective seeds for homology search. J. Computational Biology 12 (2005) 1137-1152.