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[Home] [Teaching] [Personal] [Hotlinks]

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Research interests: optimal design of experiments, bandit processes, randomized and adaptive designs of clinical trials (ethics, designs, and analysis), biostatistics, Markov decision processes, mathematical finance, survival analysis.

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[Erdos Number] [Publications] [Manuscripts submitted] [Invited Talks] [Conferences] [Consulting] [Research Team] [Research Grants]

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My Erdos Number

1. My Erdos number is 4: Paul Erdos - L. Bruce Richmond - Jonathan Michael Borwein - Keith F. Taylor - Xikui Wang. Keith F. Taylor was my M.Sc. advisor.
2. Interestingly, I have another Erdos path through my Ph.D. advisor Mikelis G. Bickis: Paul Erdos - Kaipillil Vijayan - J. N. K. Rao - J. G. Kovar - Mikelis G. Bickis - Xikui Wang.

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Peer Refereed Articles

1. Wendy M. Fallis, Kathy Hamelin, Xikui Wang and Jackie Symonds, A Multi-Method Approach to Evaluate Chemical Dot Thermometers for Oral Temperature Measurement. Journal of Nursing Measurement 14 (2006) (to appear)
2. Yanqing Yi and Xikui Wang, Goodness-of-fit test for response adaptive designs, Statistics and Probability Letters (to appear)
3. Jeffrey S. Pai, Kevin J. Shand and Xikui Wang, Compound Poisson Model with Covariates: a Case Study, North American Actuarial Journal (to appear)
4. Wendy M. Fallis, Kathy Hamelin, Jackie Symonds and Xikui Wang, Maternal and Newborn Outcomes Related to Maternal Warming During Cesarean Section Delivery, Journal of Obstetric, Gynecologic, and Neonatal Nursing (JOGNN) - to appear.
5. Xikui Wang and Mik Bickis, One-armed bandit models with continuous and delayed responses, Mathematical Methods of Operations Research 58 (2) 209 - 219 (2003). Cited in MathSciNet and in SCI - Science Citation Index
6. Jawaid Younus, Ian Simpson, Alison Collins and Xikui Wang, Mind Control of Menopause, Women's Health Issues 13, 74-78 (2003). Cited in PubMed and in SCI - Science Citation Index
7. Xikui Wang, Asymptotic Properties of Bandit Processes with Geometric Responses, Statistics and Probability Letters 60, 211-217 (2002). Cited in MathSciNet and in SCI - Science Citation Index
8. Xikui Wang, Monotonic Approximation of the Gittins Index, Markov Processes and Controlled Markov Chains, (Edited by Zhenting Hou, Jerzy A. Filar, and Anyue Chen), Chapter 22, 363-367 (2002). Cited in MathSciNet
9. Xikui Wang, Bandit Processes and Applications, Mathematics in Economics 18, 39-48 (2001). Cited in MathSciNet
10. Xikui Wang and Daryl Pullman, Play-the-winner Rule and Adaptive Designs of Clinical Trials, International Journal of Mathematics and Mathematical Sciences 27 (4), 229 - 236 (2001). Cited in MathSciNet
11. Daryl Pullman and Xikui Wang, Adaptive Designs, Informed Consent, and the Ethics of Research, Controlled Clinical Trials 22 (3), 203 - 210 (2001). Cited in PubMed and in SCI - Science Citation Index
12. Xikui Wang, Convergence Rate of Conditional Expectations, Scientiae Mathematicae Japonicae (formerly Mathematica Japonica) 53 (1), 83 - 87 (2001). Cited in MathSciNet
13. Xikui Wang, A Bandit Process with Delayed Responses, Statistics and Probability Letters 48, 303-307 (2000). Cited in MathSciNet and in SCI - Science Citation Index
14. Shou-Ching Tang, Nadine Shaheta, Garry Chernenko, Mohmoud Khalifa, and Xikui Wang, Expression of BAG-1 in Invasive Breast Carcinomas, Journal of Clinical Oncology 17 (6), 1710-1719 (1999). Cited in PubMed and in SCI - Science Citation Index
15. Xikui Wang, Completeness of the Set of Sub-sigma-algebras, International Journal of Mathematics and Mathematical Sciences 16 (3), 511-514 (1993). Cited in MathSciNet
16. Keith F. Taylor and Xikui Wang, A Metric Space Associated with a Probability Space, International Journal of Mathematics and Mathematical Sciences 16 (2), 277-282 (1993). Cited in MathSciNet
17. Xikui Wang, A Remark on Finite Horizon Markov Decision Processes, Mathematics in Economics 5, 76-80 (1988).

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Manuscripts submitted to Peer Refereed Journals

1. Xikui Wang and Yanqing Yi, An Optimal Investment-Consumption Model with Stochastic Returns.
2. Yanqing Yi, Xikui Wang and Kaiji Liao, Optimal Portfolio with Nonparametric Learning.
3. Xikui Wang and Yan Wang, Optimal Investment-Consumption Decisions with Stochastic Dividends.
4. Xikui Wang, Dynamic Pricing with a Poisson Bandit Model.
5. David C. Tolusso and Xikui Wang, A Note on the Allocation Probabilities of the Randomized Play the Winner Rule.
6. David C. Tolusso and Xikui Wang, Statistical Inference for the Randomized Play the Winner Rule.
7. Xikui Wang, Jeffrey S. Pai and Kevin J. Shand, A Semi-Markov Model of Disease in Insured Dogs.
8. Xikui Wang, Stochastic Order and Bandit Processes.
9. Alan Lipson, Wendy M. Fallis, Yanqing Yi and Xikui Wang, An Assessment of Lipid Levels in Patients Presenting to a Community Hospital with Acute Myocardinal Infarction or Acute Coronary Syndrome.

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Invited Talks

1. Xikui Wang, Bandit Problems and Adaptive Clinical Trials, Invited Talk at the Workshop on Adaptive Designs at the Fields Institute, Canada (2003).
2. Xikui Wang and Daryl Pullman, Adaptive Designs of Clinical Trials, Invited Talk at the Statistical Society of Canada 99 Annual Meeting at Regina, Canada (Session 8, Biostatistics: Adaptive Clinical Trials)(1999).
3. Xikui Wang, Data-dependent Allocations of Treatments in Sequential Clinical trials, Invited seminar at the Department of Public Health Sciences, University of Alberta, Canada (1995).
4. Mik G. Bickis and Xikui Wang, Bandit Processes and Clinical trials, Invited Seminar at Carleton University, Canada(1991).

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Conference organized

1. Together with Dr. Alexandre Leblanc and Dr. Saumen Mandal (from the Department of Statistics), and Dr. Lisa Lix from the Department of Community Health, we are organizing the Fourth UM Statistics Research Workshop at the University of Manitoba, from August 4 to 6, 2004.
2. I was the co-organizer (together with Dr. Dean Slonowsky) for The Third Annual Statistics Workshop, held in the Department of Statistics, University of Manitoba, on July 24 and 25, 2002. It was a successful event with 12 presentations on both biostatistics and probability and over 30 participants.

Conference presentations and seminars

1. Wang X, Wang Y, Yi Y, Optimal portfolio selection and dynamic allocation index Presented by X Wang at the 12th INFORMS/APS conference in Beijing, P R China (2004).
2. Wang X, Yi Y, Liao K, Portfolio selection and Markov decision processes Presented by Yi at the 12th INFORMS/APS conference in Beijing, P R China (2004).
3. Yi Y, Wang X, Portfolio selection and Markov decision processes Presented by Yi at the SSC Annual Conference in Montreal, Canada (2004).
4. Wang Y, Wang X, Optimal portfolio selection among risky assets Presented by Wang Y at the SSC Annual Conference in Montreal, Canada (2004).
5. Younus J, Simpson I, Collins A, and Wang X, Hypnosis, Hot flashes and Quality of life: Mind over Matter? Presented at the Canadian Association of Medical Oncologists Annual Meeting in Montreal, Quebec (2002).
6. Xikui Wang, Structural Properties of Bandit Problems, Presented at the Fifth ICSA International Conference at the University of Kong Kong (2001).
7. Xikui Wang, Structural Properties of a Bandit Process, Presented at SSC'2001 Annual Meeting at Simon Fraser University, B.C., Canada (2001).
8. Xikui Wang, Adaptive Designs of Clinical Trials, Presented at ICSA Applied Statistics Symposium at Washington, D.C., USA (1999).
9. Xikui Wang, Monotonic Approximation of the Gittins Index, Presented at the International Workshop on Markov Processes and Controlled Markov Chains, Changsha, P.R. China (1999).
10. Xikui Wang and Daryl Pullman, Adaptive Clinical trials - Ethics and Statistics, Seminar at the Division of Community Health, Memorial University of Newfoundland, Canada (1999).
11. Xikui Wang, Bandit Problems - Optimal design of Experiments, Seminar at the Department of Mathematics and Statistics, Memorial University of Newfoundland, Canada (1998).
12. Mik G. Bickis and Xikui Wang, Clinical Trials as a Measure-valued Process, Presented at the International Biometric Conference at Hamilton, Canada (1994).
13. Mik G. Bickis and Xikui Wang, Optimal Sequential Selections with Censored Data, Presented at the Statistical Society of Canada 93 Annual Meeting at Wolfville, Canada (1993).

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Consulting Projects

1. Clinical Protocol for a Multicentre, Double-blind, Randomized, Parallel Group, Endoscopic Study Comparing the Upper Gastrointestinal Effect of Arthrotec (R) 75 Bid and Arthrotec (R) 50 Bid Taken for 26 Weeks in Patients with Osteoarthritis of Knee or Hip. Original Protocol Number IN2-97-02-361 (Revision 2): Statistical Consideration. Searle Canada Inc. (July 1998 at PharmaTEC Global Inc.).
2. Switching Psychotic Patients to Olanzapine: An Open-label Naturalistic Pilot Study. Statistical Consideration. Eli Lilly and Company (January 1998 at PharmaTEC Global Inc.).
3. Schizophrenia Statistical Analysis. Zeneca Pharma Inc. (December 1997 at PharmaTEC Global Inc.).
4. A Phase IIIb Long Term Safety Study of SEROQUEL (R) in Schizophrenia Patients: Canadian Multicentre, Open-label, Six Month Prospective Study of Oral Administration of SEROQUEL (R): Statistical Consideration. Zeneca Pharma Inc. (October 1997 at PharmaTEC Global Inc.).
5. Statistical Analysis of a Phase III Clinical Trial for Evaluating Economic Efficacy of Seroquel and Neuroleptics for Schizophrenia. Zeneca Pharma Inc. (September 1996 at PharmaTEC Global Inc.).

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Research Team

Post-Doctoral Fellow:
• Dr. Defen Peng (2002.4.1 - 2003.3.31) worked on mathematical finance and biostatistics
Graduate Students
• Kwardo Kwarteng (M. Sc. 2002.9 - 2003.7, co-advisor: Dr. Dean Slonowsky) Practicum: "A statistical study of anesthetic use in total knee replacement" (Practicum supervised by Dr. Slonowsky), approved on July 30, 2003. Upon graduation: Employed at the Alberta Health and Wellness
• Heather Prior (M. Sc. 2002.1 - 2003.6) Thesis: "The randomized play the winner rule in adaptive clinical trials", approved on June 26, 2003. Upon graduation: Employed at the Manitoba Centre for Health Policy
• David Tolusso (M. Sc. 2003.5 - 2004.7) "Statistical inference for the randomized play-the-winner design", approved on July 30, 2004. Upon graduation: Ph.D. candidate in Statistics, University of Waterloo.
• Yan Wang (M. Sc. 2002.9 - 2004.5) "Bandit models for investment-consumtion decisions", approved on May 19, 2004. Upon graduation: PhD candidate in the Department of Finance, Asper School of Business, University of Manitoba.
• Yanqing Yi (M. Sc. 2002.9 - 2004.5) "Markov decision models for the investment-consumption problem", approved on May 17, 2004. Upon graduation: to be my PhD student.
• Tony Tze Chung Wu (M. Sc. 2002.9 - 2005.8) "A new algorithm for sequence alignment", approved on August 25, 2005.
• Yanqing Yi (Ph.D. 2004.9 - ) Research related to biostatistics: adaptive designs of clinical trials, statistical inference
• Michelle Huimin Lu (M.Sc. 2005.9 - ) Research tentatively related to biostatistics
• Xuan Li (M. Sc. 2006.1 - ) Research tentatively related to mathematical finance
Undergraduate Student
• David Tolusso (NSERC Summer Research 2002.5 - 2002.8)

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Research Grants

1. Xikui Wang, "Statistical evaluation of health care outcomes from response adaptive clinical trials", Health Sciences Centre Foundation (Winnipeg, Manitoba), September 1, 2004 - August 31, 2005, $25000 ($25,000/year)
2. Xikui Wang, Natural Sciences and Engineering Research Council (NSERC) of Canada, 2003-2007, $50000 ($12,500/year)
3. Xikui Wang, Natural Sciences and Engineering Research Council (NSERC) of Canada, 1999-2003, $46200 ($11,550/year)
4. Wendy Fallis (Principal Investigator), Xikui Wang and Others (Co-Investigators), A randomized control trial to evaluate maternal and newborn outcomes related to maternal warming (active versus passive) prior to and during Cesarean section, Health Sciences Centre Foundation, University of Manitoba, 2003-2004, $16,800.95
5. Xikui Wang, University (of Manitoba) Research Grants Program, $6250 (January - December 2002)
6. Xikui Wang, Start-up Fund, Faculty of Science, University of Manitoba, $15000 (July 2000 - March 2001)
7. Xikui Wang, Faculty of Medicine R and D Grant, Memorial University of Newfoundland, $6000 (January 1999 - June 2000)

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