Professor of Statistics

Ph.D. in Statistics, Columbia University, 1981

Website

Research Interests

• Sequential Inference
• Function Estimation
• Optimal Stopping
• Adaptive Methods

Honors and Appointments

• Fellow, Institute of Mathematical Statistics
• Fellow, American Statistical Association
• Chair, Department of Statistics, 1995-2000
• LAS Dean's Award for Excellence in Undergraduate Teaching (2001)
• Campus Award for Excellence in Undergraduate Teaching (2001)
• Associate Editor, Annals of Statistics (2001-2006)
• Associate Editor, Sequential Analysis (1994-)

Selected Publications

• Using stopping rules to bound the mean integrated squared error in density estimation. Annals of Statistics 20 (1992), 797-806.
• (with Y.C. Chang) Fixed size confidence regions for parameters of logistic regression models. Annals of Statistics 20 (1992), 1953-1969.
• (with Yi Xu) Sequential confidence bands for densities. Annals of Statistics 23 (1995), 2218-2240.
• (with Yi Xu) Fixed width confidence bands for densities under censoring. Statistics and Probability Letters 30 (1996), 257-264.
• (with S. Kundu) Bounding the L1 distance in nonparametric density estimation. Annals of the Institute of Statistical Mathematics 49 (1997), 57-78.
• (with S. Kundu) Using a stopping rule to determine the size of the training sample in a classification problem. Statistics and Probability Letters 37 (1998), 19-27.
• Fixed precision estimation in the Koziol-Green random censorship model. Statistics and Decisions 16 (1998), 389-407.
• Sequential estimation of the maximum in a model for corrosion data. Annals of the Institute of Statistical Mathematics 52 (2000), 646-657.
• Sequential estimation of the mean in a random coefficient autoregressive model with beta marginals. Statistics and Probability Letters 51 (2001), 53-61.
• Estimation of the maximum and minimum in a model for bounded, dependent data. Statistics and Probability Letters 56 (2002), 381-393.
• Reliable inference for the maximum pit depth within pitting colonies on long pipelines. Corrosion 59 (2003), 1058-1063.
• (with Y.C. Chang) Sequential approaches to data mining. In Applied Sequential Methodologies, ed. N. Mukhopadhyay, S. Datta, S. Chattopadhyay (2004), 85-103.
• (with A. Kemball) Bootstrap resampling as a tool for radio-interferometric imaging fidelity assessment. The Astronomical Journal 129 (2005), 1760-1775.
• The contributions of Robert A.Wijsman to sequential analysis. Sequential Analysis 25 (2006), 3-18.
• (with S.V. Panno, W.R. Kelly, and K.C. Hackley) Estimating background and threshold nitrate concentrations using probability graphs. Ground Water 44 (2006), 697-709.
• Discussion on “Sequential design and estimation in heteroscedastic nonparametric regression” by Sam Efromovich. Sequential Analysis 26 (2007), 27-28.