Fall 2007 Thursday, October 4   Li-Shan Huang Department of Biostatistics University of Rochester "Incorporating Neighborhood Estimates in Nonparametric and Semiparametric Models" 3:00 Refreshments in 241 Schaeffer Hall 3:30 Talk in 140 Schaeffer Hall Local polynomial regression involves fitting a polynomial function over a small region whose midpoint is the target point x, and the estimated intercept is the resulting regression estimate at x. The information from the estimated slopes was somewhat lost since inference focuses on the intercepts. In this talk, we show that there are many advantages when incorporating both intercepts and slopes in local polynomial fitting for nonparametric and semiparametric models. The advantages include Analysis of Variance decomposition, symmetric and asymptotically idempotent smoothing matrix, penalized likelihood interpretation, and straightforward F-tests for nested models.

All talks are free and open to the public. To receive colloquium reminders via email, please send a request to statistics@uiowa.edu. The 37th Annual Craig Lectures will be on October 11 and 12. Our speaker this year is Nancy Reid from the University of Toronto. Past colloquia: Spring 2007 | Fall 2006 | Spring 2006 | Fall 2005 | Spring 2005 | Fall 2004 | Spring 2004 | Fall 2003 | Spring 2003 | Fall 2002 | Spring 2002 | Fall 2001 | Spring 2001 | Fall 2000 | Spring 2000 | Fall 1999 | Spring 1999 | Fall 1998 | Spring 1998

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