G. Wahba, Colleagues and Students - TR's and MSS

Listed in reverse chronological order by date of original TR or mss, since mid 1993. Later journal citations added where applicable. Thus, a paper which appeared in a journal in 1995 would be listed under 1993 if the original TR was dated 1993. Revisions listed with the original.

Citations of earlier papers here.

`Golden Oldies'- pdf files of some old, unpublished TR's/ hard to find papers.

2008

W. Shi, G. Wahba, S. Wright, K. Lee, R. Klein and B. Klein. " LASSO-Patternsearch Algorithm with Applications to Ophthalmology and Genomic Data " revision of TR1141r, February, 2008. To appear, Statistics and Its Interface(SII).

2007

Shi, W., Lee, K., and Wahba, G. " Detecting Disease Causing Genes by LASSO-Patternsearch Algorithm " BMC Proceedings 2007 1 (Suppl 1) S60.

Cho, S.-H. and Chun, H. " Visualizing Abnormal Climate Changes in Central America From 1995 to 2000 " TR 1138, March, 2007. Long version of the poster in TR1128 that won first prize in Data Expo 2006.

Wahba, G. " Statistical Learning in Medical Data Analysis " TR 1136, February 21, 2007. In Handbook of Statistics: Epidemiology and Medical Statistics, C. R. Rao, J. Philip Miller and D. C. Rao, Eds. Elsevier, 679-711, 2007.

2006

Carew, J. " Statistical Methods for Magnetic Resonance Images " TR 1133, December, 2006. PhD. Thesis.

Wahba, G. Comments to "Support Vector Machines With Applications" by J. M. Moguerza and A. Munoz. In Statistical Science 2006, 21, 347-351

J. D. Carew, C. G. Koay, G. Wahba, A. L. Alexander, M. E. Meyerand and P. J.Basser " The Asymptotic Behavior of the Nonlinear Estimators of the Diffusion Tensor and Tensor-Derived Quantities with Implications for Group Analysis. " TR 1132, November, 2006.

Shi, W., Wahba, G., Wright, S., Lee, K., Klein, R., and Klein, B. " LASSO-Patternsearch Algorithm with Application to Ophthalmalogy Data. " TR 1131, October, 2006.

Cho, S.-H. and Chun, H. " Visualizing Abnormal Climate Changes in Central America From 1995 to 2000 - Data Expo 2006 " TR 1128, August, 2006. Congrats to Sang-Hoon Cho and Hyonho Chun who won First Prize in the Data Expo 2006 Competition at JSM2006 for this poster.

Lu, F. " Regularized Nonparametric Logistic Regression and Kernel Regularization " TR 1124, July, 2006. PhD. Thesis.

Lu, F., Keles, S., Lin, Y., Wright, S. and Wahba, G. " Kernel Regularization and Dimension Reduction " TR 1119, April, 2006. Congrats to Fan Lu who the "Best Student Paper Award", ASA Statistical Computing and Graphics Sections, JSM2006 for this long abstract. Fan Lu also won the International Biometric Society's Eastern North American Region (ENAR) Distinguished Student Paper Award (2006) for his contributions in Lu, Keles, Wright and Wahba (2005) below .

Xie, X., Chung, M., and Wahba, G. " Magnetic Resonance Image Segmentation With Thin Plate Spline Thresholding " TR 1105, February, 2006.

2005

Lu, F., Lin, Y., and Wahba, G. " Robust Manifold Unfolding with Kernel Regularization " TR 1108, October, 2005.

Xie, X. " Some Smoothing in Magnetic Resonance Image Analysis and A hybrid Loss for Support Vector Machine. " TR 1110, August 2005. PhD. Thesis.

Lu, F., Keles, S., Wright, S., and Wahba, G. Framework for Kernel Regularization With Application to Protein Clustering. Proceedings of the National Academy of Sciences, 102(2005) 12332-12337. Open access.

Lu, F., Hill, G., Wahba, G., and Desiati, P. " Signal Probability Estimation with Penalized Likelihood Method on Weighted Data. " TR 1106, March, 2005. Has appeared in Statistica Sinica 16, 459-470 (2006).

Carew, J., Wahba, G., Koay, C., Wu, Y., Alexander, A. and Meyerand, M. E. " Automatic Classification of High Angular Resolution Diffusion Data. " TR 1103, February, 2005. Accepted for oral presentation at the International Society for Magnetic Resonance in Medicine (ISMRM) 13th Scientific Meeting, Miami Beach May 2005.

2004

Leng, C. " Some Problems in Model Selection. " TR 1094, July 2004. PhD. Thesis.

Yuan, M. " Automatic Smoothing and Variable Selection via Regularization. " TR 1093, July 2004. PhD. Thesis.

Leng, C., Lin, Y., and Wahba, G. " A Note on the LASSO and related procedures in model selection " TR 1091r, April, 2004 as revised December 2004. Has appeared in Statistica Sinica, 16 (4), 1273-1284 (2006).

Hoffmann, T., Chung, M., Dalton, K., Alexander, A., Wahba, G., and Davidson, R. " Subpixel curvature estimation of the corpus callosum via splines and its application to autism. (html) " 2004. Accepted for presentation at the 10th Annual meeting of the Organization for Human Brain Mapping.

2003

Carew, J., Dalal, R., Wahba, G., and Fain, S. " Estimating Arterial Wall Shear Stress (pdf) " TR 1088, December 2003. Part I accepted for presentation at ISMRM12, Kyoto. Student travel award to John Carew to present part I. In Proc.Intl. Soc. Mag. Reson.Med. 11, 1924 (2004).

Hill, G., Lu, F., Desiati, P., and Wahba, G. " Optimizing the limit setting potential of a multivariate analysis using the Bayes posterior ratio. (pdf) " November, 2003. Has appeared in the Proceedings of PHYSTAT2003 at SLAC.

Yuan, M, and Wahba, G. " Doubly Penalized Likelihood Estimator in Heteroscedastic Regression (ps) " (pdf) TR 1084rr, October 2003, revised February 2004, In Statistics and Probability Letters, 69 11-20 (2004).

Yuan, M. " Automatic Smoothing for Poisson Regression (ps) " (pdf) TR 1083, October, 2003, has appeared in Commun. Stat. Theor. Meth. 34, 603-617, (2005).

Wahba, G., Lin, Y., Lee, Y., Zhang, H., Nychka, D. and Wong, W. TR 1080 " The 2003 Wald Lectures, with discussion. (html) "

Wahba, G. " Reproducing Kernel Hilbert Spaces - Two Brief Reviews " TR 1079, April 2003. Has appeared in the Proceedings of the 13th IFAC Symposium on System Identification, 2003, 549-559.

Lee, Y., Wahba, G. and Ackerman, S. " Classification of Satellite Radiance Data by Multicategory Support Vector Machines " TR 1075, February 2003.Congrats to Yoonkyung Lee who won the best "Student" poster at the 2003 American Meteorological Society in the Satellite Meteorology and Oceanography session, on this work.Revised version here in Journal of Atmospheric and Oceanic Technology (JTECH), 21, 159-169 (2004)

2002

Lin, Y., and Zhang, H. " Component Selection and Smoothing in Smoothing Spline Analysis of Variance Models " TR 1072, November 2002, rev Jan 2003.

Wahba, G. " Soft and Hard Classification by Reproducing Kernel Hilbert Space Methods (ps) " (pdf) TR 1067, October 2002. In Proceedings of the National Academy of Sciences, 99, 16524-16530 (2002).

Zhang, H. " Nonparametric Variable Selection and Model Building Via Likelihood Basis Pursuit " TR 1066, September 2002. PhD. Thesis.

Lee, Y., Lin, Y. and Wahba, G. " Multicategory Support Vector Machines, Theory, and Application to the Classification of Microarray Data and Satellite Radiance Data " TR 1064, September 2002. OSU TR 714 This Sept 2003 Ohio State TR is a revision which contains further results concerning the relation of other multicategory methods to the Bayes rule. Has appeared in J. Amer. Statist. Assoc, 99, 465 (2004) 67-81. Lead paper in the Theory and Methods section.

Lee, Y. " Multicategory Support Vector Machines, Theory, and Application to the Classification of Microarray Data and Satellite Radiance Data " TR 1063, September 2002. PhD. Thesis.

Zhang, H., Wahba, G., Lin, Y., Voelker, M., Ferris, M., Klein, R. and Klein, B. Variable Selection and Model Building via Likelihood Basis Pursuit (ps) (pdf) TR 1059r. March 2003. Revised and expanded version of TR 1059, July, 2002. Congrats to Hao Helen Zhang who won a 2003 Laha Travel Award to present her work at JSM. Has appeared in J. Amer. Statist. Assoc. 99 (2004) 659-672

Carew, J., Wahba, G., Xie, X., Nordheim, E., and Meyerand, M. Optimal Spline Smoothing of fMRI Time Series by Generalized Cross-Validation (pdf) TR 1058, June 2002. In NeuroImage 18, 950-961, 2003.

Lee, Y. and Lee, C.-K. Classification of Multiple Cancer Types by Multicategory Support Vector Machines Using Gene Expression Data. (ps) (pdf) TR 1051, April 2002, minor revisions July 2002, has appeared in Bioinformatics, 19 (2003) 1132-1139.

2001

Wahba, G., Lin, Y., and Leng, C. Penalized Log Likelihood Density Estimation via Smoothing-Spline ANOVA and ranGACV - Comments to Hansen and Kooperberg `Spline Adaptation in Extended Linear Models' (ps) (pdf) TR 1048, December 2001, Invited Comments. In Statistical Science 17:33-37, 2002.

Wahba, G., Lin, Y., Lee, Y. and Zhang, H. " Optimal Properties and Adaptive Tuning of Standard and Nonstandard Support Vector Machines " TR 1045, October 2001. In Nonlinear Estimation and Classification, Denison, Hansen, Holmes, Mallick and Yu, eds, Springer, 125-143, 2002. (Supercedes TR 1039).

Zhang, H., Wahba, G., Lin, Y., Voelker, M., Ferris, M., Klein, R. and Klein, B. " Variable Selection via Basis Pursuit for Non-Gaussian Data " TR 1042, October 2001. In Proceedings of the ASA Joint Statistical Meetings, 2001.

Lee, Y, Lin, Y. and Wahba, G. " Multicategory Support Vector Machines " TR 1043, September, 2001. Long version of TR 1040. In Computing Science and Statistics 33, The Interface Foundation.

Lee, Y, Lin, Y. and Wahba, G. " Multicategory Support Vector Machines (Preliminary Long Abstract) " TR 1040, July 2001.

Wahba, G., Lin, Y., Lee, Y. and Zhang, H. " On the Relation Between the GACV and Joachims' \xi\alpha Method for Tuning Support Vector Machines, With Extension to the Nonstandard Case " TR 1039, June 2001.

2000

Wahba, G. " (Smoothing) Splines in Nonparametric Regression. " TR 1024, September 2000. In Encyclopedia of Environmetrics, A. El-Shaarawi and W. Piegorsch, Eds., Wiley, 4:2099-2112, 2001.

Lin, Y., Wahba, G., Zhang, H., and Lee, Y. " Statistical Properties and Adaptive Tuning of Support Vector Machines. " TR 1022, September 2000. Has appeared in Machine Learning, 48, 115-136, 2002.

Wahba, G. " An Introduction to Model Building With Reproducing Kernel Hilbert Spaces (Interface 2000 Shortcourse overheads). " TR 1020, April 2000.

Lin, Y., Lee, Y., and Wahba, G. " Support Vector Machines for Classification in Nonstandard Situations " TR 1016, March 2000. Has appeared in Machine Learning, 46, 191-202, 2002.

Wahba, G." Generalization and Regularization in Nonlinear Learning Systems. " Has appeared in the second edition of the Handbook of Brain Theory and Neural Networks Michael Arbib, Ed., The MIT PRESS, 2002, pp 470-474.

1999

Gao, F. " Iterated ranGACV: a Computational Proxy for the Comparative Kullback-Leibler Distance " TR 1011, July 1999.

Chiang, A., Wahba, G., Tribbia, J., and Johnson, D. R. " Quantitative Study of Smoothing Spline-ANOVA Based Fingerprint Methods for Attribution of Global Warming " TR 1010, July 1999.

Gao, F., Wahba, G., Klein, R. and Klein, B. " Smoothing Spline ANOVA for Multivariate Bernoulli Observations, With Application to Ophthalmology Data " TR 1009, July 1999. Slightly revised version in J.Amer.Statist. Assoc. 96 (2001) 127-160, with discussion.

Wahba, G., Lin, Y. and Zhang, H. " Generalized Approximate Cross Validation for Support Vector Machines, or, Another Way to Look at Margin-Like Quantities " TR 1006, April 1999. Expanded version of TR1006 posted here February 1999. (With revisions) in `Advances in Large Margin Classifiers, Smola, Bartlett, Scholkopf and Schurmans, eds., MIT Press (2000), 297-309.

Gao, F. " Penalized Multivariate Logistic Regression With a Large Data Set " 1999, Ph.D. Thesis.

1998

Wahba, G. " Adaptive Tuning, Four Dimensional Variational Data Assimilation, and Representers in RKHS " TR 1000, November 1998. Has appeared in `Diagnosis of Data Assimilation Systems', Proceedings of a Workshop held at ECMWF. European Centre for Medium-Range Weather Forecasts, Reading, England, March 1999, 45-52.

Lin, X., Wahba, G., Xiang, D., Gao, F. Klein, R. and Klein, B. " Smoothing Spline ANOVA Models for Large Data Sets With Bernoulli Observations and the Randomized GACV " TR 998, September 1998. Long version of TR 997. Slightly revised version in Ann. Statist. 28 (2000) 1570-1600.

Wahba, G., Lin, X., Gao, F., Xiang, D., Klein, R. and Klein, B. " The Bias-Variance Tradeoff and the Randomized GACV " TR 997, Septemter 1998. In Advances in Neural Information Processing Systems 11, M. Kearns, S. Solla and D. Cohn, Eds, MIT Press (1999) pp 620-626.

Wahba, G. " Comments to Chong Gu, `Model Indexing and Smoothing Parameter Selection in Nonparametric Function Estimation' " Statistica Sinica 8, 1998, 632-638.

Lin, X. " Smoothing Spline Analysis of Variance for Polychotomous Response Data " December 1998, Ph.D. Thesis. (TR 1003)

1997

Wang, Y. and Wahba, G. " Comments to Brumback and Rice, `Smoothing Spline Models for the Analysis of Nested and Crossed Samples of Curves' " J. Roy. Stat. Soc. B 93, 976-980 (1998).

Wahba, G. " Support Vector Machines, Reproducing Kernel Hilbert Spaces and the Randomized GACV " " typos " TR 984rr, July 1998. (Second revision of version of November 1997). In `Advances in Kernel Methods - Support Vector Learning', Sch\"olkopf, Burges and Smola (eds.), MIT Press 1999, 69-88.
Xiang, D., and Wahba, G. " Approximate Smoothing Spline Methods for Large Data Sets in the Binary Case " TR 982, September 1997. In the Proceedings of the 1997 ASA Joint Statistical Meetings, Biometrics Section, 94-98(1998)
Luo, Z. , Wahba, G, and Johnson, D. R. " Spatial-Temporal Analysis of Temperature Using Smoothing Spline ANOVA " J. Climate 11, 18-28 (1998).

1996

Luo, Z. " Backfitting in Smoothing Spline ANOVA "Penn State Statistics Dept TR 96-05 October, 1996.
Wang, Y. " Mixed-Effects Smoothing Spline ANOVA " TR 967, August 1996, JRSS B, 60, 159-174 (1998).
Wang, Y. " Smoothing Spline Models With Correlated Random Errors " TR 966, August 1996, JASA 93, 341-348 (1998).
Luo, Z. " Backfitting in Smoothing Spline ANOVA, With Application to Historical Global Temperature Data " TR 964, July 1996. PhD. Thesis
Gong, J., Wahba, G., Johnson, D. R., and Tribbia, J. " Adaptive Tuning of Numerical Weather Prediction Models: Simultaneous Estimation of Weighting, Smoothing and Physical Parameters " TR 963, July 1996, slightly revised version Monthly Weather Review 126, 210-231 (1998).
Xiang, D. " Model Fitting and Testing for Non-Gaussian Data with a Large Data Set " TR 957, January 1996. PhD. Thesis

1995

Wang, Y., Wahba, G., Gu, C., Klein, R. and Klein, B. " Using Smoothing Spline ANOVA to Examine the Relation of Risk Factors to the Incidence and Progression of Diabetic Retinopathy " Statistics in Medicine, 16, 1997, pp. 1357-1376.
Xiang, D. and Wahba, G. " Testing the Generalized Linear Model Null Hypothesis versus "Smooth" Alternatives. " TR 953, October 1995.
Wahba, G. and Luo, Z. " Smoothing Spline ANOVA Fits for Very Large, Nearly Regular Data Sets, with Application to Historical Global Climate Data" TR 952, October 1995. Slightly revised version in Annals of Numerical Mathematics 4 (1997) 579-598. (Festschrift in Honor of Ted Rivlin, C.Micchelli, Ed.)
Luo, Z. and Wahba, G. " Hybrid Adaptive Splines" TR 947, June 1995, slightly revised version has appeared in J. Amer. Statist. Assoc., 92, 1997, pp. 107-116. "here"
Wang, Y. " Odds Ratio Estimation in Bernoulli Smoothing Spline ANOVA Model" TR 946, April 1995, has appeared in The Statistician, 46, 1997, 49-56
Wang, Y. "GRKPACK: Fitting Smoothing Spline ANOVA Models for Exponential Families." TR 942, January 1995. Documentation for GRKPACK. The GRKPACK code is in ~wahba/ftp1/software/grkpack.shar.gz

1994

Wahba, G., Wang, Y., Gu, C., Klein, R. and Klein, B. " Smoothing Spline ANOVA for Exponential Families, with Application to the Wisconsin Epidemiological Study of Diabetic Retinopathy." May 1995, Ann. Statist. 23 (1995), 1865-1895. Expanded and slightly revised version of TR 940, December 1994. This paper was the basis for the Neyman Lecture given at the Annual Meeting of the Institute of Mathematical Statistics at Chapel Hill 1994, delivered by the first author.

Xiang, D. and Wahba, G. " A Generalized Approximate Cross Validation for Smoothing Splines with Non-Gaussian Data." TR 930, September 1994, slightly revised version, " Statistica Sinica, 6, 1996, pp.675-692.

Wahba, G., Wang, Y., Gu, C., Klein, R. and Klein, B. " Structured Machine Learning for `Soft' Classification with Smoothing Spline ANOVA and Stacked Tuning, Testing and Evaluation. " In `Advances in Neural Information Processing Systems 6, J. Cowan, G. Tesauro and J. Alspector, Eds., 1994, Morgan Kauffman, pp. 415-422.

Wahba, G." Generalization and Regularization in Nonlinear Learning Systems. " TR 921, May, 1994. In the Handbook of Brain Theory and Neural Networks, Michael Arbib, Ed, The MIT PRESS, 1995, pp. 426-430.

Wahba, G., Johnson, D. R., Gao, F. and Gong, J. " Adaptive tuning of numerical weather prediction models: Part I: randomized GCV and related methods in three and four dimensional data assimilation." TR 920, April 1994. Short version Monthly Weather Review, 123 (1995), 3358-3369, under the title `Adaptive Tuning of Numerical Weather Prediction Models: Randomized GCV in Three-and Four-Dimensional Data Assimilation.

Wang, Y. and Wahba, G. " Bootstrap Confidence Intervals for Smoothing Splines and their Comparison to Bayesian Confidence Intervals." TR 913, January 1994, slightly revised version in J. Statistical Computation and Simulation, 51 (1995) 263-279.

1993

Wahba, G. and Wang, Y." Behavior near zero of the distribution of GCV smoothing parameter estimates." TR 910, December 1993. Has appeared in Statistics and Probability Letters, 25 (1995) 105-111.

Gao, F."On Combining Data from Multiple Sources with Unknown Relative Weights." TR 894 (Rev), February 1993. Revised version appears in Commun. Statist. T heor. Meth., 23, 1994, pp. 1665-1698, as `Fitting smoothing splines to data from multiple sources with unknown relative weights'

Wahba, G., Gu, C., Wang, Y. and Chappell, R. " Soft Classification, a.k.a. Risk Estimation, via Penalized Log Likelihood and Smoothing Spline Analysis of Variance. " TR 899, January 1993. (Some typographical errors corrected on October 11, 1993.) In `Computational Learning Theory and Natural Learning Systems', Volume 3, T. Petsche, Ed, MIT Press pp. 127-158. Reprinted in `The Mathematics of Generalization', D. Wolpert, Ed., Santa Fe Institute Studies in the Sciences of Complexity, Proc. Vol. XX, Addison-Wesley, pp. 329-360, 1995.

Gu, C., and Wahba, G. " Smoothing Spline ANOVA with Componennt-Wise Bayesian `Confidence Intervals' "JCGS, 2, 1993, pp. 97-117.

Gu, C., and Wahba, G. " Semiparametric Analysis of Variance with Tensor Product Thin Plate Splines "JRSS B 55, 1993, 353-368.