From h.ruymgaart@ttu.edu Tue Aug 23 08:28:33 2005 Date: Mon, 22 Aug 2005 15:07:07 -0500 From: Frits Ruymgaart To: J Stephen Marron Subject: Re: Senior position Dear Steve, My interest is -or was- in models where the data lie in a manifold . I have some papers (almost all jointly with Hendriks , Landsman , van Rooij , Janssen , Lee ) ,viz.: J.S.P.I.#23 , 45-52 (1989) ; Strong uniform convergence of density estimators on spheres. J. Statist. Pl. Inf. 23, 45-52 (1989) Proc. NATO-ASI conf. , Roussas , ed. , pp. 679-690 (1991) ; Regularized deconvolution on the circle and the sphere. In: Proc. NATO-ASI conference on Nonparametric Functional Estimation and Related Topics, Kluwer Ac. Publ., Dordrecht, pp. 679-690 (G. Roussas, ed., 1991). Co-author: A.C.M. van Rooij. Sankhya A#54 , 387-401 (1992) ; A CramÈr-Rao type inequality for random variables in Euclidean manifolds. Sankhya A 54, 387-401 (1992). Co-authors: H.W.M. Hendriks and J.H.M. Janssen. Statist. Prob. Letters#16 , 305-311 (1993) ; Strong uniform convergence of density estimators on compact Euclidean manifolds. Statist. Prob. Letters 16, 305-311 (1993). Co-authors: H.W.M. Hendriks and J.H.M. Janssen. J. Nonpar. Statist.#6, 57-68 (1996) ; Nonparametric curve estimation on Stiefel manifolds. Nonp. Statist. 6, 57-68 (1996). Co-author: J.M. Lee. J. Multivar. Anal.#59 , 141-152 (1996) ; # Asymptotic behavior of sample mean location for spheres. J. Multivar. An., 59, 141-152 (1996). Co-authors: H. Hendriks and Z. Landsman. Ann. Inst. Statist. Math.#53 , 781-798 ; Hendriks has an interesting paper on density estimation on Riemannian manifolds ( Ann. Statist.#18 , 823-849 (1990)) and other papers like one jointly with Healy and Kim (J. Multivar. Anal.#67 , 1-22 (1998) ) . Recently Peter Kim (who is also a geometer , like Hendriks ) is particularly interested in inverse problems on manifolds (Ann. Statist.#26 , 1083-1102 (1998) ; with Koo : J. Multivar. Anal.#80 , 21-42 (2002); with Richards : Contemp. Math.#287 , 155-171 (2001) ) . Deconvolution density estimation on SO(N), Peter T. Kim; 1083-1102 We have at Texas Tech here a new colleague, Victor Patrangenaru , born in Rumania and with a degree in prob./stat. from Indiana and a degree in geometry . He has a paper in one of the recent Annals with Rabi Bhattacharya on estimation of location on Riemannian manifolds . He has also papers in which geometry and statistics are used in certain imaging problems . Bhattacharya, R. and Patrangenaru, V. (2003) Large sample theory of intrinsic and extrinsic sample means on manifolds, Annals of Statistics, 31, 1-29 Also the French are working in this area , in particular Bruno Pelletier (regression on closed Riemannian manifolds (not yet published (?)) , and may be other things as well ) . There is a nice recent book by Jupp and Mardia . You should also look for these two authors. By the way , there will be a "Red Raider Minisymposium" (the fifth in succession ) here at Texas Tech , 17-19 November this year . The topic is something like "Geometry , Statistics , and Image Analysis " , organized by Victor Patrangenaru and Robert Paige . Participants are Kim , Beran , Bhattacharya , Butler , and some more people . This could be really of interest to you , and it would be very nice if you could come! I have asked Robert Paige to send you some further information . I hope this is of some help; if you need any further information , please let me know . I hope you can come in November. With best regards , Frits On Aug 2, 2005, at 12:47 PM, J Stephen Marron wrote: > Hi Frits, > Good to hear from you. I hope that things are going well for you. > Life is busy, but interesting, here. > > Also good to hear that Texas Tech has a new Distinguished > Professorship. Of course that brings up the challenge of finding the > right person (and their being willing to move). The main problem is > that > the people you want are generally pretty happy where they are. Perhaps > your best shot is an up and coming young person, perhaps recently > appointed to the rank of Full Professor, or for some other reason > willing > to consider a change. > > Here are some possibilities: > > 1. Jean Opsomer: up for promotion to Full Prof. at Iowa State. Has > been > doing some cool stuff relating smoothing to sruvey sampling. > > 2. Xuming He: just returning to U. Illinois, after a term as NSF > rotater. I feel that he matured a lot from his NSF experience, and is > ready to step into a serious leadership role. > > 3. Lijian Yang: Assoc. Prof. at Mich. State. He seems unhappy there, > and has been looking at other possibilities. I don't know where these > currently stand. > > > > > By the way, in poking about to find your email address, I noticed > that > you list "statistics on manifolds" as a research interest. Does this > mean > that you are thinking about likelihood estimation and the parameter > space > from this viewpoint (ala Barndorff-Neilsen)? Or do you mean the data > lie > in a manifold? If the latter, please send some references, as I am > currently quite interested in the area. > > > > Best, > Steve > > > >