1,025 research outputs found
Infinite-range transverse field Ising models and quantum computation
We present a brief review on information processing, computing and inference
via quantum fluctuation, and clarify the relationship between the probabilistic
information processing and theory of quantum spin glasses through the analysis
of the infinite-range model. We also argue several issues to be solved for the
future direction in the research field.Comment: 13 pages, 6 figures, using svjour.cls, to appear in EPJ-Special
Topic
Modelling and estimation for random fields
Caption title.Includes bibliographical references (p. [21]-[22]).Supported by Air Force Office of Scientific Research. AFOSR-89-0276-C Supported by the Army Research Office. DAAL03-92-G-0115Sanjoy K. Mitter
Consistencies and rates of convergence of jump-penalized least squares estimators
We study the asymptotics for jump-penalized least squares regression aiming
at approximating a regression function by piecewise constant functions. Besides
conventional consistency and convergence rates of the estimates in
our results cover other metrics like Skorokhod metric on the space of
c\`{a}dl\`{a}g functions and uniform metrics on . We will show that
these estimators are in an adaptive sense rate optimal over certain classes of
"approximation spaces." Special cases are the class of functions of bounded
variation (piecewise) H\"{o}lder continuous functions of order
and the class of step functions with a finite but arbitrary number of jumps. In
the latter setting, we will also deduce the rates known from change-point
analysis for detecting the jumps. Finally, the issue of fully automatic
selection of the smoothing parameter is addressed.Comment: Published in at http://dx.doi.org/10.1214/07-AOS558 the Annals of
Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical
Statistics (http://www.imstat.org
On sampling methods and annealing algorithms
Includes bibliographical references (p. 12-14).Cover title.Research supported by the National Science Foundation. ECS-8910073 Research supported by the Air Force Office of Scientific Research. 89-0276B Research supported by the Army Research Office. DAAL03-86-K-0171Saul B. Gelfand and Sanjoy K. Mitter
- …