4 papers
Scattering theory for difference equations with operator coefficients
David Sher, Luis Silva, Boris Vertman +1
We consider a second order difference equation with operator-valued coefficients. More precisely, we study either compact or trace class perturbations of the discrete Laplacian in…
Developing and Analyzing Boundary Detection Operators Using Probabilistic Models
David Sher
Most feature detectors such as edge detectors or circle finders are statistical, in the sense that they decide at each point in an image about the presence of a feature, this paper…
Appropriate and Inappropriate Estimation Techniques
David Sher
Mode {also called MAP} estimation, mean estimation and median estimation are examined here to determine when they can be safely used to derive {posterior) cost minimizing estimates…
Towards a Normative Theory of Scientific Evidence
David Sher
A scientific reasoning system makes decisions using objective evidence in the form of independent experimental trials, propositional axioms, and constraints on the probabilities of…