Research Papers

Abstract Based on a weak convergence argument, we provide a necessary and sufficient condition that guar- antees that a nonnegative local martingale is indeed a…

Abstract A one-dimensional, continuous, regular, and strong Markov process X with state space E hits any point z ∈ E fast with positive probability. To…

Abstract 1. Introduction. It is a simple but very useful observation that a probabil- ity measure Q which is not absolutely continuous with respect to…

Abstract Let X be a progressively measurable, almost surely right-continuous stochastic process such that Xτ ∈ L1 and E = E for each finite stopping…

Abstract This note studies the martingale property of a nonnegative, continuous local martingale Z, given as a nonanticipative functional of a solution to a stochastic…

Abstract We provide an efficient and unbiased Monte-Carlo simulation for the com- putation of bond prices in a structural default model with jumps. The algorithm…

Abstract Supervised classification machine learning algorithms may have limitations when studying brain diseases with heterogeneous populations, as the labels might be unreliable. More exploratory approaches,…

Abstract A content-based image retrieval system based on multinomial relevance feedback is proposed. The system relies on an interactive search paradigm where at each round…