Mohamed Amer — Graduate Student at OSU

Marine biologists commonly use underwater videos fortheir research on studying the behaviors of sea organisms.Their video analysis, however, is typically based on visualinspection. This incurs prohibitively large user costs, andseverely limits the scope of biological studies. There is aneed for developing vision algorithms that can address specificneeds of marine biologists, such as fine-grained categorizationof fish [...]

This is a theoretical paper that proves that probabilisticevent logic (PEL) is MAP-equivalent to its conjunctivenormal form (PEL-CNF). This allows us to address theNP-hard MAP inference for PEL in a principled manner.We first map the confidence-weighted formulas from a PEL knowledge base to PEL-CNF, and then conduct MAP inferencefor PEL-CNF using stochastic local search. Our [...]