In our daily lives, we make a wide variety of decisions. One major distinction that has been made is between perceptual decisions and value-based (economic) We argue this ill-defined, because these vary on multiple dimensions. present an alternative way to categorize decisions, based two dimensions: subjective versus objective criteria, evaluation stimulus representation. experimentally study t...

Goals to acquire information, or knowledge goals, are common in the real world but have been largely ignored in the eld of classical planning. This paper argues that they arise out of the need to make decisions in an unpredictable world, and describes a planner, Cassandra, that embodies this approach. Previous work on knowledge goals has concentrated on logics that can be used to represent them...