Recently research on imitation and its role in social cognition has been flourishing across various disciplines. After briefly reviewing these developments under the headings of behavior, subpersonal mechanisms, and functions of imitation, I advance the shared circuits hypothesis. This hypothesis about subpersonal functional architecture describes a unified… (More)
According to an infl uential view, one function of mirror neurons (MNs), fi rst discovered in the brain of monkeys, is to underlie third-person mindreading. This view relies on two assumptions: the activity of MNs in an observer ' s brain matches (simulates or resonates with) that of MNs in an agent ' s brain and this resonance process retrodictively… (More)
When working interactively on the computer, it is valuable to be able to undo a series of commands in order to return to a previous state. We identify contradictions and limitations in the basic concepts of undo. We examine the characteristics of undo, explain these limitations, and explore the requirements for more general recovery facilities.
Learning techniques can be applied to help information retrieval systems adapt to users' spe-ciic needs. They can be used to learn from user searches to improve subsequent searches. This paper describes the approach taken to learn about particular users' contexts in order to improve document ranking produced by a probabilistic information retrieval system.… (More)
The RESearch Queueing Package Modeling Environment (RESQME) is a system which provides an integrated, graphics-oriented, performance evaluation workstation environment for constructing, maintaining, revising and evaluating performance models of resource contention systems. In this paper we discuss examples illustrating its use and emphasize the iterative… (More)
In this paper, we describe a system which applies an evidence combination approach for the retrieval of photographs from large repositories. To achieve eeective retrieval we use features derived from various components (such as text, and image) of the photographic document. As photographic features we use spatial features, which are objects and their… (More)