This dissertation considers a suite of search problems in which agents are trying to find goals in minimum expected time. Unlike search in data structures in which time is measured by a number operations, search in metric spaces measures time by units of distance and has received much less attention. In particular, search strategies that attempt to minimize expected search time are only availab...

I wish I had read this book when I had begun my own research into the Dutch 1960s some ten years ago. With its broad overview of developments in the Netherlands in the first decades after the Second World War, I found reading the book, a decade later, an invaluable learning experience, contributing to the broadening of my own vistas in Dutch postwar history. There were many details I enjoyed re...

Wit is a system infrastructure that supports wireless connection of palmtop computers to a wired local area network (LAN). The system includes a primitive windowing system, nonpreemptive threads, reliable and unreliable connections, and a Tcl interpreter[Ouster94] that allows applications to dynamically extend the palmtop system and user interface by downloading sequences of Tcl code. Together,...

Developers of new image analysis algorithms typically require an interactive environment in which the image data can be passed through various operators, some of which may involve feedback, synchronization, merging and conditional control strategies. This paper describes the requirements of visual languages for developing new algorithms , and how several visual languages meet these requirements...