Places

Changing places

The announcement this spring followed months of speculation: Kim Nasmyth will assume the Whitley Chair of Biochemistry at the University of Oxford at the start of 2006, taking over from Ed Southern. Nasmyth is presently Director of the Institute of Molecular Pathology (IMP) in Vienna and is well known for his work on the yeast cell cycle and chromosome segregation (for more details see Curr. Bi...

Relative places

Distributed Places

Distributed Places bring new support for distributed, message-passing parallelism to Racket. This paper gives an overview of the programming model and how we had to modify our existing, runtime-system to support distributed places. We show that the freedom to design the programming model helped us to make the implementation tractable. The paper presents an evaluation of the design, examples of ...

Changing Places

By allowing any social institution to structure activity in any place, wireless information services break down the traditional mapping between institutions and places. This phenomenon greatly complicates the analysis of context for purposes of designing context-aware computing systems. Context has a physical, architectural aspect, but most aspects of context will also be defined in institution...

Finding Popular Places

Widespread availability of location aware devices (such as GPS receivers) promotes capture of detailed movement trajectories of people, animals, vehicles and other moving objects. We investigate spatio-temporal movement patterns in large tracking data sets, i.e. in large sets of polygonal paths. Specifically, we study so-called ‘popular places’, that is, regions that are visited by many entitie...