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Information technology researchers usually examine collaboration in the context of specific tasks or functions. Normally presented from a system engineering approach, the implementation of geographic information systems (GISs) considers isolated functional and technical issues. This approach extricates organizational and institutional issues and emphasizes(More)
Given a set of GPS trajectories on a road network, the goal of the <i>k</i>-Primary Corridors (<i>k</i>-PC) problem is to summarize trajectories into <i>k</i> groups, each represented by its most central trajectory. This problem is important to a variety of domains, such as transportation services interested in finding primary corridors for public(More)