1. Introduction to the Special Issue

   • Dieter Pfoser
   • Isabel F. Cruz

   OriginalPaper 09 February 2006 Pages: 5 - 7

2. Utilizing Voronoi Cells of Location Data Streams for Accurate Computation of Aggregate Functions in Sensor Networks

   • Mehdi Sharifzadeh
   • Cyrus Shahabi

   OriginalPaper 09 February 2006 Pages: 9 - 36

3. Detecting Roads in Stabilized Video with the Spatio-Temporal Structure Tensor

   • Robert Pless

   OriginalPaper 09 February 2006 Pages: 37 - 53

4. An Ontology-Based Approach to Personalized Situation-Aware Mobile Service Supply

   • Norbert Weißenberg
   • Rüdiger Gartmann
   • Agnès Voisard

   OriginalPaper 09 February 2006 Pages: 55 - 90

5. Building and Querying a P2P Virtual World

   • Egemen Tanin
   • Aaron Harwood
   • Sarana Nutanong

   OriginalPaper 09 February 2006 Pages: 91 - 116

6. Errata

   OriginalPaper 09 February 2006 Pages: 117 - 117