User Generated Content - Data Collection, Processing and Interpretation.- A Mobile Application for a User-Generated Collection of Landmarks.- Leveraging VGI for Gazetteer Enrichment: A Case Study for Geoparsing Twitter Messages.- Measuring Crowd Mood in City Space Through Twitter.- Representation and Interaction: Generalization, Visualization, and Mobility On-Demand Generalization of Guide Maps with Road Networks and Category-Based Web Search Results.- Compass-Based Navigation in Street Networks.- A Web-Based Steam Assisted Gravity Drainage (SAGD) Data Visualization and Analytical System.- SpatioTemporal Trajectories and Navigation Spatial Selectivity Estimation for Web Searching.- A Semantic-Based Data Model for the Manipulation of Trajectories: Application to Urban Transportation.- Spatiotemporal Behavior Profiling: A Treasure Hunt Case Study.- Computational Approaches, Algorithms and Architectures Spatial Interpolation of Streaming Geosensor Network Data in the RISER System.- Opportunistic Trajectory Recommendation for Task Accomplishment in Crowdsourcing Systems.- G2P: A Partitioning Approach for Processing DBSCAN with MapReduce.