Quality of Context: First International Workshop, QuaCon 2009, Stuttgart, Germany, June 25-26, 2009. Revised Papers.

Description

This book constitutes the thoroughly refereed post-conference proceedings of the first International Workshop on Quality of Context, QuaCon 2009, held in Stuttgart, Germany, in June 2009. The 11 revised papers presented were carefully reviewed and selected from 19 submissions and included in the volume together with 5 invited papers. Discussed are interdisciplinary approaches to context quality, such as models for degradation and consistency of context data, spatial ontologies and spatial data mining, trust in context data, methods and calculi for context quality assessment, frameworks and metrics for context quality, uncertainty in sensor data processing, quality-aware algorithms for context management, quality-aware event and stream processing, uncertainty in reasoning on context data, application-specific context quality and case studies, and visualization of context quality. Front Matter....Pages - Interacting with Context....Pages 1-14 The Quality of Geospatial Context....Pages 15-24 Context Quality and Privacy - Friends or Rivals?....Pages 25-40 Querying and Cleaning Uncertain Data....Pages 41-52 Spatial Embedding and Spatial Context....Pages 53-64 A Context Quality Model to Support Transparent Reasoning with Uncertain Context....Pages 65-75 On a Generic Uncertainty Model for Position Information....Pages 76-87 A Probabilistic Filter Protocol for Continuous Queries....Pages 88-97 Establishing Similarity across Multi-granular Topological–Relation Ontologies....Pages 98-108 UDS: Sustaining Quality of Context Using Uninterruptible Data Supply System....Pages 109-119 A Framework for Quality of Context Management....Pages 120-131 An Abstract Processing Model for the Quality of Context Data....Pages 132-143 Using Quality of Context to Resolve Conflicts in Context-Aware Systems....Pages 144-155 Presentation and Evaluation of Inconsistencies in Multiply Represented 3D Building Models....Pages 156-163 Bringing Quality of Context into Wearable Human Activity Recognition Systems....Pages 164-173 Quality Dependent Reconstruction of Building Façades....Pages 174-184 Back Matter....Pages -