Managing Sensor Data Uncertainty: A Data Quality Approach

The Problem Of Sensor Data Quality

For years, data quality characterizes a key problem for all kind of organizations (Wang & Strong, 1996). Actually, emerging applications in geospatial domain and manipulating sensor data also reveal this important issue. Considering monitoring as a primary key on environmental crisis management systems, an early and reliable detection of critical events is crucial for systems achievement. Environmental monitoring thus requires an efficient acquisition of information coming from sensors (spread over large areas), an interpretation of complex observation patterns at different temporal and spatial scales, as well as reliable and understandable results. These facts led us to wonder: how to evaluate and provide users with quality information?