Berrahou L., Lalande N., Serrano E., Molla G., Berti-Equille Laure, Bimonte S., Bringay S., Cernesson F., Grac C., Ienco D., Le Ber F., Teisseire M. (2015). A quality-aware spatial data warehouse for querying hydrogeological data : case study. Computers and Geosciences, 85, p. 126-135. ISSN 0098-3004.
Titre du document
A quality-aware spatial data warehouse for querying hydrogeological data : case study
Berrahou L., Lalande N., Serrano E., Molla G., Berti-Equille Laure, Bimonte S., Bringay S., Cernesson F., Grac C., Ienco D., Le Ber F., Teisseire M.
Source
Computers and Geosciences, 2015,
85, p. 126-135 ISSN 0098-3004
Addressing data quality issues in information systems remains a challenging task. Many approaches only tackle this issue at the extract, transform and load steps. Here we define a comprehensive method to gain greater insight into data quality characteristics within data warehouse. Our novel architecture was implemented for an hydroecological case study where massive French watercourse sampling data are collected. The method models and makes effective use of spatial, thematic and temporal accuracy, consistency and completeness for multidimensional data in order to offer analysts a "€oedata quality"€ oriented framework. The results obtained in experiments carried out on the Saône River dataset demonstrated the relevance of our approach.
