Semantic Correspondence in Federated Life Science Data Integration Systems

For execution of complex biological queries, data integration systems often use several intermediate data sources because the domain coverage of individual sources is limited. Quality of intermediate sources differs greatly based on the method used for curation, frequency of updates and breadth of domain coverage, which affects the quality of the results. Therefore, integration systems should provide data provenance; i.e. information about the path used to obtain every record in the result. Furthermore, since query capabilities of webaccessible sources are limited, integration systems need to support refinement queries of finer granularity issued over the integrated data. However, unlike the individual sources, integration systems have to handle the absence of data and conflicts in the integrated data caused by inconsistencies among the sources. This paper describes the solution proposed by BACIIS, the Biological and Chemical Information Integration System, for providing data provenanc...

• Type: Conference
• Year: 2005
• Where: DILS
• Authors: Malika Mahoui, Harshad Kulkarni, Nianhua Li, Zina Ben-Miled, Katy Börner
• Keywords: Data Sources, DILS 2005, Integrated Data, Integration System