Geoscience Reference
In-Depth Information
4
General Conclusion
4.1. Summary
4.1.1. Contributions to the access by geographic content to textual corpora
Thepropositionsdiscussedinthepreviouschapterstargetthespatial,temporaland
thematic dimensions in the process of information retrieval (IR) in general and, more
particularly,theaccesstotextualcorporainwhichthespatialandtemporaldimensions
are strongly represented.
In the works of published literature relative to the geographic IR, we have mainly
taken interest in the following challenges:
1) the recognition and resolution of spatial and temporal named features;
2) the spatial and temporal indexing for purposes of IR;
3) thematchingofdocument/querycouplesandthecalculationofrelevancescores
devoted to spatial IR on the one hand and temporal IR on the other hand;
4) the multicriteria IR combining the spatial, temporal and thematic dimensions;
5) the evaluation of such IR systems.
The objective of T2I team of the laboratory of LIUPPA is the “Processing of
spatial, temporal and thematic information for the adaptation of interaction to the
context and the user”. The extraction and interpretation of spatial and temporal
information contained within textual documents is the center of these concerns. The
contribution of the team thus concerns the processes aiming at the recognition and
semantic analysis of such information in texts in order to build the corresponding
annotations. It also concerns the proposition of symbolic spatial and temporal data
representation models necessary for this recognition, interpretation and
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