CNES activities on semantic search

CEOS WGISS 35 - Sao Jose dos Campos, Brazil - 2013.05.07

Overview of CNES activities on semantic search

Keywords: semantic search, EO, RDF, Linked Data

Transcript

1. Jérôme Gasperi CNES activities on semantic search CEOS WGISS-35 INPE - Sao Paulo dos Campos, Brazil - May 7th, 2013
2. Semantic search Linked Data Faceted search
3. Semantic search Help users to find the right data
4. AMMA CYCLOPES GEOLAND GLOBCOVER PARASOL POLDER ....
5. AMMA CYCLOPES GEOLAND GLOBCOVER PARASOL POLDER .... Land cover Soil moisture Temperature Reflectance Vegetation ...
6. How ?
7. Tag metadata at the product level with keywords related to the project or mission name e.g. search for "Land cover" products instead of "GLOBCOVER"
8. Use Exogeneous data to characterize product content. The product footprint should be use for automatic processing - e.g. toponyms extraction with OpenStreetMap
9. Example Using Global Land Cover 2000 to automatically characterize product thematic content
10. Global Land Cover (GLC 2000)
11. Thematic sliders SPOT cover - 1,300,000 scenes
12. Search for coastal cultivated area ?
13. Search results (footprints displayed in black over the map) Coastal cultivated area
14. Thematic classification is displayed within the result metadata costal... ...cultivated area
15. https://vimeo.com/51045597 !
16. Linked data Achieve multidisciplinary interoperability
17. « Linked data is the right way to do Semantic Web » Tim Berners-Lee
18. The Graph of Idea - www.griffsgraphs.com
19. Faceted search Break the hierarchy of search filters
20. Web search paradigms Taxonomy search (e.g. Yahoo! Directory) Direct search (e.g. google) vs.
21. Faceted search Taxonomy search (e.g. Yahoo! Directory) Direct search (e.g. google) + (a sort of)
22. « Faceted search enables users to navigate a multi- dimensional information space by combining text search with a progressive narrowing of choices in each dimension » http://en.wikipedia.org/wiki/Faceted_search
23. Classification to be ordered in multiple ways