cnes activities on semantic search
DESCRIPTION
CEOS WGISS 35 - Sao Jose dos Campos, Brazil - 2013.05.07 Overview of CNES activities on semantic searchTRANSCRIPT
![Page 1: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/1.jpg)
Jérôme Gasperi
CNES activities on semantic search
CEOS WGISS-35INPE - Sao Paulo dos Campos, Brazil - May 7th, 2013
![Page 2: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/2.jpg)
Semantic searchLinked Data
Faceted search
![Page 3: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/3.jpg)
Semantic searchHelp users to find the right data
![Page 4: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/4.jpg)
AMMA CYCLOPES GEOLAND
GLOBCOVER PARASOL POLDER
....
![Page 5: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/5.jpg)
AMMA CYCLOPES GEOLAND
GLOBCOVER PARASOL POLDER
....
Land coverSoil moistureTemperatureReflectance Vegetation
...
![Page 6: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/6.jpg)
How ?
![Page 7: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/7.jpg)
Tag metadata at the product level with keywords related to the project or mission namee.g. search for "Land cover" products instead of "GLOBCOVER"
![Page 8: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/8.jpg)
Use Exogeneous data to characterize product content.The product footprint should be use for automatic processing - e.g. toponyms extraction with OpenStreetMap
![Page 9: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/9.jpg)
ExampleUsing Global Land Cover 2000 to automatically characterize product thematic content
![Page 10: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/10.jpg)
Global Land Cover (GLC 2000)
![Page 11: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/11.jpg)
Thematic sliders
SPOT cover - 1,300,000 scenes
![Page 12: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/12.jpg)
Search for coastal cultivated area ?
![Page 13: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/13.jpg)
Search results(footprints displayed in black over the map)
Coastal cultivated area
![Page 14: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/14.jpg)
Thematic classificationis displayed within
the result metadata
costal...
...cultivated area
![Page 16: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/16.jpg)
Linked dataAchieve multidisciplinary interoperability
![Page 17: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/17.jpg)
« Linked data is the right way to do Semantic Web »Tim Berners-Lee
![Page 18: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/18.jpg)
The Graph of Idea - www.griffsgraphs.com
![Page 19: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/19.jpg)
Faceted searchBreak the hierarchy of search filters
![Page 20: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/20.jpg)
Web search paradigms
Taxonomy search(e.g. Yahoo! Directory)
Direct search(e.g. google)vs.
![Page 21: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/21.jpg)
Faceted search
Taxonomy search(e.g. Yahoo! Directory)
Direct search(e.g. google)+
(a sort of)
![Page 22: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/22.jpg)
« 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
![Page 23: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/23.jpg)
Classification to be ordered in multiple ways
![Page 24: CNES activities on semantic search](https://reader035.vdocuments.net/reader035/viewer/2022062710/559c992c1a28ab5a5f8b4624/html5/thumbnails/24.jpg)