1. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 1 Implementation of Semantic Network Dictionary System for Global Observation Data Shigenobu TACHIZUKA, Masahiko NAGAI, Ryosuke SHIBASAKI Center of Spatial Information Science the Univ. of Tokyo, JAPAN

2. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 2 An understanding and prediction of an earth system Distribution of abnormal weather, March 2002 average temperature(℃) Malnutrition Population China 21% India 25% Other Asia 20% Africa 23% South America 7% Middle and near East 4% abnormal weather, climate change, flood damages, water or food crisis Poverty, Health, Safety 

3. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 3 GEOSS 10 Years Plan Recommended Researches Management of life cycle data Data integration and Information fusion Data mining Network reinforcement Suitable planning Mutual management and Data system Development and Acquisition for Common data, metadata, and product. Processing, Analyzing, Visualizing for Huge and variety of data Sharing and distribution by Internet service Summit 2003,June Evian G8 Summit 2003,July Washington 1st Earth observation Summit 2004,April Tokyo 2nd Earth observation Summit 2005,Feburauary Brussels 3rd Earth observation Summit Global Earth Observation System of Systems (GEOSS ） : proposed an international cooperative attempt to gather accessible hardware and software for all of the nation.

4. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 4 GEOSS 10 Years Plan The global environment is lying on trans-disciplinary fields, including... GEOSS has begun to make efforts to supply data and information at no cost by collecting data, enhancing data distribution, and providing models for global environment. Hydrology Geography Biology Ecology Agriculture

5. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 5 Abnormal Weather / Climate Change / Wind & Flood Damage / Food & Water Crisis → Poverty ， Health ， Safety Understanding and Prediction of Earth system Create new Knowledge for Earth System Science For Social Needs Numerical prediction Flood prediction Cooperation with international Organizations Cooperation with international Organizations Metrological information Integrated use of data Agriculture management Dispersed use Prediction needs Integrated Information Centralized Data Integration & Fusion 1. data archive, storage, integration 2. data assimilation, visualization, mining 3. design for database schema 4. data collection and distribution 5. sensor data fusion Integration of Distributive Data 1. constriction of ontology registry 2. service by ontology registry 3. distinguished DB for agriculture 4. distinguished DB for satellite data Core System data Integrated Information Oceanic data Flood data Earth observation data Collection/quality management Cooperation with International Research Center Satellite data Ground observation data Cooperation with Earth Observation Plans Integration method Global Environmental Data Integration Project

6. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 6 DB DBDB 気象用語 biology term Landuse Classification schema Climatology Health Science Agriculture term Hydrology term 农业农业 เกษตร กรรม 농업 It is necessary to look over many fields and we have to understand many technical terms

7. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 7 DB DBDB 気象用語 农业农业 เกษตร กรรม 농업 To guarantee data quality or reliability. To understand Trans - disciplinary database by translation of heterogeneous “term” Health Science Climatology To know where data is and what format is, and to access to heterogeneous system. biology term Hydrology term Agriculture term Landuse Classification schema Development of Semantic Network Directory system (collection, comparison, editing etc.) Development of Ontology Service System by using Semantic Network Directory system

8. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 8 Framework for Semantic Network Dictionary Semantic Network Dictionary Created dictionary is registered to the system again. Clarifying ontological expression Visualizing relationship between terms  Providing reference information to users (2) Browse Modification of registered information on the system  newest information (3) Modification Collection and registration the semantics (1) Registration (4) Utilization Support of technical term Data Integration Constriction of data model Providing integrated information Utilizing as knowledge Information retrieval future work

9. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 9 Semantic Network Dictionary System To collect, manage, and compare ontological information such as data dictionaries, classification schemas, terminologies, and thesauri for the global observation data. Data sharing and data service such as support of metadata design, structuring of data contents, support of text mining is applied for better use of data to the semantic network dictionary system. As a trans-disciplinary dictionary including civil engendering, agriculture, classification schema, satellite observation data, and so on. We endeavor to add dictionaries and data model to the system by digitalizing text based dictionaries, developing “knowledge writing tool” for experts.

10. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 10 Searching Browsing Comparison Connecting Semantic Network System environment experts Semantic Network Dictionary System DB MediaWiki (Hydrology)MediaWiki (Agriculture)MediaWiki (Ecology) RDF modify resist where the site is located refer to semantics that is stored on each site

11. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 11 Network connecting terms in semantics Forest land in Thailand definition homonym Class Forest land in Indonesia definition Forest Land use map Global worming vegetation Agro-forest Wood land Plant type CO 2 Dictionary Validated model Document Law Code system Non-validated model Thesaurus Terminology Ontology Network development, from excising resource Network development, from excising resource

12. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 12 Data collection from existing dictionaries Geography Ecology Health Agriculture Remote Sensing Earth Science HydrologyEnvironment

13. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 13 Digitize from paper dictionaries Input to MediaWiki

14. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 14 Framework for Semantic Network Dictionary Semantic Network Dictionary Created dictionary is registered to the system again. Clarifying ontological expression Visualizing relationship between terms  Providing reference information to users (2) Browse Modification of registered information on the system  newest information (3) Modification Collection and registration semantics (1) Registration (4) Utilization Assist of Technical term Data Integration Constriction of data model Providing integrated information Utilizing as knowledge Information retrieval

15. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 15 Browsing by MediaWiki

16. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 16 Browsing of Semantic Network Dictionary System Link to MediaWiki Description Link to MediaWiki Editing page Link to another term information Get from each MediaWiki site via http Get semantic network from rdf statement (using Sesame)

17. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 17 Visualization of Semantic Network Users visualize the semantic information provided by the system.

18. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 18 Framework for Semantic Network Dictionary Semantic Network Dictionary Created dictionary is registered to the system again. Clarifying ontological expression Visualizing relationship between terms  Providing reference information to users (2) Browse Modification of registered information on the system  newest information (3) Modification Collection and registration semantics (1) Registration (4) Utilization Assist of Technical term Data Integration Constriction of data model Providing integrated information Utilizing as knowledge Information retrieval

19. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 19 Modification by using MediaWiki Users modify the semantic information by using MediaWiki.  We have not needed to develop the management function of editing history.

20. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 20 Network can grow! Forest land in Thailand definition homonym Class Forest land in Indonesia definition Forest Land use map Global worming vegetation Agro-forest Wood land Plant type CO 2 Dictionary Validated model Document Law Code system Non-validated model Thesaurus Terminology Ontology register users register The semantic network can grow by registration, addition, modification..  User can get new information. The semantic network can grow by registration, addition, modification..  User can get new information. experts register modification

21. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 21 Future Works Adding dictionaries to this system. –Developing “Knowledge Writing Tool” for experts continuously. (Extending MediaWiki) –Extracting semantic relations from authoritative documents with natural language processing technique. handbook encyclopedia Developing User Interface –more suitable for users Supporting for Diversification of clue –Miss spelling –Text and image verification for retrieval Retrieval assist by similar images

22. 2006-11-09/11 7th Agricultural Ontology Service Workshop @ Bangalore, India 22 Thank you for your attention. Shigenobu TACHIZUKA, Masahiko NAGAI, Ryosuke SHIBASAKI Center of Spatial Information Science the Univ. of Tokyo, JAPAN tachis@csis.u-tokyo.ac.jp