Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Ontology creation, extraction, and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Discussion forum n.1 Chair: Anita Liang

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 The AOS/CS Workbench Support and manage the multi-language terminology work of information management specialists in the development, maintenance, and quality assurance of the AOS/CS

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 The AOS/CS Workbench Features –Text processing –Corpus Creation –Corpus Analysis –Term/Relationship Management –Quality Assurance –Versioning and Deployment

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005.doc,.pdf,.xml, etc. Concept Hierarchy input AOS/CS Workbench concordance pattern-matching multilingual text corpus

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool features: Text Processing Capabilities Multilingual Font support for Chinese and Arabic at minimum, also Lao, Thai Other –Entity extraction –POS tagging –Parsing

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool Features: Corpus Creation and Maintenance Spidering tools ( source-web-crawlers-java/view) Document input and storage –.doc,.pdf,.html,.xml Text extraction ( Domain-specific repositories –specifiable: agriculture, chemistry –combine and remove

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool Features: Corpus Analysis Text file management –Add/delete files –Add/delete Directories –Add/delete URLs Search: –Word (or part-word) or phrase; string, regular expression, tag search –Number of hits –Case (in)sensitive Display: –hide keyword option –toggle between a KWIC format and sentence mode Sorting –1L (First Left), 1R, 2L, 2R, as well as by search word and by text order; –primary and secondary sorts (e.g., first right, then first left). Frequency information –display in alphabetical or frequency order of words Collocates –Search collocates of spans from 1L-1R to 4L-4R –Collocate highlighting Output: The concordance results can be saved to a file and/or printed. Pattern-matching with pattern language Other: pattern-matching using POS tags, parallel text concordancing

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool Features: Automatic KOS Search Specify online KOS URLs Automatic suggested parent and placement within hierarchy

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool Features: Term/Relationship Management Modifications (AGROVOC Maintenance Tool) –term add delete edit –relationship add delete edit Machine learning (Annotation Tool) –wordnet –agrovoc itself –other thesauri Batch/bulk modifications based on patterns and structure (rules-as-you-go)

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 AOS/CS Workbench

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool Features: Versioning and deployment –CVS-type system to check out and check in changes –Administrator-level functionalities for publishing versions –Language-level versioning

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Tool Features: Quality Assurance Logging and reporting of user actions Confirmation/verification of user actions User rights management Ownership

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Technical Platform Details Centralized relational database backend –local and remote databases? –is there need for (1) referential integrity, triggers, etc. or (2) can we get by with publishing and storage (1): PostgreSQL (2): MySQL Web-based GUI Distributed client-server architecture Java-based Scalability and performance for network –web services

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Workshops & Training Promote the Workbench Contact AGROVOC center of excellence Nominate AGROVOC managers Organize workshop Organize training

Food and Agriculture Organization of the UN Library and Documentation Systems Division July 2005 Ontologies creation, extraction and maintenance 6 th AOS Workshop Vial Real (Portugal) July 2005 Discussion points Tools (workbench) Modeling concept / term / string Concepts vs instances Knowledge representation language (OWL, SKOS) Update it ’ s a problem?