Using RSS to Share KOS Metadata

Margherita Sini, FAO 1 / 19

http://www.fao.org/aims/

Using RSS to Share KOS Metadata

Margherita Sini, Gauri SalokheIV Ecoterm

Vienna, Austria17-18 April 2007



Outline• KOS metadata

– Situation at FAO– KOS Metadata– Taxonomy of KOS– RSS formats– Proposals

• KOS– Access to KOS– Multi-KOS access– Desirable Services for KOS



KOS metadata



KOS Registry at FAO

Also:SUGGEST

AKOS



KOS Metadata• Minimum set of multilingual information:

– Name– Acronym– Domain– Owner/Creator– Languages in which it is available– Type– Format (proposed)– Note– URL (access point)– Email– Usage (? to discuss)



• Term Lists – Authority Files (e.g., LC Name Authority File) – Glossaries (e.g., Glossary of Aquaculture Terms)– Gazetteers – Dictionaries (e.g., Dictionnaire d'agriculture)

• Classification and Categorization – Subject Headings (e.g. Medical Subject Headings MeSH) – Classification Schemes, Taxonomies and Categorization Schemes (e.g.

Dewey– Decimal Classification DDC, scientific taxonomies)

• Relationship Schemes (better: relational schemes) – Thesauri – Semantic Networks (e.g. WordNet, part of UMLS) – Ontologies

Taxonomy of KOS



Extended Taxonomy of KOS• Application Profile

• Authority file/list

• Classification Scheme/System

• Concept Map

• Controlled List

• Dictionary

• DTD

• Fact Sheet

• Gazetteer

• Glossary

• Lexical Database

• Metadata Schema

• Ontology

• Reference Table

• Subject headings

• Taxonomy

• Terminology Database

• Thesaurus

• Topic Map/Tree

• Encyclopedia



FR AR ZH ES EN

Description

Profilsd’applIcation

أشكال الت

طبيقات /

سماتالتطبيق

应用纲要

Perfiles de Aplicación

Application Profile

Application profiles are defined as schemas which consist of data elements drawn from one or more namespaces, combined together by implementers, and optimized for a particular local application.

Fichiers d’autorité

ملفات رسمية

规范文档

Archivos de autoridades

Authority file/list

An authority file is a tool used to establish forms of names (for persons, places, meetings, and organizations), titles, and subjects used on bibliographic records and thus provides uniform access to materials.

Schemas de clasSification

خططالتصنيف 分类表

Esquemas de clasificación

ClassificAtionScheme/System

Classification systems/schemes have been used by libraries to arrange materials by subject. Dewey Decimal System, AGRIS Subject Categories are two such examples.



RSS formats• RSS 0.91: (2000) original format, evolved in

RSS 0.92– <channel>, <item>

• RSS 2.0: (2002), evolution of 0.92, simple with additional elements; modular– <comments>, <author>, <ttl>, <guid>

• RSS 1.0: W3C official format, RDF-compliant, extensible, namespace support

• Atom 1.0 (RDF)



Example

Use existing namespaces



Proposals (1/2)• Define a KOS metadata standard – Keep it simple so

that everyone will follow• Define namespaces (only if necessary); preferably reuse• Harmonization of KOS “types”

– its all in the name, for example, “Taxonomy for Plants” is Type “Taxonomy”

– if not, make type definitions clear

• Make KOS available online with permanent URL– Make them available through web services

– Make them available in several formats• e.g. Simple Knowledge Organization System (SKOS)



Proposals (2/2)• Feed creator (e.g. http://www.fao.org/aims/tools/metamaker.jsp)

• Build RSS feeds

• Build RSS aggregators– filtering for domains: e.g. GFIS

• KOS-Blog (expose via RSS)

• Mobile Feeds



Decentralized approach

A new classification scheme ...The AGROVOC thesaurus ....

GEMET is now available...The UNESCO Thesaurus...

..list of terms used in subject.... synonyms.... availability...

.....synonyms rings and .....

A new classification scheme ...The AGROVOC thesaurus ....................

FAO RSS Feeds

........GEMET is now available...........

UNEP RSS Feeds

The UNESCO Thesaurus.....list of terms used in subject.........

UNESCO RSS Feeds

.....

.... synonyms.... availability...

.....synonyms rings and .....

.... other RSS ....

RSS Aggregator



Example



KOS



KOS Navigation



Multi-KOS search



Desirable Services for KOS• Access available KOS

– Visualize– Filter– Search & Retrieve

• Analyze type and structure– Represent in different formats

• Add in registries– Exchange– Share



[email protected]@fao.org

Questions?

Thank you

Economy & Finance

Using RSS to Share KOS Metadata