The CERIF-2000 and Vocabularies

Andrei LopatenkoVienna University of Technologyhttp://derpi.tuwien.ac.at/~andrei

Problems. Examples. The CERIF-2000 Standard Publications types 'abstract','bibliography','biography','book','book

chapter', 'conference paper','conference

proceedings','correspondence', 'dictionary','directory','dissertation','duplicate

publication', 'editorial','encyclopedia','errata','guideline','index','int

erview', 'journal article','lecture', 'meta-

analysis','miscellaneous', 'monograph','multimedia','news','overall','patent','rep

ort','review' , 'standard','textbook','translation','twin study'

Problems. Examples. UiB (real CRIS) publication types

http://www.ub.uib.no/avdeling/fdok/demo/UK2001/classifikasjon.htm

Two level hierarchy The first level. Seven terms The second level. About 50 terms The same situation in Austria Vocabularies dictated by real requirement

to the CRIS from researchers, policy-makers, university administration

Research topics, expertise skills

In the CERIF-2000 ORTELIUS and others vocabularies are suggested to use

Real needs of researchers – AMS, national vocabularies and others

And what to do?

Why different vocabularies for the same data

Different societies and policies, focusing on different aspects or interested in different details

Different states by historical and other reasons

When vocabulary used?

In information retrieval operations Search by vocabulary terms Browse by hierarchy

Reports, analysis, evaluation, visualization (usually some statistical calculations)

Information input

What we need As usual every CRIS has own target

audience. That audience defines vocabulary used

But some CRIS should be compatible. Data should be able to be exported to EU bodies and problem of “domains” – in this case vocabularies should be solved.

The CERIF-2000 should specify how to use custom vocabulary for CRIS audience need and remain compatible with other CERIF CRIS (future, ERIS network?)

Other advantages Such framework also will be useful for some

CRIS with data sharing. Some CRIS has several different audiences.

And each uses own vocabulary for the same data. Creating multi vocabulary CRIS can be implementation guideline-help for CRIS developers

Example: publication types – researchers and university administration (only statistical weights of publications), national and international audience foe the same CRIS

So what we need

Framework and application which Built, evolve and store different

vocabularies of different types Specify meaning of vocabulary for

classifying which information it can be used

Specify intervocabulary relations (mappings)

What we need

Framework and application which(operational stage) Perform domain transformation

(vocabulary mapping) in export/import operations - short term goal

Perform domain transformation (vocabulary mapping) in informational retrieval operations

How to implement

Several possible ways Simple database descriptions of

vocabularies and their mappings More complicated, as example,

Description Logics descriptions of the vocabularies and mappings

Database implementation

Easy to implement Easy to develop vocabulary creation,

supporting, mapping definition tools More or less easy to implement

transformation tools But very bad in expressing meaning

of terms, terms definitions

Database implementation

Impossible to specify attribute definition of terms Example: “EU Project” is a “Project”

which “funding organization” is a “fund” of EU or Euro Commission

Hard to measure information lacks…

Database implementation But already implemented and can be part

of CERIF-2000 free implementation Currently MS ASP application, better JSP

or more open standard

Screenshot. Vocabulary development

Screenshot. Intervocabulary mappings

Description Logic

Much more powerful in taxonomies and mapping descriptions

But need very special experience and knowledge (some logical theories, languages)

Not directly database integrated, as usual terms are not stored in database

Description Logics.

DAML + OIL can make situation not so hard?

Possibly, yes, should be investigated in EU project

Very important for European wide CRIS

Summary

We can propose free tools for CERIF CRIS developers

And when we get feedback situation will be more clear

Need to get EU project and solve vocabulary problems