EnTag Feb 2008 CETIS

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Information about EnTag Feb 2008 CETIS

Published on February 13, 2008

Author: cetismdrsig

Source: slideshare.net

Description

Presentation of the EnTag project by Kora Golub at the JISC CETIS MDR SIG meeting on 2008-02-12

UKOLN is supported by: EnTag: Enhanced Tagging for Discovery Koraljka Golub, UKOLN CETIS MDR SIG, Birkbeck, 12 February 2008

Project context Partners UKOLN University of Glamorgan STFC Intute Non-funded OCLC Office of Research, USA Danish Royal School of Library and Information Science Period: 1 Sep 2007 -- 31 Aug 2008

Partners

UKOLN

University of Glamorgan

STFC

Intute

Non-funded

OCLC Office of Research, USA

Danish Royal School of Library and Information Science

Period: 1 Sep 2007 -- 31 Aug 2008

Background Controlled vocabularies improve information retrieval and discovery But, costly to index with, especially the amount of digital documents Social tagging holds the promise of reducing indexing costs But, tags entirely uncontrolled Still, may identify new trends and hot concepts

Controlled vocabularies improve information retrieval and discovery

But, costly to index with, especially the amount of digital documents

Social tagging holds the promise of reducing indexing costs

But, tags entirely uncontrolled

Still, may identify new trends and hot concepts

Purpose Investigate the combination of controlled and folksonomy approaches to support resource discovery in repositories and digital collections Aim Investigate whether use of an established controlled vocabulary can help move social tagging beyond personal bookmarking to aid resource discovery

Investigate the combination of controlled and folksonomy approaches to support resource discovery in repositories and digital collections

Aim

Investigate whether use of an established controlled vocabulary can help move social tagging beyond personal bookmarking to aid resource discovery

Objectives Investigate indexing aspects when using only social tagging versus when using social tagging in combination with a controlled vocabulary Investigate above in two different contexts: tagging by readers and tagging by authors Investigate influence of only social tagging versus social tagging with a controlled vocabulary on retrieval

Investigate indexing aspects when using only social tagging versus when using social tagging in combination with a controlled vocabulary

Investigate above in two different contexts: tagging by readers and tagging by authors

Investigate influence of only social tagging versus social tagging with a controlled vocabulary on retrieval

Overall approach Main focus: free tagging with no instructions versus tagging using a combined system and guidance for users Two demonstrators Intute digital collection http://www.intute.ac.uk Major development Tagging by reader DDC STFC repository http://epubs.cclrc.ac.uk/ Complementary development Tagging by author

Main focus:

free tagging with no instructions

versus

tagging using a combined system and guidance for users

Two demonstrators

Intute digital collection http://www.intute.ac.uk

Major development

Tagging by reader

DDC

STFC repository http://epubs.cclrc.ac.uk/

Complementary development

Tagging by author

Intute demonstrator: searching

Intute demonstrator: basic tagging

Intute demonstrator: enhanced tagging

EnTag: Intute user study (I) Test: comparison of basic and advanced system: Indexing Perspective, specificity, exhaustivity Linguistics (word class, single word/compound, spelling, language ) Consistency Efficiency (time used, user satisfaction) Use (tags selected, clouds consulted, order of consultation) Retrieval Degree of match between user and system terminology user tags, DDC tags, controlled Intute keywords, title terms, text terms

Test: comparison of basic and advanced system:

Indexing

Perspective, specificity, exhaustivity

Linguistics (word class, single word/compound, spelling, language )

Consistency

Efficiency (time used, user satisfaction)

Use (tags selected, clouds consulted, order of consultation)

Retrieval

Degree of match between user and system terminology

user tags, DDC tags, controlled Intute keywords, title terms, text terms

EnTag: Intute user study (II) Test setting 50 graduate students in political science 100 documents, covering up to four topics of relevance for the students Data collection Logging Pre- and post-questionnaires

Test setting

50 graduate students in political science

100 documents, covering up to four topics of relevance for the students

Data collection

Logging

Pre- and post-questionnaires

EnTag: More info Results > August 2008 http://www.ukoln.ac.uk/projects/enhanced-tagging/

Results > August 2008

http://www.ukoln.ac.uk/projects/enhanced-tagging/

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