OCLC Research: an update

OCLC Research:an update

Lorcan Dempseydempseyl@oclc.org

OCLC ResearchOCLC Research

• Mission

• Emphasis

• Perceptions

Systems and interaction design

Interoperability Managementintelligence

Metadatamanagement

Knowledgeorganization

Contentmanagement

Systems and interaction design

Interoperability

Dublin Core

ZING … SRU/SRW

IMS

OAI - PMH

Visualization Support

Management intelligenceManagement intelligence

Under constructionUnder construction

Explore how to support management decisions by making

better use of available data.

Interlibrary Loan StudyInterlibrary Loan Study

• Compare interlibrary loan borrowing patterns within a consortium

– Begin with OhioLink

• Compare netLibrary holdings to titles borrowed through interlibrary loan

Collection AssessmentCollection Assessment

• Analyze and compare aggregate WorldCat holdings for libraries

– ARL

– Academic, non-ARL

– Public

– Identify titles and their intellectual levels, subjects (using conspectus), and publishers

User Behavior StudyUser Behavior Study

• Identify how print book and eBooks are used

– Focus group interviews

– Individual interviews

– Transaction log analysis

Metadata switchMetadata switch

Under constructionUnder construction

Explore a set of services which add value to metadata by leveraging OCLC expertise and cooperative

processing model.

SOAP

Javascript /HTTP

Z39.50

RDN

gateway/portal

service

RDN

gateway/portal

serviceRDNGateway

E-prints UKE-prints UK

Institutional

e - print

archives

Personal

e - print

archives

OAI - PMH

E-Prints UK

Non - institutional

e - print

archives

Subject

classification

service

Name

authority

service

Citation

analysis

service

SOAP

Emerging technologies provide opportunities for new servicesEmerging technologies provide opportunities for new services

• Tools and features previously available only in integrated systems can now be provided as 'web services'

• “network accessible application components”

• “interoperable building blocks for constructing applications”

• “self-describing applications that can be discovered and accessed over the web by other applications”

• Technical definition– Web Services are a suite of protocols that define

how requests and responses between software applications should be encoded & transferred over the web

Aggregationand fusion

Schematransformation Names

Terminologyservices

Aggregation and fusionAggregation and fusion

• OAI

• Theses

• ??

• Fusion

Record enhancementRecord enhancement

Terminology servicesTerminology services

• Methods effective for print, unlikely to be the same techniques used for digital documents

• Need to determine role of knowledge organization (KO) resources in relation to new approaches

• Authority files

• Subject heading systems and thesauri

• Classification schemes

Terminology resources are currently embedded in systems & servicesTerminology resources are currently embedded in systems & services

• OCLC Connexion

– Provides access to several KO schemes & links among schemes

• Dewey, LCSH, Name authorities

– Automated application tools

• Harvest & record creation

• Classification

• Control of names, subjects, class numbers

Need more flexible, modular knowledge organization servicesNeed more flexible, modular knowledge organization services

• For example, one set of requirements:– Automatically check name and subject

authorities

– Automatically supply Dewey Decimal Classification numbers based on subject entries

– On-demand check of subject and name authorities in non-OCLC record sources

– Authorities notification service

– Improve record quality/completeness

Knowledge Organization ServicesKnowledge Organization Services

KOSchemes

NameAuthority

Files

DDC

LCSH

Classification•Auto-class•Number verification•Captions•Associated Terms•Updates

635.951

Authority Control•Auto-assign•Name/Subject validation•Associated Classes•Authorities notification

Record Enrichment•Classes•Subjects•Names•Summaries

OCLC Web Services DemoOCLC Web Services Demo

Rare and endangered animals

Rare and endangered species

Prototypes & Demonstration projects Prototypes & Demonstration projects

• Prototype

– LCCN Web Service Demo (previous slide)

• OCLC & Northwestern University

– DDC number verification for Cataloger's Toolkit for Voyager ILS

• eprints-UK

– OCLC will supply subject descriptions & name authorities as Web services for harvested resources

Schema transformation servicesSchema transformation services

• Accept metadata in one schema and return metadata in another schema

NamesNames

• Accept a name and return

– Authoritative version of the name

– Cluster of related names

Content managementContent management

Under constructionUnder construction

Make a leading contribution to the economic and engineering

issues facing the digital preservation community.

Digital preservationDigital preservation

• OCLC/RLG collaboration

• Moving from a consensus making phase to an implementation phase

• Real economic and engineering issues being addressed

EconomicsEconomics

• White paper

Digital preservation .. engineeringDigital preservation .. engineering

• Research fellow

• Digital coop