CYCLADES Kickoff 19/02/01

Gudrun Fischer, Norbert Fuhr

University of Dortmund (Germany)

CYCLADESAcess Service

CYCLADES Kickoff 19/02/01

Recommendation Service

Collaborative Work Service

Personalization Service

Query & Browse Mediator Service

Cyclades Mediator Service

Collection Service

Access Service

NDLTD. . .arXiv NCSTRL clinmed RePEc

CYCLADES Services

CYCLADES Kickoff 19/02/01

Services

Independent services + Cyclades Mediator ServiceFor each service:

- a well established access protocol

- a service description

CYCLADES Kickoff 19/02/01

Schemas

Collection names

Computer Science

Search fields

author, title, abstract

European Computer Science

author,title, abstract, country,language

Information Seeking

CYCLADES Kickoff 19/02/01

Schemas

Dublin Core as standard schema Flat structure All attributes set-valued

Collection-specific schemas Complex structures possible Require appropriate query language

CYCLADES Kickoff 19/02/01

Searching and Browsing

Schema

Metadata records

Attribute values

Multilevel Hypertext:

Search

Browse

CYCLADES Kickoff 19/02/01

Browsing

Multilevel Browse Schema level

DC, MARC, … Attribute value level

author’s name, author’s names orthographically similar to a given name, …

Document level result set sorted by date, grouped by archive, …

CYCLADES Kickoff 19/02/01

Background Technology

HyREX(Hypermedia Retrieval Engine for XML) Retrieval engine for XML documents Supports vagueness and imprecision

(vague predicates, term weighting, ranking)

OAI Gathering interface already implemented Used for German/European OAs EMPRESS,

PhysDoc