DSpace-Dev @ University of MinhoDevelopment of tools and add-ons for the DSpace platform

Miguel Ferreiramferreira@dsi.uminho.pt

Ana Alice Baptistaanalice@dsi.uminho.pt2n

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7-8 July 2005 

Papadocs

• The students repository– http://papadocs.dsi.uminho.pt

• Contains reports, assignments, learning materials, etc.

• Also served as a test bed for the developed add-ons

Commentary Add-on

• Threaded forum associated with any DSpace resource– Web-page, community, collection, item or e-

person

• Based on a graph instead of the most commonly seen tree-like fora – Users are allowed to comment one or more

resources with a single post

• Supports anonymous comments with or without revision

• Includes a custom-tag that summarises the most relevant comments in a subsection of DSpace

Commentary Add-on

Controlled Vocabulary Add-on

• Taxonomy based controlled vocabulary• Used to describe self-deposited items

(keywords)• Simplifies and enhances searching

– Increased precision and recall

• Enables the generalisation of concepts

• Support for multiple taxonomies • Easy to integrate new taxonomies

– Taxonomies described by independent XML files

• Can be enhanced to support more complex structures such as thesauri

Controlled Vocabulary Add-on

Recommendation Add-on

• Gives suggestions of related resources – items, e-persons e comments

• requires extra information– who downloaded what– new table on the database

• Three distinct recommendation algorithms– Item-based Top-N Filter– Social Information Filter (Word-of-Mouth)– Web of Communication Filter

Recommendation Add-on

Web of Communication Add-on

• Exposes invisible relationships between resources in a 3D network

• Possibility of switching between the text mode and the 3D interface

• Requires a VRML plug-in to be installed on the client’s browser

Teia de comunicação

A look into the Future

• Integration of add-ons with the official DSpace source code (in progress)

• Improve the Controlled Vocabulary Add-on to support thesauri

• Automatic metadata extraction – Recommendation of description keywords

• Project information athttp://dspace-dev.dsi.uminho.pt

• Add-ons with source-code• Portuguese version of DSpace

Questions?

Miguel Ferreiramferreira@dsi.uminho.pt

Ana Alice Baptistaanalice@dsi.uminho.pt