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Chapter Copyright 2007 Digital Enterprise Research Institute. All rights reserved. www.deri.org
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Chapter
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JeromeDLthe Semantic Digital Library
Sharing and Interconnecting Knowledge
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The World of Social Media
the Web is an ecosystem of social media Flickr, blogs, wikipedia, etc. blogosphere doubles every 6 months
Digital libraries need to participate in this ecosystem contribute metadata to the ecosystem leverage on the semantics
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Motivation
Corrib.DERI provides components for: integration and search information from different
sources sharing and interconnecting knowledge among
people
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Yesterday’s world of digital content
Digital library Database and archive (storage) Digital bibliographic descriptions (metadata) Full-text search (interface)
Pros: Content accessible online Federations of libraries – visit less places
Cons: Lonely user No one to talk to, we need to find the right keywords, what if
we do not know them (“man without an ear” paintings example)
Still many problems with interconnecting other sources, incl. libraries
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Today of interconnected, social media
Social Semantic Information Spaces Semantic description (interconnected metadata) Annotations provided by users (social metadata) Collaborative search and browsing (interface)
Features Search and browsing based on semantics empowers
users Users contribute to the classification process Users can understand community driven annotations Users enhance digital content using blogs, wikis on the
side Library can interact with other Internet services
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JeromeDL - Properties
JeromeDL is the social semantic digital library that provides
Integrated social networking with user profiling.
Enhanced personalized search facility.
Interconnects meaningful description of resources with social
media.
Extensible access control based on social networks.
Collaborative browsing and filtering.
Dynamic collections.
Integration with Web 2.0 services.
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Metadata and Services in JeromeDL
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Semantic Metadata and Services
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Creating Semantics
Each resource is described with: structure annotations - chapters, media parts,
attachments basic bibliographic annotations knowledge organization systems - keywords, categories other semantic annotations social annotations (soft semantics)
Resource can be annotated with hard semantics during the uploading process
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demodemo
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Flexible access control
Identity management based on social networks support for social networking metadata standard (FOAF) users and authors are part of a community
Access control module apply access control licenses to resources and services defines atomic protections based on IP or position in the
social network is easily extensible
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demodemo
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Search based on semantics
Natural language templates allows to perform complex queries using natural language can be created and modified based on the needs of users easily internationalized
Semantic Query Expansion (beta) refines query based on current context extensible context definition: user profile, history of queries,
current query, etc.
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demodemo
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Search Beyond one JeromeDL
Distributed search Extensible Library Protocol based on HyperCuP P2P infrastructure
Federated Search Hierarchical order of JeromeDL instances Exposing resources bottom-up
OAI-PMH (alpha) Harvesting other libraries Exposing resources to other libraries
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demodemo
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Browsing on semantics
Dynamic collections specified with triples filter or RDF query easily extensible
TagsTreeMaps filtering based on clustered tags using treemaps to present the tag space zoomable interface paradigm
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demodemo
demodemo
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Browsing on semantics
Exhibit (SIMILE, MIT) powerful faceted filtering rendering related dates on the timeline rendering related places on the google maps
MultiBeeBrowse collaborative browsing allows to perform complex browsing operations user can overview browsing context and look up
browsing history
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demodemo
demodemo
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Access to semantics
Exposing underlying semantics rendering RDF in various flavors exposing semantics in JSON and SIOC syndication feeds (RSS)
Querying semantic database RDF query endpoint OAI-PMH (beta)
Delivering metadata to other services MarcOnt Mediation Services
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demodemo
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Semantic Metadata and Services
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Social Semantic Collaborative Filtering
Why? The bottom-line of acquiring knowledge: informal
communication (“word of mouth”) How?
Everyone classifies (filters) the information in bookmark folders (user-oriented taxonomy)
Peers share (collaborate over) the information (community-driven taxonomy)
Result? Knowledge “flows“ from the expert
through the social network to the user System amass a lot of information
on user/community profile (context) demodemo
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Towards Library 2.0
Users become active producers of the content and metadata
JeromeDL turns a single resources into a blog post: users can annotate it users can rank it metadata about user annotations is exported in SIOC
Community annotations for multimedia (alpha): region of interest (ROI) tagging in photos time-tagging of video streams
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demodemo
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Beyond JeromeDL - connecting to Web 2.0
Other Web 2.0 services can easily hook up to information and services provided by JeromeDL
Example - notitio.us aggregates semantics from different
sources, including JeromeDL involves users in providing more annotations exposes content to other services, such as Learning
Management Systems contains components familiar from JeromeDL
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demodemo
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Conclusions
JeromeDL delivers a set of components that enables semantic web technology
It enhances users experience through the social interactions
It uses semantics existing on the web It delivers semantics for other services
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JeromeDL bringsJeromeDL bringsSemantic Web and Online Communities Semantic Web and Online Communities
to the Digital Librariesto the Digital Libraries
as the Digital Library on as the Digital Library on Social Semantic Information SpacesSocial Semantic Information Spaces
http://www.jeromedl.org/
http://wiki.jeromedl.org/http://wiki.jeromedl.org/
Sebastian Ryszard KrukDERI, NUI Galway, Ireland
