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Metadata for Educational Resources in Digital Repositories

January 26th, 2010 clifft135 No comments

From: XML Daily Newslink. Monday, 25 January 2010

The Use of Metadata for Educational Resources in Digital Repositories
D. A. Koutsomitropoulos, A. D. Alexopoulos (et al.), D-Lib Magazine

http://www.dlib.org/dlib/january10/kout/01kout.html
See also IEEE P1484.12.4, LOM Using the Dublin Core Abstract Model: http://preview.tinyurl.com/yc9bvu3

An implied requirement of today’s World Wide Web is to provide mechanisms
that store, manage and discover resources in an efficient way. This
becomes a necessity for all kinds of electronically available resources,
the number of which is increasing at an extremely rapid rate. Digital
repositories are mechanisms that fulfill this requirement, provided that
they utilize appropriate metadata schemata for the characterization of
their content…

A popular system that operates as a digital repository for educational
purposes is DSpace. DSpace uses the qualified Dublin Core (DC) element
set as its base metadata schema. However, because the DC schema is
sometimes proven to be inadequate for the efficient characterization of
educational material, we attempt the development of an application
profile, extended with the LOM metadata standard, and we tailor it to
the needs of an educational repository. At the same time, we propose an
ontology using these LOM elements that helps to better capture the
semantic notions of the underlying concepts and forms the basis for the
deployment of digital repositories with advanced services…

The incorporation of the LOM schema required a careful process through
which we investigated exactly which LOM concepts were missing from the
system’s metadata registry. Those concepts were imported into the
repository’s inherent metadata schema and were mapped to the appropriate
DC-Terms properties. In addition, we extended the DSpace OAI harvesting
facility to make it possible to expose these newly adopted LOM metadata.
This idea can be similarly applied in any other OAI-compliant repository,
resulting in the interoperable export and reuse of its educational
metadata.

As a means to better capture the semantics of the relation between LOM
and DC, we have also proposed the basis for an LOM ontology. This
ontology explicitly represents LOM filler-values and vocabularies as
proper entities, while allowing their classification and association
with DC-Terms notions under well-defined relations. Therefore, it can
be further utilized to enable semantic-aware services and suggests a
means for providing semantic interoperability…”

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Ontology and Semantic Web Tools

November 7th, 2009 clifft135 No comments

Semantic Web

October 31st, 2009 clifft135 No comments

RDFa usage spreading…
http://ivan-herman.name/2009/12/12/rdfa-usage-spreading%E2%80%A6/

Using GRDDL and/or RDFa to annotate REST services
http://ivan-herman.name/2008/01/18/using-grddl-andor-rdfa-to-annotate-rest-services/

International Semantic Web Conference — ISWC 2009
http://iswc2009.semanticweb.org/

A Semantic Web Primer for Object-Oriented Software Developers – W3C
Published in 2006 but still useful when positioning SW
http://www.w3.org/TR/sw-oosd-primer/

Welcome to the Semantic Web Company DemoZone
http://demozone.semantic-web.at/

Triplify
http://triplify.org/Documentation

Agile Knowledge Engineering and Semantic Web (AKSW)
http://aksw.org/About

W3C: Semantic Web

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NLP, AI, Lisp, emacs, and Python

September 30th, 2009 clifft135 No comments

GNU Emacs Manual
http://www.gnu.org/software/emacs/manual/html_node/emacs/index.html

Easy AI with Python (#115)
http://us.pycon.org/2009/conference/schedule/event/71/

Logic and Artificial Intelligence
http://plato.stanford.edu/entries/logic-ai/

Handbook of Natural Language Processing Wiki
http://cgi.cse.unsw.edu.au/~handbookofnlp/index.php?n=Main.General

The Original ‘Lambda Papers’ by Guy Steele and Gerald Sussman
http://library.readscheme.org/page1.html

Python Cook Book Active State
http://code.activestate.com/recipes/langs/python/

Natural Language Toolkit
http://www.nltk.org/

Natural Language Processing with Python
— Analyzing Text with the Natural Language Toolkit

http://www.nltk.org/book

Nodebox English Linguistics library
http://nodebox.net/code/index.php/Linguistics#loading_the_library

Beautiful Soup is a Python HTML/XML parser
http://www.crummy.com/software/BeautifulSoup/

NumPy is the fundamental package needed for scientific computing with Python
http://numpy.scipy.org/

Statistical natural language processing and corpus-based computational linguistics: An annotated list of resources
http://nlp.stanford.edu/links/statnlp.html

Tools

Some of the tools   used by Programming the Semantic Web Site:

RDFLib – Python Library for RDF
http://www.rdflib.net/
Sesame – Triple Store
http://www.openrdf.org/
Redland – RDF Library
http://librdf.org/
Protege – Ontology Editor
http://protege.stanford.edu/

Link to book examples is:  http://semprog.com/psw/

The Stanford NLP Group
http://nlp.stanford.edu/

ACL
http://www.aclweb.org/

Grok http://grok.zope.org/
Zope Toolkit http://docs.zope.org/zopetoolkit/

Continuations Made Simple and Illustrated — Denys Duchier
http://www.ps.uni-sb.de/~duchier/python/continuations.html

Enthought Tool Suite
http://code.enthought.com/

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RDF Data, Messages, Documents

September 28th, 2009 clifft135 No comments

How to balance the ability to find information using rdf with the events driven messages with the context and trust of documents.

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Semantics and e-Government

September 27th, 2009 clifft135 No comments
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Semantic Web Vocabularies and Ontologies

September 13th, 2009 clifft135 No comments
Icon for the FOAF (Friend of a Friend) project...
Image via Wikipedia

An incrementally updated list of semantic web vocabularies and ontologies and comments

FOAF Vocabulary Specification 0.91
http://xmlns.com/foaf/spec/

OWL 2 Reference Card released
http://tw.rpi.edu/weblog/2009/10/18/owl-2-reference-card-released/

OWL 2 Web Ontology Language Document Overview
http://www.w3.org/TR/2009/PR-owl2-overview-20090922/#Documentation_Roadmap

Ontology is Overrated: Categories, Links, and Tags
http://www.shirky.com/writings/ontology_overrated.html

Jeff Jonas — Ontology And Why I Am Not Obsessed With This Fancy Little Overrated Word
http://jeffjonas.typepad.com/jeff_jonas/2009/03/ontology-and-why-i-am-not-obsessed-with-this-fancy-little-overrated-word.html

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RDFa Links for Reference and Quick Intros

September 12th, 2009 clifft135 No comments

Some RDFa links for reference and quick intros

Linked Data Research Centre Linked Data Research Centre — RDFa
http://linkeddata.deri.ie/services/tutorials/rdfa

RDFa Wiki
http://rdfa.info/wiki/RDFa_Wiki

vrdfa – The RDFa Validator
http://ld2sd.deri.org/vrdfa/

RDFa Test Suite

http://rdfa.digitalbazaar.com/test-suite/

RDFa for HTML Authors

http://www.w3.org/MarkUp/2009/rdfa-for-html-authors

The RDFa Handbook

http://webbackplane.com/rdfa-handbook

Getting started with RDFa: Creating a basic FOAF profile
http://webbackplane.com/mark-birbeck/blog/2009/04/getting-started-with-rdfa

RDFa
http://rdfa.info/

Web 2.0 — How RDFa Can Help to Democratise Data on the Web
http://www.youtube.com/watch?v=-fko_UCGCIs

Google – Marking up structured data
http://www.google.com/support/webmasters/bin/answer.py?answer=99170

Google – Specifying an Image in RDFa
http://googlewebmastercentral.blogspot.com/2009/08/specifying-images-license-using-rdfa.html

Talking with Mark Birbeck about RDFa and its use in Government
http://cloudofdata.com/2009/07/talking-with-mark-birbeck-about-rdfa-and-its-use-in-government/

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Linked Open Data

August 11th, 2009 clifft135 No comments

Followup interview by Paul Miller with Jim Hendler and Li Ding about ongoing work to convert Data.Gov resources to RDF at http://blogs.talis.com/nodalities/category/podcast.

Linked Data – Connect Distributed Data across the Web
http://linkeddata.org/

The posting includes extensive resource links for followup on Data.Gov and related topics.

Data.gov wiki at RPI

Decentralyze – Programming the Data Cloud
http://decentralyze.com/2009/09/11/linked-government-data/

Linked data at the New York Times: Exciting, but buggy
http://dowhatimean.net/2009/10/linked-data-at-the-new-york-times-exciting-but-buggy

Linked Data Spam Vectors
http://iandavis.com/blog/2009/09/linked-data-spam-vectors

GoodRelations
http://www.ebusiness-unibw.org/wiki/GoodRelations#CookBook:_GoodRelations_Recipes_and_Examples

URIBurner.com
http://www.uriburner.com/wiki/URIBurner/

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RDF Site Links

July 29th, 2009 clifft135 No comments
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