Musings » Tools http://www.chrisfrymann.com Thoughts and resources worth sharing or remembering Wed, 07 Oct 2009 21:01:21 +0000 http://wordpress.org/?v=2.8.3 en hourly 1 Reference: “Triple Stores Aren’t” http://www.chrisfrymann.com/2009/08/07/reference-triple-stores-arent/ http://www.chrisfrymann.com/2009/08/07/reference-triple-stores-arent/#comments Fri, 07 Aug 2009 20:21:30 +0000 admin http://www.chrisfrymann.com/?p=539

From the blog of Eric Hellman

Triple Stores Aren’t

“…all the triple stores in serious use today use more that 3 columns to store the triples. Instead of triples, RDF atoms are now stored as 4-tuples, 5-tuples, 6-tuples or 7-tuples.

…

Is there anything harmful with the misnomerization of “triple”, enough for the community to try their best to start talking about “tuples”? I think there is. Linked Data is the best example of how a focus on the three-ness of triples can fool people into sub-optimal implementations. I heard this fear expressed several times during the conference, although not in those words. More than once, people expressed concern that once data had been extracted via SPARQL and gone into the Linked Data cloud, there was no way to determine where the data had come from, what its provenance was, or whether is could be trusted. He was absolutely correct- if the implementation was such that the raw triple was allowed to separate from its source. If there was a greater understanding of the un-three-ness of real rdf tuplestores, then implementers of linked data would be more careful not to obliterate the id information that could enable trust and provenance. I come away from the conference both excited by Linked Data and worried that the Linked Data promoters seemed to brush-off this concern.”

]]> http://www.chrisfrymann.com/2009/08/07/reference-triple-stores-arent/feed/ 0 Google Rolls out Semantic Search Capabilities http://www.chrisfrymann.com/2009/04/28/google-rolls-out-semantic-search-capabilities/ http://www.chrisfrymann.com/2009/04/28/google-rolls-out-semantic-search-capabilities/#comments Tue, 28 Apr 2009 23:58:07 +0000 admin http://www.chrisfrymann.com/?p=349

Google Rolls out Semantic Search Capabilities

“Google has given its Web search engine an injection of semantic technology, as the search leader pushes into what many consider the future of search on the Internet.”

]]> http://www.chrisfrymann.com/2009/04/28/google-rolls-out-semantic-search-capabilities/feed/ 0 JavaScript Information Visualization Toolkit (JIT) http://www.chrisfrymann.com/2009/04/27/jit/ http://www.chrisfrymann.com/2009/04/27/jit/#comments Mon, 27 Apr 2009 20:13:09 +0000 admin http://www.chrisfrymann.com/?p=319

The JavaScript Information Visualization Toolkit is an advanced JavaScript infovis toolkit based on 5 papers about different information visualization techniques.
The JIT implements advanced features of information visualization like Treemaps (with the slice and dice and squarified methods), an adapted visualization of trees based on the Spacetree, a focus+context technique to plot Hyperbolic Trees, and a radial layout of trees with advanced animations (RGraph).

Click on the image above to see it in action, then:

  • Move the slider on the right to resize
  • Drag from anywhere on the circles to relocate
  • Click on any label to redraw
  • View Source to see JSON expression of data being visualized

This implementation and enhancement of JIT was written by Chris Beer and was demonstrated with a different dataset at Code4Lib this year.

The dataset being demonstrated here is a slight extension of the one referenced in the Cytoscope post of 2009.04.24.

]]> http://www.chrisfrymann.com/2009/04/27/jit/feed/ 0 Yahoo SearchMonkey Includes UMBEL Ontology http://www.chrisfrymann.com/2009/04/27/umbel-now-included-in-searchmonkey/ http://www.chrisfrymann.com/2009/04/27/umbel-now-included-in-searchmonkey/#comments Mon, 27 Apr 2009 19:20:18 +0000 admin http://www.chrisfrymann.com/?p=310

+

See full article here

“…UMBEL is now included as one of the recommended vocabularies for the Yahoo! SearchMonkey service. Using SearchMonkey, developers and site owners can use structured data to enhance the value of standard Yahoo! search results and customize their presentation, including through “infobars“. SearchMonkey is integral to a concerted effort by Yahoo! to embrace structured data, RDF and the semantic Web.”

]]> http://www.chrisfrymann.com/2009/04/27/umbel-now-included-in-searchmonkey/feed/ 0 Large-scale RDF Graph Visualization Tools http://www.chrisfrymann.com/2009/04/24/large-scale-rdf-graph-visualization-tools/ http://www.chrisfrymann.com/2009/04/24/large-scale-rdf-graph-visualization-tools/#comments Fri, 24 Apr 2009 21:52:07 +0000 admin http://www.chrisfrymann.com/?p=290

Mike Bergman’s selection and review of 26 candidate graph visualization tools. Cytoscape comes in at Number 1.

]]> http://www.chrisfrymann.com/2009/04/24/large-scale-rdf-graph-visualization-tools/feed/ 0 Cytoscape Graph Visualization Tool http://www.chrisfrymann.com/2009/04/24/cytoscape-graph-visualization-tool/ http://www.chrisfrymann.com/2009/04/24/cytoscape-graph-visualization-tool/#comments Fri, 24 Apr 2009 21:23:28 +0000 admin http://www.chrisfrymann.com/?p=286

Cytoscape is described as an open source bioinformatics software platform for visualizing molecular interaction networks. However, because of the generic nature of graph display and Cytoscape’s flexible import/export capabilities it can easily be used in many other contexts that involve the visual presentation of a web of connected nodes.

Which, for example, was easily created from nothing more than the following data.

Infrastructure    Future
Client    Future
Server    Future
Development    Future
Hardware    Infrastructure
Network    Infrastructure
Cloud    Infrastructure
Cluster    Infrastructure
Virtual    Infrastructure
Browser    Client
Data    Server
Code    Server
Methodology    Development
Tools    Development
Documentation    Development
Amazon    Cloud
Google    Cloud
EC2    Amazon
S3    Amazon
SimpleDB    Amazon
BigTable    Google
MapReduce    Cluster
Hadoop    MapReduce
RIA    Browser
REST    RIA
JavaScript    REST
JSON    JavaScript
AJAX    JavaScript
Jquery    JavaScript
XHTML    RIA
CSS    RIA
Files    Data
Metadata    Data
SRB    Files
SAMBA    Files
ZFS    Files
Google    Files
Flickr    Files
Other_Files    Files
LinkedData    Metadata
XML    LinkedData
MODS    XML
METS    XML
RDF_XML    XML
RDF_Model    LinkedData
Ontology    RDF_Model
RDF    Ontology
RDFS    Ontology
OWL    Ontology
DublinCore    Ontology
MODS    Ontology
FOAF    Ontology
DOAP    Ontology
SKOS    Ontology
OperatingSystem    Code
Java    Code
Database    Code
Linux    OperatingSystem
ApplicationServer    Java
Tomcat    ApplicationServer
JBOSS    ApplicationServer
QueryLanguage    Database
SQL    QueryLanguage
SPARQL    QueryLanguage
Solr    QueryLanguage
RelationalDatabase    Database
Triplestore    Database
Solr    Database
Agile    Methodology
Eclipse    Tools
Subversion    Tools
Wiki    Documentation
Blog    Documentation
KB    Documentation

]]> http://www.chrisfrymann.com/2009/04/24/cytoscape-graph-visualization-tool/feed/ 0 NSDL Releases EduPak: An Open Source Digital Library Services Platform for Education http://www.chrisfrymann.com/2009/03/31/nsdl-releases-edupak-an-open-source-digital-library-services-platform-for-education/ http://www.chrisfrymann.com/2009/03/31/nsdl-releases-edupak-an-open-source-digital-library-services-platform-for-education/#comments Tue, 31 Mar 2009 18:08:07 +0000 admin http://www.chrisfrymann.com/?p=184

NSDL EduPak 1.0 is a publicly available, lightweight version of NCore (http://NCore.nsdl.org), established in 2008 as an open-source digital library platform of technology and standards that create a dynamic information layer on top of library resources. Based on Fedora open source repository software (http://Fedora-Commons.org), NCore provides users, developers, information managers and decision-makers with systems for description, organization, interrelation and annotation of resources. Built using NCore components, EduPak is an all-in-one, open source, education digital repository solution bundle that provides a general platform for building digital libraries united by a common data model and interoperable applications.

]]> http://www.chrisfrymann.com/2009/03/31/nsdl-releases-edupak-an-open-source-digital-library-services-platform-for-education/feed/ 0 Metadata Extraction Tools http://www.chrisfrymann.com/2009/03/16/metadata-extraction-tools/ http://www.chrisfrymann.com/2009/03/16/metadata-extraction-tools/#comments Mon, 16 Mar 2009 21:09:10 +0000 admin http://www.chrisfrymann.com/?p=62 Calais

Calais Viewer demo

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Suggests tags, links, photos, and related articles

GATE

Natural Language Processing (NLP)

libSVM

Support Vector Machine

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