Quick Guide to Publishing a Thesaurus on the Semantic Web: "The Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries [Semantic Web Activity]. It is based on the Resource Description Framework (RDF) [RDF], which provides a simple data formalism for talking about things, their properties, inter-relationships, and categories (classes). For an overview of RDF, see [RDF Concepts]
This document describes in brief how to express the content and structure of a thesaurus, and metadata about a thesaurus, in RDF. Using RDF allows your data to be linked to and/or merged with other RDF data by semantic web applications. In practice, this means that data sources can be distributed across the web in a decentralised way, but still be meaningfully composed and integrated by applications, often in novel and unanticipated ways."
Tuesday, May 17, 2005
Wednesday, April 20, 2005
Gavilian Research Announces 2005 Metadata Solutions Report
CRM Today: Gavilian Research Announces 2005 Metadata Solutions Report: "Gavilan Research Associates, a provider of metadata management research and vendor/product comparisons, is pleased to announce the immediate availability of an important metadata research study called the 2005 MetaData Solutions Report(tm).
This unique, innovative product survey was conducted in early 2005 and was targeted at enterprise software vendors who market themselves as 'metadata management solutions'. The Survey also targeted software companies who offer metadata products in the data warehousing, business intelligence, knowledge management, enterprise architecture or taxonomy/ontology markets. Each software vendor was sent the same comprehensive list of over 100 questions, which comprise all of the typical features, functions, and issues that Global 5000 companies face when organizing a metadata management environment."
This unique, innovative product survey was conducted in early 2005 and was targeted at enterprise software vendors who market themselves as 'metadata management solutions'. The Survey also targeted software companies who offer metadata products in the data warehousing, business intelligence, knowledge management, enterprise architecture or taxonomy/ontology markets. Each software vendor was sent the same comprehensive list of over 100 questions, which comprise all of the typical features, functions, and issues that Global 5000 companies face when organizing a metadata management environment."
Monday, March 28, 2005
Software AG Delivers Further Building Block for Service-oriented Architecture
Software AG delivers further building block for service-oriented architecture: "[Johannesburg, 24 March 2005] - Software AG has announced the worldwide release of its Enterprise Information Integrator (EII) version 2.1, an important building block in implementing a service-oriented architecture.
EII V2.1 is the first globally available information integration product to use Semantic Web technology. By dynamically combining the meaning and context of business data with the rules that govern its use, Enterprise Information Integrator provides business leaders with the resources to make faster decisions based on real-time information availability."
EII V2.1 is the first globally available information integration product to use Semantic Web technology. By dynamically combining the meaning and context of business data with the rules that govern its use, Enterprise Information Integrator provides business leaders with the resources to make faster decisions based on real-time information availability."
Friday, March 25, 2005
RNA Project to Create Language for Scientists Worldwide
RNA project to create language for scientists worldwide: "Creating the RNA Ontology will require incorporating the methods and vocabularies of chemists, molecular biologists, genomicists, information scientists and structural biologists. To help sort out the difficult conceptual issues, the consortium will organize frequent face-to-face meetings of RNA scientists. Members will also report their progress at the annual RNA Society meetings and receive feedback from the wider community of researchers.
The ontology team will identify all RNA motifs, or repeated patterns, mentioned in the literature or appearing in databases, to agree upon and write a definition for each motif. The consortium's work will be accessible on the Web to the various RNA research communities using servers hosted at BGSU. "
The ontology team will identify all RNA motifs, or repeated patterns, mentioned in the literature or appearing in databases, to agree upon and write a definition for each motif. The consortium's work will be accessible on the Web to the various RNA research communities using servers hosted at BGSU. "
Monday, February 14, 2005
Web Service API and the Semantic Web
Web Service API and the Semantic Web @ SOA WEB SERVICES JOURNAL: "As the Semantic Web gains momentum, it's important for Web service developers to keep abreast of its technologies and prepare for a change in their industry.
This article looks at how the Semantic Web applies to Web services, including what specifications are under development and how you might prepare for integration with future semantic applications.
What Is the Semantic Web and How Does It Impact Web Services?
The current World Wide Web presents large volumes of information in a format tailored for viewing by people. A person can surf from link to link, query search engines, or attempt to reach sites by domain name. While the pages retrieved are appealing to humans, to the software that processes the contents they are no more than a string of random characters.
Software programs cannot load a random document, Web page, or file and understand the contents of that document. While the software could make assumptions based on HTML or XML tags, a human programmer would have to get involved and determine the meaning, or semantics, of each tag. From a computer's perspective, the World Wide Web is a garbled mess. Luckily, there's a solution: the Semantic Web."
This article looks at how the Semantic Web applies to Web services, including what specifications are under development and how you might prepare for integration with future semantic applications.
What Is the Semantic Web and How Does It Impact Web Services?
The current World Wide Web presents large volumes of information in a format tailored for viewing by people. A person can surf from link to link, query search engines, or attempt to reach sites by domain name. While the pages retrieved are appealing to humans, to the software that processes the contents they are no more than a string of random characters.
Software programs cannot load a random document, Web page, or file and understand the contents of that document. While the software could make assumptions based on HTML or XML tags, a human programmer would have to get involved and determine the meaning, or semantics, of each tag. From a computer's perspective, the World Wide Web is a garbled mess. Luckily, there's a solution: the Semantic Web."
Friday, January 14, 2005
Formal Taxonomies for the U.S. Government
XML.com: Formal Taxonomies for the U.S. Government: "Taxonomies have long played a central role in both medical and library science for the classification of medical terms and books. Recently, the U.S. federal government's Office of Management and Budget (OMB) released the Federal Enterprise Architecture (FEA) Data Reference Model (DRM). The FEA DRM specifies three abstract layers of an organization's information: business context, information exchange, and data element description. Business context specifies the use of a taxonomy to categorize government information. One definition of a taxonomy is 'a scheme that partitions a body of knowledge and defines the relationships among the pieces. It is used for classifying and understanding the body of knowledge.'"
Friday, September 17, 2004
XML.com: Uncle Sam's Semantic Web
XML.com: Uncle Sam's Semantic Web: "From the EPA to the Navy, the United States government is coming to see the Semantic Web as a solution to huge data-processing problems. XML.com columnist Paul Ford gets the scoop at the 2004 Semantic Technologies for e-Government Conference.
What did the Semantic Web have to do with the war in Iraq? Not enough, says Jim Hendler, who heads the Mindswap Semantic Web research laboratory at the University of Maryland, speaking at the 2004 Semantic Technologies for e-Government Conference in McLean, Virg., held Sept. 8-9, 2004. 'The beginning of the Iraqi operation was postponed for weeks because information systems couldn't be made interoperable in the time required,' said Hendler. 'Systems couldn't talk to one another.' It was a problem, he says, that a Semantic Web framework could have solved.
Operation Infinite Triples
Hendler's assessment -- that the Semantic Web is the essential glue that will allow large systems to speak to one another, across organizational boundaries -- was shared by many in attendance. A number of agencies and corporations described Semantic Web projects in progress, for client organizations like the Navy, NIST, the Tennessee Valley Authority, the Office of Child Support Enforcement, the Office of Homeland Security, and others."
What did the Semantic Web have to do with the war in Iraq? Not enough, says Jim Hendler, who heads the Mindswap Semantic Web research laboratory at the University of Maryland, speaking at the 2004 Semantic Technologies for e-Government Conference in McLean, Virg., held Sept. 8-9, 2004. 'The beginning of the Iraqi operation was postponed for weeks because information systems couldn't be made interoperable in the time required,' said Hendler. 'Systems couldn't talk to one another.' It was a problem, he says, that a Semantic Web framework could have solved.
Operation Infinite Triples
Hendler's assessment -- that the Semantic Web is the essential glue that will allow large systems to speak to one another, across organizational boundaries -- was shared by many in attendance. A number of agencies and corporations described Semantic Web projects in progress, for client organizations like the Navy, NIST, the Tennessee Valley Authority, the Office of Child Support Enforcement, the Office of Homeland Security, and others."
Thursday, July 15, 2004
XML.com: Ontology Tools Survey, Revisited
XML.com: Ontology Tools Survey, Revisited: "Ontologies are a way of specifying the structure of domain knowledge in a formal logic designed for machine processing. The effect on information technology (IT) is to shift the burden of capturing the meaning of data content from the procedural operations of algorithms and rules to the representation of the data itself.
Opening the International Semantic Web Conference in 2003, the conference chair Jim Hendler declared that 'a little semantics goes a long way.' The belief being that infusing even a little semantic quality into our data (residing in web pages, database tables, electronic documents, or whatever) can mean that data is more immediately, broadly, and profoundly usable by all applications aware of the knowledge-representation scheme -- the ontology.
For such reasons, there is a growing sense among researchers and practitioners that ontologies will play an important role in forthcoming information-management solutions. Several conditions predicate this current state of affairs."
Opening the International Semantic Web Conference in 2003, the conference chair Jim Hendler declared that 'a little semantics goes a long way.' The belief being that infusing even a little semantic quality into our data (residing in web pages, database tables, electronic documents, or whatever) can mean that data is more immediately, broadly, and profoundly usable by all applications aware of the knowledge-representation scheme -- the ontology.
For such reasons, there is a growing sense among researchers and practitioners that ontologies will play an important role in forthcoming information-management solutions. Several conditions predicate this current state of affairs."
Friday, February 20, 2004
RDF Semantics
RDF Semantics: "RDF is an assertional language intended to be used to express propositions using precise formal vocabularies, particularly those specified using RDFS [RDF-VOCABULARY], for access and use over the World Wide Web, and is intended to provide a basic foundation for more advanced assertional languages with a similar purpose. The overall design goals emphasise generality and precision in expressing propositions about any topic, rather than conformity to any particular processing model: see the RDF Concepts document [RDF-CONCEPTS] for more discussion.
Exactly what is considered to be the 'meaning' of an assertion in RDF or RDFS in some broad sense may depend on many factors, including social conventions, comments in natural language or links to other content-bearing documents. Much of this meaning will be inaccessible to machine processing and is mentioned here only to emphasize that the formal semantics described in this document is not intended to provide a full analysis of 'meaning' in this broad sense; that would be a large research topic. The semantics given here restricts itself to a formal notion of meaning which could be characterized as the part that is common to all other accounts of meaning, and can be captured in mechanical inference rules.
"
Exactly what is considered to be the 'meaning' of an assertion in RDF or RDFS in some broad sense may depend on many factors, including social conventions, comments in natural language or links to other content-bearing documents. Much of this meaning will be inaccessible to machine processing and is mentioned here only to emphasize that the formal semantics described in this document is not intended to provide a full analysis of 'meaning' in this broad sense; that would be a large research topic. The semantics given here restricts itself to a formal notion of meaning which could be characterized as the part that is common to all other accounts of meaning, and can be captured in mechanical inference rules.
"
Thursday, February 19, 2004
RDF Primer
RDF Primer: "The Resource Description Framework (RDF) is a language for representing information about resources in the World Wide Web. It is particularly intended for representing metadata about Web resources, such as the title, author, and modification date of a Web page, copyright and licensing information about a Web document, or the availability schedule for some shared resource. However, by generalizing the concept of a 'Web resource', RDF can also be used to represent information about things that can be identified on the Web, even when they cannot be directly retrieved on the Web. Examples include information about items available from on-line shopping facilities (e.g., information about specifications, prices, and availability), or the description of a Web user's preferences for information delivery.
RDF is intended for situations in which this information needs to be processed by applications, rather than being only displayed to people. RDF provides a common framework for expressing this information so it can be exchanged between applications without loss of meaning. Since it is a common framework, application designers can leverage the availability of common RDF parsers and processing tools. The ability to exchange information between different applications means that the information may be made available to applications other than those for which it was originally created."
RDF is intended for situations in which this information needs to be processed by applications, rather than being only displayed to people. RDF provides a common framework for expressing this information so it can be exchanged between applications without loss of meaning. Since it is a common framework, application designers can leverage the availability of common RDF parsers and processing tools. The ability to exchange information between different applications means that the information may be made available to applications other than those for which it was originally created."
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