Michael Daconta: The semantic Web
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Need help sorting through Web services? What is the semantic Web? Internet expert and researcher Michael Daconta, author of a book by the same title, answered questions Feb. 12 in a live, online forum. <a href="http://gcn.com/forum/qna_forum/24897-2.html">Transcript</a>
Read Daconta's interview with GCN Associate editor Joab Jackson
GCN.com:
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Joab Jackson:
Welcome to today's forum. Today we have Michael C. Daconta, an author of The Semantic Web, a recently published book by Wiley Publishing.
We have found Mr. Daconta to be extremely helpful in making sense of the soup of acronyms that is Web services and the Semantic Web. Daconta is also chief architect for the Defense Intelligence Agencys Virtual Knowledge Base, a project to compile a directory of Defense Department data through Extensible Markup Language ontologies. He is chief director of Web and technology services for systems integrator APG McDonald Bradley Inc. of McLean, Va.
Thanks for logging in today and welcome Mr. Daconta.
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Joab Jackson:
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Michael Daconta:
Agencies should learn that decentralized sharing of data is the best way to go. Things are too dynamic and fluid to attempt to centralize data sharing.
The Intelink Management Office [an interagency office that oversees top-secret, secret and sensitive but unclassified intranets for intelligence organizations] is rapidly adopting RSS for implementing
publish/subscribe of site feeds/changes for the Intelligence community.
Other agencies should rapidly follow suit.
One thing *NOT* to learn from the blogging community is the tremendous
amount of standards "thrashing" that has gone on with RSS. Our project
uses the RDF Site Summary which is RSS 1.0 because we want a
seamless migration path to have our RSS feeds references OWL ontologies. [Editor's note: OWL is the Web Ontology Language. RDF is the Resource Description Framework] RDF and OWL have just become W3C recommendations. See
http://www.w3.org for details.
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Alec in DC:
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Michael Daconta:
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Wash DC:
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Michael Daconta:
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Larry McCay - Philadelphia, PA:
What if any aspects of security do you see as being within the scope of the Virtual Knowledge Base and how do you ensure the integrity of the knowledge as it is accessed across the network?
Do you plan on leveraging only the security mechansims provided via the chosen platform?
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Michael Daconta:
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Joab Jackson:
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Michael Daconta:
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Randy Spears, Bethesda MD:
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Michael Daconta:
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Washington:
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Michael Daconta:
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Susan, Bethesda:
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Michael Daconta:
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Dave in VA:
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Michael Daconta:
Representing knowledge correctly is not easy; however, as semantic web tools mature and as we get more good examples -- it will become easier. This year, I will be participating on the W3C Semantic Web Activities Best Practices group. Our job will be to come up with advice, guidelines and patterns for creating data using RDF and OWL.
One more thing, even the move from unstructured data (like HTML) to semi-structured data like XML can be difficult. I highly recommend that agencies get a senior team of XML experts and functional experts to hammer out a draft standard BEFORE opening it up to a large group. Why? Because you need experienced people to easily settle the basic debate questions that stall large groups. This method has worked for customers who I have supported to develop mortgage standards, military markup and now NCES standards.
![](http://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcw/images/clearpixel.gif)
Nampa, Idaho:
Many IT professionals working to bring to market associative search engines find themselves stymied, even baffled, by how difficult it is to program a search engine that is an almost exact match with how users view the data and their needs. One group created preset keyword queries that, when shown to the customer, were almost a 100% mismatch from how the user defined the keyword.
So, what is the realistic chance that search will one day be as easy and successful as asking Rover to fetch the eyeglasses case that only you and he know how to find?
![](http://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcwhttp://download.101com.com/pub/fcw/images/clearpixel.gif)
Michael Daconta:
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Joe B, Washington DC:
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Michael Daconta:
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Ed , Maryland:
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Michael Daconta:
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Larry McCay - Philadelphia, PA:
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Michael Daconta:
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Alec in DC:
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Michael Daconta:
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Joab Jackson:
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