semantic web – brilliant simile applications opensource

How Semantic Web Works

How Semantic Web Works – The World Wide Web is an interesting paradox — it’s made with computers but for people. The sites you visit every day use natural language, images and page layout to present information in a way that’s easy for you to understand. Even though they are central to creating and maintaining the Web, the computers themselves really can’t make sense of all this information. They can’t read, see relationships or make decisions like you can.The Semantic Web proposes to help computers “read” and use the Web. The big idea is pretty simple — metadata added to Web pages can make the existing World Wide Web machine readable. This won’t bestow artificial intelligence or make computers self-aware, but it will give machines tools to find, exchange and, to a limited extent, interpret information. It’s an extension of, not a replacement for, the World Wide Web.

Planning a Semantic Web site

This article discusses what you need to know to make your Web site part of the Semantic Web. It starts with a discussion of the problems the Semantic Web tries to solve and then moves to the technologies involved, such as Resource Description Framework (RDF), Web Ontology Language (OWL), and SPARQL Protocol and RDF Query Language (SPARQL). You’ll see how the Semantic Web is layered on top of the existing Web. It then covers some issues that you want to know about when you plan a new Web site and also gives specific examples of how to use technologies like RDFa and Microformats to enable your existing Web site to become a part of the Semantic Web.

Piggy Bank – SIMILE

Piggy Bank is a Firefox extension that turns your browser into a mashup platform, by allowing you to extract data from different web sites and mix them together.
Piggy Bank also allows you to store this extracted information locally for you to search later and to exchange at need the collected information with others.

What is the Semantic Web (Web 3.0)

This video shows Tim Berners Lee talking about the semantic web or Web 3.0. How do we mash different formats of data together into a complete mash of data that understands HOW to talk to each other? Web 3.0? Is it about changing business layers and database layers to be able to communicate more effectively?

Web 3.0 looks into ‘data re-use‘. Using various techniques the web will be able to re-use data that’s already been created and mash it together with other data in common formats to provide new sets of data – or different ways of looking at the data. We are looking at a sea change; data manipulation that filters data and joins data into a super warehouse. Changing data in a meaningful way – perhaps cure todays illnesses or improve peoples lives.

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Click here for a full size mindmap with more information

The Semantic Web – Web 3.0

What is the semantic web (or web 3.0)?

The Semantic Web is a web of data. There is lots of data we all use every day, and it is not part of the web. I can see my bank statements on the web, and my photographs, and I can see my appointments in a calendar. But can I see my photos in a calendar to see what I was doing when I took them? Can I see bank statement lines in a calendar?

semantic-webWhy not? Because we don’t have a web of data. Because data is controlled by applications, and each application keeps it to itself.

The Semantic Web is about two things. It is about common formats for integration and combination of data drawn from diverse sources, where on the original Web mainly concentrated on the interchange of documents. It is also about language for recording how the data relates to real world objects. That allows a person, or a machine, to start off in one database, and then move through an unending set of databases which are connected not by wires but by being about the same thing.

Wikipedia describes web 3.0 – the semantic web as:

Web 3.0 is one of the terms used to describe the evolutionary stage of the Web that follows Web 2.0. Given that technical and social possibilities identified in this latter term are yet to be fully realized the nature of defining Web 3.0 is highly speculative. In general it refers to aspects of the Internet which, though potentially possible, are not technically or practically feasible at this time.

Is this the end of Google (or maybe the start of the end…)?

Wikipedia 3.0: The End of Google?

The Semantic Web (or Web 3.0) promises to “organize the world’s information” in a dramatically more logical way than Google can ever achieve with their current engine design. This is specially true from the point of view of machine comprehension as opposed to human comprehension.The Semantic Web requires the use of a declarative ontological language like OWL to produce domain-specific ontologies that machines can use to reason about information and make new conclusions, not simply match keywords.

This quote from an article (blog) from evolvingtrends has some interesting points. If (at last) we get to the point where web pages are ‘organised’ or structured in such a way that a form of natural search language can evolve (aka SQL, etc.) then the web will become self describing. The ‘structure’ of the web can actually be its own database[engine].

Once we evolve (naturally…?) the constructs within web pages to semantically describe the data that is embedded into the page, should we not have a perfect solution for searching and selecting data? Imagine if you will pages with pseudo XML markup that conforms to pre-defined schemas (XML I hear you shouting) that enables any web page to embed the data in such a way that a natural search engine can find the data; not only find it but find it with some degree of accuracy.

Instead of flapping around trying to parse data (text at the moment) from long winded html web pages, the constructs of the web pages will be a sort of self describing database that conforms to common standards. For example you would be able to search all web pages for cars that have certain characteristics and requirements, throughout the web, and actually GET good results. No longer the wishy washy results returned by the ‘best guess’ methods of the search engines; now information that conforms exactly to our search criteria – eutopia?

Watch this space (and of course millions of other ‘spaces’) as we get closer to having a useful ”search enabled’ web…

via W3C Semantic Web Activity.