Short Intro: In this blog I am going to cover simplest intro to Semantic Web’s concept, It’s needs and the way we will be going to adopt it… So have a nice journey to this blog.
Why we need a new technology?
Data is present everywhere on web. That is generally hidden in HTML files and is often useful in some situations, but not in others. The problem with the majority of data on the Web that is in this form at the moment is that it is difficult to use on a large scale, because there is no global system for publishing data in such a way as it can be easily processed by anyone. As an example, the information about weather forecast, local sports events, plane schedules, Major League Football statistics, and TV channel guides… all of this information is presented by numerous sites, but all in HTML. The problem with that is, in some contexts, it is difficult to use this data in the ways that one might want to have it in a form. So the Semantic Web can be seen as a huge engineering solution… but it is more than that. We will find that as it becomes easier to publish data in a re-purposable form, so more people will want to publish data, and there will be a incidental and effect. We may find that a large number of Semantic Web applications can be used for a variety of different tasks, increasing the modularity of applications on the Web.
The concept of Semantic Web was first thought up by Tim Berners-Lee, the inventor of WWW, URIs, HTTP. And now Semantic Web is under research phase all over the world.
A dedicated team at World Wide Web consortium is working on SW to improve, extend and standardize the system and many languages, publications, tools and so many other things have been developed. However, Semantic Web technologies are still very much in their infancies, and although the future of the project in general appears to be bright, there seems to be little consensus about the likely direction and characteristics of the early Semantic Web.
The Semantic Web is generally built on syntaxes which use URIs to represent data, usually in triples based structures: i.e. many triples of URI data that can be held in databases, or interchanged on the world Wide Web using a set of particular syntaxes developed especially for the task. These syntaxes are called “Resource Description Framework” syntaxes. Read in detail about Pillars of Semantic Web.
A URI is simply a Web identifier, like the strings starting with http or ftp that you often see on the World Wide Web. Anyone can create a URI, and the ownership of URIs is clearly delegated, so they form an ideal base technology on top of which to build a global Web. In fact, the World Wide Web is such a thing: anything that has a URI is considered to be “on the Web.” Every data object and every data schema/model in the Semantic Web must have a unique URI. – Read more about URI in detail.
The Resource Description Framework (RDF), developed under the sponsorship of the World Wide Web Consortium (W3C), is an infrastructure that enables the encoding, exchange, and reuse of structured metadata.
This infrastructure enables metadata interoperability through the design of mechanisms that support common conventions of semantics, syntax, and structure. RDF does not specify semantics for each resource description community, but rather provides the ability for these communities to define metadata elements as needed. Read more detail for RDF.
Future of Semantic Web:
Once the Semantic Web exists, it can provide the ability to tag all content on the Web, describe what each piece of information is about and give semantic meaning to the content item. Thus, search engines become more effective than they are now, and users can find the precise information they are hunting. Organizations that provide various services can tag those services with meaning; using Web-based software agents, you can dynamically find these services on the fly and use them to your benefit or in collaboration with other services.
Though a lot more work has to be done under the umbrella of Semantic Web Technology, Researchers from all over the world are striving hard to bring it in a shape. Till now its implementation into practical world is so rare, but few big companies have started implementing it on trial bases. We can hope for its real execution within few years.