A Developers Guide to the Semantic Web by Liyang Yu

By Liyang Yu

The Semantic internet represents a imaginative and prescient for a way to make the large quantity of knowledge on the net instantly processable through machines on a wide scale. For this goal, a complete suite of criteria, applied sciences and similar instruments were special and constructed over the past couple of years, they usually have now turn into the basis for various new applications.

A Developer’s consultant to the Semantic Web is helping the reader to profit the center criteria, key parts, and underlying strategies. It offers in-depth assurance of either the what-is and how-to features of the Semantic net. From Yu’s presentation, the reader will receive not just a high-quality knowing concerning the Semantic net, but in addition mix every part to construct new purposes at the Semantic Web.

Software builders in and scholars focusing on net improvement or Semantic net applied sciences will locate during this e-book the main entire consultant to this interesting box on hand this day. according to the step by step presentation of real-world tasks, the place the applied sciences and criteria are utilized, they'll collect the data had to layout and enforce cutting-edge applications.

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Extra resources for A Developers Guide to the Semantic Web

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6 kg” “5 stars” More specifically, each row in the table represents one arrow in the graph, including the start node, the edge with the arrow, and the end node. The first column, therefore, has the name of the start node, the second column has the label of the edge, and the third column has the name of the end node. 2 will always be able to represent it correctly. • It should provide a mechanism to connect the distributed information (knowledge) over the Web. Now that every reviewer can publish his/her review freely and a given review can be represented by a graph as we have discussed above, the standard has to provide a way so that our application, when visiting each review graph, is able to decide precisely which product this review is talking about.

So, in plain English, we can define RDF as follows: RDF is a standard published by W3C, and it can be used to represent distributed information/knowledge in a way that computer applications can use and process in a scalable manner. At this point, the above definition about RDF is good enough for us to continue. With more and more understanding about RDF, the following will become more and more obvious to you: • RDF is the basic building block for supporting the vision of the Semantic Web. • RDF is for the Semantic Web what HTML has been for the Web.

Similarly, a Nikon D300 camera can be identified on the Web, yet we cannot retrieve it from the Web. Therefore, for these resources, we cannot simply use URLs to represent them. Fortunately, the Web provides a more general form of identifier for this purpose, and it is called the Uniform Resource Identifier (URI). In general, URLs can be understood as a particular kind of URI. Therefore, a URI can be created to identify anything that can be retrieved directly from the Web and also to represent anything that is not network accessible, such as a human being, a building, or even an abstract concept that does not physically exist, such as the picture quality of a given camera.

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