The difference between the Semantic Web

How to understand and judge?

The Semantic Web "is different from the existing World Wide Web, whose data is mainly for human use. The new generation of WWW will provide data that can also be processed by computers, which will make a large number of intelligent services possible"; Semantic Web The goal of the Internet research activity is to "develop a series of languages ??and technologies for expressing semantic information that can be understood and processed by computers to support widespread and effective automatic reasoning in network environments."

The World Wide Web we currently use is actually a medium for storing and sharing images and text. All the computer can see is a bunch of text or images, and its content cannot be identified. If the information in the World Wide Web is to be processed by a computer, it must first be processed into original information that the computer can understand before processing, which is quite troublesome. The establishment of the Semantic Web makes things much simpler.

For example, one morning you suddenly want to travel to Hoh Xil, so you turn on your computer, connect to the Semantic Web, and enter "book a flight ticket to Hoh Xil anytime between two and six this afternoon." At this moment, your computer agent will first contact the agent of the airline where you live to obtain air ticket information that meets your requirements, and then contact the airline's booking agent to complete the order. You don't have to go online to check the schedule, copy and paste it, and then make phone calls or book flights and hotels online. The software installed on your computer will automatically complete the above steps for you. All you have to do is use your mouse. Just press a few buttons and wait for the flight ticket delivery person to come to your doorstep or even go directly to the airport to board your flight.

When browsing news, the Semantic Web will label each news report, describing in detail which sentence is the author, which sentence is the introduction, and which sentence is the title. In this way, if you type "Lao She's works" into a search engine, you can easily find Lao She's works instead of articles about him.

In short, the Semantic Web is a richer and more personalized network. You can give it a high degree of trust and let it help you filter out content you don’t like, making the network more like you. own network. The main differences between it and the ordinary World Wide Web are as follows:

1. Different target-oriented objects

The current World Wide Web mainly uses HTML to express web page content. Web pages using HTML tags can indeed express some information such as controlling the display format of the web page, making people think that computers can really "understand" our intentions. But in fact, HTML only focuses on the form of text expression, such as font color, size, type, etc., without considering the specific content and meaning of the text. Although there are some automated script programs on the World Wide Web that can help people achieve some functions, they are not well suited for interaction between computers in an open network environment. Therefore, the World Wide Web we currently use is mainly for "people" to read and use. The Semantic Web is to add some semantic information that can be "understood" by computers on the World Wide Web. It not only facilitates people's reading and use, but also facilitates mutual communication and cooperation between computers. Therefore, the World Wide Web is mainly oriented to "people", while the Semantic Web is mainly oriented to "machines".

2. Different information organization methods

Since the two target different objects, there will naturally be big differences in the information organization methods. The World Wide Web mainly focuses on "people" when organizing information resources, and organizes network information resources according to people's thinking habits and convenience. When organizing information resources, the Semantic Web must take into account the computer's "understanding" of text content and the mutual exchange and communication between them.

3. Different emphasis

The World Wide Web focuses on the display format and style of information, but does not care about the content to be displayed. For example, for more important information, the World Wide Web may display it in large fonts or brightly colored fonts. The Semantic Web focuses more on the semantic content of information, and texts with specific meanings must be marked or interpreted to a certain extent.

4. Different main tasks

The World Wide Web is mainly for people to read, communicate and use. Its main task is to publish and obtain information. Achieve the purpose of sharing and communicating by publishing or obtaining information on the Internet. The main task of the Semantic Web is mutual communication and sharing between computers, so that computers can complete part of the work for people and make network applications more intelligent, automated and humane.

5. Different working methods

The Semantic Web and the World Wide Web target different objects, so their working methods are naturally different. The World Wide Web is mainly oriented to "people", so most of its work is done by people, including information collection, retrieval, sorting, sorting and analysis, etc. By adding some semantic information that can be "understood" by computers, the Semantic Web can free people from the above-mentioned tedious tasks and use "intelligent agents" to help complete most of the above-mentioned tasks. A typical example is information retrieval. Using intelligent search agents, the Semantic Web will provide the information content people really need, instead of outputting tens of thousands of useless search results like today's search engines.