Search Keyword Extraction

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As we all know, to search the search engine information must first input keywords, so say the keyword is the beginning of all things. In most cases, the required information is not found because of the bias in the direction of keyword selection, learning to extract the most representative and indicative keywords from complex search intentions is essential to improving search efficiency, which is the basis of all other search techniques.
The principle of choosing a search keyword is to first determine what you want to achieve, and to create a clearer concept in your mind, which is what I'm looking for? Is it a data document? Or some kind of product or service? Then we analyze what the information has in common, and distinguish it from other information, and finally extract the most representative keywords from these directional concepts. If this step is done, you can often quickly locate what you're looking for, and most of the time you don't need to use more sophisticated search techniques.

The choice of key words sometimes still need to move a brain, difficult on how to find a certain type of Web documents key features. Here's a quiz to see how you're doing with your topic induction and feature positioning.

For example, you are a toy (Toys) manufacturer who wants to submit a website to an industry portal that has a list of toys, but you don't know what sites on the Web accept such web sites. Of course, you will first think of using search engines to find, and at this time the choice of keywords seems very important. We recommend that you do not look at the following answer, first may wish to try the search engine (proposed in English search), see if you can accurately and quickly find the target.

OK, now let's analyze this search task.

We are looking for toys related to the website, as a major category of goods, "toys" of course, this kind of information is common. So what is the site that accepts Web site login to be different from other related site characteristics? The answer is that their pages typically have the words "Add URLs" (Addurl or add URLs). See here everyone may suddenly come to an epiphany. Yes, keyword refinement is sometimes like an intelligence test. Finally we determine the search conditions are:

Toys addurl (or add URL)

In the above example, the orientation of information commonality is very natural, there is no obstacle, and the discovery of characteristics needs a little creative thinking. This may be a bit out of the way in the beginning, but when you understand this way of thinking, coupled with the usual search practice many times, the Search keyword refining will eventually become a knee-jerk reaction.