Research on search engine keyword category

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According to China Internet Information Center's 14th China internet Development Survey Report, as of June 30, 2004, China's Internet users have reached 87 million, in the user's various network services, search engine column second, and its use of the frequency second only to e-mail [1]. This data shows a huge potential commercial interest in the search service market. From the user's point of view, users, whether in Yahoo, Sina, Sohu Classification directory to find information, or in Google, Baidu, China Search and other professional search engine Web site searching information, are inseparable from key words, that is commonly said in search engine keywords.

Search engine companies through the analysis of the user's words, phrases, phrases, sentence content, type, frequency, you can directly analyze the user's online search behavior, revealing the user's interest in online information. And the use of these useful information to advertisers, advertisers according to their own needs, you can buy a search engine company or some key words, in order to users in these keyword search, can be in the search results page to display their corporate advertising information. This keyword advertising as a search engine is more and more accepted by the merchant, from this point of view, the keywords can be divided into commercially available keywords and non-commercial keywords, such as "English training" this keyword has a certain commercial value for those English training institutions have a great appeal, in fact, When users use this word to search on Google, there are eight companies on the right side of the same search results page, and Baidu also uses keywords with commercial value to carry out "price rankings" for search results. Conversely, some keywords are not commercially valuable because they are too common or without any direct or indirect business association, such as walking, eating, dressing, riding, etc.

Search engine keywords In addition to the language and there is no commercial value of the division, from the network user specific search behavior, the keyword can also be divided into different criteria. In practice, keywords in search engines can be divided into four criteria, such as the frequency of keywords used in language elements, the content of keywords, and the type of file searched.

One, according to the use frequency of the keyword, the keyword can be divided into:

1, commonly used keywords: is a natural language the most commonly used and is the daily life of people to communicate frequently used parts, commonly used keywords can be word, word, phrase, sentence. user searches are often searched with common keywords.

2, high-frequency Keywords: refers to the user to search frequently used words, and according to social groups, the different classes and differences. For example, the university students in the search engine of high-frequency keywords may be: postgraduate, go abroad, study, TOEFL, employment, and for a pregnant woman, high-frequency keyword is more likely to appear: fetal education, baby, pregnancy, such as health care vocabulary. 3, Hot keywords: refers to a certain period of time by the network users of the general search words, the hot keyword reflects the current social concerns of hot issues, such as: Pour Pizza, SARS, SARS, God five, the Olympic Games and so on. Baidu's search list, there are hot search top50, or reflect a group of hot spots, the same is Baidu's search list, there are the top ten film and television works, the top ten beauty, the top ten it brand, the top ten digital products, such as the list of more than 20, The ranking of these popular keywords is listed in sequence based on different topics.

Second, according to the characteristics of the attributes of keywords to divide, the keywords can be divided into:

1, the proper noun: refers to the name, place names, brand names, or other things of the proper terminology, such as the NBA, the GMAT, Beijing, Cecilia Cheung, West Lake, China Mobile, Tsinghua University, etc., Baidu's search rankings based on the majority of the key words are the type of terminology, such as software name, game name, scenic name, university name , rich name, car name, it brand name, digital product name and so on.

2, typos: refers to the network users in the use of keywords to search, enter the spelling error keyword. Some search engines have corrective functions for errors, for example, in Baidu search "single-minded", the result of "a new Idea", Baidu search engine will contain "a new meaning" This keyword page back, at the same time, will also ask users to find whether it is "single-minded."

Three, according to the search for different file types, keywords can also be divided into:

1, search for Hypertext Markup Language (HTML) web page keywords: search, you can use the word, words, phrases, sentences to search, but often with phrases or sentences more accurate results. Because users search the site, it emphasizes the relevance of the search results, that is, the quality of the search, not the quantity. The current Internet site has been numerous, as of the end of 2003, light China has nearly 60万个万-dimensional site. With one or two words, words often can not find a very accurate site.

2, search the text document keywords: search, you can use the word, words, phrases, sentences to search, from the search effect, the word and words based search results better, and can cooperate with the use of proper nouns. In this way, the scope of the search will be expanded to return more search results.

3, Search multimedia files keywords: including pictures, sound, animation, video files and so on. Search, you can use the word, words, mainly nouns, can be a proper noun, can also be a general term. Multimedia information is an important resource on the Internet, and with the improvement of computer, network and communication hardware and software performance, this part of resources shows the trend of accelerating growth. Many search engines to this part of the resources for separate classification, Google has "image" classification, Baidu has "MP3", "picture" classification, China search has "pictures", "MP3" and "flash" classification. There are special search engines such as: English site search video AltaVista, Chinese website search animation and sound Sogua.

The tools to talk to web information are increasingly dependent on search engines, while conversations with search engines rely on keywords. Search engines are used by the general network users, but also by the business sector generally optimistic. But no matter which side, the language of the dialogue "keyword" should not be easily let go, it is not as simple as it seems. By better use of search keywords, at the same time grasp the search syntax of the relevant search engines, ordinary individuals can greatly improve the search efficiency, in the shortest possible time to find relevant information; Businesses can discover the great business value of search keywords, which through keyword advertising, may be reflected in short-term sales growth, It is more likely to be a long-term corporate brand image upgrade.

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