Internet business information retrieval and utilization experiment report
Internet business information retrieval and utilization experiment report
Experimental project name: Internet business information retrieval and utilization
Purpose:
1. Understand the basic idea of using the Internet for data retrieval.
2. Master the main methods of using the Internet for data retrieval.
Experimental situation and experimental results: The experimental search journal chapters use the "web search" function of the search engine. The search report data mainly uses "news search" and is supplemented by web search function. Generally speaking, the "news" referred to by the news search engine is not the narrow "news" specifically referred to by journalism, but the collective title of the information. In the search practice, when querying the information, the professional metropolis first uses the news search function of the news search engine or the search engine.
At present, the most famous and commonly used news search engine in China is Baidu and China.
Baidu News Search Engine is "the world's largest Chinese news search platform, releasing 80,000-100,000 news every day. The news sources include more than 500 comprehensive and local news websites, professional and industry websites, government departments and organizations, and newspapers and magazines. TV media website". Baidu News automatically updates the news on the Internet every 5 minutes, and provides a regional attribute for each news based on the content, which can be used to retrieve instant local news from 34 provinces and autonomous regions across the country.
The China Search Alliance, initiated by China Search, is an open-ended consortium with search engine adoption as its core. The membership of the alliance has grown to more than 1,000, including almost all national and provincial newspaper websites, and a certain amount of traffic. The place with the industry newspaper website. The "third-generation intelligent search engine" searched in China updates news content every ten minutes, and is one of the "Chinese search engines with the highest frequency of global data updates."
Due to the different search techniques of the two, their grammar functions and requirements for search terms are slightly different. The page elements of the search results also have their own characteristics. The different sources of information and update frequency will inevitably lead to the same word search. The difference, or more, is less, or there is nothing, or repeating each other. Therefore, the two need to be used together to avoid missed detection and duplication as much as possible to ensure the search results are as comprehensive as possible. 1. Targeted search engine
The results obtained by querying with different search engines are often very different, because there are many differences in their design goals and development trends, such as: dejanews is a search engine dedicated to usenet, and liszt is for postal delivery. List, irc, etc. search engines.
2. Step by step refinement
Clicking on the search engine's classification layer by layer is very effective for some data queries with uncertain keywords. Yahoo sorts out all kinds of information on the Internet, and it is very detailed. There are many categories such as leisure and sports, entertainment, health and medicine, art and humanities, and there are many categories of links that are divided into many small classes, one layer after another. As the ground enters the link, the classification becomes more and more detailed, and it is getting closer and closer to your goal. Because they are all connected, it is convenient and simple to use. I don't have to say more.
3. Select the query method according to the requirements
If you need to quickly find some more relevant information, you can use the search function of the directory search engine, such as using yahoo. If you want to get some system information about a certain aspect, you can use the directory to search at the first level. If the information you are looking for is relatively unpopular, you should use a large full-text search engine to find, such as altavista or hotbot, you can query more than 200 search engines at the same time.
7. Use options to define the query
More and more search engines are beginning to offer more query options. With these options, people can easily construct more complex search patterns, perform more accurate queries, and better control the display of query results.
8. Limit the search to specific areas as much as possible
For example, in the yahoo Chinese website, you need to find computer-related knowledge, then you do not need to let the search engine find in other categories such as leisure and sports, health and medicine, art and humanities. You can go to the "Computer & Internet" category and check "Retrieve the website under this directory".
9. Use a more specific vocabulary
For example, instead of "clothing", use "suit"; use "flower" instead of "flower". But try to delete some synonyms or synonyms.
10. Specify the field in which the keyword appears
Add t: before the keyword, the search engine will only query in the website name, that is, only the website that contains the keyword in the website name.
Add u: before the keyword, the search engine will only query in the URL.
11. Limit the scope of the query
The stronger the ability to limit the scope, the more accurately you can find the information you need. The scope limits provided by search engines generally have a classification scope, geographic scope, time range, site type range, and other special scopes. Some search engines offer a number of special scope restrictions, such as domain name and file type. These range restrictions and implementation methods vary: some by adding special characters before the keyword, and some by drop-down menus.
12. Try to use as few spaces as possible
When inputting Chinese characters as keywords, do not add unnecessary spaces after the Chinese characters, because spaces will be recognized as special operators, which have the same effect as and. For example, if you enter the keyword "computer", then it will not be queried as a complete word "computer". Because there are spaces in the middle, it will be considered that you need to find all the "electric" and "brains". The two-word document, this range is much more than the "computer" keyword search results, more importantly, it deviates from the original meaning.
13 modify the default search engine of the IE browser
On the toolbar of ie4.0/ie5.0, click on the "Search" icon, ie will call the default search engine excite for you to retrieve. To change the default search engine, you must change the win98 registry. The modification method of ie4.0 is: close ie, open the registry editor, find [hkey_current_user\software\microsoft\internet explorer\main], double-click "find" in the right pane, enter the default search engine URL to be changed, for example Change the default search engine to google, type / at this time.
Experimental project name: Internet business information retrieval and utilization
Purpose:
1. Understand the basic idea of using the Internet for data retrieval.
2. Master the main methods of using the Internet for data retrieval.
Experimental situation and experimental results: The experimental search journal chapters use the "web search" function of the search engine. The search report data mainly uses "news search" and is supplemented by web search function. Generally speaking, the "news" referred to by the news search engine is not the narrow "news" specifically referred to by journalism, but the collective title of the information. In the search practice, when querying the information, the professional metropolis first uses the news search function of the news search engine or the search engine.
At present, the most famous and commonly used news search engine in China is Baidu and China.
Baidu News Search Engine is "the world's largest Chinese news search platform, releasing 80,000-100,000 news every day. The news sources include more than 500 comprehensive and local news websites, professional and industry websites, government departments and organizations, and newspapers and magazines. TV media website". Baidu News automatically updates the news on the Internet every 5 minutes, and provides a regional attribute for each news based on the content, which can be used to retrieve instant local news from 34 provinces and autonomous regions across the country.
The China Search Alliance, initiated by China Search, is an open-ended consortium with search engine adoption as its core. The membership of the alliance has grown to more than 1,000, including almost all national and provincial newspaper websites, and a certain amount of traffic. The place with the industry newspaper website. The "third-generation intelligent search engine" searched in China updates news content every ten minutes, and is one of the "Chinese search engines with the highest frequency of global data updates."
Due to the different search techniques of the two, their grammar functions and requirements for search terms are slightly different. The page elements of the search results also have their own characteristics. The different sources of information and update frequency will inevitably lead to the same word search. The difference, or more, is less, or there is nothing, or repeating each other. Therefore, the two need to be used together to avoid missed detection and duplication as much as possible to ensure the search results are as comprehensive as possible. 1. Targeted search engine
The results obtained by querying with different search engines are often very different, because there are many differences in their design goals and development trends, such as: dejanews is a search engine dedicated to usenet, and liszt is for postal delivery. List, irc, etc. search engines.
2. Step by step refinement
Clicking on the search engine's classification layer by layer is very effective for some data queries with uncertain keywords. Yahoo sorts out all kinds of information on the Internet, and it is very detailed. There are many categories such as leisure and sports, entertainment, health and medicine, art and humanities, and there are many categories of links that are divided into many small classes, one layer after another. As the ground enters the link, the classification becomes more and more detailed, and it is getting closer and closer to your goal. Because they are all connected, it is convenient and simple to use. I don't have to say more.
3. Select the query method according to the requirements
If you need to quickly find some more relevant information, you can use the search function of the directory search engine, such as using yahoo. If you want to get some system information about a certain aspect, you can use the directory to search at the first level. If the information you are looking for is relatively unpopular, you should use a large full-text search engine to find, such as altavista or hotbot, you can query more than 200 search engines at the same time.
7. Use options to define the query
More and more search engines are beginning to offer more query options. With these options, people can easily construct more complex search patterns, perform more accurate queries, and better control the display of query results.
8. Limit the search to specific areas as much as possible
For example, in the yahoo Chinese website, you need to find computer-related knowledge, then you do not need to let the search engine find in other categories such as leisure and sports, health and medicine, art and humanities. You can go to the "Computer & Internet" category and check "Retrieve the website under this directory".
9. Use a more specific vocabulary
For example, instead of "clothing", use "suit"; use "flower" instead of "flower". But try to delete some synonyms or synonyms.
10. Specify the field in which the keyword appears
Add t: before the keyword, the search engine will only query in the website name, that is, only the website that contains the keyword in the website name.
Add u: before the keyword, the search engine will only query in the URL.
11. Limit the scope of the query
The stronger the ability to limit the scope, the more accurately you can find the information you need. The scope limits provided by search engines generally have a classification scope, geographic scope, time range, site type range, and other special scopes. Some search engines offer a number of special scope restrictions, such as domain name and file type. These range restrictions and implementation methods vary: some by adding special characters before the keyword, and some by drop-down menus.
12. Try to use as few spaces as possible
When inputting Chinese characters as keywords, do not add unnecessary spaces after the Chinese characters, because spaces will be recognized as special operators, which have the same effect as and. For example, if you enter the keyword "computer", then it will not be queried as a complete word "computer". Because there are spaces in the middle, it will be considered that you need to find all the "electric" and "brains". The two-word document, this range is much more than the "computer" keyword search results, more importantly, it deviates from the original meaning.
13 modify the default search engine of the IE browser
On the toolbar of ie4.0/ie5.0, click on the "Search" icon, ie will call the default search engine excite for you to retrieve. To change the default search engine, you must change the win98 registry. The modification method of ie4.0 is: close ie, open the registry editor, find [hkey_current_user\software\microsoft\internet explorer\main], double-click "find" in the right pane, enter the default search engine URL to be changed, for example Change the default search engine to google, type / at this time.
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