信息检索2（Information retrieval 2）.docVIP

信息检索2（Information retrieval 2） 1. search, its that simple As long as you enter keywords in the search box and press the button, Baidu will automatically find relevant websites and information. Baidu will look for all the information that meets all of your enquiries and rank the most relevant websites or materials. Tip: enter the key word, press the return key on the keyboard (that is, Enter Health), and Baidu will automatically find the relevant website or information. 2. what is the key word? Keyword is that you enter the text in the search box, that is, what you ordered Baidu to search for. You can order Baidu to search for anything, so the key words can be names, websites, news, novels, software, games, constellations, work, shopping, papers,,, Key words can be any combination of Chinese, English, digital, or Chinese and English numerals. For example, you can search for [Westward Journey], [windows], [911], [F-1 racing]. Key words you can enter one or two, three, and four. You can even enter a sentence. For example, you can search [love], [], beauty [mp3 Download], [], [games Daquan suddenly look back, that person but in the lights dim. Tip: you must leave a space between the key words (press the longest key on the keyboard). 3. accurate keywords Baidu search engine rigorous serious, request word is not bad.. For example: enter [[Hsu Chi]] and [Shu Qi] respectively, and search results are different. The input and the computer are different, and the search results are different. Therefore, if you are not satisfied with the search results, it is recommended to check for errors in the input text and search for keywords using different keywords. 4. enter two keywords search By entering multiple keyword searches, you can get more accurate and richer search results. For example, search [Beijing temporary residence permit], you can find tens of thousands of documents. And search [Beijing temporary residence permit], only strictly contain Beijing temporary residence perm