Outline
Word search engine technology is the key for the user submits a query string for the query processing based on the user's keyword string matching method with a variety of techniques.
Data Processing
We must first understand the word technology to understand a concept. That is, query processing, when a user submits a query to the search engine, the search engine receives the user's information to do a series of processing.
1 The first is related to the database which indexes the information, which is the query processing.
Then query processing is how does it work? Very simple, the user submits the string is not more than three words, it will go directly to the database index terms. More than four characters, the first with separators such as spaces, punctuation, will be split into several sub-query string query string.
For example. "What is Google segmentation techniques," we will split this word into the "what, Google, word technology." This segmentation method is called reverse matching.
(2) and then look at the user's vocabulary word for duplicate
If so, will drop out, a default vocabulary. Next, check the user submits the string, there are no letters and numbers. If so, put the letters and numbers that one word.
This is the search engine query processing.
Word search engine technology is the key for the user submits a query string for the query processing based on the user's keyword string matching method with a variety of techniques.
Data Processing
We must first understand the word technology to understand a concept. That is, query processing, when a user submits a query to the search engine, the search engine receives the user's information to do a series of processing.
1 The first is related to the database which indexes the information, which is the query processing.
Then query processing is how does it work? Very simple, the user submits the string is not more than three words, it will go directly to the database index terms. More than four characters, the first with separators such as spaces, punctuation, will be split into several sub-query string query string.
For example. "What is Google segmentation techniques," we will split this word into the "what, Google, word technology." This segmentation method is called reverse matching.
(2) and then look at the user's vocabulary word for duplicate
If so, will drop out, a default vocabulary. Next, check the user submits the string, there are no letters and numbers. If so, put the letters and numbers that one word.
This is the search engine query processing.
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