Vertical Search

Vertical search is an industry professional for a search engine, search engine breakdown and extension of certain types of web library of information for a specific integration of targeted sub-fields to extract the required data for processing and then to some form to the user. Relatively large amount of general search engine information, check is not accurate, deep enough and so on to the new search engine service model, by targeting a specific area of ​​a particular population or a particular needs of a certain value of information and related services. The feature is "specialized, sophisticated, deep," and has the color industry, compared with the general mass of information search engines disorder, vertical search engines are even more focused, specific and thorough.IntroductionVertical search engine is a relatively large amount of information on general search engines, query is not accurate, deep enough and so on to the new search engine service model, by targeting a specific area of ​​a particular population or a particular needs of a certain the value of information and related services. The feature is "specialized, sophisticated, deep," and has the color industry, compared with the general mass of information search engines disorder, vertical search engines are even more focused, specific and thorough.Edit this section vertical search engines and the difference between an ordinary Web searchVertical search engines and ordinary web search engine, the biggest difference is the structure of web information extraction of information, that is, unstructured web data extraction of structured information into a specific data, like Web search page for the smallest unit is , based on visual analysis is based on block web pages for the smallest unit of a block, and vertical search is the smallest unit of data structure. Data is then stored in the database, for further processing, such as: go to weight, classification, etc., the last word, the index and then to search for ways to meet the needs of users. Throughout the process, extract data from unstructured data into structured data, after processing through the depth of unstructured and structured manner the way back to the user. Microsoft Research, a technology expert once said: "75% of the content using the search engine does not come out." The birth of vertical search engines is the search for higher levels of the "recall rate" and "precision rate." Vertical search engines through the industry in the field of information model and user model structured to collect or re-organization, to provide more and more professional, personalized services industry.Edit this paragraph application directionPerpendicular to the direction of many search engine applications, such as Enterprise Library search, supply and demand information search engine, shopping search, property search, talent search, map search, mp3 search, image search ... almost all walks of life all kinds of information can be further refined into the type of vertical search engines. To give an example to illustrate would be easier to understand, such as shopping search engine, the overall process is as follows: crawls pages, the information collected on web product, extracted product name, price, Introduction ... ... Introduction to the laptop even further subdivided into "brand, model, CPU, memory, hard disk, display, ..." and then cleaned the information, go to weight, classification, analysis and comparison, data mining, the last word index provided by users to search, provided market conditions by analyzing the mining report.