Search Method, Search Apparatus and Search Engine System

Techniques for performing searches using models generated from data mining. These techniques may include receiving a query including a search string. If a portion of the search string matches with a category of relationship data, the portion of the search string may be replaced with a label of the category to generate a modified query. Based on the modified query and models generated from mining historical search data, intent of the query may be determined, and searches may be then performed.