2. The method of claim 1 , wherein determining a first weight of the tendency of the certain vertical search type for a certain query term based on the search log further includes: determining a search weight X/Y, wherein X indicates a number of searches based on the certain query term performed by the certain type of vertical search engine during a specified period of time, and Y indicates a number of all searches performed by the certain type of vertical search engine during the specified period of time; determining a click weight N/M, wherein N indicates a number of clicked links among the search results for the certain query term of the certain type of vertical search engine during the specified period of time, and M indicates a number of links that have been clicked among all search results in a page of the certain type of vertical search engine during the specified period of time; and obtaining the first weight of the tendency of the certain type of vertical search for the certain query term by performing a weighted calculation on the search weight and the click weight.
2. The method of claim 1 , wherein determining a first weight of the tendency of the certain vertical search type for a certain query term based on the search log further includes: determining a search weight X/Y, wherein X indicates a number of searches based on the certain query term performed by the certain type of vertical search engine during a specified period of time, and Y indicates a number of all searches performed by the certain type of vertical search engine during the specified period of time; determining a click weight N/M, wherein N indicates a number of clicked links among the search results for the certain query term of the certain type of vertical search engine during the specified period of time, and M indicates a number of links that have been clicked among all search results in a page of the certain type of vertical search engine during the specified period of time; and obtaining the first weight of the tendency of the certain type of vertical search for the certain query term by performing a weighted calculation on the search weight and the click weight. 3. The method of claim 2 , wherein determining a second weight of the tendency of the certain vertical search type for the certain query term based on the click log further includes: determining the second weight of the tendency as y/x, wherein x indicates a number of searches based on the certain query term performed by the web search engine during the specified period of time, and y indicates a number of links corresponding to the certain type of vertical search that have been clicked among web search results for the certain query term.