求翻译：根据各查询片段在查询历史中的新鲜度fre(qi)和兴趣度pre(qi)，得到用户偏好查询片段qi的程度（即查询片段qi的重要程度wi），再根据wi对各查询片段进行重要程度排序；是什么意思？

According to the history of query fragments in the query freshness fre (qi) and the degree of interest pre (qi), qi be the user's preferred level of query fragments (ie, the importance of the query fragments qi wi), then for each query based on fragments wi order of importance;

In accordance with the query fragment in the query in the history of the freshness fre (qi) and interest (qi) to receive pre user preferences for enquiries Qi fragments the extent of qi (i.e. , query fragments Wi) and then in accordance with an important degree Wi fragments of the query sequence for

正在翻译，请等待...

Based on the freshness of query fragments in the query in the history of fre (QI) and the interest of pre (QI), user preference query fragment level of Qi (qi how important Wi query fragment), again based on criticality sort Wi query fragments;

According to the history of query fragments in the query freshness fre (qi) and the degree of interest pre (qi), qi be the user's preferred level of query fragments (ie, the importance of the query fragments qi wi), then for each query based on fragments wi order of importance;