ICTNET at Session Track TREC 2011

1.Introduction Following several methods of some past publications, among these we refined an important idea that related queries could be derived from queries submitted within the same session. As the browsers not just provide the previous queries but more informations,so we could use these informations to build a expert database for a special user, base on the database ,we could analysis some fixed behaviors of the user, so then forecast what information he really wants, rerank the results from search engine and give them to the user finally. The whole process is the session trec works on:Providing the really information to different user, so we can make the search engine more efficient and smarter. The rest of paper is structured as follows. In section 2 we discuss the ideal of session type. In section 3 we descripte the classification we used. In section 4 we explain the experiment and result we submitted ,Finally we make a brief conclusion and a plan for the future work. 2.Session Type According our expreience,when using the web search engine to search our konwledge ,we may not always find the most suitable result at once, especially for some unkonwn problems ,we even cannot use the right query to describe it.At the time ,we may firstly describe it using some words to from a query as closely as we thought,then we scan the results provided by search engine, during this time ,according to the information provides by the webpages we scaned, we may know some new konwledge and then use it to organize a query to search engine, and then repeat the previous behavior until we find the satisfied answer.Based the previous work,we could know the current query and the previous ones could form some session types,and when modifing query is adjusting different types to get better result. In general,The session types have three as follows[2]: The three types are all have some a ssociations in query content or meanings,but in real work we can find the adjacent two query contain different purpose totally,they belong to two different search respectively,so we add a type to Separation. In this case,two search have no relationship (or concern) with each other. 3. Classification For each previous query,the offical data have provide the top ten or even more search results from Yahoo after manual handling. For each final result,we could provide up to 2000 items for each query,So how could …