In this paper, we introduce our experiments carried out at TREC 2012 session track. Based
on the work of our group in TREC 2011 session track, we propose several methods to …

This paper is an overview of the runs carried out at TREC 2011 Session track, which
proposes several approaches to improve the retrieval performance over one session …

The 2011 Session track aims to study retrieval system performance by providing different
components in a search session. We report on experiments and results based on query …

Past search queries and click-through information within a search session have been
heavily exploited to improve search performance. However, it remains unclear how do these …

In this paper we describe our efforts for the TREC OpenSearch task. Our goal for this year is
to evaluate the effectiveness of:(1) a ranking method using information crawled from an …

This paper described the real-time search system we built for TREC 2013 microblog track.
We focused on query expansion and ranking algorithm and employed different strategies …

ABSTRACT Research in Information Retrieval has traditionally focused on serving the best
results for a single query. In practice however users often enter ill-specified queries which …

This paper presents the DUTIR submission to TREC 2011 Session Track, the task is to test
whether systems can improve their performance for a given query by using previous queries …

Our group has participated into Relevance Feedback (RF) Track in TREC2008. In our
experiments, two kinds of techniques, query expansion and search result re-ranking based …

Traditional information retrieval systems are evaluated with the assumption that each query
is independent. However, during their interactions with search engines, many users find …