The query term expansion subtask was conducted to establish an evaluation framework for information retrieval (IR) systems that focus on the effectiveness of query term expansion techniques. However, the quality of query term expansions are affected by several factors (e.g., IR system using expanded query, quality of initial query, etc.), so it is difficult to evaluate this technique. In this s...

In this report we describe our approach to the known-item search task for TRECVID 2012. We describe how we index available metadata and how we gain additional information about the videos using contentbased analysis. A rule-based query expansion and query reduction method is applied to increase the number of relevant videos in automatic runs. Furthermore, we describe an approach for quick, inte...

This paper presents our system and results for the Feed Distillation task in the Blog track at TREC 2007. Our experiments focus on two dimensions of the task: (1) a large-document model (feed retrieval) vs. a small-document model (entry or post retrieval) and (2) a novel query expansion method using the link structure and link text found within Wikipedia.

We are interested in retrieving information from speech data using phonetic search. We show improvement by expanding the query phonetically using a joint maximum entropy N-gram model. The value of this approach is demonstrated on Broadcast News data from NIST 2006 Spoken Term Detection evaluation.

The Quiet Eye (QE) phenomenon has a robust literature base. However, the specific mechanisms by which the QE enables athletes to be more accurate are still not fully understood. Furthermore, QE has been shown to negate the negative effects of anxiety, but similarly, the specific role it plays is unknown. A more systematic and strategic approach to future research is needed to delineate the diff...

In this paper we investigate the task of automatic generation of slide presentations from academic papers, focusing initially on slide to paper alignment. We compare and evaluate four different alignment systems which utilize various combinations of methods used widely in other alignment and question answering approaches, such as TF-IDF term weighting and query expansion. Our best aligner achie...