This year the relevance feedback track further examined relevance feedback with a single document relevance feedback task. Seven groups participated in the track. At this time, relevance judging is on-going and no results are available. This notebook version of the track describes the track, presents the current status of the track, and includes participant summaries.

Our team submitted runs for the first running of the TREC Temporal Summarization track. We focused on the Sequential Update Summarization task. This task involves simulating processing a temporally ordered stream of over 1 billion documents to identify sentences that are relevant to a specific breaking news stories which contain new content. In this paper, we describe our approach and evaluatio...

Early diagnosis and timely treatment of combined immunodeficiency (CID) is extremely important for the child’s future life. At birth, children often have no specific signs disease, but from first months life CID manifests by severe infections that can impact on results further treatment. Detection T-cell lymphopenia determining number receptor excision circles (TRECs) in a dry spot after birth ...

This paper examines the challenges involved in conducting an informal usability case study based on the introduction of a new information retrieval system to experienced users. We present a summary of activities performed during two iterations of usability testing and describe our analysis methodology. This methodology incorporates several grouping and prioritizing methods which provide one of ...

In this study the rankings of IR systems based on binary and graded relevance in TREC 7 and 8 data are compared. Relevance of a sample TREC results is reassessed using a relevance scale with four levels: non-relevant, marginally relevant, fairly relevant, highly relevant. Twenty-one topics and 90 systems from TREC 7 and 20 topics and 121 systems from TREC 8 form the data. Binary precision, and ...

The evaluation of a personalized search systems aims at measuring its performance. Traditional laboratory-based evaluation of the information retrieval systems is challenged because of its lack of user evidence expressing his search context in the data test sets. In this paper, we present evaluation protocols of personalized search system based on enhancing TREC collections with simulated conte...

About thymic output, little is known in HIV-HCV co-infected patients. Thymic output can be measured by T-cell receptor excision circles (TREC) present in the so called "recent thymic emigrants" (RTEs). We have analyzed, by Real time PCR, sj-TREC+ cells in 11 patients with HIV-HCV co-infection; all patients were treated with highly active antiretroviral therapy (HAART), but were naive for interf...

In this paper, we document our efforts to extend our statistical question answering system for TREC-11. We incorporated a web search feature, and novel extensions of statistical machine translation as well as extracting lexical patterns for exact answers from a supervised corpus. Without modification to our base set of thirty-one categories, we were able to achieve a confidence weighted score o...

This paper presents empirical results in cross-lingual information retrieval using English queries to access Chinese documents (TREC-5 and TREC-6) and Spanish documents (TREC-4). Since our interest is in languages where resources may be minimal, we use an integrated probabilistic model that requires only a bilingual dictionary as a resource. We explore how a combined probability model of term t...