[1] An extended Tracking Radar Echo by Correlation (TREC) technique, called T-TREC technique, has been developed recently to retrieve horizontal circulations within tropical cyclones (TCs) from single Doppler radar reflectivity (Z) and radial velocity (Vr, when available) data. This study explores, for the first time, the assimilation of T-TREC-retrieved winds for a landfalling typhoon, Meranti...

This paper describes an application of the Combination of Expert Opinion technique to combine the results of multiple retrieval methods used on the TREC-2 collection. The methods being combined were weighted by their TREC-1 performance.

Chronic obstructive pulmonary disease (COPD) patients have an increased number of T cells within their lungs. It is unknown whether these T cells, remain there forever or if there is a continuous turnover from the blood. In the adult, there is a significant T lymphocytopoiesis from the thymus producing cells known as recent thymic emigrants (RTEs). T cell receptor excision circles (TREC) are a ...

The Berkeley experiments for TREC-5 extend those of TREC-4 in numerous ways. For routing retrieval we experimented with the idea of term importance in three ways -training on Boolean conjuncts of the most important terms, filtering with the most important terms, and, finally, logistic regression on presence or absence of those terms. For ad-hoc retrieval we retained the manual reformulations of...

For the TREC-5, Category B adhoc task, we examined the effectiveness of two relevance feedback models: an adaptive linear model and a probabilistic model (Sumner & Shaw, 1997). The models were shown to be effective, especially when the relevance assessments of the searchers matched those of the official TREC judges. During feedback, the query was expanded by a large number of terms from the ret...

THISL is an ESPRIT Long Term Research Project focused the development and construction of a system to items from an archive of television and radio news broadcasts. In this paper we outline our spoken document retrieval system based on the ABBOT speech recognizer and a text retrieval system based on Okapi term-weighting . The system has been evaluated as part of the TREC-6 and TREC-7 spoken doc...

AT&T participated in the Spoken Document Retrieval (SDR) track of TREC-7. Our speech retrieval system uses modern Information Retrieval (IR) methods in conjunction with in-house automatic speech recognition. The novel feature of our TREC-7 work is the use of document expansion to reduce the performance loss due to ASR errors. Results show that retrieval from automatic transcriptions of speech i...

In this paper, we outline our experiments carried out at the TREC 2009 Blog Distillation Task. Our system is based on a plain text index extracted from the XML feeds of the TREC Blogs08 dataset. This index was used to retrieve candidate blogs for the given topics. The resulting blogs were classified using a Support Vector Machine that was trained on a manually labelled subset of the TREC Blogs0...