Experiment Report of TREC 2005 Genomics Track ad hoc Retrieval Task
نویسندگان
چکیده
This report describes the experiments we have conducted on the ad hoc retrieval task of Genomics track at TREC 2005. In the experiment, a number of different techniques were employed, including Porter stemming, MeSH term and gene name identification, Okapi, weighting schemes, query expansion, and concept-based ranking strategy. The results on sample topics are reported. Future improvements, such as utilizing domain-specific knowledge, gene name disambiguation, and pseudo-feedback are discussed.
منابع مشابه
TREC 2005 Genomics Track Experiments at IBM Watson
This paper describes our experiments in the TREC 2005 Genomics Track. For the ad-hoc retrieval task, we study synonym-based query expansion, as well as the effectiveness of a new pseudo-relevance feedback method which is derived from our recent work on semi-supervised learning. For the categorization task, we study various methods for estimating conditional class probability and determining the...
متن کاملUIUC/MUSC at TREC 2005 Genomics Track
We report experiment results from the collaborative participation of UIUC and MUSC in the TREC 2005 Genomics Track. We participated in both the adhoc task and the categorization task, and studied the use of some mixture language models in these tasks. Experiment results show that a structured theme-based language modeling approach is effective in improving retrieval effectiveness for the ad hoc...
متن کاملIIT TREC 2005: Genomics Track
For the TREC-2005 Genomics Track ad-hoc retrieval task, we report on the development of a scalable information retrieval engine based on a relational data model for the integration of structured data and text. Our objectives are to meet the need for the integrated search of heterogeneous data sets of biomedical literature and structured data found in biological databases, and to demonstrate the...
متن کاملLearning Domain-Specific Knowledge from Context--THUIR at TREC 2005 Genomics Track
We(Tsinghua University) participated both Ad Hoc Retrieval Task and Categorization Task in TREC2005 Genomics Track, in which we designed and implemented a serious of methods encompassed learning domain-specific knowledge from context. In Ad Hoc Retrieval Task, internal resource is introduced to expand query, different granularity indexing provides more flexible retrieval space, and pattern disc...
متن کاملTREC 2005 Genomics Track Experiments at DUTAI
This paper describes the techniques we applied for the two tasks of the TREC Genomics track, i.e., ad hoc retrieval and categorization tasks. For the ad hoc retrieval task, we used query expansion, different scoring strategy on different parts of Medline record (Title, Abstract, RN, MH, etc.) and pseudo relevance feedback. Our submitted run DUTAdHoc2 obtained a MAP of 0.2349. For the categoriza...
متن کامل