DEMIR at TREC Medical 2011: Power of Term Phrases in Medical Text Retrieval

The University of Iowa at TREC 2011: Microblogs, Medical Records and Crowdsourcing

The Text Retrieval and Text Mining group at the University of Iowa participated in three tracks, all new tracks introduced this year: Microblog, Medical Records (Med) and Crowdsourcing. Details of our strategies are provided in this paper. Overall our effort has been fruitful in that we have been able to understand more about the nature of medical records and Twitter messages, and also the meri...

RMIT at TREC 2011 Microblog Track

This paper describes our submission to the TREC 2011 microblog task. For the experiments, we use our new self-index search engine, NeWT, to support ranked search in the Twitter document corpus. We use a combination of phrase queries and degrading conjunctive Boolean intersection to improve retrieval effectiveness. Keywords-self-index; full-text search, phrases, threshold; intersection

IRIT at TREC 2011: Evaluation of Query Expansion Techniques for Medical Record Retrieval

In TREC 2011, we are motivated to participate in the medical record retrieval task, namely TRECMed. Our research focused on the evaluation of term weighting models and query expansion techniques within the medical record retrieval task. We compared the performance of different state-of-the-art term weighting models for retrieving patient records that might best suit the clinical information nee...

DEMIR at ImageCLEFMed 2011: Evaluation of Fusion Techniques for Multimodal Content-based Medical Image Retrieval

This paper present the details of participation of DEMIR (Dokuz Eylul University Multimedia Information Retrieval) research team to the context of our participation to the ImageCLEF 2011 Medical Retrieval task. This year, we evaluated fusion and re-ranking method which is based on the best low level feature of images with best text retrieval result. We improved results by examination of differe...

Concept-Centric Indexing and Retrieval on Medical Text