Biomedical Text Retrieval System at Korea University

In this paper, we describe our retrieval system used for the primary task of genomics track at this year. Our primary goal in this task is to find a proper method for the domain-specific retrieval environment. To achieve the goal, we have tested several techniques such as a phrase indexing strategy, two query weighting methods, and two post-processing methods such as a document filtering method and a documents reranking method. According to the experimental results, query weighting methods and document filtering methods can improve the performance of the retrieval system, but there still remain a room for improvement.