In summary, in this year's Genomics Track, we focused on testing the effectiveness of two language modeling techniques for information retrieval on biomedical text. The general observation is that the two techniques are still effective to some degree on biomedical text. The regularized feedback estimation method is more robust than the original feedback estimation method because it needs less parameter tuning. The HMM-based passage extraction method can outperform paragraph-based passages. However, since the HMM-based method is not designed to extract short passages with very specific information, it needs some modification in order to fit this task. Finally, user relevance feedback is very effective.
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