The University of Iowa at CLEF 2014: eHealth Task 3
Chao Yang, Sanmitra Bhattacharya, Padmini Srinivasan · CLEF (Working Notes) · 2014
The task 3 of CLEF eHealth Evaluation lab aims to help laypeople get more accurate information from health related documents. In this task, we did several experiments and tried dierent technolo- gies to improve the retrieval performance. We tried to clean the original dataset and did sentence level retrieval. We explored dierent parameter settings for pseudo relevance feedback. Description and Narrative was utilized to expand the query as well. We also modied Markov Random Field (MRF) model to expand the query using medical phrase only. In our training set (2013 test set), using those methods can signicantly im- prove the retrieval performance by 8-15% from baseline. We submitted 4 runs. Results on 2014 test set suggest that the technologies we used except MRF have the potential to improve the performance for the top 5 retrieved results.