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Closed domain passage retrieval, e.g. biomedical passage retrieval presents additional challenges such as specialized terminology, more complex and elaborated queries, scarcity in the amount of available data, among others. However, closed domains also offer some advantages such as the availability of specialized structured information sources, e.g. ontologies and thesauri, that could be used to improve retrieval performance. This paper presents a novel approach for biomedical passage retrieval which is able to combine different information sources using a similarity matrix fusion strategy based on convolutional neural network architecture. The method was evaluated over the standard BioASQ dataset, a dataset specialized on biomedical question answering. The results show that the method is an effective strategy for biomedical passage retrieval able to outperform other state-of-the-art methods in this domain.<\/jats:p>","DOI":"10.3233\/jifs-179887","type":"journal-article","created":{"date-parts":[[2020,6,19]],"date-time":"2020-06-19T12:05:40Z","timestamp":1592568340000},"page":"2239-2248","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Deep fusion of multiple term-similarity measures for biomedical passage retrieval"],"prefix":"10.1177","volume":"39","author":[{"given":"Andr\u00e9s","family":"Rosso-Mateus","sequence":"first","affiliation":[{"name":"Universidad Nacional de Colombia, Bogot\u00e1, Colombia"}]},{"given":"Manuel","family":"Montes-y-G\u00f3mez","sequence":"additional","affiliation":[{"name":"Laboratorio de Tecnolog\u00edas del Lenguaje INAOE, Puebla, Mexico"}]},{"given":"Paolo","family":"Rosso","sequence":"additional","affiliation":[{"name":"Universitat Polit\u00e9cnica de Val\u00e9ncia, Valencia, Spain"}]},{"given":"Fabio A.","family":"Gonz\u00e1lez","sequence":"additional","affiliation":[{"name":"Universidad Nacional de Colombia, Bogot\u00e1, Colombia"}]}],"member":"179","published-online":{"date-parts":[[2020,6,17]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"crossref","unstructured":"AzzopardiL. 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