{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T03:15:33Z","timestamp":1779333333984,"version":"3.51.4"},"reference-count":35,"publisher":"Oxford University Press (OUP)","issue":"W1","funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,7,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Literature search is a routine practice for scientific studies as new discoveries build on knowledge from the past. Current tools (e.g. PubMed, PubMed Central), however, generally require significant effort in query formulation and optimization (especially in searching the full-length articles) and do not allow direct retrieval of specific statements, which is key for tasks such as comparing\/validating new findings with previous knowledge and performing evidence attribution in biocuration. Thus, we introduce LitSense, which is the first web-based system that specializes in sentence retrieval for biomedical literature. LitSense provides unified access to PubMed and PMC content with over a half-billion sentences in total. Given a query, LitSense returns best-matching sentences using both a traditional term-weighting approach that up-weights sentences that contain more of the rare terms in the user query as well as a novel neural embedding approach that enables the retrieval of semantically relevant results without explicit keyword match. LitSense provides a user-friendly interface that assists its users to quickly browse the returned sentences in context and\/or further filter search results by section or publication date. LitSense also employs PubTator to highlight biomedical entities (e.g. gene\/proteins) in the sentences for better result visualization. LitSense is freely available at https:\/\/www.ncbi.nlm.nih.gov\/research\/litsense.<\/jats:p>","DOI":"10.1093\/nar\/gkz289","type":"journal-article","created":{"date-parts":[[2019,4,11]],"date-time":"2019-04-11T00:38:38Z","timestamp":1554943118000},"page":"W594-W599","source":"Crossref","is-referenced-by-count":51,"title":["LitSense: making sense of biomedical literature at sentence level"],"prefix":"10.1093","volume":"47","author":[{"given":"Alexis","family":"Allot","sequence":"first","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6036-1516","authenticated-orcid":false,"given":"Qingyu","family":"Chen","sequence":"additional","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sun","family":"Kim","sequence":"additional","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberto","family":"Vera\u00a0Alvarez","sequence":"additional","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Donald C","family":"Comeau","sequence":"additional","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W John","family":"Wilbur","sequence":"additional","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8301-9553","authenticated-orcid":false,"given":"Zhiyong","family":"Lu","sequence":"additional","affiliation":[{"name":"National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2019,4,25]]},"reference":[{"key":"2019062808123774500_B1","doi-asserted-by":"crossref","first-page":"937","DOI":"10.1038\/nbt.4267","article-title":"How user intelligence is improving PubMed","volume":"36","author":"Fiorini","year":"2018","journal-title":"Nat. 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