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- W1997632490 abstract "In medical records, negative qualifiers, e.g. no or without, are commonly used by health practitioners to identify the absence of a medical condition. Without considering whether the term occurs in a negative or positive context, the sole presence of a query term in a medical record is insufficient to imply that the record is relevant to the query. In this paper, we show how to effectively handle such negation within a medical records information retrieval system. In particular, we propose a term representation that tackles negated language in medical records, which is further extended by considering the dependence of negated query terms. We evaluate our negation handling technique within the search task provided by the TREC Medical Records 2011 track. Our results, which show a significant improvement upon a system that does not consider negated context within records, attest the importance of handling negation." @default.
- W1997632490 created "2016-06-24" @default.
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- W1997632490 date "2012-08-12" @default.
- W1997632490 modified "2023-10-17" @default.
- W1997632490 title "Exploiting term dependence while handling negation in medical search" @default.
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- W1997632490 doi "https://doi.org/10.1145/2348283.2348471" @default.
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