How do we talk about doctors and drugs? Sentiment Analysis in forums expressing opinions for medical domain
Objective The main goal of this study is to examine how people express their opinion in medical forums. We analyze the language used in order to determine the best way to tackle sentiment analysis in this domain. Methods We have applied supervised learning and lexicon-based sentiment analysis approa...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad de Jaén |
| Repositorio: | RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén |
| OAI Identifier: | oai:ruja.ujaen.es:10953/7465 |
| Acceso en línea: | https://doi.org/10.1016/j.artmed.2018.03.007 https://www.sciencedirect.com/science/article/pii/S0933365717305407 https://hdl.handle.net/10953/7465 |
| Access Level: | acceso abierto |
| Palabra clave: | Spanish corpus Patient opinions Medical domain Sentiment analysis 004 004.6 004.8 004.91 61 81 |
| Sumario: | Objective The main goal of this study is to examine how people express their opinion in medical forums. We analyze the language used in order to determine the best way to tackle sentiment analysis in this domain. Methods We have applied supervised learning and lexicon-based sentiment analysis approaches over two different corpora extracted from social web. Specifically, we have focused on two aspects: drugs and doctors. We have selected two forums and we have collected corpora for each one: (i) DOS, a Spanish corpus of drug reviews and (ii) COPOS, a Spanish corpus of patients’ opinions about physicians. Results The classification results show that drug reviews are more difficult to classify than those about physicians. In order to understand the difference in the results, we have studied the linguistic features of both corpora. Conclusions Although opinions about physicians and drugs are written in most cases by non-professional users, reviews about physicians are characterized by the use of an informal language while reviews about drugs are characterized by a combination of informal language with specific terminology (e.g. adverse effects, drug names) with greater lexical diversity, making the task of sentiment analysis difficult. |
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