DOS - Drug Opinion Spanish corpus

Description:

The Drug Opinion Spanish (DOS) corpus has been extracted from the web portal https://www.mimedicamento.es which is an independent platform where users share their experiences with medicines. It consists of 877 comments on the 30 drugs that had received the most reviews on this web portal as of March 14, 2017. Each comment contains information on the date it was posted, the gender and age of the consumer, the ailment treated, the textual opinion and a star rating for the following satisfaction categories: overall, efficacy, number of side effects, severity of side effects and ease of ingestion. In addition, each comment has been annotated at the aspect level with the side effects described in it and with a polarity and intensity label related to the patient's opinion. The corpus has 3,784 sentences containing a total of 2,230 side effects, of which 98 are positive, 2,119 negative and 13 neutral. In relation to the intensity of the side effects, 655 are of high intensity, 1,486 of medium intensity and 89 of low intensity.

Citation:

@inproceedings{jimenez2017corpus,
  title={Corpus annotation for aspect based sentiment analysis in medical domain},
  author={Jim{\'e}nez-Zafra, Salud Mar{\i}a and Mart{\i}n-Valdivia, M Teresa},
  year={2017},
  booktitle={Proceedings of the 2nd International Workshop on Extraction and Processing of Rich Semantics from Medical Texts}
}