Information about public health has a very important role not only for health practitioners, but also for goverment. The importance of health information can also affect the emotional changes that occur in the community, especially if there is news about the spread of infectious disease (epidemic) (Kumar A. et al., 2012)
will be tested with new additional parameters, ie symptoms parameters. The value of any twitter user sentiment is determined based on adjectives, verbs, and adverbs that contained in the sentence. The method that we used to find the semantic value of adjectives is corpus-based method. While for finding the semantic value of the verb and adverb we used a dictionary-based method.
Keywords: Twitter, epidemic, sentiment classification, scoring methodCopyright © 2017 Universitas Ahmad Dahlan. All rights reserved.
IntroductionInformation has a very important role in enhancing our knowledge and perspective about the environment and the outside world. As well as information about health, is needed by the community, so the individual"s health condition can be maintained. Poor access to health facilites in Indonesia make people seemed not to care about health information. On the other hand, most of the media in Indonesia rarely present information about health, whereas the number of the disease and the death rate could be reduced if people get adequate health information. Lack of health information will make people more susceptible to the dangers of the disease.The importance of health information can also affect the emotional changes that occur in society, especially if there is news about the spread of infectious diseases (epidemic) in a particular area at a time. Based on the research of Zhu, et al., [1] stated that at the moment there is information about outbreaks of infectious diseases, the majority of people that being interviewed (96.4%) showed changes in negative emotions such as panic (54.8%), anxiety (34.0%), and fear (7.6%). Real example of the emotional changes that caused by the disease actually happened when there is ebola outbreak in particular country, the economic level become decreasing because affected by the disease. From these examples it can be concluded that information on health have a crucial role in the life of society, and so we need a reliable system to obtain accurate and appropiate information about health.To obtain accurate information we need a robust monitoring system. Monitoring information on public health has a very important role not only for health practitioners such as doctors, health specialist, nurses, and other health practitioners, but also for the goverment, particularly the health department. To do this surveillance, the supervisor collecting data systematically and continously, followed by analysis and interpretation of data which related to health event. The data results can be used to gain a better understanding of the health status of a population in order to plan, implement, describe, and evaluate public health programs to
