I am interested in learning more about preprocessing step within the analysis process of big data I need to know more about the recent methodologies, techniques and the relevant research issues.
First of all, as part of the processing of information collected in the Big Data database systems, the sentiment analysis is used very frequently during analytical processes conducted for the needs of scientific research. Sentiment analysis allows you to get an answer to the question, what is, for example, recognizability, what is the awareness, opinion on a specific topic among users of specific Internet portals, websites containing comments from Internet users, and social media portals.
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The issues of the use of information contained in Big Data database systems for the purposes of conducting Business Intelligence analyzes are described in the publications: