The Society of Digital Information and Wireless Communications (SDIWC)
Sentiment Analysis (SA) is one of a number of fields in which "Big data" requires processing. The term "Sentiment" refers to the feelings, beliefs, emotions and opinions that people express in relation to certain matters in written form, more often than not in online media such as social networks. Sentiment analysis can provide enterprises with valuable insights into, for example, how customers regard their products. When sentiments are collected from social networks over a period of time, the amount of data can indeed be "Big".