Non-Bipolar Sentiment Assessment of Text Reviews

摘要

With the evolution and blooming of Internet, an indeterminately great number of mankind devote their time profusely for browsing, especially on social media. Public share their perspective in the form of opinions about various entities like ongoing affairs or a particular locality or their shopping experience etc. in internet. In the early stages, individuals practiced writing mode for this motive. But gradually accounting the headway made by technology the channel broadened from text to other diverse modes to convey their opinions like images, audio, video. These means were well received and prevailed so far. Because simple movements of face and pictures convey treasure of information. The voice tune changes along with the change in opinion. Thus these mediums are more descriptive than text. These feelings and conceptions exhibit their sentiments which shape the public opinion. Opinions are usually based on knowledge or experience. It is more concrete whereas Sentiments are feelings one feels about something. An Opinion is composed of Sentiment(s). A particular or group of sentiments leads to a concrete Opinion. Though these two terms are used interchangeably, these two terms are very close but slightly differ in their meanings. People express their held sentiments about an entity socially. A general opinion can be derived or extracted from these sentiments. These Sentiments collectively shape a particular Opinion like positive, negative or neutral which in turn impact and aids other customers, traders, or society in deciding their deals. Additionally, many trends keep recreating dynamically. With this rate of advancement, people keep refreshing their approaches and practices. Hence their sentiments. Thus, these sentiments propagate to others via social media. In the meantime, the pertinent authority can adapt to these changes before the change signals the call and grow wider every day and thus stay connected with customers. Apart from customers, they must be knowledgeable globally with surfacing trends and challenges, new needs and envision the demands. Accordingly, the sentiments circulate swiftly in online system]. But the exiting work on social network sentiment is just to distinguish the sentiment polarity of public opinion i.e., Positive or Negative which can be termed as Bipolarity. Bi-means two and Polarity means two opposite poles or opinions. Current research is confined to bipolar assessment of an opinion and multi-modal sentiment analysis is expecting more attention. This paper mainly presents a survey on these two areas.