This survey zooms into recent research in the area of opinion summarization, which is related to generating effective summaries of opinions so that users can get a quick understanding of the underlying sentiments. Since there are various formats of summaries, the survey breaks down the approaches into the commonly studied aspect-based summariztion and non-aspect based ones (which includes visualization, contrastive summarization and text summarization). This survey also has a listing of opinion related dataset and available demos.
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