Aspect based sentiment analysis goes one step further than typical sentiment analysis by automatically assigning sentiment to predefined categories.
It involves breaking down text into smaller chunks, allowing more granular and accurate insights from data. With aspect based sentiment analysis, it can be distinguished which features of a product or service offering are liked and which ones can be improved.
In typical reviews, consumers often touch on many aspects of a product or service. Complaints or praise for price, quality or ease of use can all be mentioned in one comment. Sentiment analysis at aspect level first determines which categories are being mentioned and then calculates the sentiment for each of those categories. When compiled in aggregate across a large number of reviews, the strengths and weaknesses of a business' product or services surface quickly and actionable insights become obvious instantly.
The first step for aspect based granularity in sentiment analysis is model generation. Using machine learning and a neural network designed for natural language processing, Repustate is able to cluster words and phrases found in text documents into semantically similar clusters, or aspects and then derive a sentiment score for each aspect by using the sentiment analysis API.
This means phrases like "very expensive", "good value for money", "too costly" are all grouped together at a semantic level. Repustate then applies a user-friendly label, like "Price", to each automatically discovered cluster. For example, when analyzing a restaurant these clusters might be "Price", "Quality", "Service", and "Menu variety".
Once the machine learned model has been trained, Repustate can now classify any new text data and identify each and every aspect present in the data. For each aspect found, a sentiment score is determined. This means you can get multiple sentiment scores for each text document, varying in sentiment from positive to negative. And this is exactly what you want as in real-life situations, people often express varying sentiments about the same subject matter.
Aspect based sentiment analysis is by far the quickest way to surface insights and gain a more nuanced understanding of your customer's opinions.