Sentiment analysis concepts

- [Instructor] One of the most popular analysis done … on text is to identify the sentiment expressed … by its author. … Sentiment, in this case, is the overall emotion expressed … in the words people write. … This might be simply positive or negative … but can be other emotions as well. … Organizations try to understand the sentiment … of their customers and users based … on their communications and social media posts. … This is referred to as sentiment analysis. … Sentiment analysis is text mining technique used … to identify the intent or opinion in text data. … Users communicate their opinions … and needs through text in the form of reviews, … emails, chats, et cetera. … Sentiment analysis looks at a corpus of text, … possibly multiple sentences … to understand the overall sentiment of the author. … There are multiple techniques used for this. … The most popular being the bag of words approach. … In this technique, … we look for specific words in the text … and conclude on the overall sentiment …