How to calculate sentiment_score for individual news headlines?

AI & Machine learning
1

Course Name: Natural Language Processing in Trading, 

I was wondering what is the algorithm to calculate the sentiment score of each individuals headlines. the data input  provides directly the sentiment score but I was wondering what is the process to calculate it? In the course we calculte the daily sentiment score being the average of each sentiment score for the day but i don't see how it works to get the individual sentiment score for a headlines.

2

Hi Thomas,



You are right. As mentioned in the video, News Headline Data, the sentiment score was calculated using a lexical approach and then refined and improved. However, we have gone into detail on the various methods to calculate the sentiment score. These are illustrated in detail in the latter part of the course, which includes Bag of words, TF_IDF, Word2Vec, and BERT. 



Hope this helps.