From Lexicon to Deep Learning: Choosing the Right Sentiment Classifier

Sentiment analysis has become essential for understanding customer feedback and social media trends. This guide compares two fundamentally different approaches—VADER's lightweight lexicon-based method and RoBERTa's powerful transformer-based model—helping practitioners choose the right tool for their use case. By providing hands-on implementation and an interactive dashboard, the guide bridges the gap between traditional NLP and modern deep learning techniques.