Yelp's engineering teams leverage several advanced techniques to process review content:
Yelp uses "deep text" analysis—specifically and deep learning models —to understand the vast amount of unstructured review data on its platform. This process transforms human language into numerical vectors, allowing Yelp's systems to perform complex tasks like sentiment analysis, spam detection, and personalized recommendations. How Yelp Uses Deep Text Analysis yelp.com
: The platform utilizes sophisticated architectures like BERT (Bidirectional Encoder Representations from Transformers) and LSTMs (Long Short-Term Memory) to predict star ratings and identify sentiment polarity (positive vs. negative). yelp.com