Zero-shot classification with embeddings

## Zero-shot classification with embeddings In this notebook we will classify the sentiment of reviews using embeddings and zero labeled data! The dataset is created in the [Get_embeddings_from_dataset Notebook](Get_embeddings_from_dataset.ipynb). We'll define positive sentiment to be 4- and 5-star reviews, and negative sentiment to be 1- and 2-star reviews. 3-star reviews are considered neutral and we won't use them for this example. We will perform zero-shot classification by embedding descriptions of each class and then comparing new samples to those class embeddings.