DiffCSE

DiffCSE is a contrastive learning framework for learning sentence embeddings from unlabeled data. It uses a difference-based loss function to compare two sentence embeddings, one generated by masking out the sentence and filling it in with generated data with a masked language model, and training a model to produce representations that accurately capture the semantic similarity between sentences. This approach is demonstrated to be effective for a variety of downstream tasks, such as multi-document summarization, sentence similarity assessment, and text classification.