Dense Retrieval for PyTerrier

pyterrier-dr is a PyTerrier plugin that provides functionality for Dense Retrieval.

It provides this functionality primarily through:

1. Transformers for encoding queries/documents into dense vectors (e.g., SBertBiEncoder)

2. Transformers for indexing and retrieval using these dense vectors (e.g., FlexIndex)

This functionality is covered in more detail in the following pages:

• Overview
• Encoding
• Indexing & Retrieval
• Pseudo-Relevance Feedback
• Diversity