Context is Gold to find the Gold Passage: Evaluating and Training Contextual Document Embeddings

A limitation of modern document retrieval embedding methods is that they typically encode passages (chunks) from the same documents independently, often overlooking crucial contextual information from the rest of the document that could greatly improve individual chunk representations.In this work, we introduce ConTEB (Context-aware Text Embedding Benchmark), a benchmark designed to evaluate retrieval models on their ability to leverage document-wide context. Our results show that state-of-the-art embedding models struggle in retrieval scenarios where context is required. To address this limitation, we propose InSeNT (In-sequence Negative Training), a novel contrastive post-training approach which combined with late chunking pooling enhances contextual representation learning while preserving computational efficiency. Our method significantly improves retrieval quality on ConTEB without sacrificing base model performance. We further find chunks embedded with our method are more robust to suboptimal chunking strategies and larger retrieval corpus sizes. We open-source all artifacts atthis https URL.

@article{conti2025_2505.24782,
  title={ Context is Gold to find the Gold Passage: Evaluating and Training Contextual Document Embeddings },
  author={ Max Conti and Manuel Faysse and Gautier Viaud and Antoine Bosselut and Céline Hudelot and Pierre Colombo },
  journal={arXiv preprint arXiv:2505.24782},
  year={ 2025 }
}