2023

Jina Embeddings 2: 8192-Token General-Purpose Text Embeddings for Long Documents

Günther, Michael, Ong, Jackmin, Mohr, Isabelle et al.

Understand

Text embedding models have emerged as powerful tools for transforming sentences into fixed-sized feature vectors that encapsulate semantic information.

  • While these models are essential for tasks like information retrieval, semantic clustering, and text re-ranking, most existing open-source models, especially those built on architectures like BERT, struggle to represent lengthy documents and often resort to truncation.
  • One common approach to mitigate this challenge involves splitting documents into smaller paragraphs for embedding.
  • However, this strategy results in a much larger set of vectors, consequently leading to increased memory consumption and computationally intensive vector searches with elevated latency.

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