Data & Evaluation
Glossary
Embedding
A numeric vector that represents the meaning of text, an image or another object so that similar items sit close together.
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An embedding maps content into a list of numbers in a high-dimensional space. Items with similar meaning end up near each other, which lets software measure similarity with distance metrics such as cosine similarity. Embeddings are the backbone of semantic search, clustering and retrieval-augmented generation, because they let a system find relevant material without matching exact keywords.
Related terms
Vector Database
A database optimised for storing embeddings and finding the nearest vectors quickly.
Retrieval-Augmented Generation
A technique that lets a model look up relevant documents and include them in its answer, improving accuracy and freshnes...
Transformer
A neural network architecture that uses self-attention to weigh the importance of every word in a sequence relative to e...
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