Embedding
A learned dense vector representation in which geometric proximity is intended to preserve task-relevant similarity or structure.
Representation Space
An embedding maps an object such as text, an image, audio or an identity sample into a fixed-dimensional vector. The useful meaning comes from the training objective and data, not from the vector coordinates individually.
Similarity can then be computed with cosine, dot product or another metric appropriate to the model.
Operational Boundary
Embedding distance is model- and domain-dependent. A universal similarity threshold should not be assumed across model versions or data sources.
Large embedding collections are often indexed with approximate-nearest-neighbor structures such as HNSW.
Related Concepts
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Related technical article: Artificial Intelligence: Philosophy, Theory and Practice.