Sanakirja.org

Määritelmät

Substantiivi

1. The act or process by which one thing is embedded in another.
2. (mathematics) A map which, in any of several technical senses, represents the containment of one structure inside another.
3. (topology) A continuous map which is also a homeomorphism between its domain and its image (considered with the subspace topology induced by its codomain).
4. (differential topology) An immersion which is also a topological embedding; equivalently, a diffeomorphism whose image is a submanifold of its codomain.
5. (field theory, Galois theory) A ring homomorphism between fields (the name deriving from the fact that all such maps are injective).
6. (mathematical analysis) A map between metric spaces which preserves distances up to some scaling factor (called the distortion).
7. (category theory) An injective morphism in a concrete category which is also initial.
8. (machine learning, artificial intelligence) A representation of a unit of text (such as a word or token) as a vector, which encodes the context in which it is used.