Similarity

Specific definitions

Look up similarity in Wiktionary, the free dictionary.

Different fields provide differing definitions of similarity:

In mathematics

• Similarity (geometry), a shape-preserving transformation
• Matrix similarity, a relation between matrices

In computer science

• Similarity function, a function that quantifies the similarity of two objects
  • string metric, aka string similarity
  • semantic similarity in computational linguistics

In other fields

• In engineering, Similitude (model) describe the geometric, kinematic and dynamic 'likeness' of two (or more) systems.
• In psychology, similarity (psychology)
• In music, musical similarity
• In chemistry, chemical similarity

See also

• Same (disambiguation)
• Difference (disambiguation)
• Equality (mathematics)
• Identity (philosophy)