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Non-negative matrix factorization (NMF) is a group of algorithms in linear algebra and data analysis that factorize a non-negative matrix into (usually) two lower-rank non-negative matrices. This approach is useful in various applications, particularly in machine learning, image processing, and data mining. ### Key Concepts 1.

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  1. Linear algebra
  2. Algebra
  3. Fields of mathematics
  4. Mathematics
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