Quadratic discriminant analysis

{
  "id": "MLC-T-CHM-009717",
  "term": "Quadratic discriminant analysis",
  "field": "Chemistry",
  "definition": "A statistical classification method that separates observations into two or more classes by fitting a quadratic decision boundary between them. Unlike linear discriminant analysis, it assumes that each class has its own covariance matrix, allowing for more flexible and curved boundaries. This technique is applied in chemometrics for pattern recognition and classification tasks when class distributions are not linearly separable.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 431 (https://doi.org/10.1515/pac-2015-0605)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/quadratic-discriminant-analysis/"
}