(n,k) rule

{
  "id": "MLC-T-CYB-002838",
  "term": "(n,k) rule",
  "field": "Cybersecurity",
  "definition": "A cell is regarded as confidential, if the n largest units contribute more than k % to the cell total, e.g., n=2 and k=85 means that a cell is defined as risky if the two largest units contribute more than 85 % to the cell total. The n and k are given by the statistical authority. In some NSOs [national statistical office] the values of n and k are confidential.",
  "synonyms": [
    "dominance rule"
  ],
  "references": [
    "NIST SP 800-188 from OECD Glossary of Statistical Terms",
    "NIST CSRC Glossary"
  ],
  "url": "https://mlchart.com/terminology/cybersecurity/n-k-rule/"
}