Learn in the textbookBI, Data Warehouse, and Mining
DefinitionCo-occurrence keywords (共起キーワード) are sets of words that tend to appear together in the same sentence or document.
Explanation“Co-occurrence” means happening together, and the focus is on how readily words appear in combination. A word's count alone tells you at most what the topic is, while the words that appear with it show how that topic is being discussed. Text mining (テキストマイニング) uses this result as a clue to context.
AnalogyIt is like the way hearing “rain” brings “umbrella” to mind.