Definition

1. Noun:
   • The fact or instance of two or more things happening or existing at the same time: "Co-occurrence" refers to the temporal property of simultaneous occurrence.
   • An event or situation that happens concurrently with or in connection to another: It can also denote a specific concurrent event or a situation linked to another.

Usage Examples

• Noun:
  • The co-occurrence of high inflation and unemployment presents a major policy challenge.
  • Linguists study the co-occurrence of words to understand language patterns.
  • There was a notable co-occurrence of the aurora borealis and the meteor shower last night.

Advanced Usage

• Statistical/Computational Linguistics: In corpus linguistics and natural language processing, "co-occurrence" specifically refers to the frequency with which words appear together in a given text or corpus, forming the basis for semantic analysis.
  • The algorithm analyzes word co-occurrence to suggest synonyms and related terms.
• In Research and Analysis: Used to describe the simultaneous presence of variables, symptoms, or phenomena, often without implying causation.
  • The study documented a high co-occurrence of anxiety and sleep disorders in the sample population.

Variants and Related Words

• Co-occur (verb): To occur together or simultaneously.
  • These symptoms often co-occur, making diagnosis complex.
• Co-occurring (adjective): Happening at the same time.
  • The patient was treated for co-occurring disorders.

Synonyms

• Concurrence: The fact of two or more events or circumstances happening or existing at the same time.
• Simultaneity: The quality or condition of being simultaneous.
• Coincidence: A remarkable concurrence of events or circumstances without apparent causal connection.

Related Phrases

• Co-occurrence relation: A term used in linguistics and data science to describe the relationship between items that appear together.
  • The model maps co-occurrence relations between products to power the recommendation engine.
• Co-occurrence matrix: A matrix that shows how frequently items co-occur in a dataset.
  • They built a co-occurrence matrix from the text corpus.

Noun

1. the temporal property of two things happening at the same time
   • the interval determining the coincidence gate is adjustable
2. an event or situation that happens at the same time as or in connection with another