Browse Definitions :
Definition

named entity recognition (NER)

Named entity recognition (NER) is a sub-task of information extraction (IE) that seeks out and categorizes specified entities in a body or bodies of texts. NER is also known simply as entity identification, entity chunking and entity extraction. NER is used in many fields in artificial intelligence (AI) including natural language processing (NLP) and machine learning.

Information extraction depends on NER to find targeted information, using models that function based on grammar or statistical models. NER recognizes entities first as one of several categories such as people, locations, organizations, expressions, percentages and monetary values. Categories are abbreviated: location (LOC), persons (PER) and organizations (ORG), etc. Once the information category is recognized, an information extraction utility extracts the named entity’s related information and constructs a machine-readable document from it that other tools can further process to extract meaning.

As with many difficult tasks in AI, NER challenges are put forth to the development community to encourage development of solutions. Message Understanding Conference (MUC) is one such challenge. Comparably, humans scored a 97.60 percent and 96.95 percent accuracy while the best IE system scored 93.39 percent.

This was last updated in January 2018

Continue Reading About named entity recognition (NER)

SearchCompliance
  • OPSEC (operations security)

    OPSEC (operations security) is a security and risk management process and strategy that classifies information, then determines ...

  • smart contract

    A smart contract is a decentralized application that executes business logic in response to events.

  • compliance risk

    Compliance risk is an organization's potential exposure to legal penalties, financial forfeiture and material loss, resulting ...

SearchSecurity
  • biometric verification

    Biometric verification is any means by which a person can be uniquely identified by evaluating one or more distinguishing ...

  • password

    A password is a string of characters used to verify the identity of a user during the authentication process.

  • biometrics

    Biometrics is the measurement and statistical analysis of people's unique physical and behavioral characteristics.

SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • change control

    Change control is a systematic approach to managing all changes made to a product or system.

  • disaster recovery (DR)

    Disaster recovery (DR) is an organization's ability to respond to and recover from an event that affects business operations.

SearchStorage
  • PCIe SSD (PCIe solid-state drive)

    A PCIe SSD (PCIe solid-state drive) is a high-speed expansion card that attaches a computer to its peripherals.

  • VRAM (video RAM)

    VRAM (video RAM) refers to any type of random access memory (RAM) specifically used to store image data for a computer display.

  • virtual memory

    Virtual memory is a memory management technique where secondary memory can be used as if it were a part of the main memory.

Close