Browse Definitions :
Definition

information extraction (IE)

Information extraction (IE) is the automated retrieval of specific information related to a selected topic from a body or bodies of text.

Information extraction tools make it possible to pull information from text documents, databases, websites or multiple sources. IE may extract info from unstructured, semi-structured or structured, machine-readable text. Usually, however, IE is used in natural language processing (NLP) to extract structured from unstructured text.

Information extraction depends on named entity recognition (NER), a sub-tool used to find targeted information to extract. NER recognizes entities first as one of several categories such as location (LOC), persons (PER) or organizations (ORG). 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, which algorithms can further process to extract meaning. IE finds meaning by way of other subtasks including co-reference resolution, relationship extraction, language and vocabulary analysis and sometimes audio extraction.

IE dates back to the early days of Natural Language Processing of the 1970’s. JASPER is a system for IE that for Reuters by Carnegie Melon University is an early example. Current efforts in multimedia document processing in IE include automatic annotation and content recognition and extraction from images and video could be seen as IE as well.

Because of the complexity of language, high-quality IE is a challenging task for artificial intelligence (AI) systems.

This was last updated in January 2018

Continue Reading About information extraction (IE)

Networking
  • network management system

    A network management system, or NMS, is an application or set of applications that lets network engineers manage a network's ...

  • host (in computing)

    A host is a computer or other device that communicates with other hosts on a network.

  • Network as a Service (NaaS)

    Network as a service, or NaaS, is a business model for delivering enterprise WAN services virtually on a subscription basis.

Security
  • crypto wallet (cryptocurrency wallet)

    A crypto wallet (cryptocurrency wallet) is software or hardware that enables users to store and use cryptocurrency.

  • zero-day (computer)

    A zero-day is a security flaw in software, hardware or firmware that is unknown to the party or parties responsible for patching ...

  • backdoor (computing)

    A backdoor attack is a means to access a computer system or encrypted data that bypasses the system's customary security ...

CIO
  • outsourcing

    Outsourcing is a business practice in which a company hires a third party to perform tasks, handle operations or provide services...

  • chief operating officer (COO)

    A chief operating officer (COO) is the corporate executive who oversees ongoing business operations within the company.

  • project management

    Project management is the discipline of using established principles, procedures and policies to guide a project from conception ...

HRSoftware
  • team collaboration

    Team collaboration is a communication and project management approach that emphasizes teamwork, innovative thinking and equal ...

  • employee self-service (ESS)

    Employee self-service (ESS) is a widely used human resources technology that enables employees to perform many job-related ...

  • learning experience platform (LXP)

    A learning experience platform (LXP) is an AI-driven peer learning experience platform delivered using software as a service (...

Customer Experience
  • market basket analysis

    Market basket analysis is a data mining technique used by retailers to increase sales by better understanding customer purchasing...

  • marketing stack

    A marketing stack, also called a marketing technology stack, is a collection of technologies used by marketers to perform, ...

  • social media influence

    Social media influence is a marketing term that describes an individual's ability to affect other people's thinking in a social ...

Close