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Information Extraction

Information extraction (IE) is a type of information retrieval whose goal is to automatically extract structured information from unstructured machine-readable documents, generally human language texts by means of natural language processing (NLP).

Due to the difficulty of the problem, current approaches to IE focus on narrowly restricted domains. An example is the extraction from news wire reports of corporate mergers, such as denoted by the formal relation:

MergerBetween(company1,company2,date),

from an online news sentence such as:

"Yesterday, New-York based Foo Inc. announced their acquisition of Bar Corp."

A broad goal of IE is to allow computation to be done on the previously unstructured data. A more specific goal is to allow logical reasoning to draw inferences based on the logical content of the input data. Structured data is semantically well-defined data from a chosen target domain, interpreted with respect to category and context.

From Wikipedia under the GNU Free Documentation License
Sun Jul 24 08:12:46 2011

Matching Results for Information Extraction:

WordNet
Chai (2000) uses WordNet for information extraction, ie the identification and extraction of domain specific target information from a document [....]

origin
The beginning of something. The source of a river, information, goods, etc. (mathematics) The point at which the axes of a coordinate system ...

atlas
1991: Alan C. F. Colchester and David J. Hawkes [eds.], Information Processing ... 3D morphometric anatomical atlantes which is based on the extraction of line and ...

From Wiktionary under the GNU Free Documentation License
Mon Apr 16 01:56:22 2012


Matching Results for Information Extraction:

Abortion
Sourced A. Abolition of a woman's right to abortion, when and if she wants it, amounts to compulsory maternity: a form of rape by the State. Edward Abbey, One Life at a ...

Torture
The strong will resist and the weak will say anything to end the pain. Ulpian; Torture is senseless violence, born in fear... torture costs human lives but does not save ...

Vannevar Bush
The world has arrived at an age of cheap complex devices of great reliability; and something is bound to come of it.

From Wikiquote under the GNU Free Documentation License
Thu Aug 4 06:38:00 2011


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