Information extraction is the part of a greater puzzle which deals with the problem of devising automatic methods for text management, beyond its transmission, storage and display. Structured data is semantically well-defined data from a chosen target domain, interpreted with respect to category and context. A more specific goal is to allow automated reasoning about the logical form of the input data. announced their acquisition of Bar Corp."Ī broad goal of IE is to allow computation to be done on the previously unstructured data. M e r g e r B e t w e e n ( c o m p a n y 1, c o m p a n y 2, d a t e ) , An example is the extraction from newswire reports of corporate mergers, such as denoted by the formal relation: Recent activities in multimedia document processing like automatic annotation and content extraction out of images/audio/video/documents could be seen as information extractionĭue to the difficulty of the problem, current approaches to IE (as of 2010) focus on narrowly restricted domains. In most of the cases this activity concerns processing human language texts by means of natural language processing (NLP). Information extraction ( IE) is the task of automatically extracting structured information from unstructured and/or semi-structured machine-readable documents and other electronically represented sources. Machine reading of unstructured documents
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