Machine Learning in Document Analysis and Recognition

[LeeAndro]

English | PDF | 2008 | 436 Pages | ISBN : 3540762795 | 9.02 MB​

The objective of Document Analysis and Recognition (DAR) is to recognize the text and graphicalcomponents of a document and to extract information. With rst papers dating back to the 1960's, DAR is a mature but still gr- ing researcheld with consolidated and known techniques. Optical Character Recognition (OCR) ees are some of the most widely recognized pr- ucts of the research in this eld, while broader DAR techniques are nowadays studied and applied to other industrial and oce automation systems.
In the machine learning community, one of the most widely known - search problems addressed in DAR is recognition of unconstrained handwr- ten characters which has been frequently used in the past as a benchmark for evaluating machine learning algorithms, especially supervised classiers. However, developing a DAR system is a complex eeering task that involves the integration of multiple techniques into an organic framework. A reader may feel that the use of machine learning algorithms is not approp- ate for other DAR tasks than character recognition. On the contrary, such algorithms have been massively used for nearly all the tasks in DAR. With large emphasis being devoted to character recognition and word recognition, other tasks such as pre-processing, layout analysis, character sntation, and signature verication have also beneted much from machine learning algorithms.



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