Noisy text categorization.
IEEE Trans Pattern Anal Mach Intell
; 27(12): 1882-95, 2005 Dec.
Article
in En
| MEDLINE
| ID: mdl-16355657
ABSTRACT
This work presents categorization experiments performed over noisy texts. By noisy, we mean any text obtained through an extraction process (affected by errors) from media other than digital texts (e.g., transcriptions of speech recordings extracted with a recognition system). The performance of a categorization system over the clean and noisy (Word Error Rate between approximately 10 and approximately 50 percent) versions of the same documents is compared. The noisy texts are obtained through handwriting recognition and simulation of optical character recognition. The results show that the performance loss is acceptable for Recall values up to 60-70 percent depending on the noise sources. New measures of the extraction process performance, allowing a better explanation of the categorization results, are proposed.
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Database:
MEDLINE
Main subject:
Algorithms
/
Electronic Data Processing
/
Pattern Recognition, Automated
/
Artificial Intelligence
/
Image Interpretation, Computer-Assisted
/
Information Storage and Retrieval
/
Handwriting
Type of study:
Risk_factors_studies
Language:
En
Year:
2005
Type:
Article