Keyword spotting refers to the process of retrieving all instances of a given key word in a document. In the present paper, a novel keyword spotting system for handwritten documents is described. It is derived from a neural network based system for unconstrained handwriting recognition. As such it performs template-free spotting, i.e. it is not necessary for a keyword to appear in the training set. The keyword spotting is done using a modification of the CTC Token Passing algorithm. We demonstrate that such a system has the potential for high performance. For example, a precision of 95% at 50% recall is reached for the 4,000 most frequent words on the IAM offline handwriting database. © 2010 Springer-Verlag.
CITATION STYLE
Frinken, V., Fischer, A., & Bunke, H. (2010). A novel word spotting algorithm using bidirectional long short-term memory neural networks. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5998 LNAI, pp. 185–196). https://doi.org/10.1007/978-3-642-12159-3_17
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