id	keyword
ap-4889	layer
ap-4889	network
ap-4889	recognition
ap-4889	arabic
ap-4889	training
ap-4889	rbm
ap-4889	classification
ap-4889	character
ap-4889	online
ap-4889	handwriting
ap-4889	function
ap-4889	words
ap-4889	dbn
ap-4889	learning
ap-4889	input
ap-4889	figure
ap-4889	vector