id	keyword
iajs-3640	mathematical
iajs-3640	recognition
iajs-3640	network
iajs-3640	symbols
iajs-3640	expressions
iajs-3640	image
iajs-3640	method
iajs-3640	handwritten
iajs-3640	classification
iajs-3640	features
iajs-3640	process
iajs-3640	equation