Citation:
A Handwriting-Based Equation Editor. Written by: Steve Smithies, Kevin Novins, James Arvo.
Summary:
Equation editing systems relying on either textbased equation description languages or on interactive
construction by means of structure templates and menus are tedious to use, even for experts, because the user is forced to “parse” the expressions mentally before they are entered. The system described below is a prototype equation editor that is based on handwriting recognition and automatic equation
parsing.
The recognition system performs Character Recognition, Stroke grouping and Equation parsing. Parsing uses LATEX like notation.The main drawbacks of a graph grammar approach are
the number and complexity of subgraph searches. The system also provides a basic User interface for ease of use. It also provides correcting of stroke grouping errors and correcting of character recognition errors. The next step is providing correction of Equation parsing errors. This system provides a natural and familiar interaction method or recognizing equations.
Discussion:
The time taken for parsing simple formulæ is less than two seconds, though more complicated formulæ may take twenty seconds or more. This time taken for parsing is very less and shows the efficiency this system has.
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