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            <title xml:lang="en">On-Line Sketch Recognition Using Direction Feature</title>
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                <editor>Paula Kotzé</editor>
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                <editor>Gitte Lindgaard</editor>
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                <term xml:lang="en">multi-stroke shapes</term>
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                <term xml:lang="en">Sketched symbol recognition</term>
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              <p>Sketch recognition is widely used in pen-based interaction, especially as the increasing popularity of devices with touch screens. It can enhance human-computer interaction by allowing a natural/free form of interaction. The main challenging problem is the variability in hand drawings. This paper presents an on-line sketch recognition method based on the direction feature. We also present two feature representations to train a classifier. We support our case by experimental results obtained from the NicIcon database. A recognition rate of 97.95% is achieved, and average runtime is 97.6ms using a Support Vector Machine classifier.</p>
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