2009 10th International Conference on Document Analysis and Recognition
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When selecting features with the sequential forward float- ing selection (SFFS), the "nesting effect" is avoided, which is a common phenomenon if the computationally less expen- sive sequential forward selection (SFS) is used instead. In this paper, we answer the key question, if the more complex and sophisticated SFFS should be used in on-line HMM- based recognition of handwritten whiteboard notes. In ad- dition, an efficient method of displaying the selected feature set, the "feature map", is introduced. In an experimental section, both selection approaches are evaluated, the derived feature sets are compared, and a discussion on the selected features is given.