Tasos Anastasakos
Motorola
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Publication
Featured researches published by Tasos Anastasakos.
international conference on acoustics, speech, and signal processing | 2000
Giovanni Seni; Tasos Anastasakos
In this paper, we describe a novel and efficient search strategy as it is applied to on-line handwriting recognition. The recognition system, which is based on Viterbi decoding, computes posterior probabilities of characters based on sequences of observations, referred to as segments. Posterior distributions of segments are appealing because they allow correlation modeling of the entire segment. In addition, they provide a reliable confidence-rejection mechanism due to their discriminative nature. These posterior scores, which we term non-cumulative, cannot be used for hypothesis pruning as it is done in a standard time synchronous beam search. We propose an organization of the search algorithm that addresses the difficulties posed by the use of non-cumulative character scoring in an efficient way. We report on a writer-independent recognition system that achieves a tenfold reduction in the required number of theories while maintaining the same level of accuracy. Finally, we provide a comparison between the segmental posterior probabilities and the frame-based, class-conditional distributions of the traditional HMM approach that highlights the differences in the search methodology.
Journal of the Acoustical Society of America | 2007
Tasos Anastasakos; Senaka Balasuriya; Michael Van Wie
Archive | 2004
Anurag K. Gupta; Tasos Anastasakos
Archive | 2004
Anurag K. Gupta; Tasos Anastasakos
Archive | 2005
Daniel A. Baudino; Tasos Anastasakos; Von A. Mock
conference of the international speech communication association | 2004
Anurag K. Gupta; Tasos Anastasakos
conference of the international speech communication association | 2004
Anurag K. Gupta; Tasos Anastasakos
Archive | 2004
Anurag K. Gupta; Tasos Anastasakos
Archive | 2004
Anurag K. Gupta; Tasos Anastasakos; Hang Shun Raymond Lee
indian international conference on artificial intelligence | 2003
Anurag K. Gupta; Tasos Anastasakos; Claude Sammut