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This paper presents automatic methods for the segmenta-tion and classication of dialog acts (DA). In Verbmobil it is often sucient to recognize the sequence of DAs occurring during a dialog between the two partners. Since a turn can consist of one or more successive D As we conduct the classication of DAs in a two step procedure: First each turn has to be(More)
A method for the oo-line recognition of cursive handwriting based on Hidden Markov Models (HMMs) is described. The features used in the HMMs are based on the arcs of skeleton graphs of the words to be recognized. An average correct recognition rate of over 98% on the word level has been achieved in experiments with cooperative writers using two dictionaries(More)
In this paper we present two new techniques for language modeling in speech recognition. The rst technique is based on ergodic discrete density Hidden Markov Models (HMM) which can be applied to bigrams based on word categories. This statistical approach of the so-called Markov bigrams enables an eecient unsupervised learning procedure for the bigram(More)
Heart rate variability (HRV) is a marker of autonomous activity in the heart. An important application of HRV measures is the stratification of mortality risk after myocardial infarction. Our hypothesis is that the information entropy of HRV, a non-linear approach, is a suitable measure for this assessment. As a first step, to evaluate the effect of(More)
MOTIVATION The identification of transcription factor binding sites in promoter sequences is an important problem, since it reveals information about the transcriptional regulation of genes. For analysing transcriptional regulation, computational approaches for predicting putative binding sites are applied. Commonly used stochastic models for binding sites(More)
Prosodic boundary detection is important to disam-biguate parsing, especially in spontaneous speech, where elliptic sentences occur frequently. Word graphs are an eecient interface between word recognition and parser. Prosodic classiication of word chains has been published earlier. The adjustments necessary for applying these classiication techniques to(More)