In speech recognition systems, it is generally required that the training environment be identical to the decoding environment. Any mismatch between them may result in performance degradation. This paper tries to improve the performance of a speech recognition system by compensating for the training and decoding mismatches. The baseline system [1][2] is a multiple pass decoding system capable o...

ROVER [1] and its successor voting procedures have been shown to be quite effective in reducing the recognition word error rate (WER). The success of these methods has been attributed to their minimum Bayes-risk (MBR) nature: they produce the hypothesis with the least expected word error. In this paper we develop a general procedure within the MBR framework, called segmental MBR recognition, th...

This paper reports on our recent research in speech recognition by surface electromyography (EMG), which is the technology of recording the electric activation potentials of the human articulatory muscles by surface electrodes in order to recognize speech. This method can be used to create Silent Speech Interfaces, since the EMG signal is available even when no audible signal is transmitted or ...

precipitation is considered as one of the most important factures in water cycle. prediction of monthly precipitation is important for many purposes such as estimating torrent, drought, run-off, sediment, irrigation programming and also management of drainage basins.in this study we studied and evaluated gene expression programming to predict the precipitation of the kakareza river (in lorestan...

Within complex, sociotechnical systems, human error has consistently been implicated as the major causal factor in a high proportion of accidents and incidents. For example, recent research within the road transport domain indicates that driver error contributes to as much as 75% of all roadway crashes. This report represents the second phase of a research program of which the aim is to promote...

the output error of the globoidal cam mechanism can be considered as a relevant indicator ofmechanism performance, because it determines kinematic and dynamical behavior of mechanicaltransmission. based on the differential geometry and the rigid body transformations, themathematical model of surface geometry of the globoidal cam is established. then we present theanalytical expression of the ou...

In normal flight operations, crews are faced with a variety of external threats and commit a range of errors that have the potential to impact negatively on the safety of airline operations. The effective management of these threats and errors therefore forms an essential element of enhancing performance and minimizing risk. Recent research has reinforced the need to examine a range of nontechn...