One challenge in spoken language recognition is the availability of training data. In this paper, we propose a virtual example construction method to derive artificial training examples from the existing training data. Using the proposed method, both target virtual examples and non-target virtual examples can be derived from the available training samples. An iterative virtual example selection...

In the paper, we introduce a new tree automata framework, called propositional tree automata, capturing the class of tree languages that are closed under an equational theory and Boolean operations. This framework originates in work on developing a su cient completeness checker for speci cations with rewriting modulo an equational theory. Propositional tree automata recognize regular equational...

This paper addresses the kinematics of the Underwater Vehicle-Manipulator Systems (UVMSs). Due the adittional degrees of freedom (dofs) provided by the vehicle, such systems are kinematically redundant, i.e. they possess more dofs than those required to execute a given task, and need to be solved using some redundancy technique. We present an approach based on introducing kinematic constraints....

A regular operator T on a Hilbert C *-module is defined just like a closed operator on a Hilbert space, with the extra condition that the range of (I + T * T) is dense. Semiregular operators are a slightly larger class of operators that may not have this property. It is shown that, like in the case of regular operators, one can, without any loss in generality, restrict oneself to semiregular op...

In [18], a class of nonlinear systems with stochastic actuator failures have been studied. Stochastic functions related to Markovian variables have been introduced to describe the failure scaling factors for each actuators. In this paper we consider the kind of systems involving state-delay, which is much more practical, and adaptive fault-tolerant control problem has been studied. Two main cha...

background tuberculosis (tb) is a globally significant cause of morbidity and mortality in children. few data on tuberculosis in children and adolescents are available in iran. objectives the current study aimed to describe the case characteristics and clinical-epidemiological aspects of children and adolescents with tb. methods a retrospective review was undertaken on 203 patients aged less th...

background and purpose: tuberculosis is a bacterial infection that is commonly caused by mycobacterium tuberculosis. as kurdistan province is close to iraq (risky due to political instability in recent years), the bane city had high interaction with iraq, so the aim of this study was to evaluate the prevalence of tuberculosis in bane (kurdistan) between 2003 and 2010. materials and methods: thi...