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In this paper, we discuss on the reachability analysis of free choice nets based on structure theory associated to handles. First half of the paper is devoted to clarify the relationship between handles and deadlocks/traps from the aspect emphasized on the reachability analysis. In the second half of the paper, the reachability criteria for free choice nets is discussed based on the structure theory...
This paper studies the L1-optimal control problem for SISO systems with rational controllers. It is shown that the infimal achievable norm with rational controllers is as small as that with irrational controllers. Also a way to construct a rational suboptimal controller is studied.
We study supervisory control of timed event graphs in the max-algcbra framework. Desirable behavior is assumed to be specified as a set of firing time sequences of transitions. We address a control problem which requires that behavior of the supervised system equal the specification set. A necessary and sufficient condition for the existence of a control input set to solve our problem is presented...
This paper presents an approach to the problem of estimating the number of exponential functions and the pertinent parameters in the output of a radioactive tracer kinetic process. In particular, application of a criterion called an information theoretical criterion (AIC) for the estimation of the number of exponential functions is proposed; AIC was introduced by Akaike for the estimation of the order...
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