نتایج جستجو برای: Multistate
تعداد نتایج: 1828 فیلتر نتایج به سال:
This article concerns the general functional features of an adjective in modern English, and in particular multistate lexical item “just”, which carries different meanings in different variants of combinatorics. The authors analyze the combinations used with the adjectival lexeme item “just” and reveal the categories that determine the degree of semantic content of each given statement. The nee...
The optimal survivor search problem is to maximize the probability of finding a moving target alive. The target may be a person missing at sea or lost in a wilderness area. In a multistate target problem, the target is moving and changing states stochastically. Each state may imply different motion and detectability assumptions. We find necessary and sufficient conditions for optimal detection ...
In this paper, we study a monotone process maintenance model for a multistate system with k working states and failure states. By making different assumptions, we can apply the model to a multistate deteriorating system as well as to a multistate improving system. We show that the monotone process model for a multistate system is equivalent to a geometric process model for a two-state system. T...
In this note some new characterization results for multistate systems are obtained. In particular, a new characterization of the Natvig class of multistate systems is presented, which provides us an easy-to-use method of classifying multistate systems. Examples are given to illustrate our result.
In this paper, a new algorithm based on Binary Decision Diagram (BDD) for the analysis of a system with multistate components is proposed. Each state of a multistate component is represented by a Boolean variable, and a multistate system is represented by a series of multistate fault trees. A Boolean algebra with restrictions on variables is used to address the dependence among these Boolean va...
AFLPs (and to a lesser extent ISSRs and RAPDs) are increasingly being used for phylogenetic inference among closely related species. Presence/absence characters for each AFLP allele treat all absences as homologous to one another. With three or more alleles, terminals are grouped by their shared absence of alleles in character-based phylogenetic-inference methods in a manner that is not redunda...
Multistate capturerecapture models are a natural generalization of the usual one-site recapture models. Similarly, individuals are sampled on discrete occasions, at which they may be captured or not. However, contrary to the one-site case, the individuals can move within a ® nite set of states between occasions. The growing interest in spatial aspects of population dynamics presently contribute...
Multistate processes provide a convenient framework when interest lies in characterising the transition intensities between a set of defined states. If, however, there is an unobserved event of interest (not known if and when the event occurs), which when it occurs stops future transitions in the multistate process from occurring, then drawing inference from the joint multistate and event proce...
Introduction: Millions of U.S. residents become ill from foodborne pathogens each year. Most foodborne outbreaks occuramong small groups of persons in a localized area. However, because many foods are distributed widely and rapidly, andbecause detection methods have improved, outbreaks that occur in multiple states and that even span the entire countryare being recognized with incre...
Historically, ordinal measures of functional outcome have been dichotomized for the primary analysis in acute stroke therapy trials. A number of alternative methods to analyze the ordinal scales have been proposed, with an emphasis on maintaining the ordinal structure as much as possible. In addition, despite the availability of longitudinal outcome data in many trials, the primary analysis con...
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