Arthur Ramer

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Traditional control theory helps only in the situations when we know the behavior of the system that we are going to control. However, in many situations, e.g., in space exploration, we do not have this knowledge, but we still have to make control decisions. In such situations, a reasonable idea is to find an operator who is good in this kind of control,(More)
1 Preamble Our article analyzes complexity of extracting information from fuzzy data. Such process can be properly viewed as contributing information, hence also alleviating uncertainty about the result of the process itself. Notion of information has been utilized frequently, both formally and informally. In the formal vein, Shannon entropy of(More)
We model the user’s quality of experience (QoE) in a wireless voice over IP (VoIP) service as a function of the amount of effort the user has to put to continue her conversation. We assume that users would quit or terminate an ongoing call if they have to put more efforts than they could tolerate. Not knowing the tolerance threshold of each individual user,(More)
We consider the problem of defining conditional objects (a|b), which would allow one to regard the conditional probability Pr(a|b) as a probability of a well-defined event rather than as a shorthand for Pr(ab)/Pr(b). The next issue is to define boolean combinations of conditional objects, and possibly also the operator of further conditioning. These(More)
In this paper we prove that all the existing conditional event algebras (abbreviated cea in this paper) embed into the three-valued extension (TLjTL) of temporal logic of discrete past time, which the authors of this paper have proposed in [TRH01] as a general model of conditional events. First of all, we discuss the descriptive incompleteness of the cea’s.(More)