This paper summaries our recent work on the application of the concepts of capacity per unit cost and reliability function per unit cost to models of fading channels. The cost is taken to be the energy, or a certain fourth moment functional that is sensitive to the bursti-ness of the signals, and is related to the ambiguity function of the input signal. The channel is assumed to be a Wide-Sense...

Distributional ambiguity sets provide quantifiable ways to characterize the uncertainty about true probability distribution of random variables interest. This makes them a key element in data-driven robust optimization by exploiting high-confidence guarantees hedge against uncertainty. article explores construction Wasserstein dynamic scenarios, where data are collected progressively and may on...

A simple wind field model can be used to evaluate the accuracy of pointwise ambiguity removal for NASA Scatterometer (NSCAT) data. Errors in pointwise ambiguity removal result in large model-fit errors when the pointwise wind estimates are assimilated into the model. By thresholding the error, regions containing ambiguity removal error can be identified. For many of these regions, the ambiguity...

We provide some objective foundations for a belief revision process in a situation where (i) the decision-maker's initial probabilistic knowledge is imprecise and characterized by the core of a belief function, (ii) expected new data are themselves consistent with a belief function with known focal sets and (iii) the revision process is based on belief function combination. We study the propert...

Text data is often seen as “take-away” materials with little noise and easy to process information. Main questions are how to get data and transform them into a good document format. But data can be sensitive to noise often called ambiguities. Ambiguities are aware from a long time, mainly because polysemy is obvious in language and context is required to remove uncertainty. One claim in this p...

The scatterometer wind retrieval process produces several possible wind vector choices or ambiguities at each resolution cell. Ambiguity selection routines are generally ad hoc and often result in ambiguity selection errors. It is important to locate areas of ambiguity selection error to assess the quality of scatterometer wind data. A quality assurance algorithm is presented based on comparing...

burnout syndrome includes aspects of emotional exhaustion, depersonalization and decrement of personal accomplishment to which staffs vulnerable to because of their exposure to physical and psychological stressors. the necessity of this research is related to inadequate research on women. the current research aims to explain burnout of working women with an emphasis on the role of organizationa...

background and purpose: providing health services in health centers is a challenging and risky job. so that, realization of quality, performance, efficiency, and fairness in the provision of such services needs a proper condition to ensure that the stress experienced by the personnel is minimized. the present study is a survey of the factors effective on job stress among the nurses working in t...