نتایج جستجو برای: uncertain measure
تعداد نتایج: 404680 فیلتر نتایج به سال:
Sensor data fusion technology is widely employed in fault diagnosis. The information in a sensor data fusion system is characterized by not only fuzziness, but also partial reliability. Uncertain information of sensors, including randomness, fuzziness, etc., has been extensively studied recently. However, the reliability of a sensor is often overlooked or cannot be analyzed adequately. A Z-numb...
There are different types of classification methods for classifying the certain data. All the time the value of the variables is not certain and they may belong to the interval that is called uncertain data. In recent years, by assuming the distribution of the uncertain data is normal, there are several estimation for the mean and variance of this distribution. In this paper, we co...
Uncertainty may be taken to characterize in ferences, their conclusions, their premises or all three. Under some treatments of uncer tainty, the inference itself is never character ized by uncertainty. We explore both the sig nificance of uncertainty in the premises and in the conclusion of an argument that in volves uncertainty. We argue that for un certainty to characterize the conclusi...
Managing and manipulating uncertainty in spatial databases are important problems for various practical applications of geographic information systems. Unlike the traditional fuzzy approaches in relational databases, in this paper a probability-based method to model and index uncertain spatial data is proposed. In this scheme, each object is represented by a probability density function (PDF) a...
The importance of social performance of corporate and business units has increasingly been emphasized by researchers and practitioners in recent years. Since green supply chains Play important roles in decreasing the pollution of business and corporate environments, social performance has a significant role in creating this supply chain; Therefore, in designing green supply chain social perform...
Uncertain logic is a branch of multi-valued logic for dealing with subjective information, which explains formulas as uncertain variables and defines their truth values as uncertain measures. In this paper, uncertain satisfiability is proposed to verify the consistency of a set of truth values for the formulas. Furthermore, for a set of satisfiable formulas with given truth values, the problem ...
Background Diastolic function is almost exclusively assessed using transthoracic echocardiography (TTE), however velocityencoded phase-contrast imaging permits diastolic evaluation with cardiac magnetic resonance (CMR). However, previous studies have utilized heterogeneous planimetric contour locations to measure mitral valve (MV) inflow velocities and the optimal contour is uncertain. We there...
Uncertainty theory is a branch of axiomatic mathematics based on normality, monotonicity, self-duality, countable subadditivity, and product measure axioms. In uncertainty theory this paper proposes a definition of quadratic cross entropy and the principle of minimum quadratic cross entropy. Based on the principle, an application in statistics and a numerical algorithm to estimate uncertain dis...
This paper introduces a qualitative measure of ambiguity and analyses its relationship with other measures of uncertainty. Prob ability measures rela.ti ve likelihoods, while ambiguity measures vagueness surrounding those judgments. Ambiguity is an impor tant represent.ation of uncertain knowledge. It deals with a different type of uncertainty modeled by subjective probability or belief.
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