We discuss the choice of polynomial basis for approximation of uncertainty propagation through complex simulation models with capability to output derivative information. Our work is part of a larger research effort in uncertainty quantification using sampling methods augmented with derivative information. The approach has new challenges compared with standard polynomial regression. In particul...

Describes i) necessity of fuzzy DataBase ii) techniques used in the storage and retrieval of fuzzy data in a DataBase or information retrieval system iii) DataBase framework for fuzzy DataBase and iv) the advantages of using object-oriented DataBase framework in fuzzy DataBase. A prototype of fuzzy object-oriented DataBase system, (FOODS), has been developed to demonstrate the feasibility of fu...

Continued global economic instability and uncer-tainty is causing difficulties in predicting sales. As a result, many sectors decision-makers are facing new, pressing challenges. In supply chain management, the food industry key sector which sales movement demand forecasting for products more difficult to predict. Accurate helps minimize stored expired items across individual stores and, thus, ...

Throughout the performance of a RF immunity test according IEC 61000-4-3 there are several factors that should be taken into account to ensure the quality and to estimate the uncertainty associated to the results. One phenomenon that should be considered to calculate uncertainty is the disturbing effect produced by the EUT over the electric field generated within the calibrated uniform field ar...

When massaging differential-algebraic equations during an index reduction process, one usually keeps track of structural zeros in order to be able to detect when non-differential equations appear. However, in a numerical setting structural zeros may turn out as small numbers, impossible to distinguish from zero when numerical precision is taken into account. Such coefficients are referred to as...

The article discusses the calibration results of reference standards-copies according to State Primary Standard Mass Unit using new CCL 1007 vacuum comparator and buoyancy artifacts. authors provided historical data on calibrations copies International Prototype Kilogram (IPK) starting from 1892, including Russian prototype № 12. instability kilogram No. 12 corresponds international values is a...

This paper describes the f i r s t stages of an experimental i nves t iga t ion into the e f fec ts of using var ious c a l c u l i to propagate uncer ta in ty in an i n te rac t i ve expert system for in format ion r e t r i e v a l . We in te rp re t uncer ta in ty values as p a r t i a l t ru ths rather than p r o b a b i l i t i e s , and draw upon the mathematics of mul t i -va lued log ic...

Design to Criteria scheduling is the process of custom building a schedule to meet dynamic client goal criteria using a task model that describes alternate ways to achieve tasks and sub tasks Formerly Design to Criteria scheduling relied on simple expected value characterizations of method outcomes The recent addition of uncertainty to the task model and its ubiquitous application in Design to ...

This report uses hypothetical decommissioning test cases to illustrate an uncertainty assessment methodology for dose assessments conducted as part of decommissioning analyses for NRC-licensed facilities. This methodology was pre sented previously in NUREG/CR-6656. The hypothetical test case source term and scenarios are based on an actual decommissioning case and the physical setting is based ...