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A Grey AMSAA-ELP model based on discovery learning driven reliability growth of complex equipment is proposed in accordance with the practical cases where system's reliability can be improved by discovery learning from the development process of other related equipment. The characteristics of the model are analyzed and a maximum likelihood estimation (MLE) calculation formula is built in the cases...
This paper presents a new method to generate test cased based on the Object Oriented Net (OON) model, notated with Z schemas. We can be benefited from this method in that: (1) Picturing the whole system while generating the test by the algorithm at the same time; (2) Instructing coding by the extended model.
Unit testing is used by programmers to discover bugs with least cost. Static unit testing offers the minimum path coverage while dynamic unit testing detects control and data flow problems. In this paper, we develop a method to translate a program from "character" mode to "graph" mode, so that the tester can picture the existing code without losing the ability to generate tests...
This paper attempts to generate test cases for concurrent programs based on event graph. Through the analysis of state transition of event graph, sub-event-graphs can be generated. Each sub-event-graph corresponds to a test case. We may get benefits from this method in the following. (1) While executing the test case, we can monitor the state transition. (2) Every sub-event-graph is an execution path,...
In this paper, we set up a dynamic output model of fiber optic gyroscope and analyze the testing method of dynamic characteristics of fiber optic gyroscope. In accordance with the feature of the noise in the testing, we research the filter methods through making a comparison of advantage and disadvantage among weighted average filter, IIR digital filter and wavelet analysis in testing of dynamic characteristics...
Considering the high packet losses and low, varying bandwidth of GPRS/EDGE network and limited computation power of handheld devices, we present and implement a novel SVC video-on-demand system for hand-held devices over GPRS/EDGE network. For the purpose of handling varying bitrate, we propose a priority based layer switching (PLS) adaptation scheme for SVC stream, which not only performs online...
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