9,082 research outputs found
Oral Archives and the Study of Anti-Japanese War
With the analysis of the value of oral archives, this paper aims at pointing out the role of Oral Archives in the study of the history of Anti-Japanese War. Besides, it also puts forward the corresponding countermeasures to the current application situation and existing problems of Oral Archives in the study of the Anti Japanese War, such as enhancing the mutual authenticity between oral archives and references, strengthening the intensity, breadth and depth of the implementation of oral archives, so as to better serve the history of Anti Japanese war
Software quality and reliability prediction using Dempster -Shafer theory
As software systems are increasingly deployed in mission critical applications, accurate quality and reliability predictions are becoming a necessity. Most accurate prediction models require extensive testing effort, implying increased cost and slowing down the development life cycle. We developed two novel statistical models based on Dempster-Shafer theory, which provide accurate predictions from relatively small data sets of direct and indirect software reliability and quality predictors. The models are flexible enough to incorporate information generated throughout the development life-cycle to improve the prediction accuracy.;Our first contribution is an original algorithm for building Dempster-Shafer Belief Networks using prediction logic. This model has been applied to software quality prediction. We demonstrated that the prediction accuracy of Dempster-Shafer Belief Networks is higher than that achieved by logistic regression, discriminant analysis, random forests, as well as the algorithms in two machine learning software packages, See5 and WEKA. The difference in the performance of the Dempster-Shafer Belief Networks over the other methods is statistically significant.;Our second contribution is also based on a practical extension of Dempster-Shafer theory. The major limitation of the Dempsters rule and other known rules of evidence combination is the inability to handle information coming from correlated sources. Motivated by inherently high correlations between early life-cycle predictors of software reliability, we extended Murphy\u27s rule of combination to account for these correlations. When used as a part of the methodology that fuses various software reliability prediction systems, this rule provided more accurate predictions than previously reported methods. In addition, we proposed an algorithm, which defines the upper and lower bounds of the belief function of the combination results. To demonstrate its generality, we successfully applied it in the design of the Online Safety Monitor, which fuses multiple correlated time varying estimations of convergence of neural network learning in an intelligent flight control system
Several Issues on the Study of Anning River National Corridor
Anning River Basin, located in the southwest of Sichuan, is a very important national corridor, and its most prominent feature is the multi-ethnic interaction as well as the resulting cultural integration and cultural diversity. On the basis of the existing relevant research, the study on this area is carried out from the ethnic interaction and cultural development as well as their relevance, which has important academic value and practical significance. There are three aspects of issues worth noting: first, the formation and evolution of ethnic pattern; second, cultural partition; third, ethnic interaction and cultural change
Arrangement and Research on Chongqing Bombing Archives
Chongqing, as the provisional capital and rear center of China during the anti-Japanese war, is the main goal of the bombing of Japanese military aircraft. From February 1938 to August 1943, the Japanese aircraft bombed Chongqing wantonly and indiscriminately for more than five years, causing great loss of life and property. There are a large number of records on Chongqing bombing around the world. In recent years, the academic community has gradually sorted and utilized these related archives, achieving some results. Relatively speaking, the utilization of relevant achieves collected in Japan, the Untied States, Britain and other countries is still quite limited
The subordinated processes controlled by a family of subordinators and corresponding Fokker-Planck type equations
In this work, we consider subordinated processes controlled by a family of
subordinators which consist of a power function of time variable and a negative
power function of stable random variable. The effect of parameters in
the subordinators on the subordinated process is discussed. By suitable
variable substitutions and Laplace transform technique, the corresponding
fractional Fokker-Planck-type equations are derived. We also compute their mean
square displacements in a free force field. By choosing suitable ranges of
parameters, the resulting subordinated processes may be subdiffusive, normal
diffusive or superdiffusive.Comment: 11 pages, accepted by J. Stat. Mech.: Theor. Ex
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