针对复杂的应用环境下,时间序列建模不易准确,多步预测精度不高的问题,提出基于粒子滤波(particle filter,PF)优化的滚动式时间序列(roll time series,RTS)多步预测算法(PF_RTS)。采用Box-Jenkins方法对时间序列滚动自适应建模,所建模...针对复杂的应用环境下,时间序列建模不易准确,多步预测精度不高的问题,提出基于粒子滤波(particle filter,PF)优化的滚动式时间序列(roll time series,RTS)多步预测算法(PF_RTS)。采用Box-Jenkins方法对时间序列滚动自适应建模,所建模型作为粒子的状态转移方程,利用粒子滤波算法实时动态修正预测数据,逼近状态的最优估计。本文算法具有自学习能力,适合实时应用。仿真结果表明,本文算法需要的先验知识少,提高了预测的精度。展开更多
In this paper, the test suite construction for GUI (Graphical User Interface) software may be executed centered on grey-box approach with the prior test design of window access controls for unit testing, including fro...In this paper, the test suite construction for GUI (Graphical User Interface) software may be executed centered on grey-box approach with the prior test design of window access controls for unit testing, including front-end method of white box and follow-up black box method for integration testing. Moreover, two key opinions are proposed for the test suite construction for GUI software, the first one is that the “Triple-step method” should be used for unit testing with the prior disposing of data boundary value testing of input controls, and another one is that the “Grey-box approach” should be applied in integration testing for GUI software with necessary testing preparation in the precondition. At the same time, the testing of baseline version and the incremental testing should be considered for the test case construction to coordinate with the whole evolution of software product today. Additionally, all our opinion and thought are verified and tested with a typical case of GUI software—PQMS (Product Quality Monitoring Software/System), and results indicate that these methods and specific disposing are practical and effective.展开更多
文摘针对复杂的应用环境下,时间序列建模不易准确,多步预测精度不高的问题,提出基于粒子滤波(particle filter,PF)优化的滚动式时间序列(roll time series,RTS)多步预测算法(PF_RTS)。采用Box-Jenkins方法对时间序列滚动自适应建模,所建模型作为粒子的状态转移方程,利用粒子滤波算法实时动态修正预测数据,逼近状态的最优估计。本文算法具有自学习能力,适合实时应用。仿真结果表明,本文算法需要的先验知识少,提高了预测的精度。
文摘In this paper, the test suite construction for GUI (Graphical User Interface) software may be executed centered on grey-box approach with the prior test design of window access controls for unit testing, including front-end method of white box and follow-up black box method for integration testing. Moreover, two key opinions are proposed for the test suite construction for GUI software, the first one is that the “Triple-step method” should be used for unit testing with the prior disposing of data boundary value testing of input controls, and another one is that the “Grey-box approach” should be applied in integration testing for GUI software with necessary testing preparation in the precondition. At the same time, the testing of baseline version and the incremental testing should be considered for the test case construction to coordinate with the whole evolution of software product today. Additionally, all our opinion and thought are verified and tested with a typical case of GUI software—PQMS (Product Quality Monitoring Software/System), and results indicate that these methods and specific disposing are practical and effective.
