forward prediction meaning in English
正向预测
Examples
- Research and analysis of forward prediction technology using seismic reflection wave in tunnel and laneway in china
中国隧道及井巷地震波法超前探测技术研究分析 - Based on sample of the index from april 3 , 1991 to may 31 , 2001 , arima models have been built with tsp computer software guided by route of " from general to specific " . the models built have better fit goodness and one point forward prediction is highly precise . but ultra - sample prediction by c + + program shows prediction precision reduces fast as the length of prediction grows , long term prediction of the index is impossible
建模表明利用tsp统计软件结合从“一般到特殊”的建模方法，所建的模型对已有数据的拟合较好，向前一步单点预测准确性较高，但利用c语言程序进行进一步分析表明时间序列分析模型对深圳成分指数的长期预测效果明显降低。 - Taking in - situ toughened silicon nitride as a design object , principle component analysis ( pca ) is applied to study the microstructure and mechanical properties , to find out the main microstructure controlling factors , and to simplify the characterization variables and criterions ; fuzzy neural networks ( fnns ) is also applied to develop a design expert system for this material , which can realize the forward prediction from processing , microstructure to mechanical properties , and backward design from mechanical properties or microstructure to processing ; monte - carlo method is applied to simulate the grain growth of this material , and then crack propagation is simulated , which is another way based on physics and chemistry to developing prediction models from processing until to mechanical properties
本文以自增韧氮化硅陶瓷为设计对象，运用主成分分析法( principlecomponentanalysis ： pca )对自增韧si _ 3n _ 4陶瓷的显微结构和力学性能进行数据空间降维，获得自增韧si _ 3n _ 4陶瓷显微结构控制的主要因素，进而简化了表征参量变量和准则；运用模糊神经网络( fuzzyneuralnetworks ： fnn )建立了自增韧si _ 3n _ 4陶瓷设计专家系统，能实现工艺?微结构?性能的正向预测及反向设计；运用monte - carlo方法( mc )进行自增韧si _ 3n _ 4陶瓷的晶体生长模拟，然后进行裂纹扩展模拟，探索建立工艺?微结构?力学性能预测模型的思路。