振动与冲击
振動與遲擊
진동여충격
JOURNAL OF VIBRATION AND SHOCK
2014年
16期
80-84,108
,共6页
蔡良才%董豪昊%王海服%刘洲%邵斌%戴圣睿
蔡良纔%董豪昊%王海服%劉洲%邵斌%戴聖睿
채량재%동호호%왕해복%류주%소빈%대골예
NPD 数据%范例推理%支持向量机%预测
NPD 數據%範例推理%支持嚮量機%預測
NPD 수거%범례추리%지지향량궤%예측
NPD data%case-based reasoning%support vector machine (SVM)%prediction
针对当前军用飞机 NPD(Noise-Power-Distance)数据集成过程中面临小样本、小范围及数据失真问题,给出基于范例推理监督的支持向量机预测方法。用支持向量机作为数据回归与预测模型,通过范例推理检索出与目标范例相似的 NPD 数据,用相似范例来指导 NPD 数据的回归与预测。提出基于坡度的相似性检索、检验及修正方法,成功将范例推理的监督作用与预测模型有机结合,降低预测模型对数据样本的敏感性及依赖性。实例表明,该方法经济可行,能提高回归及预测精度。
針對噹前軍用飛機 NPD(Noise-Power-Distance)數據集成過程中麵臨小樣本、小範圍及數據失真問題,給齣基于範例推理鑑督的支持嚮量機預測方法。用支持嚮量機作為數據迴歸與預測模型,通過範例推理檢索齣與目標範例相似的 NPD 數據,用相似範例來指導 NPD 數據的迴歸與預測。提齣基于坡度的相似性檢索、檢驗及脩正方法,成功將範例推理的鑑督作用與預測模型有機結閤,降低預測模型對數據樣本的敏感性及依賴性。實例錶明,該方法經濟可行,能提高迴歸及預測精度。
침대당전군용비궤 NPD(Noise-Power-Distance)수거집성과정중면림소양본、소범위급수거실진문제,급출기우범례추리감독적지지향량궤예측방법。용지지향량궤작위수거회귀여예측모형,통과범례추리검색출여목표범례상사적 NPD 수거,용상사범례래지도 NPD 수거적회귀여예측。제출기우파도적상사성검색、검험급수정방법,성공장범례추리적감독작용여예측모형유궤결합,강저예측모형대수거양본적민감성급의뢰성。실례표명,해방법경제가행,능제고회귀급예측정도。
A support vector machine prediction method based on the surveillance of case-based reasoning was presented,aiming at solving the problems of small sample,small range and data distortion during the military aircraft noise-power-distance (NPD)data integration.In the method,support vector machine was adopted as a regression and prediction model,and similar case was searched via case-based reasoning to supervise the process of regression and prediction.In the process,a method of comparability searching,checkout and revising based on gradient was put forward successfully to combine the case-based reasoning and prediction model,which reduces the sensitivity and dependence of the model on the data sample.An example indicates that the mothed is economical and effective,and will greatly improve the precision of regression and prediction.