grave fault 中文意思是什麼
grave fault
解釋
嚴重錯誤-
Granger received the nobel prize, because their cointegration theory had solved two difficult problems, the time - varying volatility and non - stationary in the time series analysis field. in this paper, will introduce the normal knowledge of cointegration theory, and emphatically depict the possibility of applying cointegration algorithm to condition monitoring and fault diagnosis for engineering systems, which are non - stationary processes. it is well known that non - stationary system behavior causes grave difficulties on system modeling and condition monitoring due to the time - dependent statistics
2003年，諾貝爾經濟學獎頒給了在時間序列計量經濟學研究領域做出突破性貢獻的兩位美國經濟學家，羅伯特?恩格爾（ robertf . engle ）和克萊夫?格蘭傑（ clivewj . granger ） ，以表彰他們提出的協整理論解決了時間序列分析中的兩個難題，即異方差（ time - varyingvolatility ）與非平穩性（ non - stationary ） 。
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