확률 보행 & Brownian Motion
Ito’s process
dx = a(x,t)dt+b(x,t)dz
Generalized Weiner process
dx = adt+bdz
Brownian motion
ds/s = μdt+σdz
랜덤워크의 시간의 간격이 매우 작다면 이는Brownian Motion에 가깝게 된다.
The Stock Price Assumption
주식의 가격을 S
매우 짧은 시간의 간격을 Dt 라 하자.
주식의 기대수익률
the single feature that distinguishes the following pairs of sounds.
a) [ ] : [ð] – [-voice] : [+voice]
b) [ p ] : [ f ] – [-continuant] : [+continuant]
c) [ u ] : [ ] – [+tense] : [-tense]
d) [ i ] : [ e ] – [+high] : [-high]
e) [b] : [m] – [-sonorant] : [+sonorant],[+nasal]
f) [s] : [ʃ
the unexpected reaction from Wigand. At that time, he keeps after the man he knows can blow the lid off the deceptions of "the seven dwarfs," the heads ofthe seven major tobacco companies who, with their most sincere poker faces, have denied to a congressional committee that smoking poses any health risks.
- Relationship between an informant and a news maker
In thenature of Investi
The change may represent the improved status of
African Americans after the Civil War.
Personification: “the singing ofthe Mississippi,”
“muddy bosom,”
“Dusky rivers”
The final line reaffirms the speaker’s sense of
racial pride, ofcontinuity with ancient, advanced
civilizations, and of connection to life-giving,
enduring forces in nature.
He
ofthe problems can be seen through recent examples such as the case of a 30 year old women's death, who committed suicide after unsuccessfully laying all her property money in Lotto (Ahn, 2004). Another example is the murder case of a man, who killed his girlfriend to rob her Lotto prize money (Kang, 2004).
In such social circumstances, it is only natural that the Lotto has become a soci