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exchangeability    
n. 可交换性

可交换性

exchangeability
n 1: the quality of being capable of exchange or interchange
[synonym: {exchangeability}, {interchangeability},
{interchangeableness}, {fungibility}] [ant:
{unexchangeability}]


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  • Exchangeable random variables - Wikipedia
    The property of exchangeability is closely related to the use of independent and identically distributed (i i d ) random variables in statistical models [8] A sequence of random variables that are i i d , conditional on some underlying distributional form, is exchangeable
  • Exchangeability: Exchangeability: The Hidden Gem in Bayesian Statistics . . .
    Exchangeability is a concept that lies at the heart of Bayesian statistics, serving as a bridge between subjective beliefs and objective data analysis It's a property of a sequence of random variables, where the joint probability distribution remains unchanged under permutations of the sequence
  • Exchangeability - Duke University
    The idea of exchangeability will allow for an objectivist interpretation for changing the parameter p as more and more coins are flipped The key assumption we will make is that we don’t care when the heads or tails occur but just how many of them we have observed
  • What is: Exchangeability - LEARN STATISTICS EASILY
    Exchangeability is a fundamental concept in statistics and probability theory that refers to the property of a sequence of random variables being interchangeable without affecting the joint probability distribution
  • 2 Exchangeability and experiments | Causal Inference Course
    We talk about why experiments are good: they are a setting in which a key identification assumption (exchangeability) holds by design We further discuss why exchangeability is important: it allows us to link causal quantities to observable data
  • Understanding exchangeability in statistical modeling: a Thanksgiving . . .
    Kempthorne was thinking of exchangeability as a substantive concern, to be addressed by subject-matter knowledge And subject-matter knowledge is indeed relevant, most notably in setting up the model for the varying parameters
  • Exchangeability and deFinetti’s Theor - University of Colorado Boulder
    Exchangeability and deFinetti's Theorem De nition: The random variables X1; X2; : : : ; Xn are said to be exchangeable if the distribution of the random vector (X1; X2; : : : ; Xn) is the same as that of (X 1; X 2; : : : ; Xn) for any permuta-tion ( 1; 2; : : : ; n) of the indices f1; 2; : : : ; ng We write
  • Exchangeability and regression models - University of Chicago
    Exchangeability modulo x is the condition that if x takes the same value on two samples, the distributions are also the same Any distinction between units, such as name or identification number that is not included as a component of x, has no effect on the response distribution
  • Exchangeability (cont) and conditionally randomized experiments
    Flip a coin Two groups of people: heads and tails Question: Are both studies valid? Yes The (H T) groups are exchangeable





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