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G*G
1 楼
we cannot draw samples from p(x) directly, but can
evalute p(x) up to a normalising constant.
what is the last clause's meaning?
evalute p(x) up to a normalising constant.
what is the last clause's meaning?
s*s
2 楼
http://en.wikipedia.org/wiki/Normalizing_constant
"In probability theory, a normalizing constant is a constant by which an
everywhere nonnegative function must be multiplied in order that the area
under its graph is 1, i.e., to make it a probability density function or a
probability mass function."
太深奥了，看数学书吧。
【在 G***G 的大作中提到】
: we cannot draw samples from p(x) directly, but can
: evalute p(x) up to a normalising constant.
: what is the last clause's meaning?
"In probability theory, a normalizing constant is a constant by which an
everywhere nonnegative function must be multiplied in order that the area
under its graph is 1, i.e., to make it a probability density function or a
probability mass function."
太深奥了，看数学书吧。
【在 G***G 的大作中提到】
: we cannot draw samples from p(x) directly, but can
: evalute p(x) up to a normalising constant.
: what is the last clause's meaning?
n*t
3 楼
What is the context of the sentence?
How is p(x) defined?
【在 G***G 的大作中提到】
: we cannot draw samples from p(x) directly, but can
: evalute p(x) up to a normalising constant.
: what is the last clause's meaning?
How is p(x) defined?
【在 G***G 的大作中提到】
: we cannot draw samples from p(x) directly, but can
: evalute p(x) up to a normalising constant.
: what is the last clause's meaning?
O*e
4 楼
It means that you cannot evaluate the exact value of p(x),
but it is possible to evaluate the value of the product c*p(x)
where c is a an unknown constant with the property that the
integral of c*p(x) from x=-infinity to x=+infinity is equal to 1.
【在 G***G 的大作中提到】
: we cannot draw samples from p(x) directly, but can
: evalute p(x) up to a normalising constant.
: what is the last clause's meaning?
but it is possible to evaluate the value of the product c*p(x)
where c is a an unknown constant with the property that the
integral of c*p(x) from x=-infinity to x=+infinity is equal to 1.
【在 G***G 的大作中提到】
: we cannot draw samples from p(x) directly, but can
: evalute p(x) up to a normalising constant.
: what is the last clause's meaning?
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