physbo.gp.core.prior module

class physbo.gp.core.prior.prior(mean, cov)

ベースクラス: object

prior of gaussian process

cat_params(mean_params, cov_params)

パラメータ

• mean_params (numpy.ndarray) -- Mean values of parameters

• cov_params (numpy.ndarray) -- Covariance matrix of parameters

戻り値

戻り値の型

numpy.ndarray

decomp_params(params)

decomposing the parameters to those of mean values and covariance matrix for priors

パラメータ

params (numpy.ndarray) -- parameters

戻り値

• mean_params (numpy.ndarray)

• cov_params (numpy.ndarray)

get_cov(X, Z=None, params=None, diag=False)

Calculating the variance-covariance matrix of priors

パラメータ

• X (numpy.ndarray) -- N x d dimensional matrix. Each row of X denotes the d-dimensional feature vector of search candidate.

• Z (numpy.ndarray) -- N x d dimensional matrix. Each row of Z denotes the d-dimensional feature vector of tests.

• params (numpy.ndarray) -- Parameters.

• diag (bool) -- If X is the diagonalization matrix, true.

戻り値

戻り値の型

numpy.ndarray

get_grad_cov(X, params=None)

Calculating the covariance matrix priors

パラメータ

• X (numpy.ndarray) -- N x d dimensional matrix. Each row of X denotes the d-dimensional feature vector of search candidate.

• params (numpy.ndarray) -- Parameters.

戻り値

戻り値の型

numpy.ndarray

get_grad_mean(num_data, params=None)

Calculating the gradiant of mean values of priors

パラメータ

• num_data (int) -- Total number of data

• params (numpy.ndarray) -- Parameters

戻り値

戻り値の型

numpy.ndarray

get_mean(num_data, params=None)

Calculating the mean value of priors

パラメータ

• num_data (int) -- Total number of data

• params (numpy.ndarray) -- Parameters

戻り値

戻り値の型

float

sampling(X, N=1)

Sampling from GP prior

パラメータ

• X (numpy.ndarray) -- N x d dimensional matrix. Each row of X denotes the d-dimensional feature vector of search candidate.

• N (int) --

戻り値

戻り値の型

float

set_cov_params(params)

Setting parameters for covariance matrix of priors

パラメータ

params (numpy.ndarray) -- Parameters

set_mean_params(params)

Setting parameters for mean values of priors

パラメータ

params (numpy.ndarray) -- Parameters

set_params(params)

Setting parameters

パラメータ

params (numpy.ndarray) -- Parameters.