secretflow.ml.boost.sgb_v.factory.components.split_finder#

Classes:

SplitFinder()

class secretflow.ml.boost.sgb_v.factory.components.split_finder.SplitFinder[源代码]#

基类：Component

Methods:

`__init__`()
`show_params`()
`set_params`(params)
`get_params`(params)
`set_devices`(devices)
`find_best_splits`(G, H, tree_num, level)

__init__() → None[源代码]#

show_params()[源代码]#

set_params(params: dict)[源代码]#

get_params(params: dict)[源代码]#

set_devices(devices: Devices)[源代码]#

find_best_splits(G: ndarray, H: ndarray, tree_num: int, level: int) → Tuple[ndarray, ndarray][源代码]#

secretflow.ml.boost.sgb_v.factory.components.split_finder.split_finder#

Classes:

`SplitFinderParams`(gamma, reg_lambda, audit_paths)	'gamma': float. Greater than 0 means pre-pruning enabled.
`SplitFinder`()

Functions:

write_log(x, path)

class secretflow.ml.boost.sgb_v.factory.components.split_finder.split_finder.SplitFinderParams(gamma: float = 0, reg_lambda: float = 0.1, audit_paths: dict = <factory>)[源代码]#

基类：object

‘gamma’: float. Greater than 0 means pre-pruning enabled.: Gain less than it will not induce split node.

default: 0.1 range: [0, 10000]
‘reg_lambda’: float. L2 regularization term on weights.: default: 0.1 range: [0, 10000]

‘audit_paths’: dict. {device : path to save log for audit}

Attributes:

`gamma`
`reg_lambda`
`audit_paths`

Methods:

__init__([gamma, reg_lambda, audit_paths])

gamma: float = 0#

reg_lambda: float = 0.1#

audit_paths: dict#

__init__(gamma: float = 0, reg_lambda: float = 0.1, audit_paths: dict = <factory>) → None#

class secretflow.ml.boost.sgb_v.factory.components.split_finder.split_finder.SplitFinder[源代码]#

基类：Component

Methods:

`__init__`()
`show_params`()
`set_params`(params)
`get_params`(params)
`set_devices`(devices)
`find_best_splits`(G, H, tree_num, level)

__init__() → None[源代码]#

show_params()[源代码]#

set_params(params: dict)[源代码]#

get_params(params: dict)[源代码]#

set_devices(devices: Devices)[源代码]#

find_best_splits(G: ndarray, H: ndarray, tree_num: int, level: int) → Tuple[ndarray, ndarray][源代码]#

secretflow.ml.boost.sgb_v.factory.components.split_finder.split_finder.write_log(x, path)[源代码]#