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Inherits From: Config, ParamsDict


default_params Dataclass field
restrictions Dataclass field
pre_nms_top_k Dataclass field
pre_nms_score_threshold Dataclass field
pre_nms_min_size_threshold Dataclass field
nms_iou_threshold Dataclass field
num_proposals Dataclass field
test_pre_nms_top_k Dataclass field
test_pre_nms_score_threshold Dataclass field
test_pre_nms_min_size_threshold Dataclass field
test_nms_iou_threshold Dataclass field
test_num_proposals Dataclass field
use_batched_nms Dataclass field



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Returns a dict representation of params_dict.ParamsDict.

For the nested params_dict.ParamsDict, a nested dict will be returned.


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Builds a config from the given list of arguments.


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Wrapper for from_yaml.


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Accesses through built-in dictionary get method.


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Makes the ParamsDict immutable.


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Override the ParamsDict with a set of given params.

override_params a dict or a ParamsDict specifying the parameters to be overridden.
is_strict a boolean specifying whether override is strict or not. If True, keys in override_params must be present in the ParamsDict. If False, keys in override_params can be different from what is currently defined in the ParamsDict. In this case, the ParamsDict will be extended to include the new keys.


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Overrides/returns a unlocked copy with the current config unchanged.


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Validate the parameters consistency based on the restrictions.

This method validates the internal consistency using the pre-defined list of restrictions. A restriction is defined as a string which specfiies a binary operation. The supported binary operations are {'==', '!=', '<', '<=', '>', '>='}. Note that the meaning of these operators are consistent with the underlying Python immplementation. Users should make sure the define restrictions on their type make sense.

For example, for a ParamsDict like the following

  a1: 1
  a2: 2
    bb1: 10
    bb2: 20
    a1: 1
    a3: 3

one can define two restrictions like this ['a.a1 == b.ccc.a1', 'a.a2 <=']

What it enforces are

  • a.a1 = 1 == b.ccc.a1 = 1
  • a.a2 = 2 <= = 20

KeyError if any of the following happens (1) any of parameters in any of restrictions is not defined in ParamsDict, (2) any inconsistency violating the restriction is found.
ValueError if the restriction defined in the string is not supported.


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Implements the membership test operator.


IMMUTABLE_TYPES (<class 'str'>, <class 'int'>, <class 'float'>, <class 'bool'>, <class 'NoneType'>)
RESERVED_ATTR ['_locked', '_restrictions']
SEQUENCE_TYPES (<class 'list'>, <class 'tuple'>)
default_params None
nms_iou_threshold 0.7
num_proposals 1000
pre_nms_min_size_threshold 0.0
pre_nms_score_threshold 0.0
pre_nms_top_k 2000
restrictions None
test_nms_iou_threshold 0.7
test_num_proposals 1000
test_pre_nms_min_size_threshold 0.0
test_pre_nms_score_threshold 0.0
test_pre_nms_top_k 1000
use_batched_nms False