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# Copyright 2020 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import copy
import re
class TrialShortNamer:
PREFIX = "hp"
DEFAULTS = {}
NAMING_INFO = None
@classmethod
def set_defaults(cls, prefix, defaults):
cls.PREFIX = prefix
cls.DEFAULTS = defaults
cls.build_naming_info()
@staticmethod
def shortname_for_word(info, word):
if len(word) == 0:
return ""
short_word = None
if any(char.isdigit() for char in word):
raise Exception(f"Parameters should not contain numbers: '{word}' contains a number")
if word in info["short_word"]:
return info["short_word"][word]
for prefix_len in range(1, len(word) + 1):
prefix = word[:prefix_len]
if prefix in info["reverse_short_word"]:
continue
else:
short_word = prefix
break
if short_word is None:
# Paranoid fallback
def int_to_alphabetic(integer):
s = ""
while integer != 0:
s = chr(ord("A") + integer % 10) + s
integer //= 10
return s
i = 0
while True:
sword = word + "#" + int_to_alphabetic(i)
if sword in info["reverse_short_word"]:
continue
else:
short_word = sword
break
info["short_word"][word] = short_word
info["reverse_short_word"][short_word] = word
return short_word
@staticmethod
def shortname_for_key(info, param_name):
words = param_name.split("_")
shortname_parts = [TrialShortNamer.shortname_for_word(info, word) for word in words]
# We try to create a separatorless short name, but if there is a collision we have to fallback
# to a separated short name
separators = ["", "_"]
for separator in separators:
shortname = separator.join(shortname_parts)
if shortname not in info["reverse_short_param"]:
info["short_param"][param_name] = shortname
info["reverse_short_param"][shortname] = param_name
return shortname
return param_name
@staticmethod
def add_new_param_name(info, param_name):
short_name = TrialShortNamer.shortname_for_key(info, param_name)
info["short_param"][param_name] = short_name
info["reverse_short_param"][short_name] = param_name
@classmethod
def build_naming_info(cls):
if cls.NAMING_INFO is not None:
return
info = {
"short_word": {},
"reverse_short_word": {},
"short_param": {},
"reverse_short_param": {},
}
field_keys = list(cls.DEFAULTS.keys())
for k in field_keys:
cls.add_new_param_name(info, k)
cls.NAMING_INFO = info
@classmethod
def shortname(cls, params):
cls.build_naming_info()
assert cls.PREFIX is not None
name = [copy.copy(cls.PREFIX)]
for k, v in params.items():
if k not in cls.DEFAULTS:
raise Exception(f"You should provide a default value for the param name {k} with value {v}")
if v == cls.DEFAULTS[k]:
# The default value is not added to the name
continue
key = cls.NAMING_INFO["short_param"][k]
if isinstance(v, bool):
v = 1 if v else 0
sep = "" if isinstance(v, (int, float)) else "-"
e = f"{key}{sep}{v}"
name.append(e)
return "_".join(name)
@classmethod
def parse_repr(cls, repr):
repr = repr[len(cls.PREFIX) + 1 :]
if repr == "":
values = []
else:
values = repr.split("_")
parameters = {}
for value in values:
if "-" in value:
p_k, p_v = value.split("-")
else:
p_k = re.sub("[0-9.]", "", value)
p_v = float(re.sub("[^0-9.]", "", value))
key = cls.NAMING_INFO["reverse_short_param"][p_k]
parameters[key] = p_v
for k in cls.DEFAULTS:
if k not in parameters:
parameters[k] = cls.DEFAULTS[k]
return parameters
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