File size: 4,979 Bytes
f8f5cdf
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
# 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