File size: 6,772 Bytes
6300a14
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
02a6810
e5c6370
6300a14
 
 
 
 
f96c321
6300a14
 
 
 
 
 
 
 
 
 
 
957151e
6300a14
 
 
 
 
 
 
 
 
 
5e8f719
6300a14
 
f96c321
6300a14
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
f96c321
 
 
6300a14
 
 
 
 
 
 
c9a9415
6300a14
 
 
 
 
c9a9415
6300a14
 
 
 
 
 
 
 
 
 
c9a9415
6300a14
 
 
 
 
c9a9415
6300a14
 
 
 
 
 
 
 
 
 
c9a9415
6300a14
 
 
 
 
c9a9415
6300a14
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
# coding=utf-8
# Copyright 2020 The HuggingFace Datasets Authors and the current dataset script contributor.
#
# 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.
"""IWSLT 2017 dataset """


import os

import datasets


_HOMEPAGE = "https://sites.google.com/site/iwsltevaluation2017/TED-tasks"

_DESCRIPTION = """\
The IWSLT 2017 Multilingual Task addresses text translation, including zero-shot translation, with a single MT system across all directions including English, German, Dutch, Italian and Romanian. As unofficial task, conventional bilingual text translation is offered between English and Arabic, French, Japanese, Chinese, German and Korean.
"""

_CITATION = """\
@inproceedings{cettolo-etal-2017-overview,
    title = "Overview of the {IWSLT} 2017 Evaluation Campaign",
    author = {Cettolo, Mauro  and
      Federico, Marcello  and
      Bentivogli, Luisa  and
      Niehues, Jan  and
      St{\\"u}ker, Sebastian  and
      Sudoh, Katsuhito  and
      Yoshino, Koichiro  and
      Federmann, Christian},
    booktitle = "Proceedings of the 14th International Conference on Spoken Language Translation",
    month = dec # " 14-15",
    year = "2017",
    address = "Tokyo, Japan",
    publisher = "International Workshop on Spoken Language Translation",
    url = "https://aclanthology.org/2017.iwslt-1.1",
    pages = "2--14",
}
"""

REPO_URL = "https://huggingface.co/datasets/bbaaaa/iwslt14-de-en/resolve/main/"
URL = REPO_URL + "data/de-en.zip"


class IWSLT2017Config(datasets.BuilderConfig):
    """BuilderConfig for NewDataset"""

    def __init__(self, pair, **kwargs):
        """

        Args:
            pair: the language pair to consider
            is_multilingual: Is this pair in the multilingual dataset (download source is different)
            **kwargs: keyword arguments forwarded to super.
        """
        self.pair = pair
        super().__init__(**kwargs)


class IWSLT2017(datasets.GeneratorBasedBuilder):
    """The IWSLT 2017 Evaluation Campaign includes a multilingual TED Talks MT task."""

    VERSION = datasets.Version("1.0.0")

    # This is an example of a dataset with multiple configurations.
    # If you don't want/need to define several sub-sets in your dataset,
    # just remove the BUILDER_CONFIG_CLASS and the BUILDER_CONFIGS attributes.
    BUILDER_CONFIG_CLASS = IWSLT2017Config
    BUILDER_CONFIGS = [
        IWSLT2017Config(
            name="de-en",
            description="A small dataset",
            version=datasets.Version("1.0.0"),
            pair='de-en',
        )
    ]

    def _info(self):
        return datasets.DatasetInfo(
            description=_DESCRIPTION,
            features=datasets.Features(
                {"translation": datasets.features.Translation(languages=self.config.pair.split("-"))}
            ),
            homepage=_HOMEPAGE,
            citation=_CITATION,
        )

    def _split_generators(self, dl_manager):
        """Returns SplitGenerators."""
        source, target = self.config.pair.split("-")
        bi_url = URL
        dl_dir = dl_manager.download_and_extract(bi_url)
        data_dir = os.path.join(dl_dir, f"{source}-{target}")
        return [
            datasets.SplitGenerator(
                name=datasets.Split.TRAIN,
                gen_kwargs={
                    "source_files": [
                        os.path.join(
                            data_dir,
                            f"train.{source}",
                        )
                    ],
                    "target_files": [
                        os.path.join(
                            data_dir,
                            f"train.{target}",
                        )
                    ],
                },
            ),
            datasets.SplitGenerator(
                name=datasets.Split.TEST,
                gen_kwargs={
                    "source_files": [
                        os.path.join(
                            data_dir,
                            f"test.{source}",
                        )
                    ],
                    "target_files": [
                        os.path.join(
                            data_dir,
                            f"test.{target}",
                        )
                    ],
                },
            ),
            datasets.SplitGenerator(
                name=datasets.Split.VALIDATION,
                gen_kwargs={
                    "source_files": [
                        os.path.join(
                            data_dir,
                            f"valid.{source}",
                        )
                    ],
                    "target_files": [
                        os.path.join(
                            data_dir,
                            f"valid.{target}",
                        )
                    ],
                },
            ),
        ]

    def _generate_examples(self, source_files, target_files):
        """Yields examples."""
        id_ = 0
        source, target = self.config.pair.split("-")
        for source_file, target_file in zip(source_files, target_files):
            with open(source_file, "r", encoding="utf-8") as sf:
                with open(target_file, "r", encoding="utf-8") as tf:
                    for source_row, target_row in zip(sf, tf):
                        source_row = source_row.strip()
                        target_row = target_row.strip()

                        if source_row.startswith("<"):
                            if source_row.startswith("<seg"):
                                # Remove <seg id="1">.....</seg>
                                # Very simple code instead of regex or xml parsing
                                part1 = source_row.split(">")[1]
                                source_row = part1.split("<")[0]
                                part1 = target_row.split(">")[1]
                                target_row = part1.split("<")[0]

                                source_row = source_row.strip()
                                target_row = target_row.strip()
                            else:
                                continue

                        yield id_, {"translation": {source: source_row, target: target_row}}
                        id_ += 1