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def add_preprocess_args(parser): group = parser.add_argument_group('Preprocessing') group.add_argument('-s', '--source-lang', default=None, metavar='SRC', help='source language') group.add_argument('-t', '--target-lang', default=None, metavar='TARGET', help='target language') group.add_argument('--tra...
def add_dataset_args(parser, train=False, gen=False): group = parser.add_argument_group('Dataset and data loading') group.add_argument('--num-workers', default=1, type=int, metavar='N', help='how many subprocesses to use for data loading') group.add_argument('--skip-invalid-size-inputs-valid-test', action...
def add_distributed_training_args(parser): group = parser.add_argument_group('Distributed training') group.add_argument('--distributed-world-size', type=int, metavar='N', default=max(1, torch.cuda.device_count()), help='total number of GPUs across all nodes (default: all visible GPUs)') group.add_argument...
def add_optimization_args(parser): group = parser.add_argument_group('Optimization') group.add_argument('--max-epoch', '--me', default=0, type=int, metavar='N', help='force stop training at specified epoch') group.add_argument('--max-update', '--mu', default=0, type=int, metavar='N', help='force stop trai...
def add_checkpoint_args(parser): group = parser.add_argument_group('Checkpointing') group.add_argument('--save-dir', metavar='DIR', default='checkpoints', help='path to save checkpoints') group.add_argument('--restore-file', default='checkpoint_last.pt', help='filename from which to load checkpoint (defau...
def add_common_eval_args(group): group.add_argument('--path', metavar='FILE', help='path(s) to model file(s), colon separated') group.add_argument('--remove-bpe', nargs='?', const='@@ ', default=None, help='remove BPE tokens before scoring (can be set to sentencepiece)') group.add_argument('--quiet', acti...
def add_eval_lm_args(parser): group = parser.add_argument_group('LM Evaluation') add_common_eval_args(group) group.add_argument('--output-word-probs', action='store_true', help='if set, outputs words and their predicted log probabilities to standard output') group.add_argument('--output-word-stats', a...
def add_generation_args(parser): group = parser.add_argument_group('Generation') add_common_eval_args(group) group.add_argument('--beam', default=5, type=int, metavar='N', help='beam size') group.add_argument('--nbest', default=1, type=int, metavar='N', help='number of hypotheses to output') group...
def add_interactive_args(parser): group = parser.add_argument_group('Interactive') group.add_argument('--buffer-size', default=0, type=int, metavar='N', help='read this many sentences into a buffer before processing them') group.add_argument('--input', default='-', type=str, metavar='FILE', help='file to ...
def add_model_args(parser): group = parser.add_argument_group('Model configuration') from fairseq.models import ARCH_MODEL_REGISTRY group.add_argument('--arch', '-a', default='fconv', metavar='ARCH', required=True, choices=ARCH_MODEL_REGISTRY.keys(), help='Model Architecture') return group
class MultiprocessingPdb(pdb.Pdb): 'A Pdb wrapper that works in a multiprocessing environment.\n\n Usage: `from fairseq import pdb; pdb.set_trace()`\n ' def __init__(self): pdb.Pdb.__init__(self, nosigint=True) def _cmdloop(self): stdin_bak = sys.stdin with _stdin_lock: ...
def set_trace(): pdb = MultiprocessingPdb() pdb.set_trace(sys._getframe().f_back)
class Trainer(object): 'Main class for data parallel training.\n\n This class supports synchronous distributed data parallel training,\n where multiple workers each have a full model replica and gradients\n are accumulated across workers before each update. We use\n :class:`~torch.nn.parallel.Distribu...
def build_progress_bar(args, iterator, epoch=None, prefix=None, default='tqdm', no_progress_bar='none'): if (args.log_format is None): args.log_format = (no_progress_bar if args.no_progress_bar else default) if ((args.log_format == 'tqdm') and (not sys.stderr.isatty())): args.log_format = 'sim...
def format_stat(stat): if isinstance(stat, Number): stat = '{:g}'.format(stat) elif isinstance(stat, AverageMeter): stat = '{:.3f}'.format(stat.avg) elif isinstance(stat, TimeMeter): stat = '{:g}'.format(round(stat.avg)) elif isinstance(stat, StopwatchMeter): stat = '{:...
class progress_bar(object): 'Abstract class for progress bars.' def __init__(self, iterable, epoch=None, prefix=None): self.iterable = iterable self.offset = getattr(iterable, 'offset', 0) self.epoch = epoch self.prefix = '' if (epoch is not None): self.pre...
class json_progress_bar(progress_bar): 'Log output in JSON format.' def __init__(self, iterable, epoch=None, prefix=None, log_interval=1000): super().__init__(iterable, epoch, prefix) self.log_interval = log_interval self.stats = None def __iter__(self): size = float(len(...
class noop_progress_bar(progress_bar): 'No logging.' def __init__(self, iterable, epoch=None, prefix=None): super().__init__(iterable, epoch, prefix) def __iter__(self): for obj in self.iterable: (yield obj) def log(self, stats, tag='', step=None): 'Log intermedi...
class simple_progress_bar(progress_bar): 'A minimal logger for non-TTY environments.' def __init__(self, iterable, epoch=None, prefix=None, log_interval=1000): super().__init__(iterable, epoch, prefix) self.log_interval = log_interval self.stats = None def __iter__(self): ...
class tqdm_progress_bar(progress_bar): 'Log to tqdm.' def __init__(self, iterable, epoch=None, prefix=None): super().__init__(iterable, epoch, prefix) from tqdm import tqdm self.tqdm = tqdm(iterable, self.prefix, leave=False) def __iter__(self): return iter(self.tqdm) ...
class tensorboard_log_wrapper(progress_bar): 'Log to tensorboard.' def __init__(self, wrapped_bar, tensorboard_logdir, args): self.wrapped_bar = wrapped_bar self.tensorboard_logdir = tensorboard_logdir self.args = args try: from tensorboardX import SummaryWriter ...
def setup_registry(registry_name: str, base_class=None, default=None): assert registry_name.startswith('--') registry_name = registry_name[2:].replace('-', '_') REGISTRY = {} REGISTRY_CLASS_NAMES = set() if (registry_name in REGISTRIES): return REGISTRIES[registry_name] = {'registry': ...
def set_defaults(args, cls): 'Helper to set default arguments based on *add_args*.' if (not hasattr(cls, 'add_args')): return parser = argparse.ArgumentParser(argument_default=argparse.SUPPRESS, allow_abbrev=False) cls.add_args(parser) defaults = argparse.Namespace() for action in pars...
def setup_task(args, **kwargs): return TASK_REGISTRY[args.task].setup_task(args, **kwargs)
def register_task(name): "\n New tasks can be added to fairseq with the\n :func:`~fairseq.tasks.register_task` function decorator.\n\n For example::\n\n @register_task('classification')\n class ClassificationTask(FairseqTask):\n (...)\n\n .. note::\n\n All Tasks must im...
def get_task(name): return TASK_REGISTRY[name]
@register_task('audio_pretraining') class AudioPretrainingTask(FairseqTask): '\n\n ' @staticmethod def add_args(parser): 'Add task-specific arguments to the parser.' parser.add_argument('data', help='path to data directory') parser.add_argument('--sample-rate', default=16000, t...
@register_task('cross_lingual_lm') class CrossLingualLMTask(FairseqTask): '\n Task for training cross-lingual language models.\n For more details look at: https://arxiv.org/pdf/1901.07291.pdf\n Args:\n dictionary (Dictionary): the dictionary for the input of the task\n ' @staticmethod ...
class FairseqTask(object): '\n Tasks store dictionaries and provide helpers for loading/iterating over\n Datasets, initializing the Model/Criterion and calculating the loss.\n ' @staticmethod def add_args(parser): 'Add task-specific arguments to the parser.' pass def __init_...
@register_task('language_modeling') class LanguageModelingTask(FairseqTask): '\n Train a language model.\n\n Args:\n dictionary (~fairseq.data.Dictionary): the dictionary for the input of\n the language model\n output_dictionary (~fairseq.data.Dictionary): the dictionary for the\n ...
@register_task('legacy_masked_lm') class LegacyMaskedLMTask(FairseqTask): '\n Task for training Masked LM (BERT) model.\n Args:\n dictionary (Dictionary): the dictionary for the input of the task\n ' @staticmethod def add_args(parser): 'Add task-specific arguments to the parser.' ...
@register_task('masked_lm') class MaskedLMTask(FairseqTask): 'Task for training masked language models (e.g., BERT, RoBERTa).' @staticmethod def add_args(parser): 'Add task-specific arguments to the parser.' parser.add_argument('data', help='colon separated path to data directories list, ...
@register_task('multilingual_masked_lm') class MultiLingualMaskedLMTask(FairseqTask): 'Task for training masked language models (e.g., BERT, RoBERTa).' @staticmethod def add_args(parser): 'Add task-specific arguments to the parser.' parser.add_argument('data', help='colon separated path t...
def _lang_token(lang: str): return '__{}__'.format(lang)
def _lang_token_index(dic: Dictionary, lang: str): 'Return language token index.' idx = dic.index(_lang_token(lang)) assert (idx != dic.unk_index), 'cannot find language token for lang {}'.format(lang) return idx
@register_task('multilingual_translation') class MultilingualTranslationTask(FairseqTask): 'A task for training multiple translation models simultaneously.\n\n We iterate round-robin over batches from multiple language pairs, ordered\n according to the `--lang-pairs` argument.\n\n The training loop is ro...
def _get_bt_dataset_key(lang_pair): return ('bt:' + lang_pair)
def _get_denoising_dataset_key(lang_pair): return ('denoising:' + lang_pair)
def parse_lambda_config(x): '\n Parse the configuration of lambda coefficient (for scheduling).\n x = "3" # lambda will be a constant equal to x\n x = "0:1,1000:0" # lambda will start from 1 and linearly decrease\n # to 0 during the first 1000 iteratio...
@register_task('semisupervised_translation') class SemisupervisedTranslationTask(MultilingualTranslationTask): 'A task for training multiple translation models simultaneously.\n\n We iterate round-robin over batches from multiple language pairs, ordered\n according to the `--lang-pairs` argument.\n\n The...
@register_task('sentence_prediction') class SentencePredictionTask(FairseqTask): '\n Sentence (or sentence pair) prediction (classification or regression) task.\n\n Args:\n dictionary (Dictionary): the dictionary for the input of the task\n ' @staticmethod def add_args(parser): 'A...
@register_task('sentence_ranking') class SentenceRankingTask(FairseqTask): '\n Ranking task on multiple sentences.\n\n Args:\n dictionary (Dictionary): the dictionary for the input of the task\n ' @staticmethod def add_args(parser): 'Add task-specific arguments to the parser.' ...
def load_langpair_dataset(data_path, split, src, src_dict, tgt, tgt_dict, combine, dataset_impl, upsample_primary, left_pad_source, left_pad_target, max_source_positions, max_target_positions, prepend_bos=False, load_alignments=False): def split_exists(split, src, tgt, lang, data_path): filename = os.pat...
@register_task('translation') class TranslationTask(FairseqTask): '\n Translate from one (source) language to another (target) language.\n\n Args:\n src_dict (~fairseq.data.Dictionary): dictionary for the source language\n tgt_dict (~fairseq.data.Dictionary): dictionary for the target language...
@register_task('translation_from_pretrained_xlm') class TranslationFromPretrainedXLMTask(TranslationTask): '\n Same as TranslationTask except use the MaskedLMDictionary class so that\n we can load data that was binarized with the MaskedLMDictionary class.\n\n This task should be used for the entire train...
def tokenize_line(line): line = SPACE_NORMALIZER.sub(' ', line) line = line.strip() return line.split()
class Trainer(object): 'Main class for data parallel training.\n\n This class supports synchronous distributed data parallel training,\n where multiple workers each have a full model replica and gradients\n are accumulated across workers before each update. We use\n :class:`~torch.nn.parallel.Distribu...
class WordStat(object): def __init__(self, word, is_bpe): self.word = word self.is_bpe = is_bpe self.log_prob = 0 self.next_word_prob = 0 self.count = 0 self.missing_next_words = 0 def add(self, log_prob, next_word_prob): ' increments counters for the ...
def main(parsed_args): assert (parsed_args.path is not None), '--path required for evaluation!' utils.import_user_module(parsed_args) print(parsed_args) use_cuda = (torch.cuda.is_available() and (not parsed_args.cpu)) task = tasks.setup_task(parsed_args) print('| loading model(s) from {}'.form...
def cli_main(): parser = options.get_eval_lm_parser() args = options.parse_args_and_arch(parser) main(args)
def buffered_read(input, buffer_size): buffer = [] with fileinput.input(files=[input], openhook=fileinput.hook_encoded('utf-8')) as h: for src_str in h: buffer.append(src_str.strip()) if (len(buffer) >= buffer_size): (yield buffer) buffer = [] ...
def make_batches(lines, args, task, max_positions, encode_fn): tokens = [task.source_dictionary.encode_line(encode_fn(src_str), add_if_not_exist=False).long() for src_str in lines] lengths = torch.LongTensor([t.numel() for t in tokens]) itr = task.get_batch_iterator(dataset=task.build_dataset_for_inferenc...
def main(args): utils.import_user_module(args) if (args.buffer_size < 1): args.buffer_size = 1 if ((args.max_tokens is None) and (args.max_sentences is None)): args.max_sentences = 1 assert ((not args.sampling) or (args.nbest == args.beam)), '--sampling requires --nbest to be equal to ...
def cli_main(): parser = options.get_generation_parser(interactive=True) args = options.parse_args_and_arch(parser) main(args)
def main(args): utils.import_user_module(args) print(args) os.makedirs(args.destdir, exist_ok=True) target = (not args.only_source) task = tasks.get_task(args.task) def train_path(lang): return '{}{}'.format(args.trainpref, (('.' + lang) if lang else '')) def file_name(prefix, la...
def binarize(args, filename, vocab, output_prefix, lang, offset, end, append_eos=True): ds = indexed_dataset.make_builder(dataset_dest_file(args, output_prefix, lang, 'bin'), impl=args.dataset_impl, vocab_size=len(vocab)) def consumer(tensor): ds.add_item(tensor) res = Binarizer.binarize(filename...
def binarize_alignments(args, filename, parse_alignment, output_prefix, offset, end): ds = indexed_dataset.make_builder(dataset_dest_file(args, output_prefix, None, 'bin'), impl=args.dataset_impl, vocab_size=None) def consumer(tensor): ds.add_item(tensor) res = Binarizer.binarize_alignments(filen...
def dataset_dest_prefix(args, output_prefix, lang): base = '{}/{}'.format(args.destdir, output_prefix) if (lang is not None): lang_part = '.{}-{}.{}'.format(args.source_lang, args.target_lang, lang) elif args.only_source: lang_part = '' else: lang_part = '.{}-{}'.format(args.so...
def dataset_dest_file(args, output_prefix, lang, extension): base = dataset_dest_prefix(args, output_prefix, lang) return '{}.{}'.format(base, extension)
def get_offsets(input_file, num_workers): return Binarizer.find_offsets(input_file, num_workers)
def cli_main(): parser = options.get_preprocessing_parser() args = parser.parse_args() main(args)
def get_parser(): parser = argparse.ArgumentParser(description='Command-line script for BLEU scoring.') parser.add_argument('-s', '--sys', default='-', help='system output') parser.add_argument('-r', '--ref', required=True, help='references') parser.add_argument('-o', '--order', default=4, metavar='N'...
def main(): parser = get_parser() args = parser.parse_args() print(args) assert ((args.sys == '-') or os.path.exists(args.sys)), 'System output file {} does not exist'.format(args.sys) assert os.path.exists(args.ref), 'Reference file {} does not exist'.format(args.ref) dict = dictionary.Dictio...
class NumpyExtension(Extension): 'Source: https://stackoverflow.com/a/54128391' def __init__(self, *args, **kwargs): self.__include_dirs = [] super().__init__(*args, **kwargs) @property def include_dirs(self): import numpy return (self.__include_dirs + [numpy.get_incl...
def main(args, init_distributed=False): utils.import_user_module(args) try: from fairseq.fb_pathmgr import fb_pathmgr global fb_pathmgr_registerd if (not fb_pathmgr_registerd): fb_pathmgr.register() fb_pathmgr_registerd = True except (ModuleNotFoundError, Im...
def train(args, trainer, task, epoch_itr): 'Train the model for one epoch.' update_freq = (args.update_freq[(epoch_itr.epoch - 1)] if (epoch_itr.epoch <= len(args.update_freq)) else args.update_freq[(- 1)]) itr = epoch_itr.next_epoch_itr(fix_batches_to_gpus=args.fix_batches_to_gpus, shuffle=(epoch_itr.epo...
def get_training_stats(trainer): stats = collections.OrderedDict() stats['loss'] = trainer.get_meter('train_loss') if (trainer.get_meter('train_nll_loss').count > 0): nll_loss = trainer.get_meter('train_nll_loss') stats['nll_loss'] = nll_loss else: nll_loss = trainer.get_meter(...
def validate(args, trainer, task, epoch_itr, subsets): 'Evaluate the model on the validation set(s) and return the losses.' if (args.fixed_validation_seed is not None): utils.set_torch_seed(args.fixed_validation_seed) valid_losses = [] for subset in subsets: itr = task.get_batch_iterat...
def get_valid_stats(trainer, args, extra_meters=None): stats = collections.OrderedDict() stats['loss'] = trainer.get_meter('valid_loss') if (trainer.get_meter('valid_nll_loss').count > 0): nll_loss = trainer.get_meter('valid_nll_loss') stats['nll_loss'] = nll_loss else: nll_los...
def distributed_main(i, args, start_rank=0): args.device_id = i if (args.distributed_rank is None): args.distributed_rank = (start_rank + i) main(args, init_distributed=True)
def cli_main(): parser = options.get_training_parser() args = options.parse_args_and_arch(parser) if (args.distributed_init_method is None): distributed_utils.infer_init_method(args) if (args.distributed_init_method is not None): if ((torch.cuda.device_count() > 1) and (not args.distri...
def buffered_read(input, buffer_size): buffer = [] with fileinput.input(files=[input], openhook=fileinput.hook_encoded('utf-8')) as h: for src_str in h: buffer.append(src_str.strip()) if (len(buffer) >= buffer_size): (yield buffer) buffer = [] ...
def make_batches(lines, args, task, max_positions, encode_fn): tokens = [task.source_dictionary.encode_line(encode_fn(src_str), add_if_not_exist=False).long() for src_str in lines] lengths = torch.LongTensor([t.numel() for t in tokens]) itr = task.get_batch_iterator(dataset=task.build_dataset_for_inferenc...
def main(args): utils.import_user_module(args) if (args.buffer_size < 1): args.buffer_size = 1 if ((args.max_tokens is None) and (args.max_sentences is None)): args.max_sentences = 1 assert ((not args.sampling) or (args.nbest == args.beam)), '--sampling requires --nbest to be equal to ...
def cli_main(): parser = options.get_generation_parser(interactive=True) args = options.parse_args_and_arch(parser) main(args)
def main(args): utils.import_user_module(args) print(args) os.makedirs(args.destdir, exist_ok=True) target = (not args.only_source) task = tasks.get_task(args.task) def train_path(lang): return '{}{}'.format(args.trainpref, (('.' + lang) if lang else '')) def file_name(prefix, la...
def binarize(args, filename, vocab, output_prefix, lang, offset, end, append_eos=True): ds = indexed_dataset.make_builder(dataset_dest_file(args, output_prefix, lang, 'bin'), impl=args.dataset_impl, vocab_size=len(vocab)) def consumer(tensor): ds.add_item(tensor) res = Binarizer.binarize(filename...
def binarize_alignments(args, filename, parse_alignment, output_prefix, offset, end): ds = indexed_dataset.make_builder(dataset_dest_file(args, output_prefix, None, 'bin'), impl=args.dataset_impl, vocab_size=None) def consumer(tensor): ds.add_item(tensor) res = Binarizer.binarize_alignments(filen...
def dataset_dest_prefix(args, output_prefix, lang): base = '{}/{}'.format(args.destdir, output_prefix) if (lang is not None): lang_part = '.{}-{}.{}'.format(args.source_lang, args.target_lang, lang) elif args.only_source: lang_part = '' else: lang_part = '.{}-{}'.format(args.so...
def dataset_dest_file(args, output_prefix, lang, extension): base = dataset_dest_prefix(args, output_prefix, lang) return '{}.{}'.format(base, extension)
def get_offsets(input_file, num_workers): return Binarizer.find_offsets(input_file, num_workers)
def cli_main(): parser = options.get_preprocessing_parser() args = parser.parse_args() main(args)
def get_parser(): parser = argparse.ArgumentParser(description='Command-line script for BLEU scoring.') parser.add_argument('-s', '--sys', default='-', help='system output') parser.add_argument('-r', '--ref', required=True, help='references') parser.add_argument('-o', '--order', default=4, metavar='N'...
def main(): parser = get_parser() args = parser.parse_args() print(args) assert ((args.sys == '-') or os.path.exists(args.sys)), 'System output file {} does not exist'.format(args.sys) assert os.path.exists(args.ref), 'Reference file {} does not exist'.format(args.ref) dict = dictionary.Dictio...
def average_checkpoints(inputs): "Loads checkpoints from inputs and returns a model with averaged weights.\n\n Args:\n inputs: An iterable of string paths of checkpoints to load from.\n\n Returns:\n A dict of string keys mapping to various values. The 'model' key\n from the returned dict shou...
def last_n_checkpoints(paths, n, update_based, upper_bound=None): assert (len(paths) == 1) path = paths[0] if update_based: pt_regexp = re.compile('checkpoint_\\d+_(\\d+)\\.pt') else: pt_regexp = re.compile('checkpoint(\\d+)\\.pt') files = os.listdir(path) entries = [] for ...
def main(): parser = argparse.ArgumentParser(description='Tool to average the params of input checkpoints to produce a new checkpoint') parser.add_argument('--inputs', required=True, nargs='+', help='Input checkpoint file paths.') parser.add_argument('--output', required=True, metavar='FILE', help='Write ...
class NumpyExtension(Extension): 'Source: https://stackoverflow.com/a/54128391' def __init__(self, *args, **kwargs): self.__include_dirs = [] super().__init__(*args, **kwargs) @property def include_dirs(self): import numpy return (self.__include_dirs + [numpy.get_incl...
def main(args, init_distributed=False): utils.import_user_module(args) try: from fairseq.fb_pathmgr import fb_pathmgr global fb_pathmgr_registerd if (not fb_pathmgr_registerd): fb_pathmgr.register() fb_pathmgr_registerd = True except (ModuleNotFoundError, Im...
def train(args, trainer, task, epoch_itr): 'Train the model for one epoch.' update_freq = (args.update_freq[(epoch_itr.epoch - 1)] if (epoch_itr.epoch <= len(args.update_freq)) else args.update_freq[(- 1)]) itr = epoch_itr.next_epoch_itr(fix_batches_to_gpus=args.fix_batches_to_gpus, shuffle=(epoch_itr.epo...
def get_training_stats(trainer): stats = collections.OrderedDict() stats['loss'] = trainer.get_meter('train_loss') if (trainer.get_meter('train_nll_loss').count > 0): nll_loss = trainer.get_meter('train_nll_loss') stats['nll_loss'] = nll_loss else: nll_loss = trainer.get_meter(...
def validate(args, trainer, task, epoch_itr, subsets): 'Evaluate the model on the validation set(s) and return the losses.' if (args.fixed_validation_seed is not None): utils.set_torch_seed(args.fixed_validation_seed) valid_losses = [] for subset in subsets: itr = task.get_batch_iterat...
def get_valid_stats(trainer, args, extra_meters=None): stats = collections.OrderedDict() stats['loss'] = trainer.get_meter('valid_loss') if (trainer.get_meter('valid_nll_loss').count > 0): nll_loss = trainer.get_meter('valid_nll_loss') stats['nll_loss'] = nll_loss else: nll_los...
def distributed_main(i, args, start_rank=0): args.device_id = i if (args.distributed_rank is None): args.distributed_rank = (start_rank + i) main(args, init_distributed=True)
def cli_main(): parser = options.get_training_parser() args = options.parse_args_and_arch(parser) if (args.distributed_init_method is None): distributed_utils.infer_init_method(args) if (args.distributed_init_method is not None): if ((torch.cuda.device_count() > 1) and (not args.distri...
def main(args, override_args=None): utils.import_user_module(args) use_fp16 = args.fp16 use_cuda = (torch.cuda.is_available() and (not args.cpu)) if (override_args is not None): overrides = vars(override_args) overrides.update(eval(getattr(override_args, 'model_overrides', '{}'))) ...
def cli_main(): parser = options.get_validation_parser() args = options.parse_args_and_arch(parser) override_parser = options.get_validation_parser() override_args = options.parse_args_and_arch(override_parser, suppress_defaults=True) main(args, override_args)
@lru_cache() def default_bpe(): return os.path.join(os.path.dirname(os.path.abspath(__file__)), 'bpe_simple_vocab_16e6.txt.gz')
@lru_cache() def bytes_to_unicode(): "\n Returns list of utf-8 byte and a corresponding list of unicode strings.\n The reversible bpe codes work on unicode strings.\n This means you need a large # of unicode characters in your vocab if you want to avoid UNKs.\n When you're at something like a 10B toke...
def get_pairs(word): 'Return set of symbol pairs in a word.\n Word is represented as tuple of symbols (symbols being variable-length strings).\n ' pairs = set() prev_char = word[0] for char in word[1:]: pairs.add((prev_char, char)) prev_char = char return pairs