示例#1
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    parser.add_argument(
        "--max_choices_num",
        default=4,
        type=int,
        help=
        "The maximum number of cadicate answer, shorter than this will be padded."
    )

    parser.add_argument(
        "--tokenizer",
        choices=["bert", "char", "space"],
        default="bert",
        help="Specify the tokenizer."
        "Original Google BERT uses bert tokenizer on Chinese corpus."
        "Char tokenizer segments sentences into characters."
        "Space tokenizer segments sentences into words according to space.")

    args = parser.parse_args()
    args.labels_num = args.max_choices_num

    # Load the hyperparameters from the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    # Build tokenizer.
    args.tokenizer = str2tokenizer[args.tokenizer](args)

    # Build multiple choice model.
    model = MultipleChoice(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Training phase.
    trainset = read_dataset(args, args.train_path)
    random.shuffle(trainset)
    instances_num = len(trainset)
    batch_size = args.batch_size

    src = torch.LongTensor([example[0] for example in trainset])
    tgt = torch.LongTensor([example[1] for example in trainset])
    seg = torch.LongTensor([example[2] for example in trainset])

    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    print("Batch size: ", batch_size)
    print("The number of training instances:", instances_num)

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)
        args.amp = amp

    if torch.cuda.device_count() > 1:
        print("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss, result, best_result = 0.0, 0.0, 0.0

    print("Start training.")

    for epoch in range(1, args.epochs_num + 1):
        model.train()
        for i, (src_batch, tgt_batch, seg_batch,
                _) in enumerate(batch_loader(batch_size, src, tgt, seg)):

            loss = train_model(args, model, optimizer, scheduler, src_batch,
                               tgt_batch, seg_batch)
            total_loss += loss.item()

            if (i + 1) % args.report_steps == 0:
                print("Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                      format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.0

        result = evaluate(args, read_dataset(args, args.dev_path))
        if result[0] > best_result:
            best_result = result[0]
            save_model(model, args.output_model_path)

    # Evaluation phase.
    if args.test_path is not None:
        print("Test set evaluation.")
        if torch.cuda.device_count() > 1:
            model.module.load_state_dict(torch.load(args.output_model_path))
        else:
            model.load_state_dict(torch.load(args.output_model_path))
        evaluate(args, read_dataset(args, args.test_path))
示例#2
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    parser.add_argument("--train_answer_path",
                        type=str,
                        required=True,
                        help="Path of the answers for trainset.")
    parser.add_argument("--dev_answer_path",
                        type=str,
                        required=True,
                        help="Path of the answers for devset.")

    parser.add_argument(
        "--max_choices_num",
        default=10,
        type=int,
        help=
        "The maximum number of cadicate answer, shorter than this will be padded."
    )

    args = parser.parse_args()

    args.labels_num = args.max_choices_num
    if args.output_model_path == None:
        args.output_model_path = "./models/chid_model.bin"

    # Load the hyperparameters from the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    # Build tokenizer.
    args.tokenizer = CharTokenizer(args)

    # Build multiple choice model.
    model = MultipleChoice(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Training phase.
    trainset = read_dataset(args, args.train_path, args.train_answer_path)
    random.shuffle(trainset)
    instances_num = len(trainset)
    batch_size = args.batch_size

    src = torch.LongTensor([example[0] for example in trainset])
    tgt = torch.LongTensor([example[1] for example in trainset])
    seg = torch.LongTensor([example[2] for example in trainset])

    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    print("Batch size: ", batch_size)
    print("The number of training instances:", instances_num)

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)
        args.amp = amp

    if torch.cuda.device_count() > 1:
        print("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss, result, best_result = 0., 0., 0.

    print("Start training.")

    for epoch in range(1, args.epochs_num + 1):
        model.train()
        for i, (src_batch, tgt_batch, seg_batch,
                _) in enumerate(batch_loader(batch_size, src, tgt, seg)):

            loss = train_model(args, model, optimizer, scheduler, src_batch,
                               tgt_batch, seg_batch)
            total_loss += loss.item()

            if (i + 1) % args.report_steps == 0:
                print("Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                      format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.

        result = evaluate(
            args, read_dataset(args, args.dev_path, args.dev_answer_path))
        if result[0] > best_result:
            best_result = result[0]
            save_model(model, args.output_model_path)
示例#3
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    parser.add_argument(
        "--doc_stride",
        default=128,
        type=int,
        help=
        "When splitting up a long document into chunks, how much stride to take between chunks."
    )

    args = parser.parse_args()

    # Load the hyperparameters from the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    # Build tokenizer.
    args.tokenizer = CharTokenizer(args)

    # Build machine reading comprehension model.
    model = MachineReadingComprehension(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Build tokenizer.
    args.tokenizer = CharTokenizer(args)

    # Training phase.
    batch_size = args.batch_size
    print("Batch size: ", batch_size)
    trainset, _ = read_dataset(args, args.train_path)
    random.shuffle(trainset)
    instances_num = len(trainset)

    src = torch.LongTensor([sample[0] for sample in trainset])
    seg = torch.LongTensor([sample[1] for sample in trainset])
    start_position = torch.LongTensor([sample[2] for sample in trainset])
    end_position = torch.LongTensor([sample[3] for sample in trainset])

    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    print("The number of training instances:", instances_num)

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)

    if torch.cuda.device_count() > 1:
        print("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss = 0.0
    result = 0.0
    best_result = 0.0

    print("Start training.")

    for epoch in range(1, args.epochs_num + 1):
        model.train()

        for i, (src_batch, seg_batch, start_position_batch,
                end_position_batch) in enumerate(
                    batch_loader(batch_size, src, seg, start_position,
                                 end_position)):
            loss = train(args, model, optimizer, scheduler, src_batch,
                         seg_batch, start_position_batch, end_position_batch)
            total_loss += loss.item()
            if (i + 1) % args.report_steps == 0:
                print("Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                      format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.0

        result = evaluate(args, *read_dataset(args, args.dev_path))
        if result > best_result:
            best_result = result
            save_model(model, args.output_model_path)

    # Evaluation phase.
    if args.test_path is not None:
        print("Test set evaluation.")
        if torch.cuda.device_count() > 1:
            model.module.load_state_dict(torch.load(args.output_model_path))
        else:
            model.load_state_dict(torch.load(args.output_model_path))
        evaluate(args, *read_dataset(args, args.test_path))
示例#4
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    parser.add_argument("--label2id_path",
                        type=str,
                        required=True,
                        help="Path of the label2id file.")

    args = parser.parse_args()

    # Load the hyperparameters of the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    args.begin_ids = []

    with open(args.label2id_path, mode="r", encoding="utf-8") as f:
        l2i = json.load(f)
        print("Labels: ", l2i)
        l2i["[PAD]"] = len(l2i)
        for label in l2i:
            if label.startswith("B"):
                args.begin_ids.append(l2i[label])

    args.l2i = l2i

    args.labels_num = len(l2i)

    args.tokenizer = SpaceTokenizer(args)

    # Build sequence labeling model.
    model = NerTagger(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Training phase.
    instances = read_dataset(args, args.train_path)

    src = torch.LongTensor([ins[0] for ins in instances])
    tgt = torch.LongTensor([ins[1] for ins in instances])
    seg = torch.LongTensor([ins[2] for ins in instances])

    instances_num = src.size(0)
    batch_size = args.batch_size
    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    print("Batch size: ", batch_size)
    print("The number of training instances:", instances_num)

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)

    if torch.cuda.device_count() > 1:
        print("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss, f1, best_f1 = 0.0, 0.0, 0.0

    print("Start training.")

    for epoch in range(1, args.epochs_num + 1):
        model.train()
        for i, (src_batch, tgt_batch,
                seg_batch) in enumerate(batch_loader(batch_size, src, tgt,
                                                     seg)):
            loss = train(args, model, optimizer, scheduler, src_batch,
                         tgt_batch, seg_batch)
            total_loss += loss.item()
            if (i + 1) % args.report_steps == 0:
                print("Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                      format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.0

        f1 = evaluate(args, read_dataset(args, args.dev_path))
        if f1 > best_f1:
            best_f1 = f1
            save_model(model, args.output_model_path)
        else:
            continue

    # Evaluation phase.
    if args.test_path is not None:
        print("Test set evaluation.")
        if torch.cuda.device_count() > 1:
            args.model.module.load_state_dict(
                torch.load(args.output_model_path))
        else:
            args.model.load_state_dict(torch.load(args.output_model_path))
        evaluate(args, read_dataset(args, args.test_path))
示例#5
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    parser.add_argument("--pooling",
                        choices=["mean", "max", "first", "last"],
                        default="first",
                        help="Pooling type.")

    tokenizer_opts(parser)

    parser.add_argument("--soft_targets",
                        action='store_true',
                        help="Train model with logits.")
    parser.add_argument("--soft_alpha",
                        type=float,
                        default=0.5,
                        help="Weight of the soft targets loss.")

    args = parser.parse_args()

    # Load the hyperparameters from the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    # Count the number of labels.
    args.labels_num = count_labels_num(args.train_path)

    # Build tokenizer.
    args.tokenizer = str2tokenizer[args.tokenizer](args)

    # Build classification model.
    model = Classifier(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Training phase.
    trainset = read_dataset(args, args.train_path)
    random.shuffle(trainset)
    instances_num = len(trainset)
    batch_size = args.batch_size

    src = torch.LongTensor([example[0] for example in trainset])
    tgt = torch.LongTensor([example[1] for example in trainset])
    seg = torch.LongTensor([example[2] for example in trainset])
    if args.soft_targets:
        soft_tgt = torch.FloatTensor([example[3] for example in trainset])
    else:
        soft_tgt = None

    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    print("Batch size: ", batch_size)
    print("The number of training instances:", instances_num)

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)
        args.amp = amp

    if torch.cuda.device_count() > 1:
        print("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss, result, best_result = 0.0, 0.0, 0.0

    print("Start training.")

    for epoch in range(1, args.epochs_num + 1):
        model.train()
        for i, (src_batch, tgt_batch, seg_batch, soft_tgt_batch) in enumerate(
                batch_loader(batch_size, src, tgt, seg, soft_tgt)):
            loss = train_model(args, model, optimizer, scheduler, src_batch,
                               tgt_batch, seg_batch, soft_tgt_batch)
            total_loss += loss.item()
            if (i + 1) % args.report_steps == 0:
                print("Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                      format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.0

        result = evaluate(args, read_dataset(args, args.dev_path))
        if result[0] > best_result:
            best_result = result[0]
            save_model(model, args.output_model_path)

    # Evaluation phase.
    if args.test_path is not None:
        print("Test set evaluation.")
        if torch.cuda.device_count() > 1:
            args.model.module.load_state_dict(
                torch.load(args.output_model_path))
        else:
            args.model.load_state_dict(torch.load(args.output_model_path))
        evaluate(args, read_dataset(args, args.test_path), True)
示例#6
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    tokenizer_opts(parser)

    args = parser.parse_args()

    # Load the hyperparameters from the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    # Count the number of labels.
    args.labels_num = count_labels_num(args.train_path)

    # Build tokenizer.
    args.tokenizer = str2tokenizer[args.tokenizer](args)

    # Build classification model.
    model = SiameseClassifier(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    # Get logger.
    args.logger = init_logger(args)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Training phase.
    trainset = read_dataset(args, args.train_path)
    instances_num = len(trainset)
    batch_size = args.batch_size

    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    args.logger.info("Batch size: {}".format(batch_size))
    args.logger.info(
        "The number of training instances: {}".format(instances_num))

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)
        args.amp = amp

    if torch.cuda.device_count() > 1:
        args.logger.info("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss, result, best_result = 0.0, 0.0, 0.0

    args.logger.info("Start training.")

    for epoch in range(1, args.epochs_num + 1):
        random.shuffle(trainset)
        src_a = torch.LongTensor([example[0][0] for example in trainset])
        src_b = torch.LongTensor([example[0][1] for example in trainset])
        tgt = torch.LongTensor([example[1] for example in trainset])
        seg_a = torch.LongTensor([example[2][0] for example in trainset])
        seg_b = torch.LongTensor([example[2][1] for example in trainset])

        model.train()
        for i, (src_batch, tgt_batch, seg_batch) in enumerate(
                batch_loader(batch_size, (src_a, src_b), tgt, (seg_a, seg_b))):
            loss = train_model(args, model, optimizer, scheduler, src_batch,
                               tgt_batch, seg_batch)
            total_loss += loss.item()
            if (i + 1) % args.report_steps == 0:
                args.logger.info(
                    "Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                    format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.0

        result = evaluate(args, read_dataset(args, args.dev_path))
        if result[0] > best_result:
            best_result = result[0]
            save_model(model, args.output_model_path)

    # Evaluation phase.
    if args.test_path is not None:
        args.logger.info("Test set evaluation.")
        if torch.cuda.device_count() > 1:
            args.model.module.load_state_dict(
                torch.load(args.output_model_path))
        else:
            args.model.load_state_dict(torch.load(args.output_model_path))
        evaluate(args, read_dataset(args, args.test_path))
示例#7
0
def main():
    parser = argparse.ArgumentParser(
        formatter_class=argparse.ArgumentDefaultsHelpFormatter)

    finetune_opts(parser)

    tokenizer_opts(parser)

    parser.add_argument("--pooling",
                        choices=["mean", "max", "first", "last"],
                        default="first",
                        help="Pooling type.")
    parser.add_argument("--temperature", type=float, default=0.05)
    parser.add_argument("--eval_steps",
                        type=int,
                        default=200,
                        help="Evaluate frequency.")

    args = parser.parse_args()

    # Load the hyperparameters from the config file.
    args = load_hyperparam(args)

    set_seed(args.seed)

    # Build tokenizer.
    args.tokenizer = str2tokenizer[args.tokenizer](args)

    # Build classification model.
    model = SimCSE(args)

    # Load or initialize parameters.
    load_or_initialize_parameters(args, model)

    args.device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
    model = model.to(args.device)

    # Training phase.
    trainset = read_dataset(args, args.train_path)
    random.shuffle(trainset)
    instances_num = len(trainset)
    batch_size = args.batch_size

    src_a = torch.LongTensor([example[0][0] for example in trainset])
    src_b = torch.LongTensor([example[0][1] for example in trainset])
    tgt = torch.FloatTensor([example[1] for example in trainset])
    seg_a = torch.LongTensor([example[2][0] for example in trainset])
    seg_b = torch.LongTensor([example[2][1] for example in trainset])

    args.train_steps = int(instances_num * args.epochs_num / batch_size) + 1

    print("Batch size: ", batch_size)
    print("The number of training instances:", instances_num)

    optimizer, scheduler = build_optimizer(args, model)

    if args.fp16:
        try:
            from apex import amp
        except ImportError:
            raise ImportError(
                "Please install apex from https://www.github.com/nvidia/apex to use fp16 training."
            )
        model, optimizer = amp.initialize(model,
                                          optimizer,
                                          opt_level=args.fp16_opt_level)
        args.amp = amp

    if torch.cuda.device_count() > 1:
        print("{} GPUs are available. Let's use them.".format(
            torch.cuda.device_count()))
        model = torch.nn.DataParallel(model)
    args.model = model

    total_loss, result, best_result = 0.0, 0.0, 0.0

    print("Start training.")
    for epoch in range(1, args.epochs_num + 1):
        model.train()
        for i, (src_batch, tgt_batch, seg_batch) in enumerate(
                batch_loader(batch_size, (src_a, src_b), tgt, (seg_a, seg_b))):
            model.zero_grad()

            src_a_batch, src_b_batch = src_batch
            seg_a_batch, seg_b_batch = seg_batch

            src_a_batch = src_a_batch.to(args.device)
            src_b_batch = src_b_batch.to(args.device)

            seg_a_batch = seg_a_batch.to(args.device)
            seg_b_batch = seg_b_batch.to(args.device)

            features_0, features_1 = model((src_a_batch, src_b_batch),
                                           (seg_a_batch, seg_b_batch))

            similarity_matrix = similarity(features_0, features_1,
                                           args.temperature)
            tgt_batch = torch.arange(similarity_matrix.size(0),
                                     device=similarity_matrix.device,
                                     dtype=torch.long)
            loss = nn.CrossEntropyLoss()(similarity_matrix, tgt_batch)

            if args.fp16:
                with args.amp.scale_loss(loss, optimizer) as scaled_loss:
                    scaled_loss.backward()
            else:
                loss.backward()

            optimizer.step()
            scheduler.step()

            total_loss += loss.item()
            if (i + 1) % args.report_steps == 0:
                print("Epoch id: {}, Training steps: {}, Avg loss: {:.3f}".
                      format(epoch, i + 1, total_loss / args.report_steps))
                total_loss = 0.0

            if (i + 1) % args.eval_steps == 0 or (i + 1) == math.ceil(
                    instances_num / batch_size):
                result = evaluate(args, read_dataset(args, args.dev_path))
                print(
                    "Epoch id: {}, Training steps: {}, Evaluate result: {}, Best result: {}"
                    .format(epoch, i + 1, result, best_result))
                if result > best_result:
                    best_result = result
                    save_model(model, args.output_model_path)
                    print(
                        "It is the best model until now. Save it to {}".format(
                            args.output_model_path))