Ejemplo n.º 1
0
def main():
    args = build_argparse().parse_args()
    if args.model_name is None:
        args.model_name = args.model_path.split("/")[-1]
    args.output_dir = args.output_dir + '{}'.format(args.model_name)
    os.makedirs(args.output_dir, exist_ok=True)

    # output dir
    prefix = "_".join([args.model_name, args.task_name])
    logger = TrainLogger(log_dir=args.output_dir, prefix=prefix)

    # device
    logger.info("initializing device")
    args.device, args.n_gpu = prepare_device(args.gpu, args.local_rank)
    seed_everything(args.seed)
    args.model_type = args.model_type.lower()
    config_class, model_class, tokenizer_class = MODEL_CLASSES[args.model_type]

    # data processor
    logger.info("initializing data processor")
    tokenizer = tokenizer_class.from_pretrained(
        args.model_path, do_lower_case=args.do_lower_case)
    processor = ChnSentiProcessor(data_dir=args.data_dir,
                                  tokenizer=tokenizer,
                                  prefix=prefix)
    label_list = processor.get_labels()
    num_labels = len(label_list)
    args.num_labels = num_labels

    # model
    logger.info("initializing model and config")
    config = config_class.from_pretrained(
        args.model_path,
        num_labels=num_labels,
        cache_dir=args.cache_dir if args.cache_dir else None)
    model = model_class.from_pretrained(args.model_path, config=config)
    model.to(args.device)

    # trainer
    logger.info("initializing traniner")
    trainer = TextClassifierTrainer(
        logger=logger,
        args=args,
        collate_fn=processor.collate_fn,
        batch_input_keys=processor.get_batch_keys(),
        metrics=[Accuracy()])
    # do train
    if args.do_train:
        train_dataset = processor.create_dataset(args.train_max_seq_length,
                                                 'train.tsv', 'train')
        eval_dataset = processor.create_dataset(args.eval_max_seq_length,
                                                'dev.tsv', 'dev')
        trainer.train(model,
                      train_dataset=train_dataset,
                      eval_dataset=eval_dataset)
    # do eval
    if args.do_eval and args.local_rank in [-1, 0]:
        results = {}
        eval_dataset = processor.create_dataset(args.eval_max_seq_length,
                                                'dev.tsv', 'dev')
        checkpoints = [args.output_dir]
        if args.eval_all_checkpoints or args.checkpoint_number > 0:
            checkpoints = get_checkpoints(args.output_dir,
                                          args.checkpoint_number, WEIGHTS_NAME)
        logger.info("Evaluate the following checkpoints: %s", checkpoints)
        for checkpoint in checkpoints:
            global_step = checkpoint.split("/")[-1].split("-")[-1]
            model = model_class.from_pretrained(checkpoint, config=config)
            model.to(args.device)
            trainer.evaluate(model,
                             eval_dataset,
                             save_preds=True,
                             prefix=str(global_step))
            if global_step:
                result = {
                    "{}_{}".format(global_step, k): v
                    for k, v in trainer.records['result'].items()
                }
                results.update(result)
        output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
        dict_to_text(output_eval_file, results)

    # do predict
    if args.do_predict:
        test_dataset = processor.create_dataset(args.eval_max_seq_length,
                                                'test.tsv', 'test')
        if args.checkpoint_number == 0:
            raise ValueError("checkpoint number should > 0,but get %d",
                             args.checkpoint_number)
        checkpoints = get_checkpoints(args.output_dir, args.checkpoint_number,
                                      WEIGHTS_NAME)
        for checkpoint in checkpoints:
            global_step = checkpoint.split("/")[-1].split("-")[-1]
            model = model_class.from_pretrained(checkpoint)
            model.to(args.device)
            trainer.predict(model,
                            test_dataset=test_dataset,
                            prefix=str(global_step))
def main():
    args = build_argparse().parse_args()
    if args.model_name is None:
        args.model_name = args.model_path.split("/")[-1]
    args.output_dir = args.output_dir + '{}'.format(args.model_name)
    os.makedirs(args.output_dir, exist_ok=True)

    # output dir
    prefix = "_".join([args.model_name, args.task_name])
    logger = TrainLogger(log_dir=args.output_dir, prefix=prefix)
    # device
    logger.info("initializing device")
    args.device, args.n_gpu = prepare_device(args.gpu, args.local_rank)
    seed_everything(args.seed)
    args.model_type = args.model_type.lower()
    config_class, model_class, tokenizer_class = MODEL_CLASSES[args.model_type]

    # data processor
    logger.info("initializing data processor")
    tokenizer = tokenizer_class.from_pretrained(
        args.model_path, do_lower_case=args.do_lower_case)
    processor = WSCProcessor(data_dir=args.data_dir,
                             tokenizer=tokenizer,
                             prefix=prefix)
    label_list = processor.get_labels()
    num_labels = len(label_list)
    id2label = {i: label for i, label in enumerate(label_list)}
    args.num_labels = num_labels
    # model
    logger.info("initializing model and config")
    config = config_class.from_pretrained(
        args.model_path,
        num_labels=num_labels,
        cache_dir=args.cache_dir if args.cache_dir else None)
    model = model_class.from_pretrained(args.model_path, config=config)
    model.to(args.device)

    # trainer
    logger.info("initializing traniner")
    trainer = TextClassifierTrainer(logger=logger,
                                    args=args,
                                    collate_fn=processor.collate_fn,
                                    input_keys=processor.get_input_keys(),
                                    metrics=[Accuracy()])

    # do train
    if args.do_train:
        train_dataset = processor.create_dataset(args.train_max_seq_length,
                                                 'train.json', 'train')
        eval_dataset = processor.create_dataset(args.eval_max_seq_length,
                                                'dev.json', 'dev')
        trainer.train(model,
                      train_dataset=train_dataset,
                      eval_dataset=eval_dataset)

    # do eval
    if args.do_eval and args.local_rank in [-1, 0]:
        results = {}
        eval_dataset = processor.create_dataset(args.eval_max_seq_length,
                                                'dev.json', 'dev')
        checkpoints = [args.output_dir]
        if args.eval_all_checkpoints or args.checkpoint_number > 0:
            checkpoints = get_checkpoints(args.output_dir,
                                          args.checkpoint_number, WEIGHTS_NAME)
        logger.info("Evaluate the following checkpoints: %s", checkpoints)
        for checkpoint in checkpoints:
            global_step = checkpoint.split("/")[-1].split("-")[-1]
            model = model_class.from_pretrained(checkpoint, config=config)
            model.to(args.device)
            trainer.evaluate(model,
                             eval_dataset,
                             save_preds=True,
                             prefix=str(global_step))
            if global_step:
                result = {
                    "{}_{}".format(global_step, k): v
                    for k, v in trainer.records['result'].items()
                }
                results.update(result)
        output_eval_file = os.path.join(args.output_dir, "eval_results.txt")
        dict_to_text(output_eval_file, results)

    # do predict
    if args.do_predict:
        test_dataset = processor.create_dataset(args.eval_max_seq_length,
                                                'test.json', 'test')
        checkpoints = get_checkpoints(args.output_dir, args.checkpoint_number,
                                      WEIGHTS_NAME)
        logger.info("Evaluate the following checkpoints: %s", checkpoints)
        for checkpoint in checkpoints:
            global_step = checkpoint.split("/")[-1].split("-")[-1]
            model = model_class.from_pretrained(checkpoint)
            model.to(args.device)
            trainer.predict(model,
                            test_dataset=test_dataset,
                            prefix=str(global_step))
            predict_label = trainer.records['preds'].argmax(dim=1).numpy()
            output_submit_file = os.path.join(
                args.output_dir, f"{args.task_name}_predict.json")
            # 保存标签结果
            with open(output_submit_file, "w") as writer:
                for i, pred in enumerate(predict_label):
                    json_d = {}
                    json_d['id'] = i
                    json_d['label'] = str(id2label[pred])
                    writer.write(json.dumps(json_d) + '\n')