""" Sentiment Classification Task """ from __future__ import absolute_import from __future__ import division from __future__ import print_function import os import time import argparse import numpy as np import multiprocessing import sys sys.path.append("../models/classification/") sys.path.append("../") from nets import bow_net from nets import lstm_net from nets import cnn_net from nets import bilstm_net from nets import gru_net from models.model_check import check_cuda import paddle import paddle.fluid as fluid import reader from config import SentaConfig from utils import ArgumentGroup, print_arguments from utils import init_checkpoint # yapf: disable parser = argparse.ArgumentParser(__doc__) model_g = ArgumentGroup(parser, "model", "model configuration and paths.") model_g.add_arg("senta_config_path", str, None, "Path to the json file for senta model config.") model_g.add_arg("init_checkpoint", str, None, "Init checkpoint to resume training from.") model_g.add_arg("checkpoints", str, "checkpoints", "Path to save checkpoints") train_g = ArgumentGroup(parser, "training", "training options.") train_g.add_arg("epoch", int, 10, "Number of epoches for training.") train_g.add_arg("save_steps", int, 10000, "The steps interval to save checkpoints.") train_g.add_arg("validation_steps", int, 1000, "The steps interval to evaluate model performance.") train_g.add_arg("lr", float, 0.002, "The Learning rate value for training.") log_g = ArgumentGroup(parser, "logging", "logging related") log_g.add_arg("skip_steps", int, 10, "The steps interval to print loss.") log_g.add_arg("verbose", bool, False, "Whether to output verbose log") data_g = ArgumentGroup(parser, "data", "Data paths, vocab paths and data processing options") data_g.add_arg("data_dir", str, None, "Path to training data.") data_g.add_arg("vocab_path", str, None, "Vocabulary path.") data_g.add_arg("batch_size", int, 256, "Total examples' number in batch for training.") data_g.add_arg("random_seed", int, 0, "Random seed.") run_type_g = ArgumentGroup(parser, "run_type", "running type options.") run_type_g.add_arg("use_cuda", bool, True, "If set, use GPU for training.") run_type_g.add_arg("task_name", str, None, "The name of task to perform sentiment classification.") run_type_g.add_arg("do_train", bool, True, "Whether to perform training.") run_type_g.add_arg("do_val", bool, True, "Whether to perform evaluation.") run_type_g.add_arg("do_infer", bool, True, "Whether to perform inference.") parser.add_argument('--enable_ce', action='store_true', help='If set, run the task with continuous evaluation logs.') args = parser.parse_args() # yapf: enable. def create_model(args, pyreader_name, senta_config, num_labels, is_inference=False): """ Create Model for sentiment classification """ pyreader = fluid.layers.py_reader( capacity=16, shapes=([-1, 1], [-1, 1]), dtypes=('int64', 'int64'), lod_levels=(1, 0), name=pyreader_name, use_double_buffer=False) if senta_config['model_type'] == "bilstm_net": network = bilstm_net elif senta_config['model_type'] == "bow_net": network = bow_net elif senta_config['model_type'] == "cnn_net": network = cnn_net elif senta_config['model_type'] == "lstm_net": network = lstm_net elif senta_config['model_type'] == "gru_net": network = gru_net else: raise ValueError("Unknown network type!") if is_inference: data, label = fluid.layers.read_file(pyreader) probs = network(data, None, senta_config["vocab_size"], is_infer=is_inference) print("create inference model...") return pyreader, probs data, label = fluid.layers.read_file(pyreader) ce_loss, probs = network(data, label, senta_config["vocab_size"], is_infer=is_inference) loss = fluid.layers.mean(x=ce_loss) num_seqs = fluid.layers.create_tensor(dtype='int64') accuracy = fluid.layers.accuracy(input=probs, label=label, total=num_seqs) return pyreader, loss, accuracy, num_seqs def evaluate(exe, test_program, test_pyreader, fetch_list, eval_phase): """ Evaluation Function """ test_pyreader.start() total_cost, total_acc, total_num_seqs = [], [], [] time_begin = time.time() while True: try: np_loss, np_acc, np_num_seqs = exe.run(program=test_program, fetch_list=fetch_list, return_numpy=False) np_loss = np.array(np_loss) np_acc = np.array(np_acc) np_num_seqs = np.array(np_num_seqs) total_cost.extend(np_loss * np_num_seqs) total_acc.extend(np_acc * np_num_seqs) total_num_seqs.extend(np_num_seqs) except fluid.core.EOFException: test_pyreader.reset() break time_end = time.time() print("[%s evaluation] ave loss: %f, ave acc: %f, elapsed time: %f s" % (eval_phase, np.sum(total_cost) / np.sum(total_num_seqs), np.sum(total_acc) / np.sum(total_num_seqs), time_end - time_begin)) def inference(exe, test_program, test_pyreader, fetch_list, infer_phrase): """ Inference Function """ test_pyreader.start() time_begin = time.time() while True: try: np_props = exe.run(program=test_program, fetch_list=fetch_list, return_numpy=True) for probs in np_props[0]: print("%d\t%f\t%f" % (np.argmax(probs), probs[0], probs[1])) except fluid.core.EOFException: test_pyreader.reset() break time_end = time.time() print("[%s] elapsed time: %f s" % (infer_phrase, time_end - time_begin)) def main(args): """ Main Function """ senta_config = SentaConfig(args.senta_config_path) if args.use_cuda: place = fluid.CUDAPlace(int(os.getenv('FLAGS_selected_gpus', '0'))) dev_count = fluid.core.get_cuda_device_count() else: place = fluid.CPUPlace() dev_count = 1 exe = fluid.Executor(place) task_name = args.task_name.lower() processor = reader.SentaProcessor(data_dir=args.data_dir, vocab_path=args.vocab_path, random_seed=args.random_seed) num_labels = len(processor.get_labels()) if not (args.do_train or args.do_val or args.do_infer): raise ValueError("For args `do_train`, `do_val` and `do_infer`, at " "least one of them must be True.") startup_prog = fluid.Program() if args.random_seed is not None: startup_prog.random_seed = args.random_seed if args.do_train: train_data_generator = processor.data_generator( batch_size=args.batch_size, phase='train', epoch=args.epoch, shuffle=True) num_train_examples = processor.get_num_examples(phase="train") max_train_steps = args.epoch * num_train_examples // args.batch_size // dev_count print("Device count: %d" % dev_count) print("Num train examples: %d" % num_train_examples) print("Max train steps: %d" % max_train_steps) train_program = fluid.Program() if args.enable_ce and args.random_seed is not None: train_program.random_seed = args.random_seed with fluid.program_guard(train_program, startup_prog): with fluid.unique_name.guard(): train_pyreader, loss, accuracy, num_seqs = create_model( args, pyreader_name='train_reader', senta_config=senta_config, num_labels=num_labels, is_inference=False) sgd_optimizer = fluid.optimizer.Adagrad(learning_rate=args.lr) sgd_optimizer.minimize(loss) if args.verbose: lower_mem, upper_mem, unit = fluid.contrib.memory_usage( program=train_program, batch_size=args.batch_size) print("Theoretical memory usage in training: %.3f - %.3f %s" % (lower_mem, upper_mem, unit)) if args.do_val: test_prog = fluid.Program() with fluid.program_guard(test_prog, startup_prog): with fluid.unique_name.guard(): test_pyreader, loss, accuracy, num_seqs = create_model( args, pyreader_name='test_reader', senta_config=senta_config, num_labels=num_labels, is_inference=False) test_prog = test_prog.clone(for_test=True) if args.do_infer: infer_prog = fluid.Program() with fluid.program_guard(infer_prog, startup_prog): with fluid.unique_name.guard(): infer_pyreader, prop = create_model( args, pyreader_name='infer_reader', senta_config=senta_config, num_labels=num_labels, is_inference=True) infer_prog = infer_prog.clone(for_test=True) exe.run(startup_prog) if args.do_train: if args.init_checkpoint: init_checkpoint( exe, args.init_checkpoint, main_program=startup_prog) elif args.do_val or args.do_infer: if not args.init_checkpoint: raise ValueError("args 'init_checkpoint' should be set if" "only doing validation or testing!") init_checkpoint( exe, args.init_checkpoint, main_program=startup_prog) if args.do_train: train_exe = exe train_pyreader.decorate_paddle_reader(train_data_generator) else: train_exe = None if args.do_val or args.do_infer: test_exe = exe if args.do_train: train_pyreader.start() steps = 0 total_cost, total_acc, total_num_seqs = [], [], [] time_begin = time.time() while True: try: steps += 1 #print("steps...") if steps % args.skip_steps == 0: fetch_list = [loss.name, accuracy.name, num_seqs.name] else: fetch_list = [] outputs = train_exe.run(program=train_program, fetch_list=fetch_list, return_numpy=False) #print("finished one step") if steps % args.skip_steps == 0: np_loss, np_acc, np_num_seqs = outputs np_loss = np.array(np_loss) np_acc = np.array(np_acc) np_num_seqs = np.array(np_num_seqs) total_cost.extend(np_loss * np_num_seqs) total_acc.extend(np_acc * np_num_seqs) total_num_seqs.extend(np_num_seqs) if args.verbose: verbose = "train pyreader queue size: %d, " % train_pyreader.queue.size() print(verbose) time_end = time.time() used_time = time_end - time_begin print("step: %d, ave loss: %f, " "ave acc: %f, speed: %f steps/s" % (steps, np.sum(total_cost) / np.sum(total_num_seqs), np.sum(total_acc) / np.sum(total_num_seqs), args.skip_steps / used_time)) total_cost, total_acc, total_num_seqs = [], [], [] time_begin = time.time() if steps % args.save_steps == 0: save_path = os.path.join(args.checkpoints, "step_" + str(steps)) fluid.io.save_persistables(exe, save_path, train_program) if steps % args.validation_steps == 0: # evaluate dev set if args.do_val: print("do evalatation") test_pyreader.decorate_paddle_reader( processor.data_generator( batch_size=args.batch_size, phase='dev', epoch=1, shuffle=False)) evaluate(exe, test_prog, test_pyreader, [loss.name, accuracy.name, num_seqs.name], "dev") except fluid.core.EOFException: save_path = os.path.join(args.checkpoints, "step_" + str(steps)) fluid.io.save_persistables(exe, save_path, train_program) train_pyreader.reset() break # final eval on dev set if args.do_val: test_pyreader.decorate_paddle_reader( processor.data_generator( batch_size=args.batch_size, phase='dev', epoch=1, shuffle=False)) print("Final validation result:") evaluate(exe, test_prog, test_pyreader, [loss.name, accuracy.name, num_seqs.name], "dev") test_pyreader.decorate_paddle_reader( processor.data_generator( batch_size=args.batch_size, phase='infer', epoch=1, shuffle=False)) evaluate(exe, test_prog, test_pyreader, [loss.name, accuracy.name, num_seqs.name], "infer") # final eval on test set if args.do_infer: infer_pyreader.decorate_paddle_reader( processor.data_generator( batch_size=args.batch_size, phase='infer', epoch=1, shuffle=False)) print("Final test result:") inference(exe, infer_prog, infer_pyreader, [prop.name], "infer") if __name__ == "__main__": print_arguments(args) check_cuda(args.use_cuda) main(args)