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exp.py
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exp.py
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# coding=utf-8
from __future__ import print_function
import argparse
from itertools import chain
import six.moves.cPickle as pickle
from six.moves import xrange as range
from six.moves import input
import traceback
import numpy as np
import time
import os
import sys
import collections
import queue
import torch
from torch.autograd import Variable
import evaluation
from asdl.asdl import ASDLGrammar
from asdl.transition_system import TransitionSystem
from components.dataset import Dataset, Example
from components.reranker import *
from components.standalone_parser import StandaloneParser
from common.utils import update_args, init_arg_parser
from datasets import *
from model import nn_utils, utils
from model.neural_lm import LSTMLanguageModel
from model.paraphrase import ParaphraseIdentificationModel
from model.parser import Parser
from model.parser_RL import ParserRL
from model.parser_pre import ParserPre
from model.prior import UniformPrior, LSTMPrior
from model.reconstruction_model import Reconstructor
from model.struct_vae import StructVAE, StructVAE_LMBaseline, StructVAE_SrcLmAndLinearBaseline
from model.utils import GloveHelper, get_parser_class
import os
os.environ["CUDA_VISIBLE_DEVICES"] = "0"
if six.PY3:
# import additional packages for wikisql dataset (works only under Python 3)
from model.wikisql.dataset import WikiSqlExample, WikiSqlTable, TableColumn
from model.wikisql.parser import WikiSqlParser
from datasets.wikisql.dataset import Query, DBEngine
def init_config():
args = arg_parser.parse_args()
# seed the RNG
torch.manual_seed(args.seed)
if args.cuda:
torch.cuda.manual_seed(args.seed)
np.random.seed(int(args.seed * 13 / 7))
return args
def train_rl(args):
"""Maximum Likelihood Estimation"""
# load in train/dev set
train_set = Dataset.from_bin_file(args.train_file)
if args.dev_file:
dev_set = Dataset.from_bin_file(args.dev_file)
else: dev_set = Dataset(examples=[])
vocab = pickle.load(open(args.vocab, 'rb'))
load_pre_model = True
if load_pre_model:
params1 = torch.load(args.load_model, map_location=lambda storage, loc: storage)
vocab = params1['vocab']
grammar = ASDLGrammar.from_text(open(args.asdl_file).read())
transition_system = Registrable.by_name(args.transition_system)(grammar)
parser_cls = Registrable.by_name(args.parser) # TODO: add arg
model = parser_cls(args, vocab, transition_system)
model.train()
evaluator = Registrable.by_name(args.evaluator)(transition_system, args=args)
if args.cuda: model.cuda()
optimizer_cls = eval('torch.optim.%s' % args.optimizer) # FIXME: this is evil!
optimizer = optimizer_cls([{'params':( v for k, v in model.named_parameters() if 'branch_selector' not in k), 'weight_decay':0},
{'params':( v for k, v in model.named_parameters() if 'branch_selector' in k), 'weight_decay':args.weight_decay}],
lr=args.lr)
if args.uniform_init:
print('uniformly initialize parameters [-%f, +%f]' % (args.uniform_init, args.uniform_init), file=sys.stderr)
nn_utils.uniform_init(-args.uniform_init, args.uniform_init, model.parameters())
elif args.glorot_init:
print('use glorot initialization', file=sys.stderr)
nn_utils.glorot_init(model.parameters())
# load pre-trained word embedding (optional)
if args.glove_embed_path:
print('load glove embedding from: %s' % args.glove_embed_path, file=sys.stderr)
glove_embedding = GloveHelper(args.glove_embed_path)
glove_embedding.load_to(model.src_embed, vocab.source)
print('begin training, %d training examples, %d dev examples' % (len(train_set), len(dev_set)), file=sys.stderr)
print('vocab: %s' % repr(vocab), file=sys.stderr)
if load_pre_model:
print('load model from [%s]' % args.load_model, file=sys.stderr)
saved_state1 = params1['state_dict']
saved_state1 = {k: v for k, v in saved_state1.items() if 'branch_selector' not in k}
model.load_state_dict(saved_state1,strict=False)
model.train()
epoch = train_iter = 0
report_loss = report_examples = report_rl_loss = 0.
history_dev_scores = []
num_trial = patience = 0
RL = True
eps= args.epsilon
while True:
epoch += 1
epoch_begin = time.time()
for batch_examples in train_set.batch_iter(batch_size=args.batch_size, shuffle=True):
batch_examples = [e for e in batch_examples if len(e.tgt_actions) <= args.decode_max_time_step]
train_iter += 1
optimizer.zero_grad()
ret_val = model.score(batch_examples, epsilon=eps)
loss = -ret_val[0]
loss_val = torch.sum(loss).data.item()
report_loss += loss_val
report_examples += len(batch_examples)
loss = torch.mean(loss)
if RL:
rl_loss = torch.mean(-ret_val[1])
rl_loss_val = rl_loss.data.item()
report_rl_loss += rl_loss_val
loss += rl_loss
loss.backward()
# clip gradient
if args.clip_grad > 0.:
grad_norm = torch.nn.utils.clip_grad_norm(model.parameters(), args.clip_grad)
optimizer.step()
if train_iter % args.log_every == 0:
log_str = '[Iter %d] encoder loss=%.5f' % (train_iter, report_loss / report_examples)
if RL:
log_str += ' rl_loss=%.5f' % (report_rl_loss / report_examples)
report_rl_loss = 0.
print(log_str, file=sys.stderr)
report_loss = report_examples = 0.
print('[Epoch %d] epoch elapsed %ds' % (epoch, time.time() - epoch_begin), file=sys.stderr)
if args.save_all_models:
model_file = args.save_to + '.iter%d.bin' % train_iter
print('save model to [%s]' % model_file, file=sys.stderr)
model.save(model_file)
# perform validation
is_better = True
if args.dev_file:
if epoch % args.valid_every_epoch == 0:
print('[Epoch %d] begin validation' % epoch, file=sys.stderr)
eval_start = time.time()
eval_results = evaluation.evaluate(dev_set.examples, model, evaluator, args,
verbose=True, eval_top_pred_only=args.eval_top_pred_only)
dev_score = eval_results[evaluator.default_metric]
print('[Epoch %d] evaluate details: %s, dev %s: %.5f (took %ds)' % (
epoch, eval_results,
evaluator.default_metric,
dev_score,
time.time() - eval_start), file=sys.stderr)
is_better = history_dev_scores == [] or dev_score > max(history_dev_scores)
history_dev_scores.append(dev_score)
else:
is_better = True
if args.decay_lr_every_epoch and epoch > args.lr_decay_after_epoch:
lr = optimizer.param_groups[0]['lr'] * args.lr_decay
print('decay learning rate to %f' % lr, file=sys.stderr)
# set new lr
for param_group in optimizer.param_groups:
param_group['lr'] = lr
eps = eps * args.lr_decay
if is_better:
patience = 0
model_file = args.save_to + '.bin'
print('save the current model ..', file=sys.stderr)
print('save model to [%s]' % model_file, file=sys.stderr)
model.save(model_file)
# also save the optimizers' state
torch.save(optimizer.state_dict(), args.save_to + '.optim.bin')
elif patience < args.patience and epoch >= args.lr_decay_after_epoch:
patience += 1
print('hit patience %d' % patience, file=sys.stderr)
if epoch == args.max_epoch:
print('reached max epoch, stop!', file=sys.stderr)
exit(0)
if patience >= args.patience and epoch >= args.lr_decay_after_epoch:
num_trial += 1
print('hit #%d trial' % num_trial, file=sys.stderr)
if num_trial == args.max_num_trial:
print('early stop!', file=sys.stderr)
exit(0)
# decay lr, and restore from previously best checkpoint
lr = optimizer.param_groups[0]['lr'] * args.lr_decay
print('load previously best model and decay learning rate to %f' % lr, file=sys.stderr)
# load model
params = torch.load(args.save_to + '.bin', map_location=lambda storage, loc: storage)
model.load_state_dict(params['state_dict'])
if args.cuda: model = model.cuda()
# load optimizers
if args.reset_optimizer:
print('reset optimizer', file=sys.stderr)
optimizer = torch.optim.Adam(model.parameters(), lr=lr)
else:
print('restore parameters of the optimizers', file=sys.stderr)
optimizer.load_state_dict(torch.load(args.save_to + '.optim.bin'))
# set new lr
for param_group in optimizer.param_groups:
param_group['lr'] = lr
eps = eps * 0.5
# reset patience
patience = 0
def ori_train(args):
"""Maximum Likelihood Estimation"""
# load in train/dev set
train_set = Dataset.from_bin_file(args.train_file)
if args.dev_file:
dev_set = Dataset.from_bin_file(args.dev_file)
else: dev_set = Dataset(examples=[])
vocab = pickle.load(open(args.vocab, 'rb'))
grammar = ASDLGrammar.from_text(open(args.asdl_file).read())
transition_system = Registrable.by_name(args.transition_system)(grammar)
parser_cls = Registrable.by_name(args.parser) # TODO: add arg
model = parser_cls(args, vocab, transition_system)
model.train()
evaluator = Registrable.by_name(args.evaluator)(transition_system, args=args)
if args.cuda: model.cuda()
optimizer_cls = eval('torch.optim.%s' % args.optimizer) # FIXME: this is evil!
optimizer = optimizer_cls(model.parameters(), lr=args.lr)
if args.uniform_init:
print('uniformly initialize parameters [-%f, +%f]' % (args.uniform_init, args.uniform_init), file=sys.stderr)
nn_utils.uniform_init(-args.uniform_init, args.uniform_init, model.parameters())
elif args.glorot_init:
print('use glorot initialization', file=sys.stderr)
nn_utils.glorot_init(model.parameters())
# load pre-trained word embedding (optional)
if args.glove_embed_path:
print('load glove embedding from: %s' % args.glove_embed_path, file=sys.stderr)
glove_embedding = GloveHelper(args.glove_embed_path)
glove_embedding.load_to(model.src_embed, vocab.source)
print('begin training, %d training examples, %d dev examples' % (len(train_set), len(dev_set)), file=sys.stderr)
print('vocab: %s' % repr(vocab), file=sys.stderr)
if args.load_model:
params1 = torch.load(args.load_model, map_location=lambda storage, loc: storage)
vocab = params1['vocab']
print('load model from [%s]' % args.load_model, file=sys.stderr)
saved_state1 = params1['state_dict']
model.load_state_dict(saved_state1,strict=False)
model.train()
epoch = train_iter = 0
report_loss = report_examples = report_rl_loss = 0.
history_dev_scores = []
num_trial = patience = 0
while True:
epoch += 1
epoch_begin = time.time()
for batch_examples in train_set.batch_iter(batch_size=args.batch_size, shuffle=True):
batch_examples = [e for e in batch_examples if len(e.tgt_actions) <= args.decode_max_time_step]
train_iter += 1
optimizer.zero_grad()
ret_val = model.score(batch_examples)
loss = -ret_val[0]
# print(loss.data)
loss_val = torch.sum(loss).data.item()
report_loss += loss_val
report_examples += len(batch_examples)
loss = torch.mean(loss)
loss.backward()
# clip gradient
if args.clip_grad > 0.:
grad_norm = torch.nn.utils.clip_grad_norm(model.parameters(), args.clip_grad)
optimizer.step()
if train_iter % args.log_every == 0:
log_str = '[Iter %d] encoder loss=%.5f' % (train_iter, report_loss / report_examples)
print(log_str, file=sys.stderr)
report_loss = report_examples = 0.
print('[Epoch %d] epoch elapsed %ds' % (epoch, time.time() - epoch_begin), file=sys.stderr)
if args.save_all_models:
model_file = args.save_to + '.iter%d.bin' % train_iter
print('save model to [%s]' % model_file, file=sys.stderr)
model.save(model_file)
# perform validation
if args.dev_file:
if epoch % args.valid_every_epoch == 0:
print('[Epoch %d] begin validation' % epoch, file=sys.stderr)
eval_start = time.time()
eval_results = evaluation.evaluate(dev_set.examples, model, evaluator, args,
verbose=True, eval_top_pred_only=args.eval_top_pred_only)
dev_score = eval_results[evaluator.default_metric]
print('[Epoch %d] evaluate details: %s, dev %s: %.5f (took %ds)' % (
epoch, eval_results,
evaluator.default_metric,
dev_score,
time.time() - eval_start), file=sys.stderr)
is_better = history_dev_scores == [] or dev_score > max(history_dev_scores)
history_dev_scores.append(dev_score)
else:
is_better = True
#is_better = True
if args.decay_lr_every_epoch and epoch > args.lr_decay_after_epoch:
lr = optimizer.param_groups[0]['lr'] * args.lr_decay
print('decay learning rate to %f' % lr, file=sys.stderr)
# set new lr
for param_group in optimizer.param_groups:
param_group['lr'] = lr
if is_better:
patience = 0
model_file = args.save_to + '.bin'
print('save the current model ..', file=sys.stderr)
print('save model to [%s]' % model_file, file=sys.stderr)
model.save(model_file)
# also save the optimizers' state
torch.save(optimizer.state_dict(), args.save_to + '.optim.bin')
elif patience < args.patience and epoch >= args.lr_decay_after_epoch:
patience += 1
print('hit patience %d' % patience, file=sys.stderr)
if epoch == args.max_epoch:
print('reached max epoch, stop!', file=sys.stderr)
exit(0)
if patience >= args.patience and epoch >= args.lr_decay_after_epoch:
num_trial += 1
print('hit #%d trial' % num_trial, file=sys.stderr)
if num_trial == args.max_num_trial:
print('early stop!', file=sys.stderr)
exit(0)
# decay lr, and restore from previously best checkpoint
lr = optimizer.param_groups[0]['lr'] * args.lr_decay
print('load previously best model and decay learning rate to %f' % lr, file=sys.stderr)
# load model
params = torch.load(args.save_to + '.bin', map_location=lambda storage, loc: storage)
model.load_state_dict(params['state_dict'])
if args.cuda: model = model.cuda()
# load optimizers
if args.reset_optimizer:
print('reset optimizer', file=sys.stderr)
optimizer = torch.optim.Adam(model.parameters(), lr=lr)
else:
print('restore parameters of the optimizers', file=sys.stderr)
optimizer.load_state_dict(torch.load(args.save_to + '.optim.bin'))
# set new lr
for param_group in optimizer.param_groups:
param_group['lr'] = lr
# reset patience
patience = 0
def test(args):
test_set = Dataset.from_bin_file(args.test_file)
assert args.load_model
print('load model from [%s]' % args.load_model, file=sys.stderr)
params = torch.load(args.load_model, map_location=lambda storage, loc: storage)
transition_system = params['transition_system']
saved_args = params['args']
saved_args.cuda = args.cuda
# set the correct domain from saved arg
args.lang = saved_args.lang
parser_cls = Registrable.by_name(args.parser)
parser = parser_cls.load(model_path=args.load_model, cuda=args.cuda)
parser.eval()
evaluator = Registrable.by_name(args.evaluator)(transition_system, args=args)
eval_results, decode_results = evaluation.evaluate(test_set.examples, parser, evaluator, args,
verbose=args.verbose, return_decode_result=True)
print(eval_results, file=sys.stderr)
if args.save_decode_to:
pickle.dump(decode_results, open(args.save_decode_to, 'wb'))
def pretrain(args):
# load in train/dev set
train_set = Dataset.from_bin_file(args.train_file)
if args.dev_file:
dev_set = Dataset.from_bin_file(args.dev_file)
else: dev_set = Dataset(examples=[])
vocab = pickle.load(open(args.vocab, 'rb'))
grammar = ASDLGrammar.from_text(open(args.asdl_file).read())
transition_system = Registrable.by_name(args.transition_system)(grammar)
parser_cls = Registrable.by_name('parser_pre') # TODO: add arg
model = parser_cls(args, vocab, transition_system)
model.train()
evaluator = Registrable.by_name(args.evaluator)(transition_system, args=args)
if args.cuda: model.cuda()
optimizer_cls = eval('torch.optim.%s' % args.optimizer) # FIXME: this is evil!
optimizer = optimizer_cls(model.parameters(), lr=args.lr)
if args.uniform_init:
print('uniformly initialize parameters [-%f, +%f]' % (args.uniform_init, args.uniform_init), file=sys.stderr)
nn_utils.uniform_init(-args.uniform_init, args.uniform_init, model.parameters())
elif args.glorot_init:
print('use glorot initialization', file=sys.stderr)
nn_utils.glorot_init(model.parameters())
# load pre-trained word embedding (optional)
if args.glove_embed_path:
print('load glove embedding from: %s' % args.glove_embed_path, file=sys.stderr)
glove_embedding = GloveHelper(args.glove_embed_path)
glove_embedding.load_to(model.src_embed, vocab.source)
print('begin training, %d training examples, %d dev examples' % (len(train_set), len(dev_set)), file=sys.stderr)
print('vocab: %s' % repr(vocab), file=sys.stderr)
model.train()
epoch = train_iter = 0
report_loss = report_examples = report_rl_loss = 0.
history_dev_scores = []
num_trial = patience = 0
while True:
epoch += 1
epoch_begin = time.time()
for batch_examples in train_set.batch_iter(batch_size=args.batch_size, shuffle=True):
batch_examples = [e for e in batch_examples if len(e.tgt_actions) <= args.decode_max_time_step]
train_iter += 1
optimizer.zero_grad()
ret_val = model.score(batch_examples, epsilon=1.0)
loss = -ret_val[0]
# print(loss.data)
loss_val = torch.sum(loss).data.item()
report_loss += loss_val
report_examples += len(batch_examples)
loss = torch.mean(loss)
loss.backward()
# clip gradient
if args.clip_grad > 0.:
grad_norm = torch.nn.utils.clip_grad_norm(model.parameters(), args.clip_grad)
optimizer.step()
if train_iter % args.log_every == 0:
log_str = '[Iter %d] encoder loss=%.5f' % (train_iter, report_loss / report_examples)
print(log_str, file=sys.stderr)
report_loss = report_examples = 0.
print('[Epoch %d] epoch elapsed %ds' % (epoch, time.time() - epoch_begin), file=sys.stderr)
# perform validation
if args.dev_file:
if epoch % args.valid_every_epoch == 0:
print('[Epoch %d] begin validation' % epoch, file=sys.stderr)
eval_start = time.time()
eval_results = evaluation.evaluate(dev_set.examples, model, evaluator, args,
verbose=True, eval_top_pred_only=args.eval_top_pred_only)
dev_score = eval_results[evaluator.default_metric]
print('[Epoch %d] evaluate details: %s, dev %s: %.5f (took %ds)' % (
epoch, eval_results,
evaluator.default_metric,
dev_score,
time.time() - eval_start), file=sys.stderr)
is_better = history_dev_scores == [] or dev_score > max(history_dev_scores)
history_dev_scores.append(dev_score)
else:
is_better = True
if args.decay_lr_every_epoch and epoch > args.lr_decay_after_epoch:
lr = optimizer.param_groups[0]['lr'] * args.lr_decay
print('decay learning rate to %f' % lr, file=sys.stderr)
# set new lr
for param_group in optimizer.param_groups:
param_group['lr'] = lr
if args.save_all_models:
model_file = args.save_to + '.iter%d.bin' % train_iter
print('save model to [%s]' % model_file, file=sys.stderr)
model.save(model_file)
if is_better:
patience = 0
model_file = args.save_to + '.bin'
print('save the current model ..', file=sys.stderr)
print('save model to [%s]' % model_file, file=sys.stderr)
model.save(model_file)
# also save the optimizers' state
torch.save(optimizer.state_dict(), args.save_to + '.optim.bin')
elif patience < args.patience and epoch >= args.lr_decay_after_epoch:
patience += 1
print('hit patience %d' % patience, file=sys.stderr)
if epoch == args.max_epoch:
print('reached max epoch, stop!', file=sys.stderr)
exit(0)
if patience >= args.patience and epoch >= args.lr_decay_after_epoch:
num_trial += 1
print('hit #%d trial' % num_trial, file=sys.stderr)
if num_trial == args.max_num_trial:
print('early stop!', file=sys.stderr)
exit(0)
# decay lr, and restore from previously best checkpoint
lr = optimizer.param_groups[0]['lr'] * args.lr_decay
print('load previously best model and decay learning rate to %f' % lr, file=sys.stderr)
# load model
params = torch.load(args.save_to + '.bin', map_location=lambda storage, loc: storage)
model.load_state_dict(params['state_dict'])
if args.cuda: model = model.cuda()
# load optimizers
if args.reset_optimizer:
print('reset optimizer', file=sys.stderr)
optimizer = torch.optim.Adam(model.parameters(), lr=lr)
else:
print('restore parameters of the optimizers', file=sys.stderr)
optimizer.load_state_dict(torch.load(args.save_to + '.optim.bin'))
# set new lr
for param_group in optimizer.param_groups:
param_group['lr'] = lr
# reset patience
patience = 0
if __name__ == '__main__':
arg_parser = init_arg_parser()
args = init_config()
print(args, file=sys.stderr)
if args.mode == 'train_rl':
train_rl(args)
if args.mode == 'train':
ori_train(args)
elif args.mode == 'pretrain':
pretrain(args)
elif args.mode == 'print_order':
print_order(args)
elif args.mode == 'test':
test(args)
else:
raise RuntimeError('unknown mode')