Пример #1
0
    logger.info(open(args.config).read())
    parse_config(args.config)

    model = VideoCompressor()
    if args.pretrain != '':
        print("loading pretrain : ", args.pretrain)
        global_step = load_model(model, args.pretrain)
    net = model.cuda()
    net = torch.nn.DataParallel(net, list(range(gpu_num)))
    bp_parameters = net.parameters()
    optimizer = optim.Adam(bp_parameters, lr=base_lr)
    # save_model(model, 0)
    global train_dataset, test_dataset
    if args.testuvg:
        test_dataset = UVGDataSet(refdir=ref_i_dir, testfull=True)
        print('testing UVG')
        testuvg(0, testfull=True)
        exit(0)

    tb_logger = SummaryWriter('./events')
    train_dataset = DataSet("data/vimeo_septuplet/test.txt")
    # test_dataset = UVGDataSet(refdir=ref_i_dir)
    stepoch = global_step // (train_dataset.__len__() // (gpu_per_batch))# * gpu_num))
    for epoch in range(stepoch, tot_epoch):
        adjust_learning_rate(optimizer, global_step)
        if global_step > tot_step:
            save_model(model, global_step)
            break
        global_step = train(epoch, global_step)
        save_model(model, global_step)
Пример #2
0
def main():
    opts = get_train_args()
    print("load data ...")
    data = DataSet('data/modified_triples.txt')
    dataloader = DataLoader(data, shuffle=True, batch_size=opts.batch_size)
    print("load model ...")
    if opts.model_type == 'transe':
        model = TransE(opts, data.ent_tot, data.rel_tot)
    elif opts.model_type == "distmult":
        model = DistMult(opts, data.ent_tot, data.rel_tot)
    if opts.optimizer == 'Adam':
        optimizer = optim.Adam(model.parameters(), lr=opts.lr)
    elif opts.optimizer == 'SGD':
        optimizer = optim.SGD(model.parameters(), lr=opts.lr)
    model.cuda()
    model.relation_normalize()
    loss = torch.nn.MarginRankingLoss(margin=opts.margin)

    print("start training")
    for epoch in range(1, opts.epochs + 1):
        print("epoch : " + str(epoch))
        model.train()
        epoch_start = time.time()
        epoch_loss = 0
        tot = 0
        cnt = 0
        for i, batch_data in enumerate(dataloader):
            optimizer.zero_grad()
            batch_h, batch_r, batch_t, batch_n = batch_data
            batch_h = torch.LongTensor(batch_h).cuda()
            batch_r = torch.LongTensor(batch_r).cuda()
            batch_t = torch.LongTensor(batch_t).cuda()
            batch_n = torch.LongTensor(batch_n).cuda()
            pos_score, neg_score, dist = model.forward(batch_h, batch_r,
                                                       batch_t, batch_n)
            pos_score = pos_score.cpu()
            neg_score = neg_score.cpu()
            dist = dist.cpu()
            train_loss = loss(pos_score, neg_score,
                              torch.ones(pos_score.size(-1))) + dist
            train_loss.backward()
            optimizer.step()
            batch_loss = torch.sum(train_loss)
            epoch_loss += batch_loss
            batch_size = batch_h.size(0)
            tot += batch_size
            cnt += 1
            print('\r{:>10} epoch {} progress {} loss: {}\n'.format(
                '', epoch, tot / data.__len__(), train_loss),
                  end='')
        end = time.time()
        time_used = end - epoch_start
        epoch_loss /= cnt
        print('one epoch time: {} minutes'.format(time_used / 60))
        print('{} epochs'.format(epoch))
        print('epoch {} loss: {}'.format(epoch, epoch_loss))

        if epoch % opts.save_step == 0:
            print("save model...")
            model.entity_normalize()
            torch.save(model.state_dict(), 'model.pt')

    print("save model...")
    model.entity_normalize()
    torch.save(model.state_dict(), 'model.pt')
    print("[Saving embeddings of whole entities & relations...]")
    save_embeddings(model, opts, data.id2ent, data.id2rel)
    print("[Embedding results are saved successfully.]")