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Go to the end to download the full example code
RotatE-WN18RR-single-gpu-adv || RotatE-WN18RR-single-gpu-adv-wandb || RotatE-WN18RR-single-gpu-adv-hpo
RotatE-WN18RR-single-gpu-adv¶
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created by LuYF-Lemon-love <luyanfeng_nlp@qq.com> on May 7, 2023
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updated by LuYF-Lemon-love <luyanfeng_nlp@qq.com> on May 15, 2024
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last run by LuYF-Lemon-love <luyanfeng_nlp@qq.com> on May 15, 2024
这一部分介绍如何用一个 GPU 在 WN18RR 知识图谱上训练 RotatE [SDNT19]。
导入数据¶
UniKE 有 1 个工具用于导入数据: unike.data.KGEDataLoader。
import os
from unike.data import KGEDataLoader, UniSampler, TradTestSampler
from unike.module.model import RotatE
from unike.module.loss import SigmoidLoss
from unike.module.strategy import NegativeSampling
from unike.config import Trainer, Tester
UniKE 提供了很多数据集,它们很多都是 KGE 原论文发表时附带的数据集。
unike.data.KGEDataLoader 包含 in_path 用于传递数据集目录。
# dataloader for training
dataloader = KGEDataLoader(
in_path = os.path.join(os.path.dirname(__file__), '../../benchmarks/WN18RR/'),
batch_size = 2000,
neg_ent = 64,
test = True,
test_batch_size = 10,
num_workers = 16,
train_sampler = UniSampler,
test_sampler = TradTestSampler
)
导入模型¶
UniKE 提供了很多 KGE 模型,它们都是目前最常用的基线模型。我们下面将要导入
unike.module.model.RotatE,它将实体表示成复数向量,关系建模为复数向量空间的旋转。
# define the model
rotate = RotatE(
ent_tol = dataloader.get_ent_tol(),
rel_tol = dataloader.get_rel_tol(),
dim = 1024,
margin = 6.0,
epsilon = 2.0,
)
损失函数¶
我们这里使用了逻辑损失函数:unike.module.loss.SigmoidLoss,
unike.module.strategy.NegativeSampling 对
unike.module.loss.SigmoidLoss 进行了封装,加入权重衰减等额外项。
# define the loss function
model = NegativeSampling(
model = rotate,
loss = SigmoidLoss(adv_temperature = 2),
regul_rate = 0.0,
)
训练模型¶
UniKE 将训练循环包装成了 unike.config.Trainer,
可以运行它的 unike.config.Trainer.run() 函数进行模型学习;
也可以通过传入 unike.config.Tester,
使得训练器能够在训练过程中评估模型。
# test the model
tester = Tester(model = rotate, data_loader = dataloader, use_tqdm = False,
use_gpu = True, device = 'cuda:1')
# train the model
trainer = Trainer(model = model, data_loader = dataloader.train_dataloader(), epochs = 6000,
lr = 2e-5, opt_method = 'adam', use_gpu = True, device = 'cuda:1',
tester = tester, test = True, valid_interval = 100,
log_interval = 100, save_interval = 100,
save_path = '../../checkpoint/rotate.pth', use_wandb = False)
trainer.run()
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上述代码的运行日志可以从 此处 下载。
Total running time of the script: ( 0 minutes 0.000 seconds)