unmeshvrije / OpenKE

An Open-Source Package for Knowledge Embedding (KE)
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OpenKE-PyTorch

An Open-source Framework for Knowledge Embedding implemented with PyTorch.

More information is available on our website http://openke.thunlp.org/

If you use the code, please cite the following paper:

 @inproceedings{han2018openke,
   title={OpenKE: An Open Toolkit for Knowledge Embedding},
   author={Han, Xu and Cao, Shulin and Lv Xin and Lin, Yankai and Liu, Zhiyuan and Sun, Maosong and Li, Juanzi},
   booktitle={Proceedings of EMNLP},
   year={2018}
 }

This package is mainly contributed (in chronological order) by Xu Han, Yankai Lin, Ruobing Xie, Zhiyuan Liu, Xin Lv, Shulin Cao, Weize Chen, Jingqin Yang.

Overview

This is an Efficient implementation based on PyTorch for knowledge representation learning (KRL). We use C++ to implement some underlying operations such as data preprocessing and negative sampling. For each specific model, it is implemented by PyTorch with Python interfaces so that there is a convenient platform to run models on GPUs. OpenKE composes 4 repositories:

OpenKE-PyTorch: the project based on PyTorch, which provides the optimized and stable framework for knowledge graph embedding models.

OpenKE-Tensorflow1.0: OpenKE implemented with TensorFlow, also providing the optimized and stable framework for knowledge graph embedding models.

TensorFlow-TransX: light and simple version of OpenKE based on TensorFlow, including TransE, TransH, TransR and TransD.

Fast-TransX: efficient lightweight C++ inferences for TransE and its extended models utilizing the framework of OpenKE, including TransH, TransR, TransD, TranSparse and PTransE.

UPDATE

We are now developing a new version of OpenKE-PyTorch. The project has been completely reconstructed and is faster, more extendable and the codes are easier to read and use now. If you need get to the old version, please refer to branch OpenKE-PyTorch(old).

New Features

Models

OpenKE (Tensorflow):

OpenKE (PyTorch):

We welcome any issues and requests for model implementation and bug fix.

Experimental Settings

For each test triplet, the head is removed and replaced by each of the entities from the entity set in turn. The scores of those corrupted triplets are first computed by the models and then sorted by the order. Then, we get the rank of the correct entity. This whole procedure is also repeated by removing those tail entities. We report the proportion of those correct entities ranked in the top 10/3/1 (Hits@10, Hits@3, Hits@1). The mean rank (MRR) and mean reciprocal rank (MRR) of the test triplets under this setting are also reported.

Because some corrupted triplets may be in the training set and validation set. In this case, those corrupted triplets may be ranked above the test triplet, but this should not be counted as an error because both triplets are true. Hence, we remove those corrupted triplets appearing in the training, validation or test set, which ensures the corrupted triplets are not in the dataset. We report the proportion of those correct entities ranked in the top 10/3/1 (Hits@10 (filter), Hits@3(filter), Hits@1(filter)) under this setting. The mean rank (MRR (filter)) and mean reciprocal rank (MRR (filter)) of the test triplets under this setting are also reported.

More details of the above-mentioned settings can be found from the papers TransE, ComplEx.

For those large-scale entity sets, to corrupt all entities with the whole entity set is time-costing. Hence, we also provide the experimental setting named "type constraint" to corrupt entities with some limited entity sets determining by their relations.

Experiments

We have provided the hyper-parameters of some models to achieve the state-of-the-art performace (Hits@10 (filter)) on FB15K237 and WN18RR. These scripts can be founded in the folder "./examples/". Up to now, these models include TransE, TransH, TransR, TransD, DistMult, ComplEx. The results of these models are as follows,

Model WN18RR FB15K237 WN18RR (Paper*) FB15K237 (Paper*)
TransE 0.512 0.476 0.501 0.486
TransH 0.507 0.490 - -
TransR 0.519 0.511 - -
TransD 0.508 0.487 - -
DistMult 0.479 0.419 0.49 0.419
ComplEx 0.485 0.426 0.51 0.428
ConvE 0.506 0.485 0.52 0.501
RotatE 0.549 0.479 - 0.480
RotatE (+adv) 0.565 0.522 0.571 0.533

We are still trying more hyper-parameters and more training strategies (e.g., adversarial training and label smoothing regularization) for these models. Hence, this table is still in change. We welcome everyone to help us update this table and hyper-parameters.

Installation

  1. Install PyTorch

  2. Clone the OpenKE-PyTorch branch:

    $ git clone -b OpenKE-PyTorch https://github.com/thunlp/OpenKE

    $ cd OpenKE

    $ cd openke

  3. Compile C++ files

    $ bash make.sh

  4. Quick Start

    $ cd ../

    $ cp examples/train_transe_FB15K237.py ./

    $ python train_transe_FB15K237.py

Data

To do

The document of the new version of OpenKE-PyTorch will come soon.