Search Results for author: Yuexin Wu

Found 13 papers, 9 papers with code

A Gumbel-based activation function for imbalanced datasets

1 code implementation9 Dec 2020 Yuexin Wu, Tianyu Gao, Hongtao Liu

In our approach, we first define different Gumbel distributions for each rating level, which can be learned by historical rating statistics of users and items.

Recommendation Systems

TADO: Time-varying Attention with Dual-Optimizer Model

1 code implementation8 Dec 2020 Yuexin Wu, Tianyu Gao, Sihao Wang, Zhongmin Xiong

As the first attempt in this field to address this problem, we propose a flexible dual-optimizer model to gain robustness from both regression loss and classification loss.

Recommendation Systems

Knowledge Embedding Based Graph Convolutional Network

1 code implementation12 Jun 2020 Donghan Yu, Yiming Yang, Ruohong Zhang, Yuexin Wu

Recently, a considerable literature has grown up around the theme of Graph Convolutional Network (GCN).

Knowledge Graph Embedding Knowledge Graphs

Graph-Revised Convolutional Network

1 code implementation17 Nov 2019 Donghan Yu, Ruohong Zhang, Zhengbao Jiang, Yuexin Wu, Yiming Yang

Graph Convolutional Networks (GCNs) have received increasing attention in the machine learning community for effectively leveraging both the content features of nodes and the linkage patterns across graphs in various applications.

Active Learning for Graph Neural Networks via Node Feature Propagation

no code implementations16 Oct 2019 Yuexin Wu, Yichong Xu, Aarti Singh, Yiming Yang, Artur Dubrawski

Graph Neural Networks (GNNs) for prediction tasks like node classification or edge prediction have received increasing attention in recent machine learning from graphically structured data.

Active Learning General Classification +1

Switch-based Active Deep Dyna-Q: Efficient Adaptive Planning for Task-Completion Dialogue Policy Learning

1 code implementation19 Nov 2018 Yuexin Wu, Xiujun Li, Jingjing Liu, Jianfeng Gao, Yiming Yang

Training task-completion dialogue agents with reinforcement learning usually requires a large number of real user experiences.

Active Learning Q-Learning +1

Unsupervised Cross-lingual Transfer of Word Embedding Spaces

1 code implementation EMNLP 2018 Ruochen Xu, Yiming Yang, Naoki Otani, Yuexin Wu

Supervised methods for this problem rely on the availability of cross-lingual supervision, either using parallel corpora or bilingual lexicons as the labeled data for training, which may not be available for many low resource languages.

Bilingual Lexicon Induction Cross-Lingual Transfer +3

Contextual Encoding for Translation Quality Estimation

1 code implementation WS 2018 Junjie Hu, Wei-Cheng Chang, Yuexin Wu, Graham Neubig

In this paper, propose a method to effectively encode the local and global contextual information for each target word using a three-part neural network approach.

Translation

Analogical Inference for Multi-Relational Embeddings

1 code implementation ICML 2017 Hanxiao Liu, Yuexin Wu, Yiming Yang

Large-scale multi-relational embedding refers to the task of learning the latent representations for entities and relations in large knowledge graphs.

Knowledge Graphs Link Prediction

Computational Protein Design Using AND/OR Branch-and-Bound Search

no code implementations8 Dec 2014 Yichao Zhou, Yuexin Wu, Jianyang Zeng

The computation of the global minimum energy conformation (GMEC) is an important and challenging topic in structure-based computational protein design.

Combinatorial Optimization

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