Search Results for author: Zhengwei Wu

Found 7 papers, 3 papers with code

Leave No One Behind: Online Self-Supervised Self-Distillation for Sequential Recommendation

no code implementations22 Mar 2024 Shaowei Wei, Zhengwei Wu, Xin Li, Qintong Wu, Zhiqiang Zhang, Jun Zhou, Lihong Gu, Jinjie Gu

Subsequently, we employ self-distillation to facilitate the transfer of knowledge from users with extensive behaviors (teachers) to users with limited behaviors (students).

Clustering Contrastive Learning +3

Long-tail Augmented Graph Contrastive Learning for Recommendation

1 code implementation20 Sep 2023 Qian Zhao, Zhengwei Wu, Zhiqiang Zhang, Jun Zhou

To make the data augmentation schema learnable, we design an auto drop module to generate pseudo-tail nodes from head nodes and a knowledge transfer module to reconstruct the head nodes from pseudo-tail nodes.

Contrastive Learning Data Augmentation +2

Generative Contrastive Graph Learning for Recommendation

1 code implementation11 Jul 2023 Yonghui Yang, Zhengwei Wu, Le Wu, Kun Zhang, Richang Hong, Zhiqiang Zhang, Jun Zhou, Meng Wang

Second, feature augmentation imposes the same scale noise augmentation on each node, which neglects the unique characteristics of nodes on the graph.

Collaborative Filtering Contrastive Learning +3

Bandit Samplers for Training Graph Neural Networks

2 code implementations NeurIPS 2020 Ziqi Liu, Zhengwei Wu, Zhiqiang Zhang, Jun Zhou, Shuang Yang, Le Song, Yuan Qi

However, due to the intractable computation of optimal sampling distribution, these sampling algorithms are suboptimal for GCNs and are not applicable to more general graph neural networks (GNNs) where the message aggregator contains learned weights rather than fixed weights, such as Graph Attention Networks (GAT).

Graph Attention

Belief dynamics extraction

no code implementations2 Feb 2019 Arun Kumar, Zhengwei Wu, Xaq Pitkow, Paul Schrater

Estimating the structure of these internal states is crucial for understanding the neural basis of behavior.

Model-based Reinforcement Learning

Inverse Rational Control: Inferring What You Think from How You Forage

no code implementations24 May 2018 Zhengwei Wu, Paul Schrater, Xaq Pitkow

Complex behaviors are often driven by an internal model, which integrates sensory information over time and facilitates long-term planning.

Imitation Learning

Store Location Selection via Mining Search Query Logs of Baidu Maps

no code implementations12 Jun 2016 Mengwen Xu, Tianyi Wang, Zhengwei Wu, Jingbo Zhou, Jian Li, Haishan Wu

In this paper, we propose a Demand Distribution Driven Store Placement (D3SP) framework for business store placement by mining search query data from Baidu Maps.

Clustering

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