Search Results for author: Yongchao Liu

Found 24 papers, 10 papers with code

GraphGen+: Advancing Distributed Subgraph Generation and Graph Learning On Industrial Graphs

no code implementations8 Mar 2025 Yue Jin, Yongchao Liu, Chuntao Hong

Graph-based computations are crucial in a wide range of applications, where graphs can scale to trillions of edges.

Graph Learning

Transferable and Forecastable User Targeting Foundation Model

no code implementations17 Dec 2024 Bin Dou, Baokun Wang, Yun Zhu, Xiaotong LIN, Yike Xu, Xiaorui Huang, Yang Chen, Yun Liu, Shaoshuai Han, Yongchao Liu, Tianyi Zhang, Yu Cheng, Weiqiang Wang, Chuntao Hong

User targeting, the process of selecting targeted users from a pool of candidates for non-expert marketers, has garnered substantial attention with the advancements in digital marketing.

Marketing model +1

Multi-Grained Preference Enhanced Transformer for Multi-Behavior Sequential Recommendation

1 code implementation19 Nov 2024 Chuan He, Yongchao Liu, Qiang Li, Weiqiang Wang, Xin Fu, Xinyi Fu, Chuntao Hong, Xinwei Yao

Secondly, a novel multi-scale transformer architecture equipped with multi-grained user preference extraction is proposed to encode the interaction-aware sequential pattern enhanced by capturing temporal behavior-aware multi-grained preference .

Sequential Recommendation

GraphRPM: Risk Pattern Mining on Industrial Large Attributed Graphs

no code implementations11 Nov 2024 Sheng Tian, Xintan Zeng, Yifei Hu, Baokun Wang, Yongchao Liu, Yue Jin, Changhua Meng, Chuntao Hong, Tianyi Zhang, Weiqiang Wang

Graph-based patterns are extensively employed and favored by practitioners within industrial companies due to their capacity to represent the behavioral attributes and topological relationships among users, thereby offering enhanced interpretability in comparison to black-box models commonly utilized for classification and recognition tasks.

Subgraph Retrieval Enhanced by Graph-Text Alignment for Commonsense Question Answering

no code implementations11 Nov 2024 Boci Peng, Yongchao Liu, Xiaohe Bo, Sheng Tian, Baokun Wang, Chuntao Hong, Yan Zhang

Firstly, we transform the knowledge graph into a database of subgraph vectors and propose a BFS-style subgraph sampling strategy to avoid information loss, leveraging the analogy between BFS and the message-passing mechanism.

Contrastive Learning Question Answering +1

GraphCLIP: Enhancing Transferability in Graph Foundation Models for Text-Attributed Graphs

1 code implementation14 Oct 2024 Yun Zhu, Haizhou Shi, Xiaotang Wang, Yongchao Liu, Yaoke Wang, Boci Peng, Chuntao Hong, Siliang Tang

In this work, we propose the GraphCLIP framework to address these challenges by learning graph foundation models with strong cross-domain zero/few-shot transferability through a self-supervised contrastive graph-summary pretraining method.

Few-Shot Learning TAG

Scalable and Accurate Graph Reasoning with LLM-based Multi-Agents

no code implementations7 Oct 2024 Yuwei Hu, Runlin Lei, Xinyi Huang, Zhewei Wei, Yongchao Liu

Recent research has explored the use of Large Language Models (LLMs) for tackling complex graph reasoning tasks.

CL4KGE: A Curriculum Learning Method for Knowledge Graph Embedding

no code implementations27 Aug 2024 Yang Liu, Chuan Zhou, Peng Zhang, Yanan Cao, Yongchao Liu, Zhao Li, Hongyang Chen

Knowledge graph embedding (KGE) constitutes a foundational task, directed towards learning representations for entities and relations within knowledge graphs (KGs), with the objective of crafting representations comprehensive enough to approximate the logical and symbolic interconnections among entities.

Knowledge Graph Embedding Knowledge Graphs

Graph Retrieval-Augmented Generation: A Survey

1 code implementation15 Aug 2024 Boci Peng, Yun Zhu, Yongchao Liu, Xiaohe Bo, Haizhou Shi, Chuntao Hong, Yan Zhang, Siliang Tang

Recently, Retrieval-Augmented Generation (RAG) has achieved remarkable success in addressing the challenges of Large Language Models (LLMs) without necessitating retraining.

Hallucination RAG +2

Graph Triple Attention Network: A Decoupled Perspective

1 code implementation14 Aug 2024 Xiaotang Wang, Yun Zhu, Haizhou Shi, Yongchao Liu, Chuntao Hong

To address these challenges, we propose a high-level decoupled perspective of GTs, breaking them down into three components and two interaction levels: positional attention, structural attention, and attribute attention, alongside local and global interaction.

Attribute Graph Classification +1

AGD: an Auto-switchable Optimizer using Stepwise Gradient Difference for Preconditioning Matrix

2 code implementations NeurIPS 2023 Yun Yue, Zhiling Ye, Jiadi Jiang, Yongchao Liu, Ke Zhang

Additionally, we introduce an auto-switching function that enables the preconditioning matrix to switch dynamically between Stochastic Gradient Descent (SGD) and the adaptive optimizer.

Recommendation Systems

Sharpness-Aware Minimization Revisited: Weighted Sharpness as a Regularization Term

1 code implementation25 May 2023 Yun Yue, Jiadi Jiang, Zhiling Ye, Ning Gao, Yongchao Liu, Ke Zhang

Deep Neural Networks (DNNs) generalization is known to be closely related to the flatness of minima, leading to the development of Sharpness-Aware Minimization (SAM) for seeking flatter minima and better generalization.

Adaptive Optimizers with Sparse Group Lasso for Neural Networks in CTR Prediction

2 code implementations30 Jul 2021 Yun Yue, Yongchao Liu, Suo Tong, Minghao Li, Zhen Zhang, Chunyang Wen, Huanjun Bao, Lihong Gu, Jinjie Gu, Yixiang Mu

We develop a novel framework that adds the regularizers of the sparse group lasso to a family of adaptive optimizers in deep learning, such as Momentum, Adagrad, Adam, AMSGrad, AdaHessian, and create a new class of optimizers, which are named Group Momentum, Group Adagrad, Group Adam, Group AMSGrad and Group AdaHessian, etc., accordingly.

Click-Through Rate Prediction

Path-based Deep Network for Candidate Item Matching in Recommenders

no code implementations18 May 2021 Houyi Li, Zhihong Chen, Chenliang Li, Rong Xiao, Hongbo Deng, Peng Zhang, Yongchao Liu, Haihong Tang

PDN utilizes Trigger Net to capture the user's interest in each of his/her interacted item, and Similarity Net to evaluate the similarity between each interacted item and the target item based on these items' profile and CF information.

Diversity Recommendation Systems +1

GIPA: General Information Propagation Algorithm for Graph Learning

2 code implementations13 May 2021 Qinkai Zheng, Houyi Li, Peng Zhang, Zhixiong Yang, Guowei Zhang, Xintan Zeng, Yongchao Liu

Graph neural networks (GNNs) have been popularly used in analyzing graph-structured data, showing promising results in various applications such as node classification, link prediction and network recommendation.

Graph Attention Graph Learning +2

GraphTheta: A Distributed Graph Neural Network Learning System With Flexible Training Strategy

1 code implementation21 Apr 2021 Yongchao Liu, Houyi Li, Guowei Zhang, Xintan Zeng, Yongyong Li, Bin Huang, Peng Zhang, Zhao Li, Xiaowei Zhu, Changhua He, WenGuang Chen

Herein, we present GraphTheta, the first distributed and scalable graph learning system built upon vertex-centric distributed graph processing with neural network operators implemented as user-defined functions.

Graph Learning Graph Neural Network

Adaptive Optimizers with Sparse Group Lasso

no code implementations1 Jan 2021 Yun Yue, Suo Tong, Zhen Zhang, Yongchao Liu, Chunyang Wen, Huanjun Bao, Jinjie Gu, Yixiang Mu

We develop a novel framework that adds the regularizers to a family of adaptive optimizers in deep learning, such as MOMENTUM, ADAGRAD, ADAM, AMSGRAD, ADAHESSIAN, and create a new class of optimizers, which are named GROUP MOMENTUM, GROUP ADAGRAD, GROUP ADAM, GROUP AMSGRAD and GROUP ADAHESSIAN, etc., accordingly.

Deep Learning

A Generalized and Robust Method Towards Practical Gaze Estimation on Smart Phone

no code implementations16 Oct 2019 Tianchu Guo, Yongchao Liu, HUI ZHANG, Xiabing Liu, Youngjun Kwak, Byung In Yoo, Jae-Joon Han, Changkyu Choi

For the second issue, we define a new metric to measure the robustness of gaze estimator, and propose an adversarial training based Disturbance with Ordinal loss (DwO) method to improve it.

Gaze Estimation Knowledge Distillation

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