Search Results for author: Zeyang Zhang

Found 15 papers, 5 papers with code

Graph Meets LLMs: Towards Large Graph Models

1 code implementation28 Aug 2023 Ziwei Zhang, Haoyang Li, Zeyang Zhang, Yijian Qin, Xin Wang, Wenwu Zhu

In order to promote applying large models for graphs forward, we present a perspective paper to discuss the challenges and opportunities associated with developing large graph models.

NAS-Bench-Graph: Benchmarking Graph Neural Architecture Search

1 code implementation18 Jun 2022 Yijian Qin, Ziwei Zhang, Xin Wang, Zeyang Zhang, Wenwu Zhu

To the best of our knowledge, our work is the first benchmark for graph neural architecture search.

Benchmarking Neural Architecture Search

Learning to Solve Travelling Salesman Problem with Hardness-adaptive Curriculum

1 code implementation7 Apr 2022 Zeyang Zhang, Ziwei Zhang, Xin Wang, Wenwu Zhu

To solve these challenges, we first propose a principled hardness measurement to quantify the hardness of TSP instances.

Combinatorial Optimization

Spectral Invariant Learning for Dynamic Graphs under Distribution Shifts

1 code implementation NeurIPS 2023 Zeyang Zhang, Xin Wang, Ziwei Zhang, Zhou Qin, Weigao Wen, Hui Xue, Haoyang Li, Wenwu Zhu

In this paper, we discover that there exist cases with distribution shifts unobservable in the time domain while observable in the spectral domain, and propose to study distribution shifts on dynamic graphs in the spectral domain for the first time.

Link Prediction Node Classification

Graph Differentiable Architecture Search with Structure Learning

no code implementations NeurIPS 2021 Yijian Qin, Xin Wang, Zeyang Zhang, Wenwu Zhu

Extensive experiments on real-world graph datasets demonstrate that our proposed GASSO model is able to achieve state-of-the-art performance compared with existing baselines.

Denoising Graph structure learning +1

Revisiting Transformation Invariant Geometric Deep Learning: Are Initial Representations All You Need?

no code implementations23 Dec 2021 Ziwei Zhang, Xin Wang, Zeyang Zhang, Peng Cui, Wenwu Zhu

Based on the experimental results, we advocate that TinvNN should be considered a new starting point and an essential baseline for further studies of transformation-invariant geometric deep learning.

Combinatorial Optimization Inductive Bias

LLM4DyG: Can Large Language Models Solve Spatial-Temporal Problems on Dynamic Graphs?

no code implementations26 Oct 2023 Zeyang Zhang, Xin Wang, Ziwei Zhang, Haoyang Li, Yijian Qin, Wenwu Zhu

Our main observations are: 1) LLMs have preliminary spatial-temporal understanding abilities on dynamic graphs, 2) Dynamic graph tasks show increasing difficulties for LLMs as the graph size and density increase, while not sensitive to the time span and data generation mechanism, 3) the proposed DST2 prompting method can help to improve LLMs' spatial-temporal understanding abilities on dynamic graphs for most tasks.

Out-of-Distribution Generalized Dynamic Graph Neural Network with Disentangled Intervention and Invariance Promotion

no code implementations24 Nov 2023 Zeyang Zhang, Xin Wang, Ziwei Zhang, Haoyang Li, Wenwu Zhu

In this paper, we propose Disentangled Intervention-based Dynamic graph Attention networks with Invariance Promotion (I-DIDA) to handle spatio-temporal distribution shifts in dynamic graphs by discovering and utilizing invariant patterns, i. e., structures and features whose predictive abilities are stable across distribution shifts.

Graph Attention

Out-of-Distribution Generalized Dynamic Graph Neural Network for Human Albumin Prediction

no code implementations27 Nov 2023 Zeyang Zhang, Xingwang Li, Fei Teng, Ning Lin, Xueling Zhu, Xin Wang, Wenwu Zhu

We first model human albumin prediction as a dynamic graph regression problem to model the dynamics and patient relationship.

Graph Attention Graph Regression +1

LLM4VG: Large Language Models Evaluation for Video Grounding

no code implementations21 Dec 2023 Wei Feng, Xin Wang, Hong Chen, Zeyang Zhang, Zihan Song, Yuwei Zhou, Wenwu Zhu

Recently, researchers have attempted to investigate the capability of LLMs in handling videos and proposed several video LLM models.

Image Captioning Video Grounding +1

Unsupervised Graph Neural Architecture Search with Disentangled Self-supervision

no code implementations NeurIPS 2023 Zeyang Zhang, Xin Wang, Ziwei Zhang, Guangyao Shen, Shiqi Shen, Wenwu Zhu

To address the challenge, we propose a novel Disentangled Self-supervised Graph Neural Architecture Search (DSGAS) model, which is able to discover the optimal architectures capturing various latent graph factors in a self-supervised fashion based on unlabeled graph data.

Disentanglement Neural Architecture Search

Exploring the Potential of Large Language Models in Graph Generation

no code implementations21 Mar 2024 Yang Yao, Xin Wang, Zeyang Zhang, Yijian Qin, Ziwei Zhang, Xu Chu, Yuekui Yang, Wenwu Zhu, Hong Mei

In this paper, we propose LLM4GraphGen to explore the ability of LLMs for graph generation with systematical task designs and extensive experiments.

Drug Discovery Graph Generation +1

LLM-Enhanced Causal Discovery in Temporal Domain from Interventional Data

no code implementations23 Apr 2024 Peiwen Li, Xin Wang, Zeyang Zhang, Yuan Meng, Fang Shen, Yue Li, Jialong Wang, Yang Li, Wenweu Zhu

In the field of Artificial Intelligence for Information Technology Operations, causal discovery is pivotal for operation and maintenance of graph construction, facilitating downstream industrial tasks such as root cause analysis.

graph construction

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