Search Results for author: Haishuai Wang

Found 12 papers, 7 papers with code

Graph Spatiotemporal Process for Multivariate Time Series Anomaly Detection with Missing Values

no code implementations11 Jan 2024 Yu Zheng, Huan Yee Koh, Ming Jin, Lianhua Chi, Haishuai Wang, Khoa T. Phan, Yi-Ping Phoebe Chen, Shirui Pan, Wei Xiang

However, real-world time series data is usually not well-structured, posting significant challenges to existing approaches: (1) The existence of missing values in multivariate time series data along variable and time dimensions hinders the effective modeling of interwoven spatial and temporal dependencies, resulting in important patterns being overlooked during model training; (2) Anomaly scoring with irregularly-sampled observations is less explored, making it difficult to use existing detectors for multivariate series without fully-observed values.

Anomaly Detection Time Series +1

Less is More: A Closer Look at Semantic-based Few-Shot Learning

no code implementations10 Jan 2024 Chunpeng Zhou, Haishuai Wang, Xilu Yuan, Zhi Yu, Jiajun Bu

To address this, we propose a simple but effective framework for few-shot learning tasks, specifically designed to exploit the textual information and language model.

Few-Shot Learning Language Modelling

Heterogeneous Graph Neural Architecture Search with GPT-4

1 code implementation14 Dec 2023 Haoyuan Dong, Yang Gao, Haishuai Wang, Hong Yang, Peng Zhang

The basic idea of GHGNAS is to design a set of prompts that can guide GPT-4 toward the task of generating new heterogeneous graph neural architectures.

Neural Architecture Search

Partition Speeds Up Learning Implicit Neural Representations Based on Exponential-Increase Hypothesis

1 code implementation ICCV 2023 Ke Liu, Feng Liu, Haishuai Wang, Ning Ma, Jiajun Bu, Bo Han

Based on this fact, we introduce a simple partition mechanism to boost the performance of two INR methods for image reconstruction: one for learning INRs, and the other for learning-to-learn INRs.

Image Reconstruction Semantic Segmentation

Contrast Everything: A Hierarchical Contrastive Framework for Medical Time-Series

1 code implementation NeurIPS 2023 Yihe Wang, Yu Han, Haishuai Wang, Xiang Zhang

The results demonstrate that COMET consistently outperforms all baselines, particularly in setup with 10% and 1% labeled data fractions across all datasets.

Contrastive Learning EEG +3

Graph Neural Architecture Search with GPT-4

no code implementations30 Sep 2023 Haishuai Wang, Yang Gao, Xin Zheng, Peng Zhang, Hongyang Chen, Jiajun Bu, Philip S. Yu

In this paper, we integrate GPT-4 into GNAS and propose a new GPT-4 based Graph Neural Architecture Search method (GPT4GNAS for short).

Neural Architecture Search

Multi-View Fusion and Distillation for Subgrade Distresses Detection based on 3D-GPR

1 code implementation9 Aug 2023 Chunpeng Zhou, Kangjie Ning, Haishuai Wang, Zhi Yu, Sheng Zhou, Jiajun Bu

To address these challenges, we introduce a novel methodology for the subgrade distress detection task by leveraging the multi-view information from 3D-GPR data.

GPR Knowledge Distillation +1

CPDG: A Contrastive Pre-Training Method for Dynamic Graph Neural Networks

no code implementations6 Jul 2023 Yuanchen Bei, Hao Xu, Sheng Zhou, Huixuan Chi, Haishuai Wang, Mengdi Zhang, Zhao Li, Jiajun Bu

Dynamic graph data mining has gained popularity in recent years due to the rich information contained in dynamic graphs and their widespread use in the real world.

Hilbert Distillation for Cross-Dimensionality Networks

1 code implementation8 Nov 2022 Dian Qin, Haishuai Wang, Zhe Liu, Hongjia Xu, Sheng Zhou, Jiajun Bu

Since the distilled 2D networks are supervised by the curves converted from dimensionally heterogeneous 3D features, the 2D networks are given an informative view in terms of learning structural information embedded in well-trained high-dimensional representations.

Logo-2K+: A Large-Scale Logo Dataset for Scalable Logo Classification

1 code implementation11 Nov 2019 Jing Wang, Weiqing Min, Sujuan Hou, Shengnan Ma, Yuanjie Zheng, Haishuai Wang, Shuqiang Jiang

Moreover, we propose a Discriminative Region Navigation and Augmentation Network (DRNA-Net), which is capable of discovering more informative logo regions and augmenting these image regions for logo classification.

2k Classification +3

Temporal Feature Selection on Networked Time Series

no code implementations20 Dec 2016 Haishuai Wang, Jia Wu, Peng Zhang, Chengqi Zhang

For example, social network users are considered to be social sensors that continuously generate social signals (tweets) represented as a time series.

feature selection Time Series +2

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