Search Results for author: Yanyan Shen

Found 24 papers, 8 papers with code

Rethinking Channel Dependence for Multivariate Time Series Forecasting: Learning from Leading Indicators

1 code implementation31 Jan 2024 Lifan Zhao, Yanyan Shen

Recently, channel-independent methods have achieved state-of-the-art performance in multivariate time series (MTS) forecasting.

Multivariate Time Series Forecasting Time Series

Towards Fine-Grained Explainability for Heterogeneous Graph Neural Network

1 code implementation23 Dec 2023 Tong Li, Jiale Deng, Yanyan Shen, Luyu Qiu, Yongxiang Huang, Caleb Chen Cao

Heterogeneous graph neural networks (HGNs) are prominent approaches to node classification tasks on heterogeneous graphs.

Node Classification

SSIN: Self-Supervised Learning for Rainfall Spatial Interpolation

1 code implementation27 Nov 2023 Jia Li, Yanyan Shen, Lei Chen, Charles Wang Wai Ng

Inspired by the Cloze task and BERT, we fully consider the characteristics of spatial interpolation and design the SpaFormer model based on the Transformer architecture as the core of SSIN.

Self-Supervised Learning Spatial Interpolation

Methods for Acquiring and Incorporating Knowledge into Stock Price Prediction: A Survey

no code implementations9 Aug 2023 Liping Wang, Jiawei Li, Lifan Zhao, Zhizhuo Kou, Xiaohan Wang, Xinyi Zhu, Hao Wang, Yanyan Shen, Lei Chen

Predicting stock prices presents a challenging research problem due to the inherent volatility and non-linear nature of the stock market.

Stock Price Prediction

DoubleAdapt: A Meta-learning Approach to Incremental Learning for Stock Trend Forecasting

no code implementations16 Jun 2023 Lifan Zhao, Shuming Kong, Yanyan Shen

To address this challenge, we propose DoubleAdapt, an end-to-end framework with two adapters, which can effectively adapt the data and the model to mitigate the effects of distribution shifts.

Incremental Learning Meta-Learning

RESUS: Warm-Up Cold Users via Meta-Learning Residual User Preferences in CTR Prediction

1 code implementation28 Oct 2022 Yanyan Shen, Lifan Zhao, Weiyu Cheng, Zibin Zhang, Wenwen Zhou, Kangyi Lin

Specifically, we employ a shared predictor to infer basis user preferences, which acquires global preference knowledge from the interactions of different users.

Click-Through Rate Prediction Meta-Learning +2

Dynamic Community Detection via Adversarial Temporal Graph Representation Learning

no code implementations29 Jun 2022 Changwei Gong, Changhong Jing, Yanyan Shen, Shuqiang Wang

Dynamic community detection has been prospered as a powerful tool for quantifying changes in dynamic brain network connectivity patterns by identifying strongly connected sets of nodes.

Community Detection Dynamic Community Detection +2

Morphological feature visualization of Alzheimer's disease via Multidirectional Perception GAN

no code implementations25 Nov 2021 Wen Yu, Baiying Lei, Yanyan Shen, Shuqiang Wang, Yong liu, Zhiguang Feng, Yong Hu, Michael K. Ng

In this work, a novel Multidirectional Perception Generative Adversarial Network (MP-GAN) is proposed to visualize the morphological features indicating the severity of AD for patients of different stages.

Generative Adversarial Network

Fault Diagnosis of Nonlinear Systems Using a Hybrid-Degree Dual Cubature-based Estimation Scheme

no code implementations13 Nov 2021 Yanyan Shen, Khashayar Khorasani

In this paper, a novel hybrid-degree dual estimation approach based on cubature rules and cubature-based nonlinear filters is proposed for fault diagnosis of nonlinear systems through simultaneous state and time-varying parameter estimation.

Fault Detection

A Prior Guided Adversarial Representation Learning and Hypergraph Perceptual Network for Predicting Abnormal Connections of Alzheimer's Disease

no code implementations12 Oct 2021 Qiankun Zuo, Baiying Lei, Shuqiang Wang, Yong liu, BingChuan Wang, Yanyan Shen

The proposed model can evaluate characteristics of abnormal brain connections at different stages of Alzheimer's disease, which is helpful for cognitive disease study and early treatment.

Representation Learning

Resolving Training Biases via Influence-based Data Relabeling

1 code implementation ICLR 2022 Shuming Kong, Yanyan Shen, Linpeng Huang

To achieve this, we use influence functions to estimate how relabeling a training sample would affect model's test performance and further develop a novel relabeling function R. We theoretically prove that applying R to relabel harmful training samples allows the model to achieve lower test loss than simply discarding them for any classification tasks using cross-entropy loss.

3D Brain Reconstruction by Hierarchical Shape-Perception Network from a Single Incomplete Image

no code implementations23 Jul 2021 Bowen Hu, Baiying Lei, Shuqiang Wang, Yong liu, BingChuan Wang, Min Gan, Yanyan Shen

A branching predictor and several hierarchical attention pipelines are constructed to generate point clouds that accurately describe the incomplete images and then complete these point clouds with high quality.

3D Shape Reconstruction

A Point Cloud Generative Model via Tree-Structured Graph Convolutions for 3D Brain Shape Reconstruction

no code implementations21 Jul 2021 Bowen Hu, Baiying Lei, Yanyan Shen, Yong liu, Shuqiang Wang

Fusing medical images and the corresponding 3D shape representation can provide complementary information and microstructure details to improve the operational performance and accuracy in brain surgery.

3D Shape Representation Generative Adversarial Network

Multimodal Representations Learning and Adversarial Hypergraph Fusion for Early Alzheimer's Disease Prediction

no code implementations21 Jul 2021 Qiankun Zuo, Baiying Lei, Yanyan Shen, Yong liu, Zhiguang Feng, Shuqiang Wang

Then two hypergraphs are constructed from the latent representations and the adversarial network based on graph convolution is employed to narrow the distribution difference of hyperedge features.

Alzheimer's Disease Detection Disease Prediction +1

Characterization Multimodal Connectivity of Brain Network by Hypergraph GAN for Alzheimer's Disease Analysis

no code implementations21 Jul 2021 Junren Pan, Baiying Lei, Yanyan Shen, Yong liu, Zhiguang Feng, Shuqiang Wang

Using multimodal neuroimaging data to characterize brain network is currently an advanced technique for Alzheimer's disease(AD) Analysis.

White Matter Fiber Tractography

Bidirectional Mapping Generative Adversarial Networks for Brain MR to PET Synthesis

no code implementations8 Aug 2020 Shengye Hu, Baiying Lei, Yong Wang, Zhiguang Feng, Yanyan Shen, Shuqiang Wang

Fusing multi-modality medical images, such as MR and PET, can provide various anatomical or functional information about human body.

Tensorizing GAN with High-Order Pooling for Alzheimer's Disease Assessment

no code implementations3 Aug 2020 Wen Yu, Baiying Lei, Michael K. Ng, Albert C. Cheung, Yanyan Shen, Shuqiang Wang

To the best of our knowledge, the proposed Tensor-train, High-pooling and Semi-supervised learning based GAN (THS-GAN) is the first work to deal with classification on MRI images for AD diagnosis.

Vocal Bursts Intensity Prediction

Differentiable Neural Input Search for Recommender Systems

no code implementations8 Jun 2020 Weiyu Cheng, Yanyan Shen, Linpeng Huang

The dimensions of different feature embeddings are often set to a same value empirically, which limits the predictive performance of latent factor models.

Click-Through Rate Prediction Recommendation Systems

Adaptive Factorization Network: Learning Adaptive-Order Feature Interactions

4 code implementations7 Sep 2019 Weiyu Cheng, Yanyan Shen, Linpeng Huang

Various factorization-based methods have been proposed to leverage second-order, or higher-order cross features for boosting the performance of predictive models.

Click-Through Rate Prediction

Incorporating Interpretability into Latent Factor Models via Fast Influence Analysis

1 code implementation KDD 2019 2019 Weiyu Cheng, Yanyan Shen, Linpeng Huang, Yanmin Zhu

The results demonstrate the effectiveness and efficiency of FIA, and the usefulness of the generated explanations for the recommendation results.

Collaborative Filtering

Revisiting Flow Information for Traffic Prediction

no code implementations3 Jun 2019 Xian Zhou, Yanyan Shen, Linpeng Huang

However, existing traffic prediction methods focus on modeling complex spatiotemporal traffic correlations and seldomly study the influence of the original traffic flows among regions.

Traffic Prediction

Explaining Latent Factor Models for Recommendation with Influence Functions

no code implementations20 Nov 2018 Weiyu Cheng, Yanyan Shen, Yanmin Zhu, Linpeng Huang

Latent factor models (LFMs) such as matrix factorization achieve the state-of-the-art performance among various Collaborative Filtering (CF) approaches for recommendation.

Collaborative Filtering

A Neural Attention Model for Urban Air Quality Inference: Learning the Weights of Monitoring Stations

1 code implementation AAAI 2018 Weiyu Cheng, Yanyan Shen, Yanmin Zhu, Linpeng Huang

We leverage both the information from monitoring stations and urban data that are closely related to air quality, including POIs, road networks and meteorology.

Air Quality Inference

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