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学者姓名：胡永利
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Abstract ：
Formulating optimal bidding strategies is pivotal for market participants to enhance electricity market profits. The main challenge for finding optimal bidding strategies is how to deal with system uncertainty, which stems from the inherent unpredictability and fluctuation within the electricity market. In the previous works, deep reinforcement learning (DRL) is proved a promising approach in multi-agent system with uncertainty. But few works model the relevance between agents for processing system uncertainty, especially the dynamic correlation in the operation of market. For this purpose, this paper proposes to model the correlation between agents to cope with the system uncertainty in a representative centralized double-sided auction market by combining graph convolutional neural network (GCN) with deep deterministic policy gradient (DDPG) algorithm, which is not only able to deal with the system uncertainty by aggregating correlative information of neighboring agents, but also helps obtain superior bidding strategies for the market participants. The proposed algorithm is evaluated on 4-bus, 30-bus and 57-bus congested network, where both supply side and demand side with elastic demand are modeled as RL agents. The results demonstrate that the proposed algorithm achieves higher system profits than the DRL based algorithms without GCN.
Keyword ：
Optimal bidding strategy Optimal bidding strategy Electricity market Electricity market Graph convolutional neural network (GCN) Graph convolutional neural network (GCN) Deep reinforcement learning (DRL) Deep reinforcement learning (DRL) Multi-agent systems (MAS) Multi-agent systems (MAS)
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| GB/T 7714 | Weng, Haoen , Hu, Yongli , Liang, Min et al. Optimizing bidding strategy in electricity market based on graph convolutional neural network and deep reinforcement learning [J]. | APPLIED ENERGY , 2025 , 380 . |
| MLA | Weng, Haoen et al. "Optimizing bidding strategy in electricity market based on graph convolutional neural network and deep reinforcement learning" . | APPLIED ENERGY 380 (2025) . |
| APA | Weng, Haoen , Hu, Yongli , Liang, Min , Xi, Jiayang , Yin, Baocai . Optimizing bidding strategy in electricity market based on graph convolutional neural network and deep reinforcement learning . | APPLIED ENERGY , 2025 , 380 . |
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Abstract ：
Traffic prediction is an important part of intelligent transportation system. Recently, graph convolution network (GCN) is introduced for traffic flow forecasting and achieves good performance due to its superiority of representing the graph traffic road structure network. Moreover, the dynamic GCN is put forward to model the temporal property of the traffic flow. Although great progress has been made, most GCN based traffic flow forecasting methods utilize a single graph for convolution, which is considered not enough to reveal the inherent property of traffic graph as it is influenced by many factors, for example weather, season and traffic accidents etc. In this paper, an exotic graph transformer based dynamic multiple graph convolution networks (GTDMGCN) is conceived for traffic flow forecasting. Instead of the single graph, multiple graphs are constructed to modulate the complex traffic network by the proposed graph transformer network. Additionally, a temporal gate convolution is proposed to get the temporal property of traffic flow. The proposed GTDMGCN model is evaluated on four real traffic datasets of PEMS03, PEMS04, PEMS07, PEMS08, and there are average increments of 9.78%, 7.80%, 5.96% under MAE, RMSE, and MAPE metrics compared with the current results.
Keyword ：
intelligent transportation systems intelligent transportation systems traffic information systems traffic information systems
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| GB/T 7714 | Hu, Yongli , Peng, Ting , Guo, Kan et al. Graph transformer based dynamic multiple graph convolution networks for traffic flow forecasting [J]. | IET INTELLIGENT TRANSPORT SYSTEMS , 2023 , 17 (9) : 1835-1845 . |
| MLA | Hu, Yongli et al. "Graph transformer based dynamic multiple graph convolution networks for traffic flow forecasting" . | IET INTELLIGENT TRANSPORT SYSTEMS 17 . 9 (2023) : 1835-1845 . |
| APA | Hu, Yongli , Peng, Ting , Guo, Kan , Sun, Yanfeng , Gao, Junbin , Yin, Baocai . Graph transformer based dynamic multiple graph convolution networks for traffic flow forecasting . | IET INTELLIGENT TRANSPORT SYSTEMS , 2023 , 17 (9) , 1835-1845 . |
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Abstract ：
Our paper proposes a new feature extraction method, named as robust discriminant analysis (RDA), for data classification tasks. Based on linear discriminant analysis (LDA), RDA integrates the feature selection and feature extraction into a unified framework. The transformation matrix with l2,1-norm constraint is introduced to map original data feature into a discriminative low-dimensional subspace, in which the l2,1 sparsity regularizer can endow the feature selection with better interpretability. And, we use two different matrices (i.e., transformation matrix P and reconstruction matrix Q) for better data reconstruction, which can provide more freedom to ensure that the learned data representation holds the main variance and hence improve robustness to noises. To ensure that the learned features are optimal for classification, the structurally incoherent learning is introduced to add additional discriminant ability by minimizing the correlation of different classes. In other hand, the between-classes structural incoherence term is also equivalent to cosine distance metric, which is robust to noises and outliers. An efficient optimization algorithm is designed to solve the proposed optimization model. Extensive experiments conducted on all kinds of benchmark databases confirm the superiority of the proposed method.(c) 2022 Elsevier Inc. All rights reserved.
Keyword ：
Robust data reconstruction Robust data reconstruction Feature selection Feature selection Feature extraction Feature extraction Structural incoherence Structural incoherence Linear discriminant analysis Linear discriminant analysis
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| GB/T 7714 | Guo, Jipeng , Sun, Yanfeng , Gao, Junbin et al. Robust discriminant analysis with feature selective projection and between-classes structural incoherence [J]. | DIGITAL SIGNAL PROCESSING , 2023 , 134 . |
| MLA | Guo, Jipeng et al. "Robust discriminant analysis with feature selective projection and between-classes structural incoherence" . | DIGITAL SIGNAL PROCESSING 134 (2023) . |
| APA | Guo, Jipeng , Sun, Yanfeng , Gao, Junbin , Hu, Yongli , Yin, Baocai . Robust discriminant analysis with feature selective projection and between-classes structural incoherence . | DIGITAL SIGNAL PROCESSING , 2023 , 134 . |
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Abstract ：
In industrial manufacturing, how to accurately classify defective products and locate the location of defects has always been a concern. Previous studies mainly measured similarity based on extracting single-scale features of samples. However, only using the features of a single scale is hard to represent different sizes and types of anomalies. Therefore, the authors propose a set of memory banks of multi-scale features (MBMF) to enrich feature representation and detect and locate various anomalies. To extract features of different scales, different aggregation functions are designed to produce the feature maps at different granularity. Based on the multi-scale features of normal samples, the MBMF are constructed. Meanwhile, to better adapt to the feature distribution of the training samples, the authors proposed a new iterative updating method for the memory banks. Testing on the widely used and challenging dataset of MVTec AD, the proposed MBMF achieves competitive image-level anomaly detection performance (Image-level Area Under the Receiver Operator Curve (AUROC)) and pixel-level anomaly segmentation performance (Pixel-level AUROC). To further evaluate the generalisation of the proposed method, we also implement anomaly detection on the BeanTech AD dataset, a commonly used dataset in the field of anomaly detection, and the Fashion-MNIST dataset, a widely used dataset in the field of image classification. The experimental results also verify the effectiveness of the proposed method. The authors propose a novel approach for accurate classification and localisation of defects in industrial manufacturing. The method, called Memory Banks of Multi-Scale Features (MBMF), enriches feature representation by utilising multi-scale features extracted through different aggregation functions. The authors demonstrate the effectiveness of MBMF through competitive performance in image-level anomaly detection and pixel-level anomaly segmentation on the challenging MVTec AD dataset.image
Keyword ：
feature extraction feature extraction unsupervised learning unsupervised learning computer vision computer vision convolutional neural nets convolutional neural nets Gaussian distribution Gaussian distribution
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| GB/T 7714 | Sun, Yanfeng , Wang, Haitao , Hu, Yongli et al. MBMF: Constructing memory banks of multi-scale features for anomaly detection [J]. | IET COMPUTER VISION , 2023 , 18 (3) : 355-369 . |
| MLA | Sun, Yanfeng et al. "MBMF: Constructing memory banks of multi-scale features for anomaly detection" . | IET COMPUTER VISION 18 . 3 (2023) : 355-369 . |
| APA | Sun, Yanfeng , Wang, Haitao , Hu, Yongli , Jiang, Huajie , Yin, Baocai . MBMF: Constructing memory banks of multi-scale features for anomaly detection . | IET COMPUTER VISION , 2023 , 18 (3) , 355-369 . |
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Abstract ：
本发明涉及一种基于对偶动态时空图卷积的交通预测方法，用于解决当前基于图网络的交通预测方法中存在缺少对边建模以及动态建模导致的预测精度不高的问题。首先输入历史交通数据，送到输入层进行处理，然后将输入层的输出送入动态时空层，经过动态时空层中多个堆叠的对偶动态时空块进行时空相关性特征抽取，再将这些特征输入到输出层，最后输出的即是最终的预测结果。其中，最核心和关键的对偶动态时空块包括动态图卷积模块、动态超图卷积模块，以及两个之间的动态交互模块。本发明能很好的挖掘交通数据中复杂的时空相关性，从而揭示动态交通系统潜在的时空关联，进而更加准确的对城市交通数据进行预测。
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| GB/T 7714 | 孙艳丰 , 江相衡 , 胡永利 et al. 一种基于对偶动态时空图卷积的交通预测方法 : CN202210096933.X[P]. | 2022-01-26 . |
| MLA | 孙艳丰 et al. "一种基于对偶动态时空图卷积的交通预测方法" : CN202210096933.X. | 2022-01-26 . |
| APA | 孙艳丰 , 江相衡 , 胡永利 , 郭侃 , 尹宝才 . 一种基于对偶动态时空图卷积的交通预测方法 : CN202210096933.X. | 2022-01-26 . |
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Abstract ：
Recently, Graph Convolution Network (GCN) and Temporal Convolution Network (TCN) are introduced into traffic prediction and achieve state-of-the-art performance due to their good ability for modeling the spatial and temporal property of traffic data. In spite of having good performance, the current methods generally focus on the traffic measurement of road segments, i.e. the nodes of traffic flow graph, while the edges of the graph, which represent the correlation of traffic data of different road segments and form the affinity matrix for GCN, are usually constructed according to the structure of road network, but the spatial and temporal properties are not well exploited in their theories. In this paper, we propose a Dual Dynamic Spatial-Temporal Graph Convolution Network (DDSTGCN), which not only models the dynamic property of the nodes of the traffic flow graph but also captures the dynamic spatial-temporal feature of the edges by transforming the traffic flow graph into its dual hypergraph. The traffic prediction is enhanced by the collaborative convolutions on the traffic flow graph and its dual hypergraph. The proposed method is evaluated by extensive traffic prediction experiments on six real road datasets and the results show that it outperforms state-of-the-art related methods. Source codes are available at https://github.com/j1o2h3n/DDSTGCN.
Keyword ：
Data models Data models hypergraph hypergraph Correlation Correlation Graph convolution network Graph convolution network Roads Roads Convolution Convolution intelligent transportation systems intelligent transportation systems Transportation Transportation traffic prediction traffic prediction Vehicle dynamics Vehicle dynamics Predictive models Predictive models
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| GB/T 7714 | Sun, Yanfeng , Jiang, Xiangheng , Hu, Yongli et al. Dual Dynamic Spatial-Temporal Graph Convolution Network for Traffic Prediction [J]. | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS , 2022 , 23 (12) : 23680-23693 . |
| MLA | Sun, Yanfeng et al. "Dual Dynamic Spatial-Temporal Graph Convolution Network for Traffic Prediction" . | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS 23 . 12 (2022) : 23680-23693 . |
| APA | Sun, Yanfeng , Jiang, Xiangheng , Hu, Yongli , Duan, Fuqing , Guo, Kan , Wang, Boyue et al. Dual Dynamic Spatial-Temporal Graph Convolution Network for Traffic Prediction . | IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS , 2022 , 23 (12) , 23680-23693 . |
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Abstract ：
Self-expressiveness based subspace clustering methods have received wide attention for unsupervised learning tasks. However, most existing subspace clustering methods consider data features as a whole and then focus only on one single self-representation. These approaches ignore the intrinsic multi-attribute information embedded in the original data feature and result in one-attribute self-representation. This paper proposes a novel multi-attribute subspace clustering (MASC) model that understands data from multiple attributes. MASC simultaneously learns multiple subspace representations corresponding to each specific attribute by exploiting the intrinsic multi-attribute features drawn from original data. In order to better capture the high-order correlation among multi-attribute representations, we represent them as a tensor in low-rank structure and propose the auto-weighted tensor nuclear norm (AWTNN) as a superior low-rank tensor approximation. Especially, the non-convex AWTNN fully considers the difference between singular values through the implicit and adaptive weights splitting during the AWTNN optimization procedure. We further develop an efficient algorithm to optimize the non-convex and multi-block MASC model and establish the convergence guarantees. A more comprehensive subspace representation can be obtained via aggregating these multi-attribute representations, which can be used to construct a clustering-friendly affinity matrix. Extensive experiments on eight real-world databases reveal that the proposed MASC exhibits superior performance over other subspace clustering methods.
Keyword ：
Subspace clustering Subspace clustering multi-attribute representation learning multi-attribute representation learning auto-weighted tensor nuclear norm auto-weighted tensor nuclear norm non-convex low-rank tensor approximation non-convex low-rank tensor approximation
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| GB/T 7714 | Guo, Jipeng , Sun, Yanfeng , Gao, Junbin et al. Multi-Attribute Subspace Clustering via Auto-Weighted Tensor Nuclear Norm Minimization [J]. | IEEE TRANSACTIONS ON IMAGE PROCESSING , 2022 , 31 : 7191-7205 . |
| MLA | Guo, Jipeng et al. "Multi-Attribute Subspace Clustering via Auto-Weighted Tensor Nuclear Norm Minimization" . | IEEE TRANSACTIONS ON IMAGE PROCESSING 31 (2022) : 7191-7205 . |
| APA | Guo, Jipeng , Sun, Yanfeng , Gao, Junbin , Hu, Yongli , Yin, Baocai . Multi-Attribute Subspace Clustering via Auto-Weighted Tensor Nuclear Norm Minimization . | IEEE TRANSACTIONS ON IMAGE PROCESSING , 2022 , 31 , 7191-7205 . |
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Abstract ：
Long document classification has aroused tremendous attention in the field of Nature Language Processing, due to the exponential increasing of publications. Although the common text classification methods can be extended for long document classification, they are confined to the length of text and do not have enough expressiveness to model the structure of the long document. To solve these problems, we proposed a hierarchical multiple granularity attention network for long document classification, in which the word and section level features are extracted and fused to represent the complex structure of the long document. Furthermore, a feature-based section pooling module is adopted to eliminate redundant text information and accelerate the computing. A series of experiments are conducted to evaluate the proposed method. The experimental results verify that our method is effective, efficient and competitive compared with the related state-of-the-art methods.
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| GB/T 7714 | Hu, Yongli , Ding, Wen , Liu, Tengfei et al. Hierarchical Multiple Granularity Attention Network for Long Document Classification [J]. | 2022 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN) , 2022 . |
| MLA | Hu, Yongli et al. "Hierarchical Multiple Granularity Attention Network for Long Document Classification" . | 2022 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN) (2022) . |
| APA | Hu, Yongli , Ding, Wen , Liu, Tengfei , Gao, Junbin , Sun, Yanfeng , Yin, Baocai . Hierarchical Multiple Granularity Attention Network for Long Document Classification . | 2022 INTERNATIONAL JOINT CONFERENCE ON NEURAL NETWORKS (IJCNN) , 2022 . |
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Abstract ：
Domain adaptation in the Euclidean space is a challenging task on which researchers recently have made great progress. However, in practice, there are rich data representations that are not Euclidean. For example, many high-dimensional data in computer vision are in general modeled by a low-dimensional manifold. This prompts the demand of exploring domain adaptation between non-Euclidean manifold spaces. This article is concerned with domain adaption over the classic Grassmann manifolds. An optimal transport-based domain adaptation model on Grassmann manifolds has been proposed. The model implements the adaption between datasets by minimizing the Wasserstein distances between the projected source data and the target data on Grassmann manifolds. Four regularization terms are introduced to keep task-related consistency in the adaptation process. Furthermore, to reduce the computational cost, a simplified model preserving the necessary adaption property and its efficient algorithm is proposed and tested. The experiments on several publicly available datasets prove the proposed model outperforms several relevant baseline domain adaptation methods.
Keyword ：
domain adaptation domain adaptation Classification Classification Costs Costs Manifolds Manifolds Data models Data models Adaptation models Adaptation models Computational modeling Computational modeling Task analysis Task analysis Transportation Transportation optimal transport optimal transport Grassmann manifolds Grassmann manifolds
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| GB/T 7714 | Long, Tianhang , Sun, Yanfeng , Gao, Junbin et al. Domain Adaptation as Optimal Transport on Grassmann Manifolds [J]. | IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS , 2022 , 34 (10) : 7196-7209 . |
| MLA | Long, Tianhang et al. "Domain Adaptation as Optimal Transport on Grassmann Manifolds" . | IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS 34 . 10 (2022) : 7196-7209 . |
| APA | Long, Tianhang , Sun, Yanfeng , Gao, Junbin , Hu, Yongli , Yin, Baocai . Domain Adaptation as Optimal Transport on Grassmann Manifolds . | IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS , 2022 , 34 (10) , 7196-7209 . |
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Abstract ：
Compared with natural images, underwater images are usually degraded with blur, scale variation, colour shift and texture distortion, which bring much challenge for computer vision tasks like object detection. In this case, generic object detection methods usually fail to achieve satisfactory performance. The main reason is considered that the current methods lack sufficient discriminativeness of feature representation for the degraded underwater images. A a novel multi-scale feature representation and interaction network for underwater object detection is proposed, in which two core modules are elaborately designed to enhance the discriminativeness of feature representation for underwater images. The first is the Context Integration Module, which extracts rich context information from high-level features and is integrated with the feature pyramid network to enhance the feature representation in a multi-scale way. The second is the Dual-refined Attention Interaction Module, which further enhances the feature representation by sufficient interactions between different levels of features both in channel and spatial domains based on attention mechanism. The proposed model is evaluated on four public underwater datasets. The experimental results compared with state-of-the-art object detection methods show that the proposed model has leading performance, which verifies that it is effective for underwater object detection. In addition, object detection experiments on a foggy dataset of Real-world Task-driven Testing Set (RTTS) and the natural image dataset of pattern analysis statistical modelling and computational learning, visual object classes (PASCAL VOC) are conducted. The results show that the proposed model can be applied on the degraded dataset of RTTS but fails on PASCAL VOC.
Keyword ：
convolutional neural nets convolutional neural nets object detection object detection computer vision computer vision
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| GB/T 7714 | Yuan, Jiaojiao , Hu, Yongli , Sun, Yanfeng et al. A multi-scale feature representation and interaction network for underwater object detection [J]. | IET COMPUTER VISION , 2022 , 17 (3) : 265-281 . |
| MLA | Yuan, Jiaojiao et al. "A multi-scale feature representation and interaction network for underwater object detection" . | IET COMPUTER VISION 17 . 3 (2022) : 265-281 . |
| APA | Yuan, Jiaojiao , Hu, Yongli , Sun, Yanfeng , Yin, Baocai . A multi-scale feature representation and interaction network for underwater object detection . | IET COMPUTER VISION , 2022 , 17 (3) , 265-281 . |
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