Hongmin Gao

92 papers C 1Misc 1Journal 85Unranked 5
YearRankTypeTitle / Venue / Authors
2026 J jnl
Adaptive multi-stage fusion of hyperspectral and LiDAR data via selective state space models.
Inf. Fusion
Yiyan Zhang, Hongmin Gao, Zhonghao Chen, Shuyu Fei, Jun Zhou, Pedram Ghamisi, Bing Zhang
2026 J jnl
Adaptive spectral-spatial feature fusion network for microscopic hyperspectral image segmentation.
Biomed. Signal Process. Control.
Min Zhu, Xueying Cao, Hongmin Gao, Peipei Xu
2026 J jnl
Complementary information-guided interactive fusion network for HSI and LiDAR data joint classification.
Expert Syst. Appl.
Shufang Xu, Qiyuan Xue, Zhonghao Chen, Shuyu Fei, Hongmin Gao
2026 J jnl
E-Mamba: Efficient Mamba network for hyperspectral and LiDAR joint classification.
Inf. Fusion
Yiyan Zhang, Hongmin Gao, Zhonghao Chen, Chenkai Zhang, Pedram Ghamisi, Bing Zhang
2025 J jnl
A Euclidean Affinity-Augmented Hyperbolic Neural Network for Semantic Segmentation of Remote Sensing Images.
IEEE Trans. Geosci. Remote. Sens.
Xin Li, Feng Xu, Fan Liu, Xin Lyu, Hongmin Gao, Jun Zhou, André Kaup
2025 J jnl
A Frequency Decoupling Network for Semantic Segmentation of Remote Sensing Images.
IEEE Trans. Geosci. Remote. Sens.
Xin Li, Feng Xu, Anzhu Yu, Xin Lyu, Hongmin Gao, Jun Zhou
2025 J jnl
A Parameter-Free Topological Disassembly-Guided Method for Hyperspectral Target Detection.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Xiaotong Sun, Liming Jiang, Lianru Gao, Hongmin Gao, Xu Sun, Bing Zhang
2025 — conf
A Path Planning Method for UAV Target Detection Based on Improved Genetic Algorithm.
ICCAI
Shufang Xu, Heng Li, Hongmin Gao
2025 J jnl
DDFformer: a dual-domain fused transformer for polyp segmentation.
J. Supercomput.
Yao Tong, Xi Yong, Jingchen Liang, Ziqi Chen, Yun Hu, Xin Li, Hongmin Gao, Zuojian Zhou, Kongfa Hu
2025 J jnl
DSSNet: An Anchor-Free Rotated Object Detection Network With Dynamic Sample Selection for Remote Sensing Images.
IET Image Process.
Longbao Wang, Yongheng Yu, Xiaoliang Luo, Lvchun Wang, Mu He, Yican Shen, Zhijun Zhou, Hongmin Gao
2025 J jnl
Dual-Feature Attention Hybrid GCN Mamba Network for Joint Hyperspectral and LiDAR Classification.
IEEE Trans. Geosci. Remote. Sens.
Zhenyang Xie, Li Lv, Hongmin Gao, Shufang Xu, Haihua Xie
2025 J jnl
Dual-domain decoupled fusion network for semantic segmentation of remote sensing images.
Inf. Fusion
Xin Li, Feng Xu, Jue Zhang, Anzhu Yu, Xin Lyu, Hongmin Gao, Jun Zhou
2025 J jnl
MDA-HTD: Mask-driven dual autoencoders meet hyperspectral target detection.
Inf. Process. Manag.
Zhonghao Chen, Hongmin Gao, Zhengtao Lu, Yiyan Zhang, Yao Ding, Xin Li, Bing Zhang
2025 J jnl
MKGFA: Multimodal Knowledge Graph Construction and Fact-Assisted Reasoning for VQA.
Int. J. Comput. Intell. Appl.
Longbao Wang, Jinhao Zhang, Libing Zhang, Shuai Zhang, Shufang Xu, Lin Yu, Hongmin Gao
2025 J jnl
Multiscale Segmentation-Guided Fusion Network for Hyperspectral Image Classification.
IEEE Trans. Image Process.
Hongmin Gao, Runhua Sheng, Yuanchao Su, Zhonghao Chen, Shufang Xu, Lianru Gao
2024 J jnl
A CBAM-GAN-based method for super-resolution reconstruction of remote sensing image.
IET Image Process.
Longbao Wang, Qing Yu, Xin Li, Hui Zeng, Hailong Zhang, Hongmin Gao
2024 J jnl
A Cross-Domain Coupling Network for Semantic Segmentation of Remote Sensing Images.
IEEE Geosci. Remote. Sens. Lett.
Xin Li, Feng Xu, Feifei Tao, Yao Tong, Hongmin Gao, Fan Liu, Ziqi Chen, Xin Lyu
2024 J jnl
A Frequency Domain Feature-Guided Network for Semantic Segmentation of Remote Sensing Images.
IEEE Signal Process. Lett.
Xin Li, Feng Xu, Hongmin Gao, Fan Liu, Xin Lyu
2024 J jnl
A Path Planning Method for Collaborative Coverage Monitoring in Urban Scenarios.
Remote. Sens.
Shufang Xu, Ziyun Zhou, Haiyun Liu, Xuejie Zhang, Jianni Li, Hongmin Gao
2024 J jnl
A Point-Set Topology-Based Information Entropy Estimation Method for Hyperspectral Target Detection.
IEEE Trans. Geosci. Remote. Sens.
Xiaotong Sun, Lina Zhuang, Lianru Gao, Hongmin Gao, Xu Sun, Bing Zhang
2024 J jnl
A Spatial-Spectrum Fully Attention Network for Band Selection of Hyperspectral Images.
IEEE Geosci. Remote. Sens. Lett.
Hongqi Zhang, Hongmin Gao, He Sun, Xu Sun, Bing Zhang
2024 J jnl
A Spectral-Spatial Context-Boosted Network for Semantic Segmentation of Remote Sensing Images.
Remote. Sens.
Xin Li, Xi Yong, Tao Li, Yao Tong, Hongmin Gao, Xinyuan Wang, Zhennan Xu, Yiwei Fang, Qian You, Xin Lyu
2024 J jnl
A cross-modal feature aggregation and enhancement network for hyperspectral and LiDAR joint classification.
Expert Syst. Appl.
Yiyan Zhang, Hongmin Gao, Jun Zhou, Chenkai Zhang, Pedram Ghamisi, Shufang Xu, Chenming Li, Bing Zhang
2024 J jnl
A dual-branch siamese spatial-spectral transformer attention network for Hyperspectral Image Change Detection.
Expert Syst. Appl.
Yiyan Zhang, Tingting Wang, Chenkai Zhang, Shufang Xu, Hongmin Gao, Chenming Li
2024 J jnl
Airborne Small Target Detection Method Based on Multimodal and Adaptive Feature Fusion.
IEEE Trans. Geosci. Remote. Sens.
Shufang Xu, Xu Chen, Haiwei Li, Tianci Liu, Zhonghao Chen, Hongmin Gao, Yiyan Zhang
2024 J jnl
CSFFNet: Lightweight cross-scale feature fusion network for salient object detection in remote sensing images.
IET Image Process.
Longbao Wang, Chong Long, Xin Li, Xiaodan Tang, Zhipeng Bai, Hongmin Gao
2024 J jnl
Cognitive Fusion of Graph Neural Network and Convolutional Neural Network for Enhanced Hyperspectral Target Detection.
IEEE Trans. Geosci. Remote. Sens.
Shufang Xu, Sijie Geng, Pengfei Xu, Zhonghao Chen, Hongmin Gao
2024 J jnl
Dual-Feature Attention-Based Contrastive Prototypical Clustering for Multimodal Remote Sensing Data.
IEEE Trans. Geosci. Remote. Sens.
Shufang Xu, Xinchen Ding, Yiyan Zhang, Zhen Zhang, Hongmin Gao, Bing Zhang
2024 J jnl
Hyperspectral Image Cross-Domain Object Detection Method based on Spectral-Spatial Feature Alignment.
CoRR
Hongqi Zhang, He Sun, Hongmin Gao, Feng Han, Xu Sun, Lianru Gao, Bing Zhang
2024 C conf
Information Entropy Estimation Based on Point-Set Topology for Hyperspectral Anomaly Detection.
IGARSS
Xiaotong Sun, Lina Zhuang, Lianru Gao, Hongmin Gao, Xu Sun, Yi Liu, Yao Liu, Bing Zhang
2024 J jnl
Information Entropy Estimation Based on Point-Set Topology for Hyperspectral Anomaly Detection.
IEEE Trans. Geosci. Remote. Sens.
Xiaotong Sun, Lina Zhuang, Lianru Gao, Hongmin Gao, Xu Sun, Bing Zhang
2024 J jnl
Interactive Enhanced Network Based on Multihead Self-Attention and Graph Convolution for Classification of Hyperspectral and LiDAR Data.
IEEE Trans. Geosci. Remote. Sens.
Hongmin Gao, Hao Feng, Yiyan Zhang, Shuyu Fei, Runhua Sheng, Shufang Xu, Bing Zhang
2024 J jnl
Multiscale Random-Shape Convolution and Adaptive Graph Convolution Fusion Network for Hyperspectral Image Classification.
IEEE Trans. Geosci. Remote. Sens.
Hongmin Gao, Runhua Sheng, Zhonghao Chen, Haiyun Liu, Shufang Xu, Bing Zhang
2024 J jnl
Rotated points for object detection in remote sensing images.
IET Image Process.
Longbao Wang, Yican Shen, Jin Yang, Hui Zeng, Hongmin Gao
2024 J jnl
Semi-supervised segmentation of hyperspectral pathological imagery based on shape priors and contrastive learning.
Biomed. Signal Process. Control.
Hongmin Gao, Huaiyuan Wang, Lanxin Chen, Xueying Cao, Min Zhu, Peipei Xu
2024 J jnl
Spectral-Spatial Out-of-Distribution-Based Unsupervised Band Selection Method for Hyperspectral Anomaly Detection.
IEEE Trans. Geosci. Remote. Sens.
Hongqi Zhang, He Sun, Xu Sun, Hongmin Gao, Lianru Gao, Bing Zhang
2024 J jnl
Strengthened Residual Graph and Multiscale Gated Guided Convolutional Fusion Network for Hyperspectral Change Detection.
IEEE Trans. Geosci. Remote. Sens.
Shufang Xu, Xiangfei Xia, Haiwei Li, Yiyan Zhang, Runhua Sheng, Hongmin Gao, Bing Zhang
2024 J jnl
TL2GH²T: Triple-Path Local-to-Global Network With Hybrid Head Transformer for Hyperspectral Change Detection.
IEEE Trans. Geosci. Remote. Sens.
Zhonghao Chen, Yuyang Wang, Swalpa Kumar Roy, Hongmin Gao, Yao Ding, Xiongwu Xiao, Zhenfeng Shao, Bing Zhang
2023 — conf
A Method and System for Power Grid Engineering Error Diagnosis Based on Improved Graph Convolutional Networks.
CISP-BMEI
Shoukui Zhang, Hongmin Gao, Xin Shan, Haiwei Wu, Shiming Sun
2023 J jnl
A Multidepth and Multibranch Network for Hyperspectral Target Detection Based on Band Selection.
IEEE Trans. Geosci. Remote. Sens.
Hongmin Gao, Yitong Zhang, Zhonghao Chen, Shufang Xu, Danfeng Hong, Bing Zhang
2023 J jnl
A high-level feature channel attention UNet network for cholangiocarcinoma segmentation from microscopy hyperspectral images.
Mach. Vis. Appl.
Hongmin Gao, Mengran Yang, Xueying Cao, Qin Liu, Peipei Xu
2023 J jnl
AMSSE-Net: Adaptive Multiscale Spatial-Spectral Enhancement Network for Classification of Hyperspectral and LiDAR Data.
IEEE Trans. Geosci. Remote. Sens.
Hongmin Gao, Hao Feng, Yiyan Zhang, Shufang Xu, Bing Zhang
2023 J jnl
Adaptively Dictionary Construction for Hyperspectral Target Detection.
IEEE Geosci. Remote. Sens. Lett.
Chenming Li, Weibo Zhang, Yiyan Zhang, Zhonghao Chen, Hongmin Gao
2023 J jnl
Anomaly Detection Based on Tree Topology for Hyperspectral Images.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Xiaotong Sun, Bing Zhang, Lina Zhuang, Hongmin Gao, Xu Sun, Li Ni
2023 J jnl
Depthwise Separable Convolutional Autoencoders for Hyperspectral Image Change Detection.
IEEE Geosci. Remote. Sens. Lett.
Yiyan Zhang, Yongfeng Zhou, Shufang Xu, Danfeng Hong, Hongmin Gao, Chenming Li, Qiqiang Zhong, Bing Zhang
2023 J jnl
Grid Network: Feature Extraction in Anisotropic Perspective for Hyperspectral Image Classification.
IEEE Geosci. Remote. Sens. Lett.
Zhonghao Chen, Danfeng Hong, Hongmin Gao
2023 — conf
Hyperspectral Image Classification Method Based on Narrowing Semantic Gap Convolutional Neural Network.
WHISPERS
Shufang Xu, Sijie Geng, Tingting Fan, Chenming Li, Hongmin Gao
2023 J jnl
Hyperspectral Target Detection via Spectral Aggregation and Separation Network With Target Band Random Mask.
IEEE Trans. Geosci. Remote. Sens.
Hongmin Gao, Yitong Zhang, Zhonghao Chen, Feng Xu, Danfeng Hong, Bing Zhang
2023 J jnl
Information Retrieval With Chessboard-Shaped Topology for Hyperspectral Target Detection.
IEEE Trans. Geosci. Remote. Sens.
Xiaotong Sun, Lina Zhuang, Lianru Gao, Hongmin Gao, Xu Sun, Bing Zhang
2023 J jnl
LWCCNet: Lightweight Remote Sensing Change Detection Network Based on Composite Convolution Operator.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Longbao Wang, Dongyu Gao, Xin Li, Xiaodan Tang, Xinyi Zhao, Hongmin Gao
2023 J jnl
Local aggregation and global attention network for hyperspectral image classification with spectral-induced aligned superpixel segmentation.
Expert Syst. Appl.
Zhonghao Chen, Guoyong Wu, Hongmin Gao, Yao Ding, Danfeng Hong, Bing Zhang
2023 J jnl
Multimodal Transformer Network for Hyperspectral and LiDAR Classification.
IEEE Trans. Geosci. Remote. Sens.
Yiyan Zhang, Shufang Xu, Danfeng Hong, Hongmin Gao, Chenkai Zhang, Meiqiao Bi, Chenming Li
2023 J jnl
SSCNet: A Spectrum-Space Collaborative Network for Semantic Segmentation of Remote Sensing Images.
Remote. Sens.
Xin Li, Feng Xu, Xi Yong, Deqing Chen, Runliang Xia, Baoliu Ye, Hongmin Gao, Ziqi Chen, Xin Lyu
2023 J jnl
Semi-supervised enhanced discriminative local constraint preserving projection for dimensionality reduction of medical hyperspectral images.
Comput. Biol. Medicine
Hongmin Gao, Mengran Yang, Xueying Cao, Qin Liu, Peipei Xu
2023 J jnl
Unsupervised dimensionality reduction of medical hyperspectral imagery in tensor space.
Comput. Methods Programs Biomed.
Hongmin Gao, Meiling Wang, Xinyu Sun, Xueying Cao, Chenming Li, Qin Liu, Peipei Xu
2022 — conf
A learning rate optimization method for model convergence of hyperspectral image classification.
CISP-BMEI
Chenming Li, Sikang Yao, Hongmin Gao, Yunfei Zhang
2022 J jnl
Adaptive spectral-spatial feature fusion network for hyperspectral image classification using limited training samples.
Int. J. Appl. Earth Obs. Geoinformation
Hongmin Gao, Zhonghao Chen, Feng Xu
2022 — conf
Exploring the Collaboration Between Convolutional Neural Networks and Transformers in Hyperspectral Image Classification.
WHISPERS
Hongmin Gao, Yiyan Zhang, Zhonghao Chen, Hongyi Wu, Weibo Zhang, Chenming Li
2022 J jnl
Global to Local: A Hierarchical Detection Algorithm for Hyperspectral Image Target Detection.
IEEE Trans. Geosci. Remote. Sens.
Zhonghao Chen, Zhengtao Lu, Hongmin Gao, Yiyan Zhang, Jia Zhao, Danfeng Hong, Bing Zhang
2022 J jnl
Multiscale spectral-spatial cross-extraction network for hyperspectral image classification.
IET Image Process.
Hongmin Gao, Hongyi Wu, Zhonghao Chen, Yunfei Zhang, Yiyan Zhang, Chenming Li
2022 J jnl
Shallow Network Based on Depthwise Overparameterized Convolution for Hyperspectral Image Classification.
IEEE Geosci. Remote. Sens. Lett.
Hongmin Gao, Zhonghao Chen, Chenming Li
2021 J jnl
A Multiscale Dual-Branch Feature Fusion and Attention Network for Hyperspectral Images Classification.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Hongmin Gao, Yiyan Zhang, Zhonghao Chen, Chenming Li
2021 J jnl
Densely Connected Multiscale Attention Network for Hyperspectral Image Classification.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Hongmin Gao, Yawen Miao, Xueying Cao, Chenming Li
2021 J jnl
Dynamic Data Augmentation Method for Hyperspectral Image Classification Based on Siamese Structure.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Hongmin Gao, Junpeng Zhang, Xueying Cao, Zhonghao Chen, Yiyan Zhang, Chenming Li
2021 J jnl
Hierarchical Shrinkage Multiscale Network for Hyperspectral Image Classification With Hierarchical Feature Fusion.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Hongmin Gao, Zhonghao Chen, Chenming Li
2021 J jnl
Hybridizing Cross-Level Contextual and Attentive Representations for Remote Sensing Imagery Semantic Segmentation.
Remote. Sens.
Xin Li, Feng Xu, Runliang Xia, Xin Lyu, Hongmin Gao, Yao Tong
2021 J jnl
Multiscale Residual Network With Mixed Depthwise Convolution for Hyperspectral Image Classification.
IEEE Trans. Geosci. Remote. Sens.
Hongmin Gao, Yao Yang, Chenming Li, Lianru Gao, Bing Zhang
2021 J jnl
Sandwich Convolutional Neural Network for Hyperspectral Image Classification Using Spectral Feature Enhancement.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.
Hongmin Gao, Zhonghao Chen, Chenming Li
2021 J jnl
Shallow Network Based on Depthwise Over-Parameterized Convolution for Hyperspectral Image Classification.
CoRR
Hongmin Gao, Zhonghao Chen, Chenming Li
2020 J jnl
An Efficient Building Extraction Method from High Spatial Resolution Remote Sensing Images Based on Improved Mask R-CNN.
Sensors
Lili Zhang, Jisen Wu, Yu Fan, Hongmin Gao, Yehong Shao
2020 J jnl
Composite Clustering Sampling Strategy for Multiscale Spectral-Spatial Classification of Hyperspectral Images.
J. Sensors
Chenming Li, Xiaoyu Qu, Yao Yang, Dan Yao, Hongmin Gao, Zaijun Hua
2020 J jnl
Multiscale 3-D-CNN based on spatial-spectral joint feature extraction for hyperspectral remote sensing images classification.
J. Electronic Imaging
Hongmin Gao, Dan Yao, Yao Yang, Chenming Li, Haiyun Liu, Zaijun Hua
2020 J jnl
Spatial-temporal multi-task learning for salient region detection.
Pattern Recognit. Lett.
Zhe Chen, Ruili Wang, Ming Yu, Hongmin Gao, Qi Li, Huibin Wang
2020 J jnl
Underwater salient object detection by combining 2D and 3D visual features.
Neurocomputing
Zhe Chen, Hongmin Gao, Zhen Zhang, Helen Zhou, Xun Wang, Yan Tian
2019 J jnl
A Hyperspectral Image Classification Method Based on Multi-Discriminator Generative Adversarial Networks.
Sensors
Hongmin Gao, Dan Yao, Mingxia Wang, Chenming Li, Haiyun Liu, Zaijun Hua, Jiawei Wang
2019 J jnl
Application of Hyperspectral Image Classification Based on Overlap Pooling.
Neural Process. Lett.
Hongmin Gao, Shuo Lin, Chenming Li, Yao Yang
2019 J jnl
Convolutional neural network for spectral-spatial classification of hyperspectral images.
Neural Comput. Appl.
Hongmin Gao, Yao Yang, Chenming Li, Xiaoke Zhang, Jia Zhao, Dan Yao
2019 J jnl
Deep Belief Network for Spectral-Spatial Classification of Hyperspectral Remote Sensor Data.
Sensors
Chenming Li, Yongchang Wang, Xiaoke Zhang, Hongmin Gao, Yao Yang, Jiawei Wang
2019 J jnl
Dimension Reduction for Hyperspectral Remote Sensor Data Based on Multi-Objective Particle Swarm Optimization Algorithm and Game Theory.
Sensors
Hongmin Gao, Yao Yang, Xiaoke Zhang, Chenming Li, Qi Yang, Yongchang Wang
2019 J jnl
High-Resolution Remote Sensing Image Segmentation method based on Srelu.
Int. J. Robotics Autom.
Chenming Li, Xiaoyu Qu, Yao Yang, Hongmin Gao, Yongchang Wang, Dan Yao, Wenjing Yuan
2019 J jnl
Hyperspectral Image Classification With Pre-Activation Residual Attention Network.
IEEE Access
Hongmin Gao, Yao Yang, Dan Yao, Chenming Li
2019 J jnl
Multi-branch fusion network for hyperspectral image classification.
Knowl. Based Syst.
Hongmin Gao, Yao Yang, Sheng Lei, Chenming Li, Hui Zhou, Xiaoyu Qu
2019 J jnl
Segmentation method of High-Resolution Remote Sensing Image for Fast target Recognition.
Int. J. Robotics Autom.
Chenming Li, Hongmin Gao, Yao Yang, Xiaoyu Qu, Wenjing Yuan
2018 J jnl
A Band Selection Method for Hyperspectral Image Based on Particle Swarm Optimization Algorithm with Dynamic Sub-Swarms.
J. Signal Process. Syst.
Mengxi Xu, Jianqiang Shi, Wei Chen, Jie Shen, Hongmin Gao, Jia Zhao
2018 J jnl
Convolution Neural Network Based on Two-Dimensional Spectrum for Hyperspectral Image Classification.
J. Sensors
Hongmin Gao, Shuo Lin, Yao Yang, Chenming Li, Mingxiang Yang
2018 J jnl
Domain Adaptation and Adaptive Information Fusion for Object Detection on Foggy Days.
Sensors
Zhe Chen, Xiaofang Li, Hao Zheng, Hongmin Gao, Huibin Wang
2018 J jnl
Grey Model Optimized by Particle Swarm Optimization for Data Analysis and Application of Multi-Sensors.
Sensors
Chenming Li, Hongmin Gao, Junlin Qiu, Yao Yang, Xiaoyu Qu, Yongchang Wang, Zhuqing Bi
2018 J jnl
Hyperspectral Remote Sensing Image Classification Based on Maximum Overlap Pooling Convolutional Neural Network.
Sensors
Chenming Li, Simon X. Yang, Yao Yang, Hongmin Gao, Jia Zhao, Xiaoyu Qu, Yongchang Wang, Dan Yao, Jianbing Gao
2018 J jnl
Joint Alternate Small Convolution and Feature Reuse for Hyperspectral Image Classification.
ISPRS Int. J. Geo Inf.
Hongmin Gao, Yao Yang, Chenming Li, Hui Zhou, Xiaoyu Qu
2017 J jnl
Research on Fault Diagnosis for Pumping Station Based on T-S Fuzzy Fault Tree and Bayesian Network.
J. Electr. Comput. Eng.
Zhuqing Bi, Chenming Li, Xujie Li, Hongmin Gao
2014 J jnl
Fusion Method for Remote Sensing Image Based on Fuzzy Integral.
J. Electr. Comput. Eng.
Hui Zhou, Hongmin Gao
2013 Misc conf
A method of hyperspectral image classification based on posterior probability SVM and MRF.
ICMLC
Hongmin Gao, Mengxi Xu, Ming-Gang Xu, Xin Wang, Fengchen Huang