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Chao Wu

Publication record assembled from the DBLP archive of ranked conferences.

Papers indexed

120

Venues

66

Active years

2006–2026

Best venue rank

A*

Where they publish

Papers

120 indexed papers, newest first.

YearVenueTitleAuthors
2026AAAIEditing as Unlearning: Are Knowledge Editing Methods Strong Baselines for Large Language Model Unlearning?Zexi Li, Xiangzhu Wang, William F. Shen, Meghdad Kurmanji, Xinchi Qiu, Dongqi Cai, Chao Wu, Nicholas D. Lane
2026ACLTrust Within? Seek Beyond? Knowledge Boundary Aware Policy Optimization for Agentic Search.Tao Feng, Xinke Jiang, Xinyan Hu, Yonggang Zhang, Zhen Tao, Wentao Zhang, Boyang Liu, Wenhao Jiang, Chao Wu
2025ACLRewrite to Jailbreak: Discover Learnable and Transferable Implicit Harmfulness Instruction.Yuting Huang, Chengyuan Liu, Yifeng Feng, Yiquan Wu, Chao Wu, Fei Wu, Kun Kuang
2025FASTMedFS: Pursuing Low Update Overhead via Metadata-Enabled Delta Compression for Log-structured File System on Mobile Device.Chao Wu, Cheng Ji, Li-Pin Chang, Zongwei Zhu, Congming Gao, Weichao Guo, Chao Yu, Yanzhi Wang
2025GLOBECOMAttention-Enhanced Multi-Task Learning for Multi-Dimensional QoE Prediction in Image Semantic Communication Systems.Yangfei Lin, Chao Wu, Celimuge Wu, Lei Zhong
2025ICCADSquat: Quant Small Language Models on the Edge.Xuan Shen, Peiyan Dong, Zhenglun Kong, Yifan Gong, Changdi Yang, Zhaoyang Han, Yanyue Xie, Lei Lu, Cheng Lyu, Chao Wu, Yanzhi Wang, Pu Zhao
2025ICCVYou are Your Own Best Teacher: Achieving Centralized-level Performance in Federated Learning under Heterogeneous and Long-Tailed Data.Shanshan Yan, Zexi Li, Chao Wu, Meng Pang, Yang Lu, Yan Yan, Hanzi Wang
2025ICLRDynamic Neural Fortresses: An Adaptive Shield for Model Extraction Defense.Siyu Luan, Zhenyi Wang, Li Shen, Zonghua Gu, Chao Wu, Dacheng Tao
2025ICLRREMEDY: Recipe Merging Dynamics in Large Vision-Language Models.Didi Zhu, Yibing Song, Tao Shen, Ziyu Zhao, Jinluan Yang, Min Zhang, Chao Wu
2025ICPADSPQC-LLM: Post-Quantization Delta Compression for LLMs.Yujin Zhong, Chao Wu, Cheng Ji
2025IJCAILeveraging Pretrained Diffusion Models for Zero-Shot Part Assembly.Ruiyuan Zhang, Qi Wang, Jiaxiang Liu, Yuchi Huo, Chao Wu
2025KDDFedGuCci: Making Local Models More Connected in Landscape for Federated Learning.Zexi Li, Jie Lin, Zhiqi Li, Didi Zhu, Tao Shen, Tao Lin, Chao Wu, Nicholas D. Lane
2025MICCAINoise-Robust Tuning of SAM for Domain Generalized Ultrasound Image Segmentation.Zhikai Wei, Chao Wu, Hanyu Du, Rui Yu, Bo Du, Yongchao Xu
2025NetworkingTPOTI: A Triplet-Network-based Obfuscated Tor Traffic Identification.Menglei Li, Chao Wu, Wentian Zhao, Tian Song
2025SMCA Retrieval Filtering and Thought Enhancement Framework for Function-Level Code Generation Based on Large Language Model.Chao Wu, Pusheng Zhang, Xuesong Jiang, Song Liu
2024AAAIAgile-Quant: Activation-Guided Quantization for Faster Inference of LLMs on the Edge.Xuan Shen, Peiyan Dong, Lei Lu, Zhenglun Kong, Zhengang Li, Ming Lin, Chao Wu, Yanzhi Wang
2024AAAIScalable Geometric Fracture Assembly via Co-creation Space among Assemblers.Ruiyuan Zhang, Jiaxiang Liu, Zexi Li, Hao Dong, Jie Fu, Chao Wu
2024CSCWDCross-timestep Fault Prediction with Imbalanced Data for Optical Modules in Internet Data Centers.Zuxu Pei, Tian Song, Chao Wu, Shuye Yue, Yan Li, Xiangtao Hu
2024CVPRDistributionally Generative Augmentation for Fair Facial Attribute Classification.Fengda Zhang, Qianpei He, Kun Kuang, Jiashuo Liu, Long Chen, Chao Wu, Jun Xiao, Hanwang Zhang
2024DACLOTUS: learning-based online thermal and latency variation management for two-stage detectors on edge devices.Yifan Gong, Yushu Wu, Zheng Zhan, Pu Zhao, Liangkai Liu, Chao Wu, Xulong Tang, Yanzhi Wang
2024DATEDACO: Pursuing Ultra-low Power Consumption via DNN-Adaptive CPU-GPU CO-optimization on Mobile Devices.Yushu Wu, Chao Wu, Geng Yuan, Yanyu Li, Weichao Guo, Jing Rao, Xipeng Shen, Bin Ren, Yanzhi Wang
2024DATESuperFlow: A Fully-Customized RTL-to-GDS Design Automation Flow for Adiabatic Quantum- Flux - Parametron Superconducting Circuits.Yanyue Xie, Peiyan Dong, Geng Yuan, Zhengang Li, Masoud Zabihi, Chao Wu, Sung-En Chang, Xufeng Zhang, Xue Lin, Caiwen Ding, Nobuyuki Yoshikawa, Olivia Chen, Yanzhi Wang
2024EMNLPMore Than Catastrophic Forgetting: Integrating General Capabilities For Domain-Specific LLMs.Chengyuan Liu, Yangyang Kang, Shihang Wang, Lizhi Qing, Fubang Zhao, Chao Wu, Changlong Sun, Kun Kuang, Fei Wu
2024ICASSPGeneralizable Two-Branch Framework for Image Class-Incremental Learning.Chao Wu, Xiaobin Chang, Ruixuan Wang
2024ICCADAyE-Edge: Automated Deployment Space Search Empowering Accuracy yet Efficient Real-Time Object Detection on the Edge.Chao Wu, Yifan Gong, Liangkai Liu, Mengquan Li, Yushu Wu, Xuan Shen, Zhimin Li, Geng Yuan, Weisong Shi, Yanzhi Wang
2024ICDEFrom Chaos to Clarity: Time Series Anomaly Detection in Astronomical Observations.Xinli Hao, Yile Chen, Chen Yang, Zhihui Du, Chaohong Ma, Chao Wu, Xiaofeng Meng
2024ICLRWaxing-and-Waning: a Generic Similarity-based Framework for Efficient Self-Supervised Learning.Sheng Li, Chao Wu, Ao Li, Yanzhi Wang, Xulong Tang, Geng Yuan
2024ICMLModel Tailor: Mitigating Catastrophic Forgetting in Multi-modal Large Language Models.Didi Zhu, Zhongyi Sun, Zexi Li, Tao Shen, Ke Yan, Shouhong Ding, Chao Wu, Kun Kuang
2024IJCNNForecasting Distillation: Enhancing 3D Human Motion Prediction with Guidance Regularization.Yawen Du, Zhihao Wang, Yinming Li, Xiaosong Yang, Chao Wu, Zhao Wang
2024IJCNNFeature Transformation for Few-Shot Learning.Peizheng Wang, Qifei Zhang, Jie Zhang, Gang Li, Chao Wu
2024KDDNeural Collapse Anchored Prompt Tuning for Generalizable Vision-Language Models.Didi Zhu, Zexi Li, Min Zhang, Junkun Yuan, Jiashuo Liu, Kun Kuang, Chao Wu
2024SMCA Collaborative Heterogeneous Graph Neural Network for Personalized News Recommendation.Chenglong Shi, Haibin Geng, Wenfeng Jiang, Jinbao Li, Chao Wu, Song Liu
2024SCNClient-Aided Privacy-Preserving Machine Learning.Peihan Miao, Xinyi Shi, Chao Wu, Ruofan Xu
2023AAAIDelving into the Adversarial Robustness of Federated Learning.Jie Zhang, Bo Li, Chen Chen, Lingjuan Lyu, Shuang Wu, Shouhong Ding, Chao Wu
2023BMVCScore-PA: Score-based 3D Part Assembly.Junfeng Cheng, Mingdong Wu, Ruiyuan Zhang, Guanqi Zhan, Chao Wu, Hao Dong
2023CSCWDTFSF: Topological and Feature Space Fusion with Spatio-Temporal Modeling for Crop Yield Prediction.Shifeng Xu, Yijing Zhou, Xiaoyang Yu, Cuiting Huang, Chao Wu
2023DACCondense: A Framework for Device and Frequency Adaptive Neural Network Models on the Edge.Yifan Gong, Pu Zhao, Zheng Zhan, Yushu Wu, Chao Wu, Zhenglun Kong, Minghai Qin, Caiwen Ding, Yanzhi Wang
2023DACRLAlloc: A Deep Reinforcement Learning-Assisted Resource Allocation Framework for Enhanced Both I/O Throughput and QoS Performance of Multi-Streamed SSDs.Mengquan Li, Chao Wu, Congming Gao, Cheng Ji, Kenli Li
2023ICASSPSEPDIFF: Speech Separation Based on Denoising Diffusion Model.Bo Chen, Chao Wu, Wenbin Zhao
2023ICCADMOC: Multi-Objective Mobile CPU-GPU Co-Optimization for Power-Efficient DNN Inference.Yushu Wu, Yifan Gong, Zheng Zhan, Geng Yuan, Yanyu Li, Qi Wang, Chao Wu, Yanzhi Wang
2023ICCVNo Fear of Classifier Biases: Neural Collapse Inspired Federated Learning with Synthetic and Fixed Classifier.Zexi Li, Xinyi Shang, Rui He, Tao Lin, Chao Wu
2023ICCVUniversal Domain Adaptation via Compressive Attention Matching.Didi Zhu, Yinchuan Li, Junkun Yuan, Zexi Li, Kun Kuang, Chao Wu
2023ICDCSThe Metaverse: Exploring the Convergence of Technologies and Social Dynamics.Chao Wu, Yujia Li
2023ICIPTarget-Discriminability-Induced Multi-Source-Free Domain Adaptation.Gang Li, Qifei Zhang, Peizheng Wang, Rui He, Chao Wu
2023ICLRFairness-aware Contrastive Learning with Partially Annotated Sensitive Attributes.Fengda Zhang, Kun Kuang, Long Chen, Yuxuan Liu, Chao Wu, Jun Xiao
2023ICMLRevisiting Weighted Aggregation in Federated Learning with Neural Networks.Zexi Li, Tao Lin, Xinyi Shang, Chao Wu
2023ICONIPPoShapley-BCFL: A Fair and Robust Decentralized Federated Learning Based on Blockchain and the Proof of Shapley-Value.Ziwen Cheng, Yi Liu, Chao Wu, Yongqi Pan, Liushun Zhao, Cheng Zhu
2023IJCNNTransformer-Based Multi-Source Domain Adaptation Without Source Data.Gang Li, Chao Wu
2023SIGIREdge-cloud Collaborative Learning with Federated and Centralized Features.Zexi Li, Qunwei Li, Yi Zhou, Wenliang Zhong, Guannan Zhang, Chao Wu
2023TrustComA Big Data Sharing Architecture Based on Federal Learning in State Grid.Liu Na, Rui Yang, Zhicheng Zang, Yu Wang, Chao Wu, Xiaofei Li, Zhendong Li, Meng Li
2022ACCVSGW-Based Multi-task Learning in Vision Tasks.Ruiyuan Zhang, Yuyao Chen, Jiaxiang Liu, Dianbing Xi, Yuchi Huo, Jie Liu, Chao Wu
2022CVPRTowards Efficient Data Free Blackbox Adversarial Attack.Jie Zhang, Bo Li, Jianghe Xu, Shuang Wu, Shouhong Ding, Lei Zhang, Chao Wu
2022CVPRCamera-Conditioned Stable Feature Generation for Isolated Camera Supervised Person Re-IDentification.Chao Wu, Wenhang Ge, Ancong Wu, Xiaobin Chang
2022ICASSPPrior-Bert and Multi-Task Learning for Target-Aspect-Sentiment Joint Detection.Cai Ke, Qingyu Xiong, Chao Wu, Zikai Liao, Hualing Yi
2022ICCADAll-in-One: A Highly Representative DNN Pruning Framework for Edge Devices with Dynamic Power Management.Yifan Gong, Zheng Zhan, Pu Zhao, Yushu Wu, Chao Wu, Caiwen Ding, Weiwen Jiang, Minghai Qin, Yanzhi Wang
2022ICIPAdversarial Examples for Good: Adversarial Examples Guided Imbalanced Learning.Jie Zhang, Lei Zhang, Gang Li, Chao Wu
2022ICMLFederated Learning with Label Distribution Skew via Logits Calibration.Jie Zhang, Zhiqi Li, Bo Li, Jianghe Xu, Shuang Wu, Shouhong Ding, Chao Wu
2022ICSESoftware Engineers' Response to Public Crisis: Lessons Learnt from Spontaneously Building an Informative COVID-19 Dashboard.Han Wang, Chao Wu, Chunyang Chen, Burak Turhan, Shiping Chen, Jon Whittle
2022KDDS2RL: Do We Really Need to Perceive All States in Deep Multi-Agent Reinforcement Learning?Shuang Luo, Yinchuan Li, Jiahui Li, Kun Kuang, Furui Liu, Yunfeng Shao, Chao Wu
2022NOMSFault Report Generation for ICT Systems by Jointly Learning Time-series and Text Data.Nobukazu Fukuda, Chao Wu, Shingo Horiuchi, Kenichi Tayama
2022SEKEA Node-Merging based Approach for Generating iStar Models from User Stories (ADPBD).Chao Wu, Chunhui Wang, Tong Li, Ye Zhai
2021AAAIWeb-based Platform for K-12 AI Education in China.Chao Wu, Yan Li, Junxiang Li, Qiongdan Zhang, Fei Wu
2021DEXAEvaluate the Contribution of Multiple Participants in Federated Learning.Zhaoyang You, Xinya Wu, Kexuan Chen, Xinyi Liu, Chao Wu
2021FASTPattern-Guided File Compression with User-Experience Enhancement for Log-Structured File System on Mobile Devices.Cheng Ji, Li-Pin Chang, Riwei Pan, Chao Wu, Congming Gao, Liang Shi, Tei-Wei Kuo, Chun Jason Xue
2021ICMLKD3A: Unsupervised Multi-Source Decentralized Domain Adaptation via Knowledge Distillation.Haozhe Feng, Zhaoyang You, Minghao Chen, Tianye Zhang, Minfeng Zhu, Fei Wu, Chao Wu, Wei Chen
2021IECONComparison of DC-link Voltage Control Schemes on Grid-side and Machine-side for Type-4 Wind Generation System Under Weak Grid.Liang Huang, Chao Wu, Dao Zhou, Frede Blaabjerg
2021ISPAA High Performance Computing Method for Noise Cross-Correlation Functions of Seismic Data.Junwei Zhou, Qian Wei, Chao Wu, Guangzhong Sun
2020IJCNNMulti-modal cyberbullying detection on social networks.Kaige Wang, Qingyu Xiong, Chao Wu, Min Gao, Yang Yu
2020QRSInterpretable Test Case Recommendation based on Knowledge Graph.Wenjun Ke, Chao Wu, Xiufeng Fu, Chen Gao, Yinyi Song
2019CloudComA Resource Design Framework to Realize Intent-Based Cloud Management.Chao Wu, Shingo Horiuchi, Kenichi Tayama
2019HPCCResearch on Water Quality Prediction Based on SARIMA-LSTM: A Case Study of Beilun Estuary.Rui Xu, Qingyu Xiong, Hualing Yi, Chao Wu, Jianxin Ye
2019ICANNGenerative Creativity: Adversarial Learning for Bionic Design.Simiao Yu, Hao Dong, Pan Wang, Chao Wu, Yike Guo
2019ICDESciDetector: Scientific Event Discovery by Tracking Variable Source Data Streaming.Zhiqiang Duan, Chen Yang, Xiaofeng Meng, Yongjie Du, Jiaming Qiu, Xiaobin Ma, Zhihui Du, Xukang Zhang, Baoning Niu, Chao Wu
2019ICIPSIMGAN: Photo-Realistic Semantic Image Manipulation Using Generative Adversarial Networks.Simiao Yu, Hao Dong, Felix Liang, Yuanhan Mo, Chao Wu, Yike Guo
2018CASESMaximizing I/O throughput and minimizing performance variation via reinforcement learning based I/O merging for SSDs: work-in-progress.Chao Wu, Cheng Ji, Qiao Li, Chenchen Fu, Chun Jason Xue
2018ICA3PPAccelerating Low-End Edge Computing with Cross-Kernel Functionality Abstraction.Chao Wu, Yaoxue Zhang, Yuezhi Zhou, Qiushi Li
2018ICCSE-Zone: A Faster Neighbor Point Query Algorithm for Matching Spacial Objects.Xiaobin Ma, Zhihui Du, Yankui Sun, Yuan Bai, Suping Wu, Andrei Tchernykh, Yang Xu, Chao Wu, Jianyan Wei
2018ICINIntent-based cloud service management.Chao Wu, Shingo Horiuchi
2018KDDDeep Sequence Learning with Auxiliary Information for Traffic Prediction.Binbing Liao, Jingqing Zhang, Chao Wu, Douglas McIlwraith, Tong Chen, Shengwen Yang, Yike Guo, Fei Wu
2018UICDeep Collaborative Filtering Incorporating Auxiliary Multi-Media Information.Shuang Li, Yanghui Yan, Chao Wu, Kaichuan Zhao, Yuezhi Zhou, Yaoxue Zhang
2017ICCVSemantic Image Synthesis via Adversarial Learning.Hao Dong, Simiao Yu, Chao Wu, Yike Guo
2017INFOCOMButterFly: Mobile collaborative rendering over GPU workload migration.Chao Wu, Yaoxue Zhang, Lan Zhang, Bowen Yang, Xu Chen, Wenwu Zhu, Lili Qiu
2017ISCASA power minimized 74 fJ/conversion-step 88.6 dB SNR incremental ΣΔ ADC with an asynchronous SAR quantizer.Saqib Mohamad, Chao Wu, Jie Yuan, Amine Bermak
2017IECONGPIO based backstepping control for electronic throttle.Ke Shi, Zuo Wang, Chao Wu, Shihua Li
2017IECONWater flow forecasting of underwater vehicle based on LDA compressed sensing.Nailong Wu, Tong Ge, Chao Wu, Deqing Yang, Rui Yang
2017IECONCurrent control of IPMSM servo system in field-weakening region via DOB-based model predictive control.Chao Wu, Shihua Li, Qi Li, Wei Xing Zheng
2016DASFAAGenerating Computational Taxonomy for Business Models of the Digital Economy.Chao Wu, Yi Cai, Mei Zhao, Songping Huang, Yike Guo
2016EMSOFTI/O scheduling with mapping cache awareness for flash based storage systems.Cheng Ji, Chao Wu, Li-Pin Chang, Liang Shi, Chun Jason Xue
2016GLOBECOMCoCo (Context vs. Content): Behavior-Inspired Social Media Recommendation for Mobile Apps.Bowen Yang, Chao Wu, Stephan Sigg, Yaoxue Zhang
2016INFOCOMSpice: Socially-driven learning-based mobile media prefetching.Chao Wu, Xu Chen, Yuezhi Zhou, Ningyuan Li, Xiaoming Fu, Yaoxue Zhang
2016InterspeechA Robust Dual-Microphone Speech Source Localization Algorithm for Reverberant Environments.Yanmeng Guo, Xiaofei Wang, Chao Wu, Qiang Fu, Ning Ma, Guy J. Brown
2016ISCASA 7 bit 800MS/S SAR ADC with background offset calibration.Chao Wu, Jie Yuan
2015IGARSSMultilayer simulations for Martian subsurface radar soundings.Chao Wu, Liting Rao, Xiaojuan Zhang, Jiancheng Shi, Shiyin Liu
2014IGARSSRadar signal simulation on investigation of subsurface structure by radar ice depth sounder.Chao Wu, Xiaojuan Zhang, Jiancheng Shi, Shiyin Liu
2014IGARSSHigh-order small perturbation method for scattering from layered structure with multilayer rough interfaces.Chao Wu, Liting Rao, Youcheng Wang, Xiaojuan Zhang
2014InterspeechA robust step-size control algorithm for frequency domain acoustic echo cancellation.Chao Wu, Kaiyu Jiang, Yanmeng Guo, Qiang Fu, Yonghong Yan
2014WISEMobile Web User Behavior Modeling.Bozhi Yuan, Bin Xu, Chao Wu, Yuanchao Ma
2013CISISResearch on Task Allocation Strategy and Scheduling Algorithm of Multi-core Load Balance.Chao Wu, Yifu Wang, Aoyang Zhao, Tie Qiu
2013GLOBECOMA transparent solution for legacy applications between heterogeneous networks.Dujuan Gu, Xiaohan Liu, Chao Wu, Gang Qin, Ze Luo, Baoping Yan
2013ICDMA Biclustering Algorithm to Discover Functional Modules from ENCODE ChIP-Seq Data.Chao Wu, Arjun Bakshi, Bruce J. Aronow, Anil G. Jegga, Raj Bhatnagar
2013IGARSSNew advances in electromagnetic scattering and inverse scattering from subsurface profiles.Chao Wu, Liting Rao, Shuai Cui, Youcheng Wang, Xiaojuan Zhang, Guangyou Fang
2013MobiquitousSensor Deployment in Bayesian Compressive Sensing Based Environmental Monitoring.Chao Wu, Di Wu, Shulin Yan, Yike Guo
2012AINAElastic Application Container: A Lightweight Approach for Cloud Resource Provisioning.Sijin He, Li Guo, Yike Guo, Chao Wu, Moustafa Ghanem, Rui Han
2012ICSoftA New Paradigm for Web App Development, Deployment, Distribution, and Collaboration.Chao Wu, Yike Guo
2012ISCASA 12-bit, 270MS/s pipelined ADC with SHA-eliminating front end.Xuan Wang, Changyi Yang, Xiaoxiao Zhao, Chao Wu, Fule Li, Zhihua Wang, Bin Wu
2012NDSSDiscovering Semantic Data of Interest from Un-mappable Memory with Confidence.Zhiqiang Lin, Junghwan Rhee, Chao Wu, Xiangyu Zhang, Dongyan Xu
2012PAKDDInstance-Ranking: A New Perspective to Consider the Instance Dependency for Classification.Xin Xia, Xiaohu Yang, Shanping Li, Chao Wu
2012TrustComA Text Representation Method Based on Harmonic Series.Xue Chen, Chao Wu
2011CIKMRW.KNN: a proposed random walk KNN algorithm for multi-label classification.Xin Xia, Xiaohu Yang, Shanping Li, Chao Wu, Linlin Zhou
2011ICRANew measure for 'Closeness' to singularities of parallel robots.Chao Wu, Xin-Jun Liu, Fugui Xie, Jinsong Wang
2011ICTAIRanking in Co-effecting Multi-object/Link Types Networks.Bo Zhou, Manna Wu, Xin Xia, Chao Wu
2010ISPAEfficient Parallel Top-k Computation Algorithm Using Symmetry Breaking.Chao Wu, Guangzhong Sun, Guo-Liang Chen
2009GroupAnalysis of tag within online social networks.Chao Wu, Bo Zhou
2009HISApplication of LMBP Forecast Model in International Construction Claim.Shujing Zhou, Lanjing Liu, Chao Wu
2008ICNCThe Study of Neighborhood Structure of Tabu Search Algorithm for Traveling Salesman Problem.Yiwen Zhong, Chao Wu, Lishan Li, Zhengyuan Ning
2008ISCASA lattice structure for linear-phase perfect reconstruction filter banks with mirror image symmetric frequency response.Chao Wu, Wei-Ping Zhu, M. N. S. Swamy
2007ISCASA Class of Cosine-Modulated Filter Banks with Multiple Prototype Filters.Chao Wu, Wei-Ping Zhu, M. N. S. Swamy
2006APSCCAn Approach to Dynamic Model Combination on Solving Decision-Making Problem.Chao Wu, Mingjun Xin, Weihua Li
2006ISCASDesign of Mth-band FIR filters based on generalized polyphase structure.Chao Wu, Wei-Ping Zhu, M. N. S. Swamy
2006ISCASRealization of 2D FIR filters using generalized polyphase structure combined with singular-value decomposition.Wei-Ping Zhu, Chao Wu, M. N. S. Swamy