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SwiftTheft: A Time-Efficient Model Extraction Attack Framework Against Cloud-Based Deep Neural Networks

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Chinese Journal of Electronics 2024年第1期33卷 90-100页

作者： Wenbin YANG Xueluan gong Yanjiao CHEN Qian WANG Jianshuo DONG School of Cyber Science and Engineering Wuhan University School of Computer Science Wuhan University College of Electrical Engineering Zhejiang University

With the rise of artificial intelligence and cloud computing, machine-learning-as-a-service platforms,such as Google, Amazon, and IBM, have emerged to provide sophisticated tasks for cloud applications. These proprietary models are vulnerable to model extraction attacks due to their commercial value. In this paper, we propose a time-efficient model extraction attack framework called Swift Theft that aims to steal the functionality of cloud-based deep neural network models. We distinguish Swift Theft from the existing works with a novel distribution estimation algorithm and reference model settings, finding the most informative query samples without querying the victim model. The selected query samples can be applied to various cloud models with a one-time selection. We evaluate our proposed method through extensive experiments on three victim models and six datasets, with up to 16 models for each dataset. Compared to the existing attacks, Swift Theft increases agreement(i.e., similarity) by 8% while consuming 98% less selecting time.

关键词： Performance evaluation Cloud computing Analytical models Computational modeling Estimation Artificial neural networks Artificial intelligence

Electronic modulation of sprout-shaped NiCoP nanoarrays by N and Ce doping for efficient overall water splitting

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Nano Research 2024年第1期17卷 282-289页

作者： Ting Zhao Guancheng Xu Bingbing gong Jiahui Jiang Li Zhang State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830017China College of Chemical Engineering Xinjiang UniversityUrumqi 830017China

Bifunctional catalysts for hydrogen/oxygen evolution reactions(HER/OER)are urgently needed given the bright future of water splitting hydrogen production ***,the self-supporting N and Ce dual-doped NiCoP nanoarrays(denoted N,Ce-NiCoP/NF)grown on Ni foam are successfully *** the N,Ce-NiCoP/NF simultaneously acts as the HER and OER electrodes,the voltages of 1.54 and 2.14 V are obtained for driving 10 and 500 mA·cm^(-2)with a robust durability,and demonstrate its significant potential for practical water *** to both experiments and calculations,the electronic structure of NiCoP may be significantly altered by strategically incorporating N and Ce into the lattice,which in turn optimizes the Gibbs free energy of HER/OER intermediates and speeds up the water splitting ***,the sprout-shaped morphology significantly increases the exposure of active sites and facilitates charge/mass transfer,thereby augmenting catalyst *** study offers a potentially effective approach involving the regulation of anion and cation double doping,as well as architectural engineering,for the purpose of designing and optimizing innovative electrocatalysts.

关键词： transition metal phosphides overall water splitting elements doping nanoarrays

Cmtm4 deficiency exacerbates colitis by inducing gut dysbiosis and S100a8/9 expression

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Journal of Genetics and Genomics 2024年第8期51卷 811-823页

作者： Qiao Meng Jing Ning Jingjing Lu Jing Zhang ming Zu Jing Zhang Xiurui Han Huiling Zheng Yueqing gong Xinyu Hao Ying Xiong Fang Gu Wenling Han Weiwei Fu Jun Wang Shigang Ding Department of Gastroenterology Peking University Third HospitalBeijing 100191China Beijing Key Laboratory for Helicobacter Pylori Infection and Upper Gastrointestinal Diseases(BZ0371) Beijing 100191China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100101China Department of Immunology School of Basic Medical SciencesPeking University Health Science CenterNHC Key Laboratory of Medical Immunology(Peking University)Beijing 100191China Peking University Center for Human Disease Genomics Beijing 100191China

The dysfunction of innate immunity components is one of the major drivers for ulcerative colitis(UC),and increasing reports indicate that the gut microbiome serves as an intermediate between genetic mutations and UC ***,we find that the IL-17 receptor subunit,CMTM4,is reduced in UC patients and dextran sulfate sodium(DSS)-induced *** deletion of CMTM4(Cmtm4^(-/-))in mice leads to a higher susceptibility to DSS-induced colitis than in wild-type,and the gut microbiome significantly changes in *** causal role of the gut microbiome is confirmed with a cohousing *** further identify that S100a8/9 is significantly up-regulated in Cmtm4^(-/-)colitis,with the block of its receptor RAGE that reverses the phenotype associated with the CMTM4 ***4 deficiency rather suppresses S100a8/9 expression in vitro via the IL17 pathway,further supporting that the elevation of S100a8/9 in vivo is most likely a result of microbial *** together,the results suggest that CMTM4 is involved in the maintenance of intestinal homeostasis,suppression of S100a8/9,and prevention of colitis *** study further shows CMTM4 as a crucial innate immunity component,confirming its important role in UC development and providing insights into potential targets for the development of future therapies.

关键词： Ulcerative colitis CMTM4 Gut microbiota IL-17 receptor C(IL-17RC) S100a8/9

Constant-roll inflation with non-minimally derivative coupling

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Communications in Theoretical Physics 2024年第9期76卷 57-64页

作者： Jie Liu Yungui gong Zhu Yi School of Physics and Electronic Engineering Hainan Normal University Department of Physics School of Physical Science and Technology Ningbo University School of Physics Huazhong University of Science and Technology Faculty of Arts and Sciences Beijing Normal University Advanced Institute of Natural Sciences Beijing Normal University

We investigate the constant-roll inflation with non-minimally kinetic coupling to the Einstein *** the slow-roll parameter ■ being a constant,we calculate the power spectra for scalar and tensor perturbations,and derive the expressions for the scalar spectral tilt ns,the tensor spectral tilt nT,and the tensor-to-scalar ratio *** find that the expressions for nsare different with different ordering of taking the derivative of the scalar power spectrum with respect to the scale k and the horizon crossing condition csk=a H in the constant-roll inflation,the consistency relation r=-8nTdoes not hold if|ηφ|is not small,and the duality of the tensorto-scalar ratio between the slow-roll inflation and ultra-slow-roll inflation does not exist in inflationary models with non-minimally derivative *** result offers a fresh perspective on the understanding of the inflationary models with non-minimally derivative coupling and is helpful for the production of scalar induced gravitational waves in the framework of ultra-slowroll inflation with non-minimally derivative coupling.

关键词： constant-roll inflation inflation non-minimally derivative coupling inflation

Injectable hydrogel-based drug delivery systems for enhancing the efficacy of radiation therapy:A review of recent advances

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Chinese Chemical Letters 2024年第8期35卷 128-137页

作者： Ningyue Xu Jun Wang Lei Liu Changyang gong Division of Head&Neck Tumor Multimodality Treatment Cancer CenterWest China HospitalSichuan UniversityChengdu 610041China Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China

Radiotherapy(RT)is a crucial treatment for cancer;however,its effectiveness is limited by adverse effects on normal tissues,radioresistance,and tumor *** overcome these challenges,hydrogels have been employed for delivery of radiosensitizers and other therapeutic *** review summarizes recent advancements in the application of hydrogel-based local drug delivery systems for improving the therapeutic efficacy of RT in cancer ***,we introduce the classification and properties of ***,we detail hydrogel-based platforms designed to enhance both external beam radiation therapy and *** also discuss hydrogels used in combination therapy involving RT and ***,we highlight the challenges that hydrogels face in *** surveying the latest developments in hydrogel applications for RT,this review aims to provide insights into the development of more effective and targeted cancer therapies.

关键词： Radiotherapy Drug delivery systems Hydrogel Radiation sensitization Combination therapy

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Hybrid Beamforming Design and Signal Processing with Fully-Connected Architecture for mmWave Integrated Sensing and Communications

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Journal of Communications and Information Networks 2024年第2期9卷 151-161页

作者： Hongyu Li Jun gong Wenchi Cheng The 54th Research Institute of China Electronics Technology Group Corporation Shijiazhuang 050080China State Key Laboratory of Integrated Services Networks Xidian UniversityXi’an 710071China

Millimeter-wave (mmWave) is capable of achieving gigabit/second communication capacity and centimeter-level sensing accuracy and has become one of the main frequency bands for integrated sensing and communications (ISAC) research. Hybrid beamforming techniques have attracted much attention for solving the high path loss of mmWave and further reducing the hardware cost of the system. However, the related studies based on multicarrier and fully-connected hybrid architectures are still limited. For this reason,this paper investigates the orthogonal frequency division multiplexing (OFDM) based mmWave fully-connected hybrid architecture ISAC system to form a stable communication beam and dynamically varying sensing beam. In order to realize the aforementioned multifunctional beams, the hybrid beamformer design problem based on weighted error minimization of multicarrier is proposed and solved efficiently using the penalty dual decomposition (PDD) algorithm. Meanwhile, based on the echo model, the multicarrier multiple signal classification (MUSIC) algorithm for target angle of arrival estimation and the two-dimensional discrete Fourier transform(2D-DFT)algorithm for distance and velocity estimation are proposed, respectively. Numerical simulation results show that by adjusting the weighting factor,a flexible trade-off can be formed between the communication spectrum efficiency and the sensing accuracy error.

关键词： integrated sensing and communications hybrid beamforming fully-connected architecture millimeter-wave

Enhanced Differentiable Architecture Search Based on Asymptotic Regularization

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Computers, Materials & Continua 2024年第2期78卷 1547-1568页

作者： Cong Jin Jinjie Huang Yuanjian Chen Yuqing gong School of Computer Science and Technology Harbin University of Science and TechnologyHarbin150006China School of Automation Harbin University of Science and TechnologyHarbin150006China

In differentiable search architecture search methods,a more efficient search space design can significantly improve the performance of the searched architecture,thus requiring people to carefully define the search space with different complexity according to various *** rationalizing the search strategies to explore the well-defined search space will further improve the speed and efficiency of architecture *** this in mind,we propose a faster and more efficient differentiable architecture search method,***,we introduce a more efficient search space enriched by the introduction of two redefined convolution ***,we utilize a more efficient architectural parameter regularization method,mitigating the overfitting problem during the search process and reducing the error brought about by gradient ***,we introduce a natural exponential cosine annealing method to make the learning rate of the neural network training process more suitable for the search ***,group convolution and data augmentation are employed to reduce the computational ***,through extensive experiments on several public datasets,we demonstrate that our method can more swiftly search for better-performing neural network architectures in a more efficient search space,thus validating the effectiveness of our approach.

关键词： Differentiable architecture search allegro search space asymptotic regularization natural exponential cosine annealing

Association of tumor budding with clinicopathological features and prognostic value in stage III-IV colorectal cancer

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World Journal of Gastroenterology 2024年第2期30卷 158-169页

作者： Yue-Hao Luo Zhe-Cheng Yan Jia-Ying Liu Xin-Yi Li ming Yang Jun Fan Bo Huang Cheng-gong Ma Xiao-Na Chang Xiu Nie Department of Pathology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei ProvinceChina

BACKGROUND Tumor budding(TB)has emerged as a promising independent prognostic biomarker in colorectal cancer(CRC).The prognostic role of TB has been extensively studied and currently affects clinical decision making in patients with stage I and II ***,existing prognostic studies on TB in stage III CRC have been confined to small retrospective cohort ***,this study investigated the correlation among TB categories,clinicopathological features,and prognosis in stage III-IV CRC to further enhance the precision and individualization of treatment through refined prognostic risk *** To analyze the relationship between TB categories and clinicopathological characteristics and assess their prognostic value in stage III-IV CRC to further refine the prognostic risk stratification of stage III-IV *** The clinical data of 547 CRC patients were collected for this retrospective *** at the front edge of the tumor buds was counted according to the 2016 International Tumor Budding Consensus Conference *** Multivariate Cox proportional hazards regression analysis demonstrated that chemotherapy(P=0.004),clinical stage IV(P<0.001),≥4 regional lymph node metastases(P=0.004),left-sided colonic cancer(P=0.040),and Bd 2-3(P=0.002)were independent prognostic factors in patients with stage III-IV ***,the density of tumor infiltrating lymphocytes was higher in Bd 1 than in Bd 2-3,both in the tumor stroma and its invasive *** TB has an independent predictive prognostic value in patients with stage III-IV *** is recommended to complete the TB report of stage III-IV CRC cases in the standardized pathological report to further refine risk stratification.

关键词： Tumor budding Tumor infiltrating lymphocytes Colorectal cancer Survival analysis Prognosis

Theoretical study on magnetocaloric effect and its electric-field regulation in CrI_(3)/metal heterostructure

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 134-141页

作者： Weiwei He Ziming Tang Qihua gong Min Yi Wanlin Guo State Key Laboratory of Mechanics and Control for Aerospace Structures Key Laboratory for Intelligent Nano Materials and Devices of Ministry of EducationInstitute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNanjing 210016China MIIT Key Laboratory of Aerospace Information Materials and Physics College of PhysicsNanjing University of Aeronautics and AstronauticsNanjing 211106China

The extraordinary properties of a heterostructure by stacking atom-thick van der Waals(vdW)magnets have been extensively ***,the magnetocaloric effect(MCE)of heterostructures that are based on monolayer magnets remains to be ***,we deliberate MCE of vd W heterostructure composed of a monolayer CrI_(3)and metal atomic layers(Ag,Hf,Au,and Pb).It is revealed that heterostructure engineering by introducing metal substrate can improve MCE of CrI_(3),particularly boosting relative cooling power to 471.72μJ m^(-2)and adiabatic temperature change to 2.1 K at 5 T for CrI_(3)/*** improved MCE is ascribed to the enhancement of magnetic moment and intralayer exchange coupling in CrI_(3)due to the CrI_(3)/metal heterointerface induced charge *** field is further found to tune MCE of CrI_(3)in heterostructures and could shift the peak temperature by around 10 K in CrI_(3)/Hf,thus manipulating the working temperature window of *** theoretical results could enrich the research on low-dimensional magnetocaloric materials.

关键词： magnetocaloric effect heterostructure metal substrate

维普期刊数据库