Article(id=1245407858494390590, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156262727438951343, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2308502, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1698681600000, receivedDateStr=2023-10-31, revisedDate=1721923200000, revisedDateStr=2024-07-26, acceptedDate=null, acceptedDateStr=null, onlineDate=1774857972023, onlineDateStr=2026-03-30, pubDate=1741363200000, pubDateStr=2025-03-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774857972023, onlineIssueDateStr=2026-03-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774857972023, creator=13701087609, updateTime=1774857972023, updator=13701087609, issue=Issue{id=1156262727438951343, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='7', pageStart='2193', pageEnd='3077', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1753604116544, creator=13701087609, updateTime=1753771263994, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156963794699248405, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156262727438951343, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156963794699248406, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1156262727438951343, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=2849, endPage=2855, ext={EN=ArticleExt(id=1245407859123536199, articleId=1245407858494390590, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Adaptive Privacy Protection Scheme for Federated Learning Based on Differential Privacy, columnId=1156262729162810294, journalTitle=Science Technology and Engineering, columnName=Papers·Automation and Computational Technology, runingTitle=null, highlight=null, articleAbstract=
With the deepening research on federated learning, it has been observed that the privacy protection strategies employed within federated learning fall short of fully guaranteeing the security and confidentiality of user data. Moreover, the training process in federated learning encounters challenges regarding model convergence. In response to these aforementioned issues, an innovative solution termed adaptive differential privacy (DP-AdaMod) was proposed. Primarily, the model training process was fine-tuned by incorporating an adaptive learning rate algorithm to mitigate model fluctuations and the adverse effects of overfitting. Consequently, this enhancement led to improved training efficiency and optimal performance. Secondly, the application of differential privacy techniques ensured the privacy security in federated learning through the deliberate introduction of noise into the model gradients. Additionally, accurate quantification of privacy loss was achieved by implementing the moment accountant mechanism, facilitating a balanced trade-off between privacy preservation and analytical accuracy. This meticulous approach served to fortify system security. Lastly, the efficacy of the proposed solution was ascertained through comprehensive simulation experiments. The results substantiate the superior performance of the proposed method, evident by its exceptional accuracy, efficient utilization of privacy budget, and other notable facets.
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随着对联邦学习的深入研究,发现联邦学习中的隐私保护策略并不能完全保护用户的隐私安全,并且在联邦学习训练过程中存在模型收敛困难的问题。针对以上问题,提出了一种自适应差分隐私机制(adaptive differential privacy, DP-AdaMod)。首先,利用自适应学习率算法调整模型训练过程,避免模型出现波动和过拟合现象,从而提高模型训练的效率和性能。其次,引入差分隐私技术,通过对模型梯度添加噪声来确保联邦学习的隐私安全。同时,使用Moment Accountant机制进行隐私损失的精确计算,有助于平衡隐私保护性能和精度,从而进一步增强了系统的安全性。最后,通过仿真实验验证所提方案的有效性。结果表明该方案在准确率、隐私预算消耗等方面展现出较优性能。
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赵婵婵(1982—),女,汉族,山西临汾人,博士,副教授。研究方向:隐私保护、边缘计算。E-mail:cczhao@imut.edu.cn。
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赵婵婵(1982—),女,汉族,山西临汾人,博士,副教授。研究方向:隐私保护、边缘计算。E-mail:cczhao@imut.edu.cn。
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Federated learning framework, figureFileSmall=KS48tFmuQ66lC6DDkd2qZg==, figureFileBig=lY25um5isPKqxjD72inurA==, tableContent=null), ArticleFig(id=1245407864437719689, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=CN, label=图1, caption=
联邦学习框架, figureFileSmall=KS48tFmuQ66lC6DDkd2qZg==, figureFileBig=lY25um5isPKqxjD72inurA==, tableContent=null), ArticleFig(id=1245407864727126690, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=EN, label=Fig.2, caption=
Localization of differential privacy, figureFileSmall=tmSBd0xGfyy45ETLsWhERg==, figureFileBig=afU2joVtwz3oDjLngHpehQ==, tableContent=null), ArticleFig(id=1245407864869733036, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=CN, label=图2, caption=
本地化差分隐私, figureFileSmall=tmSBd0xGfyy45ETLsWhERg==, figureFileBig=afU2joVtwz3oDjLngHpehQ==, tableContent=null), ArticleFig(id=1245407864987173557, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=EN, label=Fig.3, caption=
Overall framework, figureFileSmall=RC9sFehvUKYJBtb4hpQx2Q==, figureFileBig=A6G9D8ZbkGdYLjZPvkeHWg==, tableContent=null), ArticleFig(id=1245407865121391298, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=CN, label=图3, caption=
总体框架, figureFileSmall=RC9sFehvUKYJBtb4hpQx2Q==, figureFileBig=A6G9D8ZbkGdYLjZPvkeHWg==, tableContent=null), ArticleFig(id=1245407865243026126, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=EN, label=Fig.4, caption=
Comparison of accuracy under different privacy budget conditions, figureFileSmall=AyeuYPp80tWEi9Yq3ky/Pg==, figureFileBig=oXHB8IeXckYalSel6/HMfQ==, tableContent=null), ArticleFig(id=1245407865410798301, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=CN, label=图4, caption=
不同隐私预算条件下准确率对比, figureFileSmall=AyeuYPp80tWEi9Yq3ky/Pg==, figureFileBig=oXHB8IeXckYalSel6/HMfQ==, tableContent=null), ArticleFig(id=1245407865536627434, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1 自适应差分隐私算法(DP-AdaMod算法) |
nput:初始化参数θ0,初始化参数样本{x1,x2,…,xN},学习$\{{\eta }_{t}{\}}_{t=1}^{T}$,噪声参数σ,批次大小L,衰减参数{β1,β2,β3},梯度裁剪阈值C,迭代次数T,损失函数L(θ)=$\frac{1}{N}{\sum }_{i}^{}$L(θ,xi)。 Initialize: m0=0,v0=0,s0=0, for t=1 to T do: Step1:计算梯度gt(xi)← L(θ,xi) Step2:梯度修剪gt(xi)←$\frac{{g}_{t}\left({x}_{i}\right)}{max(1,\Vert {g}_{t}({x}_{i}){\Vert }_{2}/C)}$ Step3:计算学习率和梯度累计值:${\overline{g}}_{t}$←$\sum _{i=0}^{m}$gt(xi)mt=β1 mt-1+(1-β1)${\overline{g}}_{t}$ vt=β2vt-1+(1-β2)${{\overline{g}}_{t}}^{2}$ ${\stackrel{\wedge }{m}}_{t}$=mt/(1-${\beta }_{1}^{t}$) ${\stackrel{\wedge }{v}}_{t}$=vt/(1-${\beta }_{2}^{t}$) ηt=αt/($\sqrt[ ]{{\stackrel{\wedge }{v}}_{t}}$+ε) st=β3st-1+(1-β3)ηt ${\stackrel{\wedge }{\eta }}_{t}$=min(ηt,st) Step4:噪声添加${\stackrel{~}{g}}_{t}$←$\frac{1}{L}{\sum }_{i}^{}$[${\stackrel{\wedge }{m}}_{t}$+N(0,${\sigma }_{t}^{2}{C}^{2}$I)] Step5:参数更新θt=θt-1-${\stackrel{\wedge }{\eta }}_{t}{\stackrel{~}{g}}_{t}$ end for Out Put: θt |
), ArticleFig(id=1245407865637290741, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=CN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法1 自适应差分隐私算法(DP-AdaMod算法) |
nput:初始化参数θ0,初始化参数样本{x1,x2,…,xN},学习$\{{\eta }_{t}{\}}_{t=1}^{T}$,噪声参数σ,批次大小L,衰减参数{β1,β2,β3},梯度裁剪阈值C,迭代次数T,损失函数L(θ)=$\frac{1}{N}{\sum }_{i}^{}$L(θ,xi)。 Initialize: m0=0,v0=0,s0=0, for t=1 to T do: Step1:计算梯度gt(xi)← L(θ,xi) Step2:梯度修剪gt(xi)←$\frac{{g}_{t}\left({x}_{i}\right)}{max(1,\Vert {g}_{t}({x}_{i}){\Vert }_{2}/C)}$ Step3:计算学习率和梯度累计值:${\overline{g}}_{t}$←$\sum _{i=0}^{m}$gt(xi)mt=β1 mt-1+(1-β1)${\overline{g}}_{t}$ vt=β2vt-1+(1-β2)${{\overline{g}}_{t}}^{2}$ ${\stackrel{\wedge }{m}}_{t}$=mt/(1-${\beta }_{1}^{t}$) ${\stackrel{\wedge }{v}}_{t}$=vt/(1-${\beta }_{2}^{t}$) ηt=αt/($\sqrt[ ]{{\stackrel{\wedge }{v}}_{t}}$+ε) st=β3st-1+(1-β3)ηt ${\stackrel{\wedge }{\eta }}_{t}$=min(ηt,st) Step4:噪声添加${\stackrel{~}{g}}_{t}$←$\frac{1}{L}{\sum }_{i}^{}$[${\stackrel{\wedge }{m}}_{t}$+N(0,${\sigma }_{t}^{2}{C}^{2}$I)] Step5:参数更新θt=θt-1-${\stackrel{\wedge }{\eta }}_{t}{\stackrel{~}{g}}_{t}$ end for Out Put: θt |
), ArticleFig(id=1245407865733759745, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=EN, label=Table 2, caption=
Comparison of privacy budget consumption under the same accuracy condition
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集 | 准确率/ % | δ | ε1 | ε2 | ε3 | 减少率 1/% | 减少率 2/% |
| MNIST | 88 | 10-5 | 0.71 | 0.62 | 0.56 | 21.13 | 8.94 |
| 90 | 1.28 | 1.09 | 0.92 | 28.04 | 15.51 |
| 92 | 1.78 | 1.32 | 1.23 | 30.90 | 6.81 |
| 94 | 5.73 | 3.68 | 2.98 | 47.99 | 19.02 |
), ArticleFig(id=1245407865838617355, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1245407858494390590, language=CN, label=表2, caption=
相同准确率条件下消耗隐私预算对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据集 | 准确率/ % | δ | ε1 | ε2 | ε3 | 减少率 1/% | 减少率 2/% |
| MNIST | 88 | 10-5 | 0.71 | 0.62 | 0.56 | 21.13 | 8.94 |
| 90 | 1.28 | 1.09 | 0.92 | 28.04 | 15.51 |
| 92 | 1.78 | 1.32 | 1.23 | 30.90 | 6.81 |
| 94 | 5.73 | 3.68 | 2.98 | 47.99 | 19.02 |
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