<p>This paper introduces Javidi, a novel deep learning optimizer that systematically integrates third-moment estimation with Nesterov accelerated momentum and AMSGrad stabilization. While existing adaptive optimizers primarily rely on first- and second-order gradient moments, they largely overlook informative higher-order statistics. Javidi addresses this limitation through three core innovations: (1) dynamic third-moment estimation to capture gradient distribution skewness, (2) a time-decaying weighting coefficient (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\lambda _t = \lambda _0 / \sqrt{t}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msub> <mi>λ</mi> <mi>t</mi> </msub> <mo>=</mo> <msub> <mi>λ</mi> <mn>0</mn> </msub> <mo stretchy="false">/</mo> <msqrt> <mi>t</mi> </msqrt> </mrow> </math></EquationSource> </InlineEquation>) that adaptively modulates the contribution of the third moment throughout training, and (3) Nesterov-style look-ahead momentum combined with AMSGrad’s maximum second-moment tracking to enhance convergence stability. Extensive empirical evaluation across five benchmark datasets spanning computer vision (MNIST, noisy MNIST, and noisy CIFAR-10) and natural language processing (SST-2 and AG News) demonstrates Javidi’s consistently strong performance compared to five state-of-the-art optimizers, namely Adam, AdamW, Lion, LAMB, and Sophia. All experiments were conducted over 7 independent runs with different random seeds. Results are reported as mean values with 95<InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mo>%</mo> </math></EquationSource> </InlineEquation> bootstrap confidence intervals (percentile method, 5000 resamples). Statistical significance was assessed using pair-wise t-tests on accuracy values with Bonferroni correction for multiple comparisons. On vision benchmarks, Javidi achieves top-tier accuracy on MNIST (0.9919 [0.9916, 0.9922]) and noisy MNIST (0.9923 [0.9918, 0.9927]), performing statistically equivalently to Lion (<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(p = 0.4649\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>p</mi> <mo>=</mo> <mn>0.4649</mn> </mrow> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(p = 0.8344\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>p</mi> <mo>=</mo> <mn>0.8344</mn> </mrow> </math></EquationSource> </InlineEquation>, respectively) while significantly outperforming other baselines (<InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(p &lt; 0.01\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>p</mi> <mo>&lt;</mo> <mn>0.01</mn> </mrow> </math></EquationSource> </InlineEquation>). On the more challenging noisy CIFAR-10 dataset, Javidi ranks second (0.7882 [0.7828, 0.7928]) and significantly outperforms LAMB and Sophia (<InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(p &lt; 0.001\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>p</mi> <mo>&lt;</mo> <mn>0.001</mn> </mrow> </math></EquationSource> </InlineEquation>). For NLP tasks, Javidi delivers competitive results on SST-2 (0.9102 [0.9075, 0.9128]) and AG News (0.9101 [0.9092, 0.9107]), maintaining statistical equivalence to leading baselines on SST-2 while significantly outperforming most competitors on AG News (<InlineEquation ID="IEq7"> <EquationSource Format="TEX">\(p &lt; 0.001\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>p</mi> <mo>&lt;</mo> <mn>0.001</mn> </mrow> </math></EquationSource> </InlineEquation>). Across all datasets, Javidi exhibits exceptional stability, with coefficients of variation not exceeding <InlineEquation ID="IEq8"> <EquationSource Format="TEX">\(0.97\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>0.97</mn> <mo>%</mo> </mrow> </math></EquationSource> </InlineEquation>, indicating low sensitivity to random initialization. The optimizer maintains competitive computational efficiency, incurring a modest overhead typically within 7–<InlineEquation ID="IEq9"> <EquationSource Format="TEX">\(15\%\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>15</mn> <mo>%</mo> </mrow> </math></EquationSource> </InlineEquation> relative to Adam, depending on the dataset, while achieving smoother convergence, lower final training losses, and notable robustness to hyperparameter variations. These results show that integrating higher-order gradient moments can significantly improve optimization performance with limited computational overhead. Code and supplementary materials are available at <a href="https://github.com/Aliyar4061/Javidiv2-Optimizer">https://github.com/Aliyar4061/Javidiv2-Optimizer</a>.</p>

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Javidi: enhanced deep learning optimization through third-moment integration and adaptive acceleration

  • Ali Zeydi Abdian,
  • Mohammad Masoud Javidi,
  • Najme Mansouri

摘要

This paper introduces Javidi, a novel deep learning optimizer that systematically integrates third-moment estimation with Nesterov accelerated momentum and AMSGrad stabilization. While existing adaptive optimizers primarily rely on first- and second-order gradient moments, they largely overlook informative higher-order statistics. Javidi addresses this limitation through three core innovations: (1) dynamic third-moment estimation to capture gradient distribution skewness, (2) a time-decaying weighting coefficient ( \(\lambda _t = \lambda _0 / \sqrt{t}\) λ t = λ 0 / t ) that adaptively modulates the contribution of the third moment throughout training, and (3) Nesterov-style look-ahead momentum combined with AMSGrad’s maximum second-moment tracking to enhance convergence stability. Extensive empirical evaluation across five benchmark datasets spanning computer vision (MNIST, noisy MNIST, and noisy CIFAR-10) and natural language processing (SST-2 and AG News) demonstrates Javidi’s consistently strong performance compared to five state-of-the-art optimizers, namely Adam, AdamW, Lion, LAMB, and Sophia. All experiments were conducted over 7 independent runs with different random seeds. Results are reported as mean values with 95 \(\%\) % bootstrap confidence intervals (percentile method, 5000 resamples). Statistical significance was assessed using pair-wise t-tests on accuracy values with Bonferroni correction for multiple comparisons. On vision benchmarks, Javidi achieves top-tier accuracy on MNIST (0.9919 [0.9916, 0.9922]) and noisy MNIST (0.9923 [0.9918, 0.9927]), performing statistically equivalently to Lion ( \(p = 0.4649\) p = 0.4649 and \(p = 0.8344\) p = 0.8344 , respectively) while significantly outperforming other baselines ( \(p < 0.01\) p < 0.01 ). On the more challenging noisy CIFAR-10 dataset, Javidi ranks second (0.7882 [0.7828, 0.7928]) and significantly outperforms LAMB and Sophia ( \(p < 0.001\) p < 0.001 ). For NLP tasks, Javidi delivers competitive results on SST-2 (0.9102 [0.9075, 0.9128]) and AG News (0.9101 [0.9092, 0.9107]), maintaining statistical equivalence to leading baselines on SST-2 while significantly outperforming most competitors on AG News ( \(p < 0.001\) p < 0.001 ). Across all datasets, Javidi exhibits exceptional stability, with coefficients of variation not exceeding \(0.97\%\) 0.97 % , indicating low sensitivity to random initialization. The optimizer maintains competitive computational efficiency, incurring a modest overhead typically within 7– \(15\%\) 15 % relative to Adam, depending on the dataset, while achieving smoother convergence, lower final training losses, and notable robustness to hyperparameter variations. These results show that integrating higher-order gradient moments can significantly improve optimization performance with limited computational overhead. Code and supplementary materials are available at https://github.com/Aliyar4061/Javidiv2-Optimizer.