Andrey Vasnev

Dr. Andrey Vasnev

orcid

Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2016 in International Journal of Forecasting
Verified
Journal Article
Closed access
GCGerda Claeskens
Gerda Claeskens
JMJan R. Magnus
Jan R. Magnus
AVAndrey Vasnev
Andrey Vasnev
Wendun WangWendun Wang
Wendun Wang

11 June 2018 in Abacus
Verified
Journal Article
Closed access
PDF file
DCDemetris Christodoulou
Demetris Christodoulou
LMLe Ma
Le Ma
AVAndrey Vasnev
Andrey Vasnev

1 July 2018 in Omega
Verified
Journal Article
Closed access
DMDmytro Matsypura
Dmytro Matsypura
RTRyan Thompson
Ryan Thompson
AVAndrey Vasnev
Andrey Vasnev

1 February 2007 in The Econometrics Journal
Verified
Journal Article
Closed access
PDF file
JMJan R. Magnus
Jan R. Magnus
AVAndrey Vasnev
Andrey Vasnev

13 August 2022 in International Journal of Machine Learning and Cybernetics
Verified
Journal Article
Open access
PDF file
RJRenlong Jie
Renlong Jie
JGJunbin Gao
Junbin Gao
AVAndrey Vasnev
Andrey Vasnev
MTMinh-Ngoc Tran
Minh-Ngoc Tran
Adaptive learning rate strategies can lead to faster convergence and better performance for deep learning models. There are some widely known human-designed adaptive optimizers such as Adam and RMSProp, gradient based adaptive methods such as hyper-descent and practical loss-based stepsize adaptation (L4), and meta learning approaches including learning to learn. However, the existing studies did not take into account the hierarchical structures of deep neural networks in designing the adaptation strategies. Meanwhile, the issue of balancing adaptiveness and convergence is still an open question to be answered. In this study, we investigate novel adaptive learning rate strategies at different levels based on the hyper-gradient descent framework and propose a method that adaptively learns the optimizer parameters by combining adaptive information at different levels. In addition, we show the relationship between regularizing over-parameterized learning rates and building combinations of adaptive learning rates at different levels. Moreover, two heuristics are introduced to guarantee the convergence of the proposed optimizers. The experiments on several network architectures, including feed-forward networks, LeNet-5 and ResNet-18/34, show that the proposed multi-level adaptive approach can significantly outperform many baseline adaptive methods in a variety of circumstances.

1 April 2016 in International Journal of Forecasting
Verified
Journal Article
Closed access
LPLaurent L. Pauwels
Laurent L. Pauwels
AVAndrey Vasnev
Andrey Vasnev