Presentation 2021-01-22
Distributed Mini-Batch Stochastic Subgradient Algorithm over Directed Networks
Daichi Ishikawa, Naoki Hayashi, Shigemasa Takai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We consider a constrained optimization problem of minimizing the sum of the local convex objective function values of agents over a strongly connected graph. In the proposed method, we propose a distributed mini-batch stochastic subgradient algorithm that solves the optimization problem in a distributed manner using stochastically sampled data. In this paper, we study the convergence of the proposed algorithm from the viewpoint of the regret analysis based on the row stochasticity of the weight matrix corresponding to the communication network. We show the validity of the proposed method through numerical experiments.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) distributed optimization / directed graph / stochastic optimization
Paper # RCC2020-35
Date of Issue 2021-01-15 (RCC)

Conference Information
Committee RCC
Conference Date 2021/1/22(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair HUAN-BANG LI(NICT)
Vice Chair Shunichi Azuma(Nagoya Univ.) / Koji Ishii(Kagawa Univ.)
Secretary Shunichi Azuma(CRIEPI) / Koji Ishii(Osaka Univ.)
Assistant SHAN LIN(NICT) / Masaki Ogura(Osaka Univ.)

Paper Information
Registration To Technical Committee on Reliable Communication and Control
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Distributed Mini-Batch Stochastic Subgradient Algorithm over Directed Networks
Sub Title (in English)
Keyword(1) distributed optimization
Keyword(2) directed graph
Keyword(3) stochastic optimization
1st Author's Name Daichi Ishikawa
1st Author's Affiliation Osaka University(Osaka Univ.)
2nd Author's Name Naoki Hayashi
2nd Author's Affiliation Osaka University(Osaka Univ.)
3rd Author's Name Shigemasa Takai
3rd Author's Affiliation Osaka University(Osaka Univ.)
Date 2021-01-22
Paper # RCC2020-35
Volume (vol) vol.120
Number (no) RCC-332
Page pp.pp.4-8(RCC),
#Pages 5
Date of Issue 2021-01-15 (RCC)