SPTM-L6: Sparse Optimization
Oral
Thu, 7 May, 09:00 - 11:00
Location: Room 124+125
Session Type: Oral
Track: Signal Processing Theory and Methods [TM]
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Thu, 7 May, 09:00 - 09:20

SPTM-L6.1: TIGHTNESS OF SEMIDEFINITE RELAXATION FOR QUATERNION-BASED ROTATION SYNCHRONIZATION PROBLEMS
Xin Chen, Jianing Zhao, The Chinese University of Hong Kong, China; Chunfeng Cui, Beihang University, China; Anthony Man-Cho So, The Chinese University of Hong Kong, China
Thu, 7 May, 09:20 - 09:40

SPTM-L6.2: PRIMAL VARIABLE DECOUPLING AND DIAGONAL PRECONDITIONING FOR PRIMAL-DUAL SPLITTING BEYOND LIPSCHITZ CONSTANT RESTRICTIONS
Kazuki Naganuma, Tokyo University of Agriculture and Technology, Japan; Yodai Suzuki, Institute of Science Tokyo, Japan; Ryo Hayakawa, Tokyo University of Agriculture and Technology, Japan; Shunsuke Ono, Institute of Science Tokyo, Japan
Thu, 7 May, 09:40 - 10:00

SPTM-L6.3: AN EXACT PENALTY METHOD FOR SPARSITY-CONSTRAINED OPTIMIZATION
Jianing Zhao, Junbin Liu, Anthony Man-Cho So, Wing-Kin Ma, The Chinese University of Hong Kong, Hong Kong
Thu, 7 May, 10:00 - 10:20

SPTM-L6.4: SCALABLE HESSIAN-FREE PROXIMAL CONJUGATE GRADIENT METHOD FOR NONCONVEX AND NONSMOOTH OPTIMIZATION
Yiming Zhou, Wei Dai, Imperial College London, United Kingdom of Great Britain and Northern Ireland
Thu, 7 May, 10:20 - 10:40

SPTM-L6.5: VARIABLE METRIC STOCHASTIC LINE-SEARCH FOR PRIMAL-DUAL HYBRID GRADIENT
Yodai Suzuki, Institute of Science Tokyo, Japan; Kazuki Naganuma, Tokyo University of Agriculture and Technology, Japan; Shunsuke Ono, Institute of Science Tokyo, Japan
Thu, 7 May, 10:40 - 11:00

SPTM-L6.6: SPARSE SIGNAL RECOVERY BASED ON LOWER-SEMICONTINUOUS 1-WEAKLY-CONVEX ENVELOPE OF MARGINAL FUNCTION
Kyohei Suzuki, Institute of Science Tokyo, Japan; Masahiro Yukawa, Keio University, Japan