TY - GEN
T1 - Sparse tensor recovery Via N-mode fista with support augmentation
AU - Prater-Bennette, Ashley
AU - Shen, Lixin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - A common approach for performing sparse tensor recovery is to use an N-mode FISTA method. However, this approach may fail in some cases by missing some values in the true support of the tensor and compensating by erroneously assigning nearby values to the support. This work proposes a four-stage method for performing sparse tensor reconstruction that addresses a case where N-mode FISTA may fail by augmenting the support set. Moreover, the proposed method preserves a Tucker-like structure throughout computations for computational efficiency. Numerical results on synthetic data demonstrate that the proposed method produces results with similar or higher accuracy than N-mode FISTA, and is often faster.
AB - A common approach for performing sparse tensor recovery is to use an N-mode FISTA method. However, this approach may fail in some cases by missing some values in the true support of the tensor and compensating by erroneously assigning nearby values to the support. This work proposes a four-stage method for performing sparse tensor reconstruction that addresses a case where N-mode FISTA may fail by augmenting the support set. Moreover, the proposed method preserves a Tucker-like structure throughout computations for computational efficiency. Numerical results on synthetic data demonstrate that the proposed method produces results with similar or higher accuracy than N-mode FISTA, and is often faster.
KW - FISTA
KW - Iterative soft thresholding
KW - Multidimensional compressed sensing
KW - Sparse tensors
KW - Tucker decomposition
UR - http://www.scopus.com/inward/record.url?scp=85063096519&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85063096519&partnerID=8YFLogxK
U2 - 10.1109/GlobalSIP.2018.8646430
DO - 10.1109/GlobalSIP.2018.8646430
M3 - Conference contribution
AN - SCOPUS:85063096519
T3 - 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings
SP - 1363
EP - 1367
BT - 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018
Y2 - 26 November 2018 through 29 November 2018
ER -