TY - GEN

T1 - Accelerated singular value thresholding for matrix completion

AU - Hu, Yao

AU - Zhang, Debing

AU - Liu, Jun

AU - Ye, Jieping

AU - He, Xiaofei

PY - 2012

Y1 - 2012

N2 - Recovering a large matrix from a small subset of its entries is a challenging problem arising in many real world applications, such as recommender system and image in-painting. These problems can be formulated as a general matrix completion problem. The Singular Value Thresholding (SVT) algorithm is a simple and efficient first-order matrix completion method to recover the missing values when the original data matrix is of low rank. SVT has been applied successfully in many applications. However, SVT is computationally expensive when the size of the data matrix is large, which significantly limits its applicability. In this paper, we propose an Accelerated Singular Value Thresholding (ASVT) algorithm which improves the convergence rate from O(1/N) for SVT to O(1/N 2), where N is the number of iterations during optimization. Specifically, the dual problem of the nuclear norm minimization problem is derived and an adaptive line search scheme is introduced to solve this dual problem. Consequently, the optimal solution of the primary problem can be readily obtained from that of the dual problem. We have conducted a series of experiments on a synthetic dataset, a distance matrix dataset and a large movie rating dataset. The experimental results have demonstrated the efficiency and effectiveness of the proposed algorithm.

AB - Recovering a large matrix from a small subset of its entries is a challenging problem arising in many real world applications, such as recommender system and image in-painting. These problems can be formulated as a general matrix completion problem. The Singular Value Thresholding (SVT) algorithm is a simple and efficient first-order matrix completion method to recover the missing values when the original data matrix is of low rank. SVT has been applied successfully in many applications. However, SVT is computationally expensive when the size of the data matrix is large, which significantly limits its applicability. In this paper, we propose an Accelerated Singular Value Thresholding (ASVT) algorithm which improves the convergence rate from O(1/N) for SVT to O(1/N 2), where N is the number of iterations during optimization. Specifically, the dual problem of the nuclear norm minimization problem is derived and an adaptive line search scheme is introduced to solve this dual problem. Consequently, the optimal solution of the primary problem can be readily obtained from that of the dual problem. We have conducted a series of experiments on a synthetic dataset, a distance matrix dataset and a large movie rating dataset. The experimental results have demonstrated the efficiency and effectiveness of the proposed algorithm.

KW - adaptive line search scheme

KW - matrix completion

KW - nesterov's method

KW - singular value thresholding

UR - http://www.scopus.com/inward/record.url?scp=84866047796&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84866047796&partnerID=8YFLogxK

U2 - 10.1145/2339530.2339581

DO - 10.1145/2339530.2339581

M3 - Conference contribution

AN - SCOPUS:84866047796

SN - 9781450314626

T3 - Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining

SP - 298

EP - 306

BT - KDD'12 - 18th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining

T2 - 18th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, KDD 2012

Y2 - 12 August 2012 through 16 August 2012

ER -