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Paper Abstract and Keywords
Presentation 2018-06-07 10:20
Secure Computation of Sparse Coding for Privacy Protection
Takayuki Nakachi (NTT), Hitoshi Kiya (Tokyo Metro. Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Sparse coding represents observed signals effectively as a linear combination of a small number of bases which are chosen from the basis functions trained by the algorithm. On the other hand, cloud computing is spreading in many fields. However, the cloud computing has some serious issues for end users, such as unauthorized use and leak of data, and privacy compromise, due to unreliability of providers and some accident. In this manuscript, we propose a secure sparse coding computation. It is shown that the secure sparse coding computation enables us to not only protects observed signals, but also have the same estimation performance as that of sparse coding with unprotected observed signals.
Keyword (in Japanese) (See Japanese page) 
(in English) Sparse Coding / Orthogonal Matching Pursuit / Random Unitary Transform / Secure Computation / / / /  
Reference Info. ITE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee 3DIT IPSJ-AVM IEICE-SIS  
Conference Date 2018-06-07 - 2018-06-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Jozankei View Hotel 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Intelligent Multimedia Systems, Applied Enbedded Systems, etc. 
Paper Information
Registration To IEICE-SIS 
Conference Code 2018-06-SIS-AVM-3DIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Secure Computation of Sparse Coding for Privacy Protection 
Sub Title (in English)  
Keyword(1) Sparse Coding  
Keyword(2) Orthogonal Matching Pursuit  
Keyword(3) Random Unitary Transform  
Keyword(4) Secure Computation  
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1st Author's Name Takayuki Nakachi  
1st Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
2nd Author's Name Hitoshi Kiya  
2nd Author's Affiliation Tokyo Metropolitan Univiersity (Tokyo Metro. Univ.)
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Speaker
Date Time 2018-06-07 10:20:00 
Presentation Time 20 
Registration for IEICE-SIS 
Paper #  
Volume (vol) ITE-42 
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#Pages ITE- 
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