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Paper Abstract and Keywords
Presentation 2007-01-26 16:05
A Distributed Query Optimization Problem for Secret Sharing Distributed Database System
Takeshi Ikemura, Toshiyuki Miyamoto, Sadatoshi Kumagai (Osaka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Distributed database systems can dealt with growing amount of data.
On the other hand, distributed database systems have
problems to be solved, such as secrecy, permeability, and so on.
In our lab, to over come those defects, we are proposing a distributed
database system called, a Secret Sharing Distributed Database System.
Because of it's system characterisitc, query processing in the system is
more complicated than those in normal distributed database system.
Therefore, among all the other query processing problem, the objective
of this paper is to optimize subquery assignment to servers which is
strongly affected by secret sharing method.
In this study, problem of subquery assignment to
servers is boiled down to question of combinational optimization
To solve the problem, we construct a one and only objective function to
adopt existing technique to solve subquery assignment problem in
distributed database system.
According to the computational experiment, we were able to confirm that
the application of the novel objective function is effective in
obtaining a good initial solution in solving the problem.
Keyword (in Japanese) (See Japanese page) 
(in English) distributed database / query optimzation / secret sharing scheme / threshold method / / / /  
Reference Info. IEICE Tech. Rep., vol. 106, Jan. 2007.
Paper #  
Date of Issue 2007-01-19 (CST) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee MSS  
Conference Date 2007-01-26 - 2007-01-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Concurrent systems, etc. 
Paper Information
Registration To MSS 
Conference Code 2007-01-CST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Distributed Query Optimization Problem for Secret Sharing Distributed Database System 
Sub Title (in English)  
Keyword(1) distributed database  
Keyword(2) query optimzation  
Keyword(3) secret sharing scheme  
Keyword(4) threshold method  
1st Author's Name Takeshi Ikemura  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Toshiyuki Miyamoto  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Sadatoshi Kumagai  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2007-01-26 16:05:00 
Presentation Time 25 
Registration for MSS 
Paper # IEICE-CST2006-45 
Volume (vol) IEICE-106 
Number (no) no.502 
Page pp.43-48 
#Pages IEICE-6 
Date of Issue IEICE-CST-2007-01-19 

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