Presentation	1997/7/15 A Study of Concurrency Control Methods on Information Broadcasting Yukari Shirota, Atsushi Iizawa,
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Abstract(in English)	If a lot of data are broadcasted to a wide area using digital broadcasted systems, the entire system will in result include a very large number of database sites. In general, multiple transactions concurrently run and the concurrency control for them is required. However, in such a very large distributed database system, the existing tight concurrency control method like a two phase commitment method is not efficient. Therefore, instead of the method, many researchers have proposed weak consistency control methods. In the paper, we survey the weak consistency control and think of the requirements for our target database system.
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Paper #	DE97-50
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Committee	DE
Conference Date	1997/7/15(1days)
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Registration To	Data Engineering (DE)
Language	JPN
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Title (in English)	A Study of Concurrency Control Methods on Information Broadcasting
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1st Author's Name	Yukari Shirota
1st Author's Affiliation	Information Broadcasting Laboratories, Inc.:Software Research Center, R & D Group, Ricoh Company, Ltd.()
2nd Author's Name	Atsushi Iizawa
2nd Author's Affiliation	Information Broadcasting Laboratories, Inc.:Software Research Center, R & D Group, Ricoh Company, Ltd.
Date	1997/7/15
Paper #	DE97-50
Volume (vol)	vol.97
Number (no)	161
Page	pp.pp.-
#Pages	6
Date of Issue