SangKeun LEE


XIR: Efficient Cache Invalidation Strategies for XML Data in Wireless Environments
Jae-Ho CHOI Sang-Hyun PARK Myong-Soo LEE SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/04/01
Vol. E92-B  No. 4  pp. 1337-1345
Type of Manuscript:  PAPER
Category: Broadcast Systems
Keyword: 
wireless computingXMLupdating XMLcache invalidation strategypower savingaccess latency
 Summary | Full Text:PDF(414.5KB)

Examining Impact of Sequential Access for Nearest Neighbor Search in Wireless Data Broadcast
Myong-Soo LEE SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/09/01
Vol. E91-B  No. 9  pp. 2964-2971
Type of Manuscript:  PAPER
Category: Energy in Electronics Communications
Keyword: 
location-based serviceswireless data broadcastnearest neighbor queryenergy conservation
 Summary | Full Text:PDF(197KB)

A Delayed Estimation Filter Using Finite Observations on Delay Interval
HyongSoon KIM PyungSoo KIM SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/08/01
Vol. E91-A  No. 8  pp. 2257-2262
Type of Manuscript:  LETTER
Category: Information Theory
Keyword: 
delayed estimationfixed-lag smoothingKalman filteringcomputational complexity
 Summary | Full Text:PDF(322.7KB)

In-Network Processing for Skyline Queries in Sensor Networks
Yoon KWON Jae-Ho CHOI Yon-Dohn CHUNG SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Vol. E90-B  No. 12  pp. 3452-3459
Type of Manuscript:  Special Section PAPER (Special Section on Ubiquitous Sensor Networks)
Category: 
Keyword: 
skyline querysensor networkenergy efficiency
 Summary | Full Text:PDF(454.4KB)

Energy Conserving Multiple Data Access in Wireless Data Broadcast Environments
SeokJin IM MoonBae SONG Sang-Won KANG Jongwan KIM Chong-Sun HWANG SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2629-2633
Type of Manuscript:  LETTER
Category: Broadcast Systems
Keyword: 
wireless communicationbroadcast systemair indexdata retrieval
 Summary | Full Text:PDF(489.1KB)

Analyzing Power Efficiency of Predeclaration-Based Transaction Processing in Mobile Broadcast Environments
SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/09/01
Vol. E87-D  No. 9  pp. 2277-2282
Type of Manuscript:  LETTER
Category: Image Processing and Video Processing
Keyword: 
wireless mobile computingenergy efficiencyair indexingselective tuningtransaction processing
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Caching and Concurrency Control in a Wireless Mobile Computing Environment
SangKeun LEE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/08/01
Vol. E85-D  No. 8  pp. 1284-1296
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
wireless mobile computingtransactionclient cachingcache invalidationtransactional cache consistency
 Summary | Full Text:PDF(513.1KB)