Stream Data Processing based on Sliding Window at u-Health System

u-Health 시스템에서 슬라이딩 윈도우 기반 스트림 데이터 처리

  • 김태연 (조선대학교 컴퓨터통계학과) ;
  • 송병호 (조선대학교 컴퓨터통계학과) ;
  • 배상현 (조선대학교 컴퓨터통계학과)
  • Received : 2011.04.26
  • Accepted : 2011.05.29
  • Published : 2011.06.30


It is necessary to accurate and efficient management for measured digital data from sensors in u-health system. It is not efficient that sensor network process input stream data of mass storage stored in database the same time. We propose to improve the processing performance of multidimensional stream data continuous incoming from multiple sensor. We propose process query based on sliding window for efficient input stream and found multiple query plan to Mjoin method and we reduce stored data using backpropagation algorithm. As a result, we obtained to efficient result about 18.3% reduction rate of database using 14,324 data sets.