Open AccessSampling Streaming Data Along Geodesic
Author(s) -
Li Wenping,
Yang Jing,
Zhang Jianpei
Publication year - 2015
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2015.04.005
Subject(s) - geodesic , sampling (signal processing) , computer science , differential geometry , data stream , differential (mechanical device) , surface (topology) , point (geometry) , sample (material) , algorithm , mathematics , data mining , geometry , computer vision , filter (signal processing) , telecommunications , chemistry , chromatography , engineering , aerospace engineering
This paper proposes an approach to sample data stream based on differential geometry. Our aimis to take advantage of information of discarded data and support stream to generate different number of transactions during different periods. To this end, we establish an ovel data stream model represented by a surface, within which time is quantified and probability, value and time, viewed as one united body, could be calculated simultaneously. We project data stream onto a surface of the modeland replace points which have the shortest geodesic distance with their mid‐point. To the best of our knowledge, this is the first work on introducing differential geometry as a sampling trick. Experimental results show that our approach is effective.