%0 Journal Article
%T Approximating Inaccurate Moving Object Trajectories with Bi-chebyshev Method<br>用双切比雪夫方法近似含噪音移动对象轨迹
%A LI Xiao-nan
%A DING Zhi-ming
%A <br>李肖南
%A 丁治明
%J 计算机科学
%D 2008
%I 
%X Approximating and compressing inaccurate moving object trajectories is a key topic in moving object database research.This paper proposes a new method,called Bi-Chebyshev,to solve the problem.Different from existing methods,the Bi-Chebyshev method makes use of velocity data as subsidiary information to improve the accuracy of trajectory approximation.The method is based on a quadratic optimization model,to which a numerical solution is provided.In experimental comparison,the Bi-Chebyshev method demonstrates...
%K Moving object trajectory
%K Approximation
%K Noise
%K Chebyshev polynomials<br>移动对象轨迹
%K 近似
%K 噪音
%K 切比雪夫多项式
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=ADB8FCAE6DBD82433AD99358A82E2A22&yid=67289AFF6305E306&vid=6209D9E8050195F5&iid=9CF7A0430CBB2DFD&sid=FBA00558C57D9C11&eid=4B1FFFA116F7AE3B&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=11