Finding long and similar parts of trajectories
文献类型：期刊论文
| 作者 | Buchin, Kevin; Buchin, Maike; van Kreveld, Marc; Luo, Jun |
| 刊名 | COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS
 |
| 出版日期 | 2011 |
| 卷号 | 44期号:9页码:465-476 |
| 英文摘要 | A natural time-dependent similarity measure for two trajectories is their average distance at corresponding times. We give algorithms for computing the mostsimilar subtrajectories under this measure, assuming the two trajectories are given as two polygonal, possibly self-intersecting lines with time stamps. For the case when a minimum duration of the subtrajectories is specified and the subtrajectories must start at corresponding times, we give a linear-time algorithm. The algorithm is based on a result of independent interest: We present a linear-time algorithm to find, for a piece-wise monotone function, an interval of at least a given length that has minimum average value. In the case that the subtrajectories may start at non-corresponding times, it appears difficult to give exact algorithms, even if the duration of the subtrajectories is fixed. For this case, we give (1 + epsilon)-approximation algorithms, for both fixed duration and when only a minimum duration is specified. (C) 2011 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 原文出处 | http://ac.els-cdn.com/S0925772111000344/1-s2.0-S0925772111000344-main.pdf?_tid=404c7296-0ab5-11e5-9915-00000aab0f02&acdnat=1433421108_b39640c1b3b7711e15b647d1bff05335 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/3563]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS |
| 推荐引用方式 GB/T 7714 | Buchin, Kevin,Buchin, Maike,van Kreveld, Marc,et al. Finding long and similar parts of trajectories[J]. COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS,2011,44(9):465-476. |
| APA | Buchin, Kevin,Buchin, Maike,van Kreveld, Marc,&Luo, Jun.(2011).Finding long and similar parts of trajectories.COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS,44(9),465-476. |
| MLA | Buchin, Kevin,et al."Finding long and similar parts of trajectories".COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS 44.9(2011):465-476. |
入库方式： OAI收割
来源：深圳先进技术研究院
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