منابع مشابه
Direction-Preserving Trajectory Simplification
Trajectories of moving objects are collected in many applications. Raw trajectory data is typically very large, and has to be simplified before use. In this paper, we introduce the notion of directionpreserving trajectory simplification, and show both analytically and empirically that it can support a broader range of applications than traditional position-preserving trajectory simplification. ...
متن کاملTrajectory Simplification: On Minimizing the Direction-based Error
Trajectory data is central to many applications with moving objects. Raw trajectory data is usually very large, and so is simplified before it is stored and processed. Many trajectory simplification notions have been proposed, and among them, the direction-preserving trajectory simplification (DPTS) which aims at protecting the direction information has been shown to perform quite well. However...
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Nowadays, various sensors are collecting, storing and transmitting tremendous trajectory data, and it is known that raw trajectory data seriously wastes the storage, network band and computing resource. Line simplification (LS) algorithms are an effective approach to attacking this issue by compressing data points in a trajectory to a set of continuous line segments, and are commonly used in pr...
متن کاملOne-Pass Trajectory Simplification Using the Synchronous Euclidean Distance
Various mobile devices have been used to collect, store and transmit tremendous trajectory data, and it is known that raw trajectory data seriously wastes the storage, network band and computing resource. To attack this issue, one-pass line simplification (LS) algorithms have are been developed, by compressing data points in a trajectory to a set of continuous line segments. However, these algo...
متن کاملA Graph-Based Min-# and Error-Optimal Trajectory Simplification Algorithm and Its Extension towards Online Services
Trajectory simplification has become a research hotspot since it plays a significant role in the data preprocessing, storage, and visualization of many offline and online applications, such as online maps, mobile health applications, and location-based services. Traditional heuristic-based algorithms utilize greedy strategy to reduce time cost, leading to high approximation error. An Optimal Tr...
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ژورنال
عنوان ژورنال: IEEE Access
سال: 2019
ISSN: 2169-3536
DOI: 10.1109/access.2019.2907312