Results 41 to 50 of about 50,329,501 (342)

Generating Labeled Multiple Attribute Trajectory Data With Selective Partial Anonymization Based on Exceptional Conditional Generative Adversarial Network

IEEE Access, 2023
Trajectory data generated in location-based service environments contain highly sensitive personal information, making them a prime target for privacy attacks.
Yeji Song, Jihwan Shin, Jinhyun Ahn, Taewhi Lee, Dong-Hyuk Im   +4 more
doaj   +1 more source

Deriving Operational Traffic Signal Performance Measures from Vehicle Trajectory Data

Transportation Research Record, 2021
Operations-oriented traffic signal performance measures are important for identifying the need for retiming to improve traffic signal operations. Currently, most traffic signal performance measures are obtained from high-resolution traffic signal ...
Enrique D. Saldivar-Carranza, Howell Li, Jijo K. Mathew, M. Hunter, James Sturdevant, D. Bullock   +5 more
semanticscholar   +1 more source

CTELC: A Constant-Time Ensemble Learning Classifier Based on KNN for Big Data

IEEE Access, 2023
Big data classification is a challenging task because most known classification methods need a long time and a lot of processing resources to execute such a task and use the vast amount of available data.
Ahmad S. Tarawneh, Eman S. Alamri, Najah Noori Al-Saedi, Mohammad Alauthman, Ahmad B. Hassanat   +4 more
doaj   +1 more source

Algorithms for trajectory integration in multiple views [PDF]

, 2009
PhDThis thesis addresses the problem of deriving a coherent and accurate localization of moving objects from partial visual information when data are generated by cameras placed in di erent view angles with respect to the scene.
Kayumbi-Kabeya, Gabin-Wilfried
core   +4 more sources

Trajectory optimization for the Hevelius-lunar microsatellite mission [PDF]

, 2005
In this paper trajectory optimisation for the Hevelius mission is presented. The Hevelius-Lunar Microsatellite Mission - is a multilander mission to the dark side of the Moon, supported by a relay microsatellite, orbiting on a Halo orbit around L2. Three
Colombo, Camilla, Vasile, Massimiliano, Ceriotti, Matteo, Scarì, Ettore   +3 more
core   +3 more sources

A Trajectory Big Data Storage Model Incorporating Partitioning and Spatio-Temporal Multidimensional Hierarchical Organization

ISPRS International Journal of Geo-Information, 2022
Trajectory big data is suitable for distributed storage retrieval due to its fast update speed and huge data volume, but currently there are problems such as hot data writing, storage skew, high I/O overhead and slow retrieval speed.
Zhixin Yao, Jianqin Zhang, Taizeng Li, Ying Ding   +3 more
doaj   +1 more source

Context-aware Adaptive Outlier Detection in Trajectory Data

, 2020
With the advent of data mining and business processes automation, outlier detection has evolved into a major problem attracting significant research in relation to several application domains.
Wenbin Zhang, Srinivas Danda, Zhang, Ji, Jerry Chun-Wei, Danda, Srinivas, Tao, Xiaohui, Zhang, Wenbin, Xiaohui Tao, Ji Zhang, Chun-Wei, Jerry   +9 more
core   +1 more source

A Data Cleaning Method for the Identification of Outliers in Fishing Vessel Trajectories Based on a Geocoding Algorithm

Journal of Marine Science and Engineering
In modern fishery management, fishing vessel trajectory data are used to monitor and analyze fishing vessel activities. However, trajectory data are often of low quality, probably due to environmental factors, equipment failures, signal loss and ...
Li Zhang, Weifeng Zhou
doaj   +1 more source

THBase: A Coprocessor-Based Scheme for Big Trajectory Data Management

Future Internet, 2019
The rapid development of distributed technology has made it possible to store and query massive trajectory data. As a result, a variety of schemes for big trajectory data management have been proposed.
Jiwei Qin, Liangli Ma, Jinghua Niu
doaj   +1 more source

Parallel Subtrajectory Alignment over Massive-Scale Trajectory Data

International Joint Conference on Artificial Intelligence, 2021
We study the problem of subtrajectory alignment over massive-scale trajectory data. Given a collection of trajectories, a subtrajectory alignment query returns new targeted trajectories by splitting and aligning existing trajectories.
Lisi Chen, Shuo Shang, Shanshan Feng, Panos Kalnis   +3 more
semanticscholar   +1 more source