Patent
Method for extracting target classic track in complex environment
Peng Yijin,Dai Xiang,Huang Xifeng,Ding Hongli,Cui Ying,Yang Lu +5 more
- 14 Dec 2018
8
TL;DR: In this article, a method for extracting a target classic track in a complex environment is proposed, which is realized by the following technical scheme: reading target track data, prescreening according to value range constraints with different attributes in the track data and removing abnormal data items.
read more
Abstract: The invention provides a method for extracting a target classic track in a complex environment. The method provided by the invention can realize extraction of the target classic track under complex conditions such as strong data randomness, loud noise, different track lengths and large point track interval difference of the target track, and is realized by the following technical scheme: reading target track data, prescreening according to value range constraints with different attributes in the track data, and removing abnormal data items; rasterizing latitude-longitude grids, counting the point track density in each latitude-longitude grid, and extracting all the track data and filtering the track data with relatively high point track density; clustering the filtered track data with a multi-distance threshold DBSCAN clustering algorithm to form a plurality of track clusters; and setting a scanning line for each cluster, sequentially calculating an average value of intersection pointsof the scanning lines and the track to obtain the point tracks in the target classic track, and connecting the point tracks in order to obtain a target classic track extraction result.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Ship abnormal behavior identification method and device and terminal equipment
Wang Yuanyuan,Wang Xingping,Li Guilan,Luo Chengjie,Wei Saidong +4 more
- 22 Oct 2019
TL;DR: In this paper, a ship abnormal behavior identification method and device, and terminal equipment, and suitable for the technical field of data processing, and the method comprises the steps: obtaining the movement track samples of a plurality of sample ships, performing fusion analysis on the plurality of motion trail samples to obtain corresponding typical trails, and calculating a trail deviation coefficient group between the to-be-processed motion trail and the typical trail, the group comprising a position deviation coefficient, a heading deviation coefficient and a navigational speed deviation coefficient; and if a coefficient greater than or equal to a preset
2
Patent
flight path pattern mining method and device
Du Wenbo,Chen Yichong,Cao Xianbin,Zhu Xi +3 more
- 16 Jun 2020
TL;DR: In this article, a flight path pattern mining method and device for multi-flight operation environment is presented. And the method comprises the steps: firstly extracting flight path information, carrying out the data preprocessing, generating a core object according to the flight path density distribution, filtering noise, and finally displaying a mined flight path path pattern.
1
Patent
Ship historical track rule extraction method based on unsupervised clustering
Shen Changli,Sui Yuan,Wang Jun,Song Hailong,Duan Ran +4 more
- 06 Sep 2019
TL;DR: In this paper, a ship historical track rule extraction method based on unsupervised clustering is proposed, where track points are compressed through a track thinning algorithm, then track line segments are clustered through a density-based spatial clustering algorithm (DBSCAN).
1
Patent
Motion trajectory processing method, medium, apparatus, and device
Liu Genyi
- 17 Jun 2021
TL;DR: In this article, a motion trajectory processing method was proposed to reduce the cost of storage and processing of motion trajectories, improving motion-trajectory processing efficiency by determining the center position and intersection set of a plurality of motion trajectory trajectories.
Patent
General adjoint mode distributed mining method based on large-scale trajectory data
Zhang Jingwei,Liu Shaojian,Cheng Jing,Zhang Kangwei,Yang Qing +4 more
- 26 Jan 2021
TL;DR: In this paper, a general adjoint mode distributed mining method based on large-scale trajectory data is proposed, which comprises the following steps of: 1, establishing a trajectory data set; 2, performing distributed clustering on the trajectory data sets: performing density clustering through a DBSCANCD algorithm; 3, enabling theTCB algorithm to take a density clusterming result as input, and boundary points are reasonably divided by calculating the similarity among set members; and 4, performing mining on the trajectories.
Related Papers (5)
Wang Qiandong
- 31 Aug 2018
Pan Zixiao,Xie Xiaohua,Yin Dongsheng +2 more
- 23 Jun 2017
Tang Jun,Ruan Yirun,Qin Wanting,Lao Songyang,Bai Liang +4 more
- 05 Jun 2020
Yang Shuangquan,Liu Chang,Xie Yi +2 more
- 10 Dec 2019
Yang Min,Ai Tinghua,Yan Xiongfeng +2 more
- 27 Jun 2017