Spatio-temporal data based moving object similarity calculation method and system

A similarity calculation and moving object technology, applied in the information field, can solve problems such as ignoring the activity characteristics of moving objects

Active Publication Date: 2017-09-22
江苏和瑞鑫智能科技有限公司
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing methods generally ignore the activity characteristics of moving objects, the present invention discloses a moving object simila

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spatio-temporal data based moving object similarity calculation method and system
  • Spatio-temporal data based moving object similarity calculation method and system
  • Spatio-temporal data based moving object similarity calculation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] In this embodiment, the real Geolife dataset is taken as an example, and the method for measuring the similarity of moving objects based on spatiotemporal data is used to calculate the similarity of moving objects. The Geolife dataset contains the trajectories of 182 moving objects in 5 years, with a total of 17,621 trajectories and a total length of more than 1.29 million kilometers. In this paper, hot spots are identified in the Beijing area (39.8°N~40.05°N, 116.30°E~116.50°E) where the trajectories are mainly distributed. The distribution density of trajectories in this area is as follows: Figure 5 shown. In this embodiment, the method for measuring the similarity of moving objects based on spatio-temporal data is used to Figure 5 The similarity calculation is performed on the moving object activity trajectory shown, which specifically includes the following steps:

[0093] 1) In this embodiment, 5000 activity trajectories of 50 experimental participants were sel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a spatio-temporal data based moving object similarity calculation method and system. The method is to discover similarity of moving objects by mainly utilizing the track data of the moving objects such as pedestrians and users based on information such as positions and paths of the activities of the moving objects. The spatio-temporal data based moving object similarity calculation method comprises two parts as follows: the first part of sequencing spatio-temporal tracks by utilizing a pre-defined activity hotspot and converting an original track point sequence into an activity sequence; and the second part of discovering an activity rule of the moving objects by utilizing the activity sequence of the moving objects obtained in the first part and further calculating the integral activity habit similarity of the moving objects. The system comprises three modules as follows: a track data uploading module, a track sequencing module and a moving object similarity calculation module. The spatio-temporal data based moving object similarity calculation method and system have wide application foreground in multiple fields such as precise advertisement recommendation, intelligent traffic management and urban position service.

Description

technical field [0001] The invention belongs to the field of information technology, in particular to a method and system for calculating the similarity of moving objects based on spatio-temporal data. Background technique [0002] In recent years, with the continuous development and wide application of wireless communication technologies such as RFID and GPS, various moving objects around the world can be effectively located and tracked, resulting in a large amount of moving object trajectory data, and these data There is a wealth of information in it, which urgently needs researchers to expand and analyze it. A moving object spatiotemporal trajectory is a sequence that records the location, properties, and time of a moving object. Time, space, and attribute are the three basic characteristics of geographic phenomena, and they are also the three basic data components of GIS databases. Although in essence, the trajectory of a moving object is continuous; however, acquisiti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06K9/62
CPCG06F18/22
Inventor 袁冠张艳梅王志晓吕绍仟夏士雄
Owner 江苏和瑞鑫智能科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap