Results 31 to 40 of about 1,387,882 (283)

Design and Application of an Attractiveness Index for Urban Hotspots Based on GPS Trajectory Data

open access: yesIEEE Access, 2018
Urban hotspots refer to regions where flourishing shopping centers are located, the travel volume is very large, and there is high traffic. The formation of hotspots is strongly correlated with many features, i.e., time, space, and the distribution of ...
Li Cai, Fang Jiang, Wei Zhou, Keqin Li
doaj   +1 more source

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

open access: yesISPRS 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   +3 more
doaj   +1 more source

Trajectory Mapping and Applications to Data from the Upper Atmosphere Research Satellite [PDF]

open access: yes, 1995
The problem of creating synoptic maps from asynoptically gathered trace gas data has prompted the development of a number of schemes. Most notable among these schemes are the Kalman filter, the Salby-Fourier technique, and constituent reconstruction ...
Elson, Lee   +10 more
core   +3 more sources

GeoSOT-Based Spatiotemporal Index of Massive Trajectory Data

open access: yesISPRS International Journal of Geo-Information, 2019
With the rapid development of global positioning technologies and the pervasiveness of intelligent mobile terminals, trajectory data have shown a sharp growth trend both in terms of data volume and coverage.
Chunyao Qian   +5 more
doaj   +1 more source

Improving Motorway Mobility and Environmental Performance via Vehicle Trajectory Data-Based Control

open access: yesIEEE Access, 2020
High cost and relatively low reliability of stationary sensors hinder the wide spread of advanced motorway traffic control measures. In this research, we propose a vehicle trajectory data based variable speed limit (VSL) controller to improve mobility ...
Yifei Zhao   +4 more
doaj   +1 more source

Show me the way to Monte Carlo: density-based trajectory navigation [PDF]

open access: yes, 2007
We demonstrate the use of uncertain prediction in a system for pedestrian navigation via audio with a combination of Global Positioning System data, a music player, inertial sensing, magnetic bearing data and Monte Carlo sampling for a density following ...
Murray-Smith, R.   +2 more
core   +2 more sources

Method for quickly building road network model of open-pit mine based on grid refinement

open access: yesMeitan xuebao
Constructing the road network in open-pit mining areas is a crucial step for intelligent scheduling and autonomous driving of trucks in these regions. However, given the intricate road conditions, extensive GPS trajectory data from mining vehicles, and ...
Qinghua GU   +5 more
doaj   +1 more source

Research on the Method of Urban Jobs-Housing Space Recognition Combining Trajectory and POI Data

open access: yesISPRS International Journal of Geo-Information, 2021
With the gradual emergence of the separation and dislocation of urban jobs-housing space, rational planning of urban jobs-housing space has become the core issue of national land-spatial planning. To study the existing relationship between workspaces and
Ya Zhang   +4 more
doaj   +1 more source

Prediction of Human Trajectory Following a Haptic Robotic Guide Using Recurrent Neural Networks

open access: yes, 2019
Social intelligence is an important requirement for enabling robots to collaborate with people. In particular, human path prediction is an essential capability for robots in that it prevents potential collision with a human and allows the robot to safely
Moon, Hee-Seung, Seo, Jiwon
core   +1 more source

Oddballs and a Low Odderon Intercept [PDF]

open access: yes, 2005
We report an odderon Regge trajectory emerging from a field theoretical Coulomb gauge QCD model for the odd signature JPC (P=C= -1) glueball states (oddballs).
E. R. Berger   +5 more
core   +3 more sources

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