Title
Encoding network-constrained travel trajectories using routing algorithms
Abstract
This study proposes a generic encoder for network-constrained travel trajectories, and it implements two encoders by combining the proposed generic encoder with two routing algorithms, which reduce the size of a travel trajectory's path along a road network without modifying it. Although most previous trajectory compression methods introduce an error in the spatial component of trajectories to achieve compression, we argue that the path of a travel trajectory, i.e. the sequence of roads travelled, is crucial information for many applications. Experimental results obtained using a large-data set of real travel trajectories show that the two proposed encoders achieve high compression, outperforming a general purpose data compression method.
Year
DOI
Venue
2013
10.1504/IJKWI.2013.052724
I. J. Knowledge and Web Intelligence
Keywords
Field
DocType
generic encoder,proposed encoders,compression method,previous trajectory compression method,network-constrained travel trajectory,crucial information,real travel trajectory,proposed generic encoder,high compression,travel trajectory,routing algorithm,gis,global positioning systems,gps,shortest path,routing algorithms
Data mining,Shortest path problem,Computer science,Algorithm,Theoretical computer science,Encoder,Global Positioning System,Data compression,Trajectory,Map matching,Encoding (memory),Routing algorithm
Journal
Volume
Issue
Citations 
4
1
2
PageRank 
References 
Authors
0.42
19
3
Name
Order
Citations
PageRank
Pablo Martinez Lerin191.94
Daisuke Yamamoto2144.15
Naohisa Takahashi312327.99