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A visual segmentation method for temporal smart card data

delete2017-01-17
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PRE
AI
M
Mohammad Sajjad Ghaemi
B
Bruno Agard
M
Martin Trépanier *
V
Vahid Partovi Nia
DOI:10.1080/23249935.2016.1273273delete
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Abstract

Abstract

En 中文
In many cities, worldwide public transit companies use smart card system to manage fare collection. Analysis of this acquisitive information provides a comprehensive insight of user's influence in the interactive public transit network. In this regard, analysis of temporal data, describing the time of entering to the public transit network is considered as the most substantial component of the data gathered from the smart cards. Classical distance-based techniques are not always suitable to analyze this time series data. A novel projection with intuitive visual map from higher dimension into a three-dimensional clock-like space is suggested to reveal the underlying temporal pattern of public transit users. This projection retains the temporal distance between any arbitrary pair of time-stamped data with meaningful visualization. Consequently, this information is fed into a hierarchical clustering algorithm as a method of data segmentation to discover the pattern of users.
Keywords:
Clustering
public transit
smart card
temporal pattern
projection
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Journal

Transportmetrica A-Transport Science cover
Transportmetrica A-Transport Science
IF:
3.1
Papers:
927
Citations:
2.2K

Organization

U
universite de montreal
Scholars:
4.6W
Papers: 3.8W
Citations: 46