Interactive visual clustering of large collections of trajectories

One of the most common operations in exploration and analysis of various kinds of data is clustering, i.e. discovery and interpretation of groups of objects having similar properties and/or behaviors. In clustering, objects are often treated as points in multi-dimensional space of properties. Howeve...

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Vydané v:2009 IEEE Symposium on Visual Analytics Science and Technology s. 3 - 10
Hlavní autori: Andrienko, G., Andrienko, N., Rinzivillo, S., Nanni, M., Pedreschi, D., Giannotti, F.
Médium: Konferenčný príspevok..
Jazyk:English
Japanese
Vydavateľské údaje: IEEE 01.10.2009
Predmet:
classification
clustering
Clustering algorithms
Clustering methods
Data visualization
Functional analysis
geovisualization
Humans
Information analysis
Information systems
Joining processes
movement data
Scalability
scalable visualization
Spatio-temporal data
Spatiotemporal phenomena
trajectories
ISBN:9781424452835, 142445283X
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Popis
Shrnutí:One of the most common operations in exploration and analysis of various kinds of data is clustering, i.e. discovery and interpretation of groups of objects having similar properties and/or behaviors. In clustering, objects are often treated as points in multi-dimensional space of properties. However, structurally complex objects, such as trajectories of moving entities and other kinds of spatio-temporal data, cannot be adequately represented in this manner. Such data require sophisticated and computationally intensive clustering algorithms, which are very hard to scale effectively to large datasets not fitting in the computer main memory. We propose an approach to extracting meaningful clusters from large databases by combining clustering and classification, which are driven by a human analyst through an interactive visual interface.
ISBN:9781424452835
142445283X
DOI:10.1109/VAST.2009.5332584