CLUSTERING GEO-DATA CUBES
R. ZURITA-MILLA (1), E. IZQUIERDO-VERDIGUIER (2), S. GIRGIN (1),
F. NATTINO (3), O. KU (3), M. W. GROOTES (4) AND R. GONCALVES (4)
(1) FACULTY OF GEO-INFORMATION SCIENCE AND EARTH OBSERVATION (ITC), UTWENTE, NL. (2) UNIVERSITY OF NATURAL RESOURCES AND LIFE SCIENCES (BOKU) AT.
(3) NETHERLANDS ESCIENCE CENTER (NLESC), NL. (4) HELMHOLTZ CENTRE POTSDAM (GFZ), DE
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EXPLORING DATA CUBES
Spatial clustering
SPATIO-TEMPORAL CLUSTERING
3 Time Space T1 T2 T3 T4 … Tn S1 213 221 63 194 … 216 S2 100 97 16 179 … 186 S3 33 67 239 15 … 111 S4 161 46 237 52 … 142 … ... ... ... ... ... ... Sn 17 123 216 174 … 210 Time Space T1 T2 T3 T4 … Tn S1 213 221 63 194 … 216 S2 100 97 16 179 … 186 S3 33 67 239 15 … 111 S4 161 46 237 52 … 142 … ... ... ... ... ... ... Sn 17 123 216 174 … 210Time Space T1 T2 T3 T4 … Tn S1 213 221 63 194 … 216 S2 100 97 16 179 … 186 S3 33 67 239 15 … 111 S4 161 46 237 52 … 142 … ... ... ... ... ... ... Sn 17 123 216 174 … 210
Temporal clustering
SPATIO-TEMPORAL CLUSTERING
4 Time Space T1 T2 T3 T4 … Tn S1 213 221 63 194 … 216 S2 100 97 16 179 … 186 S3 33 67 239 15 … 111 S4 161 46 237 52 … 142 … ... ... ... ... ... ... Sn 17 123 216 174 … 210S-T clustering
Co-clustering
à
‘blocks’ of rows and columns
Hartigan, 1972 & Banerjee et al., 2007 Wu, Zurita-Milla et al. 2015; 2016 Wu, Cheng, Zurita-Milla & Song, 2020
Time Space T1 T2 T3 T4 … Tn S1 213 221 63 194 … 216 S2 100 97 16 179 … 186 S3 33 67 239 15 … 111 S4 161 46 237 52 … 142 … ... ... ... ... ... ... Sn 17 123 216 174 … 210 5
SPATIO-TEMPORAL CLUSTERING
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CO-CLUSTERING
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CO-CLUSTERING
Re-ordered data matrix
Data cube
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CO-CLUSTERS
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REFINED CO-CLUSTERS
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SPATIAL PATTERNS AND THEIR TIMELINE
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TRI-CLUSTERING
Data cubes
Georeferenced
time series
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TRI-CLUSTERING
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IRREGULAR TRI-CLUSTERS
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CGC PACKAGE
github.com/phenology/cgc
Clustering Geo-Data Cubes
- Co-clustering
- (Tri-clustering)
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Novel data mining approaches
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Concurrent analysis of multi-dimensional data cubes
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Mine and represent the main S-T-A patterns
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Scientific outcomes (Work in progress)
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Open source code
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Publications
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OUR CONTRIBUTION
github.com/phenology/cgc
