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Alla Petrakova & Steve Mussmann
5th Progress Report Alla Petrakova & Steve Mussmann
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DivCluST 2012 algorithm. 2 steps:
-Shorten trajectories while keeping spatio- temporal structure -Cluster segments of shorter trajectories Similar in form to TraClus but uses speed in addition to spatial information.
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Hurricane
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Trucks
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Starkey
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Learning trajectory patterns by clustering
-2009 paper. -Mix and match trajectory similarity measures and clustering techniques. -"The choice of clustering method and distance measure was not important... though LCSS was consistently a top performer" -Implemented LCSS and modified Hausdorff with agglomerative clustering.
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Hurricane Modified Hausdorff
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Hurricane LCSS
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Trucks Modified Hausdorff
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Trucks LCSS
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Intersection Modified Hausdorff
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Intersection LCSS
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Robust online trajectory clustering
-2012 Paper -View clusters as direction fields (unit vector fields). -Incrementally add trajectories and merge clusters
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Hurricane
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Trucks
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Intersection
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Clustering of Vehicle Trajectories
paper (26 citations) - Proposes a twist on modified Hausdorff difference distance measure - Compares results against LCSS and DTW using Agglomerative and Spectral clustering
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Vehicle Motion - Agglomerative DTW
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Vehicle Motion - mod Hausdorff
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Vehicle Motion - LCSS
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Hurricane Dataset - Agglomerative DTW
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Hurricane Dataset - Agglomerative LCSS
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Trucks Dataset - DTW
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