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Alla Petrakova & Steve Mussmann

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Presentation on theme: "Alla Petrakova & Steve Mussmann"— Presentation transcript:

1 Alla Petrakova & Steve Mussmann
5th Progress Report Alla Petrakova & Steve Mussmann

2 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.

3 Hurricane

4 Trucks

5 Starkey

6 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.

7 Hurricane Modified Hausdorff

8 Hurricane LCSS

9 Trucks Modified Hausdorff

10 Trucks LCSS

11 Intersection Modified Hausdorff

12 Intersection LCSS

13 Robust online trajectory clustering
-2012 Paper -View clusters as direction fields (unit vector fields). -Incrementally add trajectories and merge clusters

14 Hurricane

15 Trucks

16 Intersection

17 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

18 Vehicle Motion - Agglomerative DTW

19 Vehicle Motion - mod Hausdorff

20 Vehicle Motion - LCSS

21 Hurricane Dataset - Agglomerative DTW

22 Hurricane Dataset - Agglomerative LCSS

23 Trucks Dataset - DTW


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