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Music of the (p)Spheres
Published on 2007-02-255428 Views
This lecture is talking about **Nearest Neighbours** //Once upon a time...// **//Musica universalis//**//** **or **music of the spheres** is a medieval\\ philosophical concept that regards the proport
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Presentation
The Music of the (p) Spheres00:00
Nearest Neighbours00:19
Nearest Neighbour - Euclidean distance - Cosine similarity02:42
Random Clustering03:04
P-spheres05:03
Once upon a time05:45
Rank Aggregation08:53
Project docs on a random line09:39
Project query: closest doc gets one vote09:45
Repeat with a set of random lines10:05
Elections10:29
Evaluation11:18
Competitive Recall11:23
Competitive Similarity13:04
The dataset13:39
What we measure14:04
Points of Interest14:25
Random Clustering: 1 level of recursion is best15:47
Random Clustering: Centroids are best17:38
P-Spheres vs Random Clustering17:57
Quality vs Computational Effort18:00
Space:the Final Frontier18:56
The Bottomline19:32
Rank Aggregation vs Random Clustering20:16
Possible Explanation20:57
Future Directions21:52
A Challenge22:50