A Google Tech Talk by Laurens van der Maaten, co-creator of t-SNE, on visualizing high-dimensional data by mapping it to two dimensions. It explains how the technique works and how it compares with other visualization approaches.
Why Hacker News points people here: HN people point to it as the canonical explanation from the method's author whenever t-SNE comes up.
“there's a really interesting Google techtalk on how it works”HN comment, 2013
“there's a really interesting Google techtalk on how it works”
Interesting talk on how t-SNE works.
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Barnes-Hut uses a quadtree, doesn't it? I don't know whether the code was adapted to use an octree in 3D instead; maybe it was? FWIW there's a really interesting Google techtalk on how it works: this video
Cites itzorenNov 2016
“I've seen this”
Commenter has seen the t-SNE explanation.
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Thanks for the offer. I've seen this this video and I think I understand how it works but still think the results are amazing.
Cites itvankesselAug 2019
“clever projections like t-sne to reduce the number of dimensions while retaining some of the structure of the data”
t-SNE as dimension reduction technique.
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Use non spatial dimensions as well, like color, size, and shape. You can also use clever projections like t-sne to reduce the number of dimensions while retaining some of the structure of the data ( this video )