Make Patterns Pop Out of Heatmaps with Seriation (2018)

Re:Make Patterns Pop Out of Heatmaps with Seriation (2018) by cousin_it on Saturday July 03, 2021 @04:18AM (#27720149)

Interesting! I wonder how it would work on other kinds of data. For example, take a checkerboard image, rotate it (by, say, 15 degrees) and then seriate the result. What will it look like?

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Re:Make Patterns Pop Out of Heatmaps with Seriation (2018) by nicolaskruchten on Saturday July 03, 2021 @02:41PM (#27723775)

Should be easy to try! My expectation is that the TSP approach would recover the original image unless you added a lot of noise to it. Adjacent rows will still end up extremely similar to each other.

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Re:Make Patterns Pop Out of Heatmaps with Seriation (2018) by cousin_it on Saturday July 03, 2021 @04:00PM (#27724394)

My expectation is that it wouldn't, because in a tilted checkerboard image (or any other periodic image) there are many pairs of rows that are more similar than neighbors.

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Re:Make Patterns Pop Out of Heatmaps with Seriation (2018) by nicolaskruchten on Saturday July 03, 2021 @04:06PM (#27724454)

Try it and see :)

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