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Steps:
1. Add `SammonMapping` value to the `DimensionReductionMethod` enum [here](https://github.com/shogun-toolbox/shogun/blob/develop/src/shogun/lib/tapkee/tapkee_defines.hpp#L115).
2. If needed - a…
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rasbt updated
4 years ago
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To me it seems there is something wrong with the sammon mapping. The error does not decrease and it seems to do not deliver good results if pca is not used.
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Implementation of the following:
- [x] Principal Component Analysis (PCA)
- [x] Principal Component Regression (PCR)
- [x] Partial Least Squares Regression (PLSR)
- [ ] Sammon Mapping
-…
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Hello! I want to make a sammon plot of my trained SOM to view the location of the lattice nodes in order to determine whether the SOM is "twisted" or not. I have come across examples in the issues sec…
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Looking at Visumap, the majority of those algorithms are found in scikit-learn or scikit-bio, namely
**Ordination**
- [SMACOF](https://github.com/scikit-learn/scikit-learn/blob/master/sklearn/manifol…
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Here few separate problems needs to be discussed and taken into account:
1. The first problem is (as far as I understand) that in described situation problem is that 'springs' between considered po…
mk45 updated
5 months ago
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I was going to ask about Sammon Mapping and just saw this JS implementation https://observablehq.com/@jonnydedwards/animated-sammon-map
- WP https://en.wikipedia.org/wiki/Sammon_mapping
- python i…
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The SammonMapping has an unexpected escape condition:
if (lambda < 1E-3) {
logger.info(String.format("Sammon's Mapping stress after %3d iterations: %.5f", iter-1, stress));
break;
}
The…
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Hi,
I'm running into an interesting problem where each iteration that I run the same code, I get a subtly different output. Am I leaving a critical argument out of the command that will correct fo…