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_Original ticket http://projects.scipy.org/scipy/ticket/1732 on 2012-09-20 by trac user inde, assigned to unknown._
Hi,
this is for scipy 0.11.0rc2. It seemed to be a normal release on sourceforge, b…
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----------Broader impacts _______________
0. Modeling/simulation people
--Curse of dimensionality (it's been lifted)
--you should not be afraid of musculoskeletal modeling at scale
0. Cost functio…
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Hard crash with memory bug and rscript termination under Windows.
Example:
``` R
require(caret)
require(mboost)
require(gbm)
require(rf)
# load iris set
data(iris)
dim(iris)
# works
m
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from @alanedelman:
We really should think carefully about how the transpose of a vector should dispatch the various `A_*op*_B*` methods. It must be possible to avoid new types and ugly mathematics. F…
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I just had a look at caret and made a list of learners, which have not yet been integrated into mlr (at least as far as I know).
``` r
Package Function …
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I'm using KDTrees for implementing an iterative closest point algorithm for point cloud matching. `knn` with k=1 works very well for this, but I've found that there can be a large performance hit whe…
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```
In subspace.cpp,around line 310:
double s = 1.00 / sqrt(eigenvalues[i][0]);
If the eigenvalue is zero or a negative number, the result will not be correct.
I am doing a PCA for sampletype img so…
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```
In subspace.cpp,around line 310:
double s = 1.00 / sqrt(eigenvalues[i][0]);
If the eigenvalue is zero or a negative number, the result will not be correct.
I am doing a PCA for sampletype img so…
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PCA, SVD(其他low rank*), LDA(Topic Model), K-means, Sparse Coding,Hidden Layer of Neural Network。。。等等这一大类问题应该都可以用一套理论来解释其几何意义,与向量空间、矩阵、特征值和特征向量有关的,有阐述最本质原理的文章? 比特征值和特征向量更低层的?@好东西传送门
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