Using random projections for covariance matrices is an interesting question that is an active area of research. If R∈Rk×p is an orthogonal random matrix, then projecting the data using R preserves the hypothe
Before answering this question, let us look at some simpler choices. We could simply use the diagonal of A in place of M, i.e. what we already named the Jacoby pre-conditioner. This does not require solving any linear systems, thus it does not add any computational overhead to the conj...
However, the question whether headache is just coincidental or may be secondary due to inflammatory cerebral multiple sclerosis lesions is yet to be clarified. This study intended to evaluate the distribution of cerebral lesion sites and the potential presence of specific lesion clusters in patients ...
Even when a collapsed subcode with multiple codings is present, only one will be counted. Sum –Displays the sum of rows and columns. Sort columns by similarity of code pattern and sum of frequencies –By default, the order of columns is based on the “Document System”. Clicking this ...
It looks like you are coding that first syntax since you have conditions to test in the while statement. But then it looks like you have a simple for-loop inside the while loop and you simply want to exit the while loop after this for-loop finishes? And y...
Now, there is reason why I don't want to use a max() or similar built-in function to find the maximum value of a matrix. My question is following: Imagine, we have a matrix, let's call it 'gauss' and looks like this: 테마복사 gauss = 0 0.2000 0 0.5000 1.0000 0.6000 0...
This question was solved by Wootters48 in the context of recon- structing the density matrix ρˆ for a bipartite quantum system. He showed that the measurements carried out on each subsystem to reconstruct its reduced density matrix are sufficient to reconstruct ρˆ when carried out jointly...
Sign in to answer this question.See Also MATLAB Answers Why is pagemtimes slower than just coding up the matrix multiplication? 1 Answer How to solve linear equation using GPU? 2 Answers Why is pagemtimes slower on GPU than a CPU? 3 Answers Entire Website ...
Search before asking I have searched the YOLOv5 issues and discussions and found no similar questions. Question I've done model training using YOLOv5 and got pretty good performance. Therefore I want to make a confusion matrix for my nee...
Xu and Wu (2001) proposed to obtain the GWLP using a model matrix based on a normalized orthogonal coding (which is, e.g., implemented in function contr.XuWu from the R package DoE.base, Grömping, 2022a): The GWLP for an OA with m columns is the row vector (A0,A1,A2,…,Am...