The function diag constructs a diagonal matrix by selecting the diagonal elements of a matrix.
Fixing m = 1000, n = 250 and k = 4, we constructed matrix by selecting each element of the first 250 rows of as a random variable, setting the remaining rows equal to zero; thus, the first 250 rows of correspond to CpGs that are DMRs for k = 4 cell types.
We will study the three further directions: (1) to speed up selecting sub-matrices; (2) in this paper, we first select the sub-matrix set by selecting anchor points, then do the weighted matrix factorization for each sub-matrix.
They used the hyperspace analogue to language (HAL) [26], a method based on counting occurrences of words next to each other, thus obtaining a large count matrix, and then reducing the matrix dimensionality by selecting the dimensions with the highest variance (50 in their experiments).
We call (Xi _d) the stencil map, since entries of the matrix (Xi _d(A)) are obtained from the matrix A by selecting entries using a "stencil" consisting of a square grid of holes, see Fig. 6.
where y is the observed vector, x is an s-sparse vector (contains at most s non-zero elements) and Φ is an m×n (m ≪ n) measurement matrix which in our case is the partial DFT matrix formed by selecting N p rows.
With Pixelate you can either grab images from your phone or snap a picture, choose a color from the Color Matrix or by selecting one from an image.
Let X G denotes the matrix obtained by selecting the columns of X relative to the nonzero indexes dictated by the set { 0 } ∪ G.
We can get an m × n SKP measurement matrix Φ by selecting appropriately m rows from H for CS, here n = p × q, m < n.
Our attempt is to construct a symmetric matrix polynomial by selecting a suitable Jordan pair (X, T) with only finite eigenvalues.
