March 2019
Intermediate to advanced
530 pages
12h 13m
English
X |
random variable |
x |
realization of X, observation |
X |
random (column) vector |
x |
realization of X (vector observation) |
data design matrix for X |
|
G, g, G, g, |
as above, designating pixel gray-values |
x⊤ |
transposed form of the vector x (row vector) |
║x║ |
length or (2-)norm of x |
x⊤y |
inner product of two vectors (scalar) |
x•y |
Hadamard (component-by-component) product |
xy⊤ |
outer product of two vectors (matrix) |
C |
matrix |
x⊤Cy |
quadratic form (scalar) |
|C| |
determinant of C |
tr(C) |
trace of C |
I |
identity matrix |
0 |
column vector of zeroes |
1 |
column vector of ones |
Λ |
Diag(λ1 … λN) (diagonal matrix of eigenvalues) |
partial derivative of ƒ (x) with respect to vector x |
|
f(x)|x=x* f(x) |
f(x) evaluated ... |
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