incidence matrix


Also found in: Wikipedia.

incidence matrix

[′in·səd·əns ‚mā·triks]
(mathematics)
In a graph, the p × q matrix (bij ) for which bij = 1 if the i th vertex is an end point of the j th edge, and bij = 0 otherwise.
References in periodicals archive ?
Where y was the vector of phenotype for the analyzed blood hemoglobin level, [beta] was the vector of fixed effects parameter that included the breed and genotype effect, X was its incidence matrix, b was the mixed vector of random component that included the sires effect and dam effect within sires, and Z was its incidence matrix, and e was the vector of residual effect.
a) is the location parameter vector of order s with b (defined as fixed effects from the frequency point of view), and order s with a (as random direct additive genetic effects); W is the known incidence matrix of order r x s; I is the identity matrix of order r x r and [[sigma].
d] = (mxn) sized matrix derived from incidence matrix, consisting of 1's and other element values equal to zero.
2], respectively; and W1 and W2 are known incidence matrix relating permanent environmental effects of the cow in [c.
p] + p), where G is the link/O-D incidence matrix for the rapid transit mode.
First, some weights are assigned to a synthetic degree of gray incidence matrix to analyze the levels of intensity (weak or strong) in each company along with bankruptcy [19].
According to Equations (3)--(8), absolute incidence matrix A, relative incidence matrix B and synthetic incidence matrix C are calculated as follows.
A good starting point for the optimal selection of available objects is analysis of these activities on the basis of Petri Nets, with an incidence matrix and reachable markings.
Also, the incidence matrix of [GAMMA] is a t x v matrix whose rows are the codewords in [GAMMA].
Stembridge [Ste1, Section 7] showed that for n = m = 7, if S' is the complement of the incidence matrix of the Fano plane, then the number of invertible 7 x 7 matrices in [F.
binary 0 or 1) entries of part-machine incidence matrix alone [1-11].