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Wireless Communications and Mobile Computing
/
2019
/
Article
/
Alg 4
Research Article
Estimating Network Flow Length Distributions via Bayesian Nonnegative Tensor Factorization
Algorithm 4
Variational Bayes algorithm.
(1)
function
ThinNTF_VB (
,
S
,
)
//Randomly initialize factors and latent tensor
(2)
⟵ RandInit (
)
(3)
repeat
(4)
Calculate
and
as in equations (
21
)–(
23
).
(5)
Calculate
and
similarly.
(6)
Calculate
and
similarly.
(7)
Calculate
as in equation (
24
).
(8)
Calculate
similarly.
(9)
Calculate
similarly.
(10)
Calculate
as in equation (
19
).
(11)
Calculate lower bound
(12)
until
Max iterations are reached or lower bound converged
(13)
return F
,
H
,
D
,