Table 1 Glossary of variables and symbols used in the paper.

From: A Protein Interaction Information-based Generative Model for Enhancing Gene Clustering

Logic Symbols

Values

Π(P)

Set of solutions at Pareto front

\({\pi }_{M}^{(P)}\)

Mth solution(partitioning) at Pareto front

\({\mathbb{M}}\)

Proposed model

G

Gene expression profile

N

Number of genes in the gene expression profile

F

Number of samples(features) in each gene

gi

ith gene of the gene expression profile

\(\widehat{G}\)

Prepossessed gene expression profile

\(\widehat{N}\)

Number of prepossessed gene

S

Non-dominated solutions of the proposed multi-objective optimization based clustering

D

Number of non-dominated solutions

\({\mathbb{MO}}\)

Proposed multi-objective optimization based clustering technique

Li

Label of ith non-dominated solution

λ

Weak label function

pθ

Proposed generative model

\({\mathbb{G}}\)

Factor graph

Λ

Label matrix of size \(\widehat{N}\times (D\ +\ 3)\)

Y

Vector of final probabilistic labels

ϕ

Factors of the factor graph

θ

Parameters of the factor graph

P

Pareto front

αij

Confidence score of the interaction between the proteins gi and gj

K

Number of cluster centers in a solution

Ci

ith cluster of any solution or partitioning

f

Objective function