Clustering is an essential task to unsupervised learning, its used to partition a dataset into groups of similar elements. In addition to traditional clustering methods, intuitionistic fuzzy c-means (IFCM) clustering algorithm has been studied to capturing uncertain information in the dataset. However, the IFCM algorithm has limitations such as the random initialization of cluster centers and the unrestricted influence of all samples on all cluster centers. Therefore, a robust algorithm named probability distribution of the minimal spanning tree based intuitionistic fuzzy c-means clustering algorithm using LINEX Hellinger distance is proposed for improving shortcomings of the IFCM. Firstly, the probability distribution of the minimal spanning tree algorithm organizes the initial cluster center based on the contribution of local density information from the data. Secondly, MST node probability distribution based IFCM using Hellinger distance, the membership degree boundary is assigned for the data samples on all cluster centers in the clustering process. Finally, the performance of the proposed modified IFCM algorithm is numerically validated using random dataset, partition coefficient and validation function are used to evaluate the validity of clustering also this paper compares the results of proposed method with the results of existing basic intuitionistic fuzzy c-means.
| Published in | International Journal of Management and Fuzzy Systems (Volume 12, Issue 2) |
| DOI | 10.11648/j.ijmfs.20261202.11 |
| Page(s) | 20-31 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2026. Published by Science Publishing Group |
Intuitionistic Fuzzy C-means, Probability Distribution, Minimal Spanning Tree, Hellinger Distance, LINEX Function
and
. Then Hellinger distance will be
. Compared to other distance metrices, such as Kullback-Leibler (KL) divergence ot total variation distance, Hellinger distance is more robust to outliers and in certain cases more accessible to compute. It finds widespread application in probability distribution comparisons and model fitting.
and
are two points of a MST and
is an edge between x and y then LINEXHellinger distance function between x and y is denoted by
and calculated using equation (1).
(1)
is the minimum spanning tree generated from dataset X of size N, where
are vertices corresponding to objects,
are edges corresponding to connection relationship between objects.
(2)
,
be the set of disjoint subtrees of LINEX measure MST.
.
.
from MST
is new disjoint subtrees (regions).
.
using average of points.
.
= Minimum standard deviation of edge density
.
= Maximum standard deviation of edge density
.
and non-membership
. An intuitionistic fuzzy set A in X, is written as
,
are the membership and non-membership degrees of an element in the set A with the condition
when
for every x in the set A, then the set A becomes a fuzzy set. Also indicated a hesitation degree,
which arises due to lack of knowledge in defining the membership degree of each element x in the set A and is given by
,
(3)
, where
denotes the intuitionistic fuzzy membership and
(4)
(5)
(6)
(7)
,
is a termination criterion between 0 and 1, where as k is the iteration steps. This procedure converges to a local minimum or a saddle point of
.
(8)
and
with constraint conditions
.
it is sufficient to minimize the following inner sum for fixed k:
is stationary for F only if
that yields to
(9)
(10)
(11)
(12)
(13)
it is sufficient to minimize the following inner sum for fixed i:
and setting the result to zero, we have the general form of updating center as
(14)
, where
denotes the intuitionistic fuzzy membership and
(15)
(16)
by continuous updating
and
until the difference in successive
values is very small
, where
is a small positive value between 0 and 1.
by using
, where m is the iteration count,
is a small number that can be set by the user.
and Validation function
are used to evaluate the validity of clustering
(17)
(18) Data | Intensity | Data | Intensity | ||||
|---|---|---|---|---|---|---|---|
S.No | X | Y | I(v) | S.No | X | Y | I(v) |
1 | 2.50 | 3.00 | 0.75 | 11 | 15.80 | 20.50 | 0.25 |
2 | 3.80 | 3.50 | 0.50 | 12 | 11.80 | 12.50 | 0.35 |
3 | 7.00 | 1.80 | 0.15 | 13 | 15.50 | 14.50 | 0.80 |
4 | 3.10 | 4.80 | 0.18 | 14 | 5.50 | 10.50 | 0.70 |
5 | 5.50 | 7.50 | 0.45 | 15 | 18.50 | 19.50 | 0.40 |
6 | 8.50 | 9.50 | 0.75 | 16 | 12.50 | 13.80 | 0.25 |
7 | 10.80 | 11.50 | 0.60 | 17 | 21.80 | 12.50 | 0.95 |
8 | 4.20 | 3.80 | 0.25 | 18 | 19.80 | 20.50 | 0.25 |
9 | 2.80 | 1.80 | 0.45 | 19 | 19.00 | 20.00 | 0.60 |
10 | 12.50 | 20.50 | 0.65 | 20 | 11.00 | 12.00 | 0.30 |
S.No | Co-ordinate | intensity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x | y | I(v) | vertex | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
1 | 2.50 | 3.00 | 0.75 | 1 | 0.0000 | 0.0408 | 0.2892 | 0.0942 | 0.3091 | 0.6035 | 0.8693 | 0.0867 | 0.0449 | 1.5020 |
2 | 3.80 | 3.50 | 0.50 | 2 | 0.0000 | 0.1761 | 0.0490 | 0.1841 | 0.4338 | 0.6711 | 0.0140 | 0.0780 | 1.3012 | |
3 | 7.00 | 1.80 | 0.15 | 3 | 0.0000 | 0.2876 | 0.3871 | 0.5657 | 0.7566 | 0.1521 | 0.2048 | 1.4524 | ||
4 | 3.10 | 4.80 | 0.18 | 4 | 0.0000 | 0.1455 | 0.4181 | 0.6427 | 0.0337 | 0.1618 | 1.2158 | |||
5 | 5.50 | 7.50 | 0.45 | 5 | 0.0000 | 0.1029 | 0.2566 | 0.1525 | 0.4303 | 0.7407 | ||||
6 | 8.50 | 9.50 | 0.75 | 6 | 0.0000 | 0.0539 | 0.3941 | 0.7374 | 0.4416 | |||||
7 | 10.80 | 11.50 | 0.60 | 7 | 0.0000 | 0.6146 | 1.0036 | 0.2621 | ||||||
8 | 4.20 | 3.80 | 0.25 | 8 | 0.0000 | 0.1144 | 1.2360 | |||||||
9 | 2.80 | 1.80 | 0.45 | 9 | 0.0000 | 1.6847 | ||||||||
10 | 12.50 | 20.50 | 0.65 | 10 | 0.0000 | |||||||||
S.No | Edges | LINEX HELLINGER distance | S.No | Edges | LINEX HELLINGER distance |
|---|---|---|---|---|---|
1 | (1,2) | 0.0408 | 11 | (20,12) | 0.0051 |
2 | (2,8) | 0.0140 | 12 | (12,16) | 0.0120 |
3 | (8,4) | 0.0337 | 13 | (16,13) | 0.0714 |
4 | (8,9) | 0.1144 | 14 | (13,15) | 0.1204 |
5 | (8,3) | 0.1521 | 15 | (15,19) | 0.0064 |
6 | (8,5) | 0.1525 | 16 | (15,18) | 0.0124 |
7 | (5,14) | 0.0619 | 17 | (15,11) | 0.0313 |
8 | (14,6) | 0.0767 | 18 | (11,10) | 0.0635 |
9 | (6,7) | 0.0539 | 19 | (11,17) | 0.3183 |
10 | (7,20) | 0.0136 |
S.No | Degree of MST | S.No | Degree of MST |
|---|---|---|---|
1 | 1 | 11 | 3 |
2 | 2 | 12 | 2 |
3 | 1 | 13 | 2 |
4 | 1 | 14 | 2 |
5 | 2 | 15 | 4 |
6 | 2 | 16 | 2 |
7 | 2 | 17 | 1 |
8 | 5 | 18 | 1 |
9 | 1 | 19 | 1 |
10 | 1 | 20 | 2 |
S.No | Edges | Edge density | S.No | Edges | Edge density |
|---|---|---|---|---|---|
1 | (1,2) | 0.0577 | 11 | (20,12) | 0.0102 |
2 | (2,8) | 0.0443 | 12 | (12,16) | 0.0240 |
3 | (8,4) | 0.0754 | 13 | (16,13) | 0.1428 |
4 | (8,9) | 0.2558 | 14 | (13,15) | 0.3405 |
5 | (8,3) | 0.3401 | 15 | (15,19) | 0.0128 |
6 | (8,5) | 0.4822 | 16 | (15,18) | 0.0248 |
7 | (5,14) | 0.1238 | 17 | (15,11) | 0.1084 |
8 | (14,6) | 0.1534 | 18 | (11,10) | 0.1100 |
9 | (6,7) | 0.1078 | 19 | (11,17) | 0.5513 |
10 | (7,20) | 0.0272 |
in the MST to generate subtree (clusters). Table 4, the longest edge weight 0.5513 connecting the data points 11 and 17 is find to be inconsistent one. By removing the inconsistent edge from the weighted LINEX HELLINGER_MST, data points partitioned into two subtrees or clusters
and
namely.
and
. Now minimal spanning tree produced outlier is {17}. Next to find minimum and maximum standard deviation of
then Cluster Separation value less than 0.5625 is valid. Secondly to remove next longest edge, weighted LINEX HELLINGER distance based MST partitioned into Three subtrees or clusters
,
and
namely
,
and
. Next to find minimum and maximum edge and to calculate standard deviation of
then Cluster separation value less than 0.5625 is valid. Here standard deviation of edge density
, Standard deviation of edge density
and Standard deviation of edge density
then
then we stop the removing inconsistent edges.. Finally minimal spanning tree produced three cluster center and 1 outliers. Then the center of the cluster and its convergence of standard FCM and LINEX HELLINGER distance based IFCM are determined under successive interations of experiments using data points. With the new efficient objective function based LINEX Hellinger distance induced weighted measure the termination value is achieved, with very less iteration and with much better performance in getting membership (Table 6) than standard FCM. Table 7 gives the number of iteration to achieve the results of cluster on the data points by standard FCM and weighted LINEX_IFCM. It is clear from the final cluster, membership (Table 6), scatter diagram (Figure 1), minimal spanning tree (Figure 2) that our proposed LINEX Hellinger _IFCM induced weighted degree of minimal spanning tree is much faster than the standard FCM and the method is converged fast to terminate condition with less run time. To test the effectiveness of weighted LINEX_IFCM, the edge density minimal spanning tree based IFCM is used as center. This is done to find out the fuzzy membership and appropriate number of clusters. Thus, we have concluded the final optimal clusters formed as 3 (Figure 3). This algorithm has also reduced the number of iterations. Best result is achieved by this measure fuzzy partition coefficient
maximum and validation function
minimum (Table 8). The weighted LINEX_IFCM clustering algorithm has the following membership value intimacy (Table 6), Co-ordinate (x,y) | intensity | appropriate cluster | |||||
|---|---|---|---|---|---|---|---|
S.No | x | y | I(v) | Mem-1 | Mem-2 | Mem-3 | |
1 | 2.50 | 3.00 | 0.75 | 1 | 0.9213 | 0.0523 | 0.0265 |
2 | 3.80 | 3.50 | 0.50 | 2 | 0.9895 | 0.0072 | 0.0032 |
3 | 7.00 | 1.80 | 0.15 | 1 | 0.7820 | 0.1444 | 0.0736 |
4 | 3.10 | 4.80 | 0.18 | 1 | 0.8808 | 0.0830 | 0.0362 |
5 | 5.50 | 7.50 | 0.45 | 2 | 0.4630 | 0.4292 | 0.1077 |
6 | 8.50 | 9.50 | 0.75 | 2 | 0.0794 | 0.8548 | 0.0658 |
7 | 10.80 | 11.50 | 0.60 | 2 | 0.0046 | 0.9858 | 0.0096 |
8 | 4.20 | 3.80 | 0.25 | 5 | 0.9710 | 0.0202 | 0.0087 |
9 | 2.80 | 1.80 | 0.45 | 1 | 0.9149 | 0.0551 | 0.0299 |
10 | 12.50 | 20.50 | 0.65 | 1 | 0.0559 | 0.2632 | 0.6809 |
11 | 15.80 | 20.50 | 0.25 | 3 | 0.0199 | 0.0788 | 0.9013 |
12 | 11.80 | 12.50 | 0.35 | 2 | 0.0269 | 0.8865 | 0.0866 |
13 | 15.50 | 14.50 | 0.80 | 2 | 0.0480 | 0.3319 | 0.6201 |
14 | 5.50 | 10.50 | 0.70 | 2 | 0.2367 | 0.6315 | 0.1318 |
15 | 18.50 | 19.50 | 0.40 | 4 | 0.0026 | 0.0093 | 0.9882 |
16 | 12.50 | 13.80 | 0.25 | 2 | 0.0490 | 0.7068 | 0.2442 |
17 | 21.80 | 12.50 | 0.95 | 1 | 0.0852 | 0.2753 | 0.6395 |
18 | 19.80 | 20.50 | 0.25 | 1 | 0.0161 | 0.0513 | 0.9326 |
19 | 19.00 | 20.00 | 0.60 | 1 | 0.0050 | 0.0171 | 0.9779 |
20 | 11.00 | 12.00 | 0.30 | 2 | 0.0171 | 0.9420 | 0.0410 |
No.of iterations | No.of clusters | |
|---|---|---|
FCM | 11 | 3 |
KFCM | 8 | 3 |
Edge density MST initialization method basedLINEX Hellingerdistance based Intuitionistic FCM | 3 | 3 |
Vpc | Vp | |
|---|---|---|
FCM | 0.8325 | 0.1825 |
KFCM | 0.8238 | 0.1720 |
MST initialization method based LINEXHellinger Intuitionistic FCM | 0.8889 | 0.0661 |
MST | Minimal Spanning Tree |
IFCM | Intuitionistic Fuzzy C-means |
LINEX | Linear Exponential |
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APA Style
Senthil, Nithya, Bhuvaneswari. (2026). Graph Theory Approach Probability Distribution Based Intuitionistic Fuzzy C-means Clustering Using LINEX Hellinger Distance and Its Applications. International Journal of Management and Fuzzy Systems, 12(2), 20-31. https://doi.org/10.11648/j.ijmfs.20261202.11
ACS Style
Senthil; Nithya; Bhuvaneswari. Graph Theory Approach Probability Distribution Based Intuitionistic Fuzzy C-means Clustering Using LINEX Hellinger Distance and Its Applications. Int. J. Manag. Fuzzy Syst. 2026, 12(2), 20-31. doi: 10.11648/j.ijmfs.20261202.11
AMA Style
Senthil, Nithya, Bhuvaneswari. Graph Theory Approach Probability Distribution Based Intuitionistic Fuzzy C-means Clustering Using LINEX Hellinger Distance and Its Applications. Int J Manag Fuzzy Syst. 2026;12(2):20-31. doi: 10.11648/j.ijmfs.20261202.11
@article{10.11648/j.ijmfs.20261202.11,
author = {Senthil and Nithya and Bhuvaneswari},
title = {Graph Theory Approach Probability Distribution Based Intuitionistic Fuzzy C-means Clustering Using LINEX Hellinger Distance and Its Applications},
journal = {International Journal of Management and Fuzzy Systems},
volume = {12},
number = {2},
pages = {20-31},
doi = {10.11648/j.ijmfs.20261202.11},
url = {https://doi.org/10.11648/j.ijmfs.20261202.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmfs.20261202.11},
abstract = {Clustering is an essential task to unsupervised learning, its used to partition a dataset into groups of similar elements. In addition to traditional clustering methods, intuitionistic fuzzy c-means (IFCM) clustering algorithm has been studied to capturing uncertain information in the dataset. However, the IFCM algorithm has limitations such as the random initialization of cluster centers and the unrestricted influence of all samples on all cluster centers. Therefore, a robust algorithm named probability distribution of the minimal spanning tree based intuitionistic fuzzy c-means clustering algorithm using LINEX Hellinger distance is proposed for improving shortcomings of the IFCM. Firstly, the probability distribution of the minimal spanning tree algorithm organizes the initial cluster center based on the contribution of local density information from the data. Secondly, MST node probability distribution based IFCM using Hellinger distance, the membership degree boundary is assigned for the data samples on all cluster centers in the clustering process. Finally, the performance of the proposed modified IFCM algorithm is numerically validated using random dataset, partition coefficient and validation function are used to evaluate the validity of clustering also this paper compares the results of proposed method with the results of existing basic intuitionistic fuzzy c-means.},
year = {2026}
}
TY - JOUR T1 - Graph Theory Approach Probability Distribution Based Intuitionistic Fuzzy C-means Clustering Using LINEX Hellinger Distance and Its Applications AU - Senthil AU - Nithya AU - Bhuvaneswari Y1 - 2026/11/12 PY - 2026 N1 - https://doi.org/10.11648/j.ijmfs.20261202.11 DO - 10.11648/j.ijmfs.20261202.11 T2 - International Journal of Management and Fuzzy Systems JF - International Journal of Management and Fuzzy Systems JO - International Journal of Management and Fuzzy Systems SP - 20 EP - 31 PB - Science Publishing Group SN - 2575-4947 UR - https://doi.org/10.11648/j.ijmfs.20261202.11 AB - Clustering is an essential task to unsupervised learning, its used to partition a dataset into groups of similar elements. In addition to traditional clustering methods, intuitionistic fuzzy c-means (IFCM) clustering algorithm has been studied to capturing uncertain information in the dataset. However, the IFCM algorithm has limitations such as the random initialization of cluster centers and the unrestricted influence of all samples on all cluster centers. Therefore, a robust algorithm named probability distribution of the minimal spanning tree based intuitionistic fuzzy c-means clustering algorithm using LINEX Hellinger distance is proposed for improving shortcomings of the IFCM. Firstly, the probability distribution of the minimal spanning tree algorithm organizes the initial cluster center based on the contribution of local density information from the data. Secondly, MST node probability distribution based IFCM using Hellinger distance, the membership degree boundary is assigned for the data samples on all cluster centers in the clustering process. Finally, the performance of the proposed modified IFCM algorithm is numerically validated using random dataset, partition coefficient and validation function are used to evaluate the validity of clustering also this paper compares the results of proposed method with the results of existing basic intuitionistic fuzzy c-means. VL - 12 IS - 2 ER -