University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
29
Cover Vol.5 No.1, February 2008
0
EN
10.22111/ijfs.2008.2905
http://ijfs.usb.ac.ir/article_2905.html
http://ijfs.usb.ac.ir/article_2905_0ba1ebddb100516d815ebe45cc27db3b.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
07
THE p-CENTER PROBLEM ON FUZZY NETWORKS AND
REDUCTION OF COST
1
26
EN
Sk. Md. Abu
Nayeem
Department of Mathematics, Jhargram Raj College, Jhargram,
West Bengal, 721 507, India
nayeemsma@gmail.com
Madhumangal
Pal
Madhumangal Pal, Department of Applied Mathematics with Oceanology and Computer
Programming, Vidyasagar University, Midnapore, West Bengal, 721 102, India
madhumangal@lycos.com
10.22111/ijfs.2008.313
Here we consider the
p-center problem on different types of fuzzy
networks. In particular, we are interested in the networks with interval and
triangular fuzzy arc lengths and vertex-weights. A methodology to obtain the
best satisfaction level of the decision maker who wishes to reduce the cost
within the tolerance limits is proposed. Illustrative examples are provided.
Fuzzy sets,Location,Networks
http://ijfs.usb.ac.ir/article_313.html
http://ijfs.usb.ac.ir/article_313_0738a752fd403495bad8e7740e8f8abd.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
08
INTELLIGENT TECHNIQUE OF CANCELING MATERNAL ECG IN
FECG EXTRACTION
27
45
EN
C.
KEZI SELVA VIJIILA
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING KARUNYA
UNIVERSITY, COIMBATORE, INDIA
vijila_2000@yahoo.com,vijila@karunya.edu
P.
KANAGASABAPATHY
DEAN MIT CAMPUS, ANNA UNIVERSITY, CHENNAL, INDIA
pks@mail.mitindia.edu
10.22111/ijfs.2008.314
In this paper, we propose a technique of artificial intelligence called adaptive neuro fuzzy inference system (ANFIS) for canceling maternal electrocardiogram (MECG) in fetal electrocardiogram extraction (FECG).This technique is used to estimate the MECG present in the abdominal signal of a pregnant woman. The FECG is then extracted by subtracting the estimated MECG from the abdominal signal. Performance of the proposed method in terms of mean square error, signal to noise ratio is compared with neural network. Our results show that this method is a simple and powerful means for the extraction of FECG.
Interference cancellation,Neuro fuzzy logic,Fetal ECG extraction
http://ijfs.usb.ac.ir/article_314.html
http://ijfs.usb.ac.ir/article_314_f843ad26f87fb8068ddf60da36570ec3.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
08
A COMMON FIXED POINT THEOREM FOR $psi$-WEAKLY
COMMUTING MAPS IN L-FUZZY METRIC SPACES
47
53
EN
R.
Saadati
Faculty of Sciences, University of Shomal, Amol, P.O. Box 731, Iran
rsaadati@eml.cc
S.
Sedghi
Department of Mathematics, Islamic Azad University-Ghaemshahr Branch,
Ghaemshar, P.O. Box 163, Iran
H.
Zhou
Department of Mathematics, Shijiazhuang Mechnical Engineering University,
Shijiazhuang 050003, People’s Republic of China
10.22111/ijfs.2008.315
In this paper, a common fixed point theorem for $psi$-weakly commuting
maps in L-fuzzy metric spaces is proved.
L-Fuzzy contractive mapping,Complete L-fuzzy metric space,Common
fixed point theorem,$\psi$-weakly commuting maps
http://ijfs.usb.ac.ir/article_315.html
http://ijfs.usb.ac.ir/article_315_aa6fa13685f0d564567d253b8e56287a.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
08
FUZZY IDEALS AND FUZZY LIMIT STRUCTURES
55
64
EN
Yueli
Yue
Department of Mathematics, Ocean University of China, Qingdao, 266071,
P. R. China
yueliyue@163.com
Jinming
Fang
Department of Mathematics, Ocean University of China, Qingdao,
266071, P. R. China
jinming-fang@163.com
10.22111/ijfs.2008.316
In this paper, we establish the theory of fuzzy ideal convergence on
completely distributive lattices and give characterizations of some topological
notions. We also study fuzzy limit structures and discuss the relationship
between fuzzy co-topologies and fuzzy limit structures.
Fuzzy co-topology,Fuzzy ideal,Fuzzy limit structure,Fuzzy remote
neighborhood system
http://ijfs.usb.ac.ir/article_316.html
http://ijfs.usb.ac.ir/article_316_e3d8093b3eb52427ca38bd04776b8583.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
08
SOME RESULTS OF INTUITIONISTIC FUZZY WEAK DUAL
HYPER K-IDEALS
65
78
EN
L.
Torkzadeh
Department Of Mathematics, Islamic Azad University
of Kerman, Kerman, Iran
ltorkzadeh@yahoo.com
M.
Abbasi
Department Of Mathematics, Islamic Azad University
of Kerman, Kerman, Iran
M. M. Zahedi
Zahedi
Department Of Mathematics, Shahid Bahonar University Of Kerman,
Kerman, Iran
zahedi mm@mail.uk.ac.ir
10.22111/ijfs.2008.317
In this note we consider the notion of intuitionistic fuzzy (weak) dual hyper K-ideals and obtain related results. Then we classify this notion according to level sets. After that we determine the relationships between intuitionistic fuzzy (weak) dual hyper K-ideals and intuitionistic fuzzy (weak) hyper K-ideals. Finally, we define the notion of the product of two intuitionistic fuzzy (weak) dual hyper K-ideals and prove several Decomposition Theorems.
Dual hyper K-ideal,Intuitionistic fuzzy dual hyper K-ideal
http://ijfs.usb.ac.ir/article_317.html
http://ijfs.usb.ac.ir/article_317_d5e1b17cf8849cf020dee0e8e092a8ed.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
08
GENERALIZATION OF ($epsilon $, $epsilon $ $vee$ q)−FUZZY SUBNEAR-RINGS AND
IDEALS
79
97
EN
P.
Dheena
Department of Mathematics, Annamalai University, Annamalainagar-
608002, India
dheenap@yahoo.com
S.
Coumaressane
Department of Mathematics, Annamalai University, Annamalainagar-
608002, India
coumaressane_s@yahoo.com
10.22111/ijfs.2008.318
In this paper, we introduce the notion of ($epsilon $, $epsilon $ $vee$ q_{k})− fuzzy subnear-ring which is a generalization of ($epsilon $, $epsilon $ $vee$ q)−fuzzy subnear-ring. We have given examples which are ($epsilon $, $epsilon $ $vee$ q_{k})−fuzzy ideals but they are not ($epsilon $, $epsilon $ $vee$ q)−fuzzy ideals. We have also introduced the notions of ($epsilon $, $epsilon $ $vee$ q_{k})−fuzzyquasi-ideals and ($epsilon $, $epsilon $ $vee$ q_{k})−fuzzy bi-ideals of near-ring. We have characterized($epsilon $, $epsilon $ $vee$ q_{k})−fuzzy quasi-ideals and ($epsilon $, $epsilon $ $vee$ q_{k})−fuzzy bi-ideals of nearrings.
Near ring,Fuzzy subnear-ring,Fuzzy ideal,Fuzzy quasi-ideal,Fuzzy bi-ideal ($\epsilon $,$\epsilon $ $\vee$ q)−fuzzy subnear-ring,($\epsilon $,$\epsilon $ $\vee$ q)−fuzzy ideal,($\epsilon $,$\epsilon $ $\vee$ q)−fuzzy quasi-ideal,($\epsilon $,$\epsilon $ $\vee$ q)−fuzzy bi-ideal,($\epsilon $,$\epsilon $ $\vee$ q_{k})−fuzzy subnear-ring,($\epsilon $,$\epsilon $ $\vee$ q_{k})− fuzzy ideal,($\epsilon $,$\epsilon $ $\vee$ q_{k})− fuzzy quasi-ideal,($\epsilon $,$\epsilon $ $\vee$ q_{k})− fuzzy bi-ideal
http://ijfs.usb.ac.ir/article_318.html
http://ijfs.usb.ac.ir/article_318_b1c8298fc1fdcba2269072e05efde125.pdf
University of Sistan and Baluchestan
Iranian Journal of Fuzzy Systems
1735-0654
5
1
2008
02
29
Persian-translation Vol.5 No.1, February 2008
101
106
EN
10.22111/ijfs.2008.2906
http://ijfs.usb.ac.ir/article_2906.html
http://ijfs.usb.ac.ir/article_2906_bce9f7073e7d8c924a02b83b217cc0f2.pdf