Results 41 to 50 of about 867,994 (193)

Assessment of Heart Disease using Fuzzy Classification Techniques

open access: yesThe Scientific World Journal, 2001
In this paper we discuss the classification results of cardiac patients of ischemical cardiopathy, valvular heart disease, and arterial hypertension, based on 19 characteristics (descriptors) including ECHO data, effort testings, and age and weight.
Horia F. Pop, Tudor L. Pop, Costel Sarbu
doaj   +1 more source

A survey of kernel and spectral methods for clustering [PDF]

open access: yes, 2007
Clustering algorithms are a useful tool to explore data structures and have been employed in many disciplines. The focus of this paper is the partitioning clustering problem with a special interest in two recent approaches: kernel and spectral methods ...
Masulli, F.   +11 more
core   +1 more source

A Novel Hybrid SBM Clustering Method Based on Fuzzy Time Series

open access: yesIEEE Access, 2023
With the development of machine learning algorithm and fuzzy theory, the fuzzy clustering algorithm based on time series has received more and more attention. Based on the time series theory and considering the correlation of data attributes, it proposes
Ren-Long Zhang, Xiao-Hong Liu
doaj   +1 more source

A Novel Single Fuzzifier Interval Type-2 Fuzzy C-Means Clustering With Local Information for Land-Cover Segmentation

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In the process of land cover segmentation from remote sensing image, there are some uncertainties such as “significant difference in class density”, “different objects with same spectrum”, and “same object with ...
Chengmao Wu, Xiaokang Guo
doaj   +1 more source

Performance comparison of fuzzy and non-fuzzy classification methods

open access: yesEgyptian Informatics Journal, 2016
In data clustering, partition based clustering algorithms are widely used clustering algorithms. Among various partition algorithms, fuzzy algorithms, Fuzzy c-Means (FCM), Gustafson–Kessel (GK) and non-fuzzy algorithm, k-means (KM) are most popular ...
B. Simhachalam, G. Ganesan
doaj   +1 more source

Comparing clustering models in bank customers: Based on Fuzzy relational clustering approach [PDF]

open access: yesAccounting, 2016
Clustering is absolutely useful information to explore data structures and has been employed in many places. It organizes a set of objects into similar groups called clusters, and the objects within one cluster are both highly similar and dissimilar with
Ayad Hendalianpour   +2 more
doaj   +1 more source

Accelerating fuzzy clustering [PDF]

open access: yesInformation Sciences, 2009
This paper extends earlier work [C. Borgelt, R. Kruse, Speeding up fuzzy clustering with neural network techniques, in: Proceedings of the 12th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE'03, St. Louis, MO, USA), IEEE Press, Piscataway, NJ, USA, 2003] on an approach to accelerate fuzzy clustering by transferring methods that were ...
openaire   +2 more sources

fcvalid: An R Package for Internal Validation of Probabilistic and Possibilistic Clustering

open access: yesSakarya University Journal of Computer and Information Sciences, 2020
In exploratory data analysis and machine learning, partitioning clustering is a frequently used unsupervised learning technique for finding the meaningful patterns in numeric datasets.
Zeynel Cebeci
doaj   +1 more source

Fuzzy Relational Fixed Point Clustering [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2009
The proposed relational fuzzy clustering method, called FRFP ( fuzzy relational fixed point), is based on determining a fixed point of a function of the desired membership matrix. The ethod is compared to other relational clustering methods.
Roelof K. Brouwer
doaj   +1 more source

A Novel Linguistic Relational Fuzzy C-Means

open access: yesIEEE Access
In real-world applications, sometimes there are uncertainties in the data sets whether from the collection process or from the natural languages. Moreover, the data may come in the form of fuzzy relation.
Peerawich Phaknonkul   +2 more
doaj   +1 more source

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