Fuzzy associative memories: A design through fuzzy clustering

In this study, we discuss a design of fuzzy associative structures (memories) realized within the framework of fuzzy clustering. Associative memories are inherently direction-free structures (and the recall of objects can be realized for any variable or a subset of variables). Fuzzy clustering being...

Full description

Saved in:
Bibliographic Details
Published in:Neurocomputing (Amsterdam) 2016-01, Vol.173, p.1154-1162
Main Authors: Zhong, Chunfu, Pedrycz, Witold, Li, Zhiwu, Wang, Dan, Li, Lina
Format: Article
Language:English
Subjects:
Fuzzy associative memories
Fuzzy clustering
Fuzzy correlation matrix
Optimization of recall
Reconstruction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this study, we discuss a design of fuzzy associative structures (memories) realized within the framework of fuzzy clustering. Associative memories are inherently direction-free structures (and the recall of objects can be realized for any variable or a subset of variables). Fuzzy clustering being direction-free comes here as a sound design alternative. Two recall proposals are studied: one involves prototypes (being the key descriptors of the structure of the data) and their activation in the presence of partially available data to be recalled whereas the second proposal involves fuzzy correlation matrices and in principle exhibits some resemblance with a standard correlation associative memories. In the setting of associative memories, Fuzzy C-Means (FCM) is studied. The recall error is discussed with regard to the essential parameters of the FCM (the number of clusters and the fuzzification coefficient). Furthermore we discuss an optimization of the distance function used in the clustering algorithm realized with regard to the recall error. Experimental results are provided along with a comparative study involving correlation-based associative memories.
ISSN:0925-2312
1872-8286
DOI:10.1016/j.neucom.2015.08.072