Analysis of Text Cluster Visualization in Emergent Self Organizing Maps Using Unigrams and Its Variations after Introducing Bigrams

2012 ◽  
pp. 967-978 ◽  
Author(s):  
Pramod Kumar Singh ◽  
Mahesh Machavolu ◽  
Kusum Bharti ◽  
Ranjith Suda
Keyword(s):  
Self Organizing Maps ◽  
Cluster Visualization ◽  
Self Organizing

Relational Fuzzy Self-Organizing Maps for Cluster Visualization and Summarization

2014 ◽  
Vol 22 (06) ◽  
pp. 913-940 ◽  
Author(s):  
Mohammed A. Khalilia ◽  
Mihail Popescu
Keyword(s):  
Gene Ontology ◽  
Membership Function ◽  
Daily Living ◽  
Relational Self ◽  
Activity Of Daily Living ◽  
Self Organizing Map ◽  
Self Organizing Maps ◽  
Cluster Visualization ◽  
Synthetic Datasets ◽  
Self Organizing

The notion of Best-Matching Unit (BMU) in the proposed Fuzzy Relational Self-Organizing (FRSOM) algorithm is replaced by a membership function where every neuron has a certain degree of matching to an input object. The FRSOM is an extension of the relational self-organizing map. In the proposed FRSOM we incorporate a monotonically increasing fuzzifier and a monotonically decreasing neighborhood kernel. Initially, FRSOM assigns winning neurons. However, as time progresses adjacent neurons begin communicating and sharing information about the stimulus received. The amount of information being shared at a given time is governed by the fuzzifier and the number of neurons sharing information is controlled by the neighborhood kernel. Additionally, in this paper we show that FRSOM is the relational dual of Fuzzy Batch SOM (FBSOM) followed by experimental results comparing both FBSOM and FRSOM on synthetic datasets. Then we will demonstrate the visualization and summarization capabilities of FRSOM on two real relational datasets, Gene Ontology and a patient data consisting of Activity of Daily Living score trajectories.

A Psychographic Segmentation of Kuwaiti Travelers Using Self-Organizing Maps

2019 ◽  
Vol 24 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Yvette Reisinger ◽  
Mohamed M. Mostafa ◽  
John P. Hayes
Keyword(s):  
Self Organizing Maps ◽  
Self Organizing

Self Organizing Maps, Pattern Recognition and Financial Crises

2011 ◽  
Author(s):  
Sylvain Barthelemy ◽  
Pascal Devaux ◽  
Francois Faure ◽  
Matthieu Pautonnier
Keyword(s):  
Pattern Recognition ◽  
Financial Crises ◽  
Self Organizing Maps ◽  
Self Organizing
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