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Intelligent Database Systems Lab Presenter: MIN-CHIEH HSIU Authors: NHAT-QUANG DOAN ∗, HANANE AZZAG, MUSTAPHA LEBBAH 2013 NN Growing self-organizing trees for autonomous hierarchical clustering
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Intelligent Database Systems Lab Outlines Motivation Objectives Methodology Experimental Result Conclusions Comments
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Intelligent Database Systems Lab Motivation Discovering the inherent structure and its uses in large datasets has become a major challenge for data mining applications.
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Intelligent Database Systems Lab Objectives This authors aim to build an autonomous hierarchical clustering system using the self-organization concept that runs autonomously without using parameters. GSoT: Growing Self-organizing Trees.
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Intelligent Database Systems Lab GSoT algorithm X = {xi; i = 1,..., N} a set of N observations. List denotes the set that contains all observations. Each tree si is associated with a weight vector, denoted by w si
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Intelligent Database Systems Lab GSoT algorithm function status (xi) initial: the default status before training. connected: node xi is currently connected to another node. disconnected: node xi was connected at least once but gets disconnected.
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Intelligent Database Systems Lab GSoT algorithm 1
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Intelligent Database Systems Lab GSoT algorithm 2
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Intelligent Database Systems Lab GSoT algorithm 3
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Intelligent Database Systems Lab GSoT algorithm 4
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Intelligent Database Systems Lab Experiment-performance
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Intelligent Database Systems Lab Experiment-Visual validation Its main advantage is that it provides simultaneous topological and hierarchical organization.
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Intelligent Database Systems Lab vote
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Intelligent Database Systems Lab
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Conclusions This paper presents a new approach that allows for simultaneous clustering and visualization. The tree structure allows the user to understand and analyze large amounts of data in an explorative manner.
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Intelligent Database Systems Lab Comments This paper presents GSoT improved interactive visualization and clustered efficiency for data. Application- Data visualization Clustering
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