Vida Overview

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VIDA EXPE RT OVERVIEW

VIPA I XPI F T 1 0ViDaExpen is a computer program for visualizing

mulidimensional datasets.The main purpose o the program is to represent

tables o data in visual and understandable fonn.The basic mathematical method o the

visualization is Method o Elastic Maps that is anadvanced analogue o wellknown method of Self-Organizing Map s.

Besides ViDaExpcn implements many other dataanalysis techniques.


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VIDAEXPERT OVERVIEW

ViDaExpcn allows to work with datatables storedin popular database fonnats.

ViDaExpcn provides many possibilities to workwith a datatable: selecting records, marking records,soning records etc, Fimll1y every reeord of t b1c isrepresented as a point with definite color, size andshape.

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VID EXPERT OVERVIEW

When a datatable become a set o pointsViDaExpen can show it in different 3D linear spacesincluding spaces spanned by principal components.

ou can rotate shift and zoom 3D image o pointdistribution understanding what docs it look like.


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VIDAEXPERT OVERVIEW

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Thc next step is illeur visualization. For thispurpose VtOaExpcn constructs 2 non-lincar screenin multidimcnsional spacc - elustic map It is asmooth manifold along what thc darapoints arcsituatcd most closely. It also can be calledapproximation oflhe 2 principal manifold .


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VIDAEXPERT OVERVIEW

'. 0_- p " : .~ ~Then datapoints can be proje ted onto the

manifold and shown n intemal2D coordinates of themanifold

It gIves visual 2D representation of thedistribution of data points n multidimensional space


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VIDA EXPERT OVERVIEW

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To make the pictur more infonnative you can

apply colorings showing values of any function nmuldidirnensional space. For x ample values ofdataspace coordinates.


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VID EXPERT OVERVIEW

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Much more sophisticated functions also can edisplayed. For example values of density estimation.


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VID XP RT OVERVIEW

Another cxamplc: visualizing results o applyinglincar discrimination analysis


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VIDA EXPERT OV RVI W

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VID XP RT OVERVIEW

The coloring by values o coordinates can be maderelief to evaluate how close the map approximatesdistribution o datapoints by this coordinate


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VIDAEXPERT OVERVIEW

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Or you can study the fonn and position o colorcUmap in the original dataspace.


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VlD EXPERT OVERVIEW

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One o the unique features o ViOaExpen is thepossibility o creating m ps with different topologyfor example spherical maps.


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Practice shows that it c n be uscful1 In practicalapplications.


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VID EXPERT OVERVIEW

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ou can even try 3D dimensional clastic maps.


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VID ExrERT OVERVIEW

As a bonus, there are someunique thechniques of data analysisimplemented in ViDaExpert, such asLin ear Separation Machine forautomatic extraction of desicionrules

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VID EXPERT OVERVIEW

3 e.tvnbeor analyzing di stance diagramms


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ViPp., J,x?ert 10 data vi sual iz tion software.Conditions of distribution:

free for non commercial use.Created yZinovyev Andrey auranit otmail.com,

Pitenko Alexander [email protected].

Vida Overview

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