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Immersive Visualization of the Quality of Dimensionality Reduction

Babaee, Mohammadreza and Rigoll, Gerald and Datcu, Mihai (2013) Immersive Visualization of the Quality of Dimensionality Reduction. In: ISPRS Archives, XL-1 (W3), pp. 67-71. ISPRS. SMPR 2013, 5.-8. Oct. 2013, Tehran, Iran. ISBN DOI: 10.5194/isprsarchives-XL-1-W3-67-2013

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Official URL: http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-1-W3/79/2013/isprsarchives-XL-1-W3-79-2013.html

Abstract

Dimensionality reduction is the most widely used approach for extracting the most informative low-dimensional features from highdimensional ones. During the last two decades, different techniques (linear and nonlinear) have been proposed by researchers in various fields. However, the main question is now how well a specific technique does this job. In this paper, we introduce a qualitative method to assess the quality of dimensionality reduction. In contrast to numerical assessment, we focus here on visual assessment. We visualize the Minimum Spanning Tree (MST) of neighborhood graphs of data before and after dimensionality reduction in an immersive 3D virtual environment. We employe a mixture of linear and nonlinear dimension reduction techniques to apply to both synthetic and real datasets. The visualization depicts the quality of each technique in term of preserving distances and neighborhoods. The results show that a specific dimension reduction technique exhibits different performance in dealing with different datasets.

Item URL in elib:https://elib.dlr.de/88829/
Document Type:Conference or Workshop Item (Speech)
Title:Immersive Visualization of the Quality of Dimensionality Reduction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Babaee, MohammadrezaTechnical University MunichUNSPECIFIED
Rigoll, GeraldTechnical University MunichUNSPECIFIED
Datcu, Mihaimihai.datcu (at) dlr.deUNSPECIFIED
Date:2013
Journal or Publication Title:ISPRS Archives
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:XL-1
Page Range:pp. 67-71
Editors:
EditorsEmail
Arefi, H.UNSPECIFIED
Sharifi, A.UNSPECIFIED
Reinartz, Peterpeter.reinartz@dlr.de
Delavar, M.R.UNSPECIFIED
Publisher:ISPRS
ISBN:DOI: 10.5194/isprsarchives-XL-1-W3-67-2013
Status:Published
Keywords:Dimensionality reduction, immersive visualization, quality assessment, neighborhood graph
Event Title:SMPR 2013
Event Location:Tehran, Iran
Event Type:international Conference
Event Dates:5.-8. Oct. 2013
Organizer:University of Tehran
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By:INVALID USER
Deposited On:14 Apr 2014 15:10
Last Modified:31 Jul 2019 19:46

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