NDLI: Inverse MDS: Inferring Dissimilarity Structure from Multiple Item Arrangements

Content Provider	PubMed Central
Author	Kriegeskorte, Nikolaus Mur, Marieke
Copyright Year	2012
Abstract	The pairwise dissimilarities of a set of items can be intuitively visualized by a 2D arrangement of the items, in which the distances reflect the dissimilarities. Such an arrangement can be obtained by multidimensional scaling (MDS). We propose a method for the inverse process: inferring the pairwise dissimilarities from multiple 2D arrangements of items. Perceptual dissimilarities are classically measured using pairwise dissimilarity judgments. However, alternative methods including free sorting and 2D arrangements have previously been proposed. The present proposal is novel (a) in that the dissimilarity matrix is estimated by “inverse MDS” based on multiple arrangements of item subsets, and (b) in that the subsets are designed by an adaptive algorithm that aims to provide optimal evidence for the dissimilarity estimates. The subject arranges the items (represented as icons on a computer screen) by means of mouse drag-and-drop operations. The multi-arrangement method can be construed as a generalization of simpler methods: It reduces to pairwise dissimilarity judgments if each arrangement contains only two items, and to free sorting if the items are categorically arranged into discrete piles. Multi-arrangement combines the advantages of these methods. It is efficient (because the subject communicates many dissimilarity judgments with each mouse drag), psychologically attractive (because dissimilarities are judged in context), and can characterize continuous high-dimensional dissimilarity structures. We present two procedures for estimating the dissimilarity matrix: a simple weighted-aligned-average of the partial dissimilarity matrices and a computationally intensive algorithm, which estimates the dissimilarity matrix by iteratively minimizing the error of MDS-predictions of the subject’s arrangements. The Matlab code for interactive arrangement and dissimilarity estimation is available from the authors upon request.
Related Links	http://dx.doi.org/10.3389/fpsyg.2012.00245
Starting Page	245
File Format	PDF
ISSN	16641078
e-ISSN	16641078
Journal	Frontiers in Psychology
Volume Number	3
Language	English
Publisher	Frontiers Research Foundation
Publisher Date	2012-01-01
Access Restriction	Open
Rights Holder	Frontiers Research Foundation
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Psychology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Inverse Gillespie for inferring stochastic reaction mechanisms from intermittent samples

Inferring assembly-curving trends of bacterial micro-compartment shell hexamers from crystal structure arrangements

Simultaneous classification and multidimensional scaling with external information

Item Selection, Evaluation, and Simple Structure in Personality Data

Inferring human population size and separation history from multiple genome sequences

Inferring species roles in metacommunity structure from species co-occurrence networks

Analysis of differential item functioning in the depression item bank from the Patient Reported Outcome Measurement Information System (PROMIS): An item response theory approach

Inferring neural connectivity from multiple spike trains

Similarity-Dissimilarity Competition in Disjunctive Classification Tasks

Inverse MDS: Inferring Dissimilarity Structure from Multiple Item Arrangements

Similar Documents

Inverse Gillespie for inferring stochastic reaction mechanisms from intermittent samples

Inferring assembly-curving trends of bacterial micro-compartment shell hexamers from crystal structure arrangements

Simultaneous classification and multidimensional scaling with external information

Item Selection, Evaluation, and Simple Structure in Personality Data

Inferring human population size and separation history from multiple genome sequences

Inferring species roles in metacommunity structure from species co-occurrence networks

Analysis of differential item functioning in the depression item bank from the Patient Reported Outcome Measurement Information System (PROMIS): An item response theory approach

Inferring neural connectivity from multiple spike trains

Similarity-Dissimilarity Competition in Disjunctive Classification Tasks

Inverse MDS: Inferring Dissimilarity Structure from Multiple Item Arrangements