Faceted Search on Coordinated Tablets and Tabletop: a Comparison

Sven Charleer @svencharleer Human-Computer Interaction Group

Joris Klerkx Tinne De Laet Erik Duval † Katrien Verbert

ABLEproject

http://www.europeana.eu/portal/

Faceted Search

http://www.europeana.eu/portal/

large data sets

complex queries

context

usability

Faceted Search

Thudt, A., Hinrichs, U., & Carpendale, S. (2012, May). The bohemian bookshelf: supporting serendipitous book discoveries through information visualization. In Proc. SIGCHI Conference on Human Factors in Computing Systems (pp. 1461-1470). ACM.

Coordinated Multiple Views

Max Planck Research Networkshttp://max-planck-research-networks.net/

cheap

ubiquitous

CMV

visual field discontiguity

impact depends

James R. Wallace, Daniel Vogel, and Edward Lank. 2014. Effect of Bezel Presence and Width on Visual Search. In Proc. of The Int. Symposium on Pervasive Displays (PerDis ’14). ACM, New York, NY, USA, Article 118, 6 pages.

RQ2: Is there a difference in user’s perceived experience of the coordinated tablets versus large display faceted search CMV systems?

RQ1: Is there a measurable difference in user search performance on coordinated tablets versus large display faceted search CMV systems?

Newspaper Exploration Environment

aggregated dataaggregated dataaggregated data

socket.io

mongodb

filte

r sta

ck

cach

eCountryCountry

YearNewspaper

Country Newspaper

SERV

ERC

LIEN

T D

EVIC

ES

Node.js

Setup: Technology

22 subjects, age 20-62

TabletopsTabletsTouch

1 2 3 4 5Familiarity (Not at all - Extremely) +Tabletop Tablets Mean

++

+

user perceptionusability

interview

Setup: Evaluation

Setup: Evaluation

within-subjectcounterbalanced

5 tasks

8681 digitized newspapers

RQ2: Is there a difference in user’s perceived experience of the coordinated tablets versus large display faceted search CMV systems?

RQ1: Is there a measurable difference in user search performance on coordinated tablets versus large display faceted search CMV systems?

Task

Completion Time (seconds)

Task 1 (TT)Task 1 (TB)Task 2 (TT)Task 2 (TB)Task 3 (TT)Task 3 (TB)Task 4 (TT)Task 4 (TB)Task 5 (TT)Task 5 (TB)

0 20 40 60 80 100 120

++

++++

++

++

+Tabletop Tablets Mean

no indication of a difference

RQ1: Measurable difference in user search performance?

TabletsTabletop

TabletsTabletop

Seconds per Search Step

Search Path Length

+Tabletop Tablets Mean

0 5 10 15 20 25

++

0 5 10 15

++

do not search less efficiently on the tablets

RQ1: Measurable difference in user search performance?

RQ2: Is there a difference in user’s perceived experience of the coordinated tablets versus large display faceted search CMV systems?

RQ1: Is there a measurable difference in user search performance on coordinated tablets versus large display faceted search CMV systems?

M=82.36,SD=11.83

RQ2: A difference in user’s perceived experience

M=80.25,SD=12.87

SUS

+ Mean

AwarenessSpeed

++

Perceived comparison1 2 3 4 5

RQ2: A difference in user’s perceived experience

perceived search performance better on the tabletop

Awareness of changes across widgets

Search performance

RQ2: A difference in user’s perceived experience

Worse sense of overview

Bezels

Preference in general

“they facilitate working on individual facets better”

“I could pick one up to dig deeper in one facet”

“I am more tempted to focus on one facet”

RQ2: A difference in user’s perceived experience

“I can set this up at home”

“I can take this with me”

“I can move more freely around the workspace”

RQ2: A difference in user’s perceived experience

“I could expand and reduce depending on my current needs”

RQ1: Measurable difference in user search performance?

RQ2: A difference in user’s perceived experience

No

Overview -> perceived satisfaction

ROI regarding performance?

Focussed tasks

Kevin F Bury, Michael J Darnell, and Susan E Davies. 1985. Window management: A review of issues and some results from user testing. General Products DivisionKasper Hornbæk and Morten Hertzum. 2011. The notion of overview in information visualization. International Journal of Human-Computer Studies 69, 7 (2011), 509–525.

Yes Overview -> Task performance?

Solve perception problems

Faceted Search on Coordinated Tablets and Tabletop: a Comparison

Sven Charleer

@svencharleer

svencharleer.com

ABLEproject