1,001,001 Faces user testing plan for face navigation interface Tzu-Pei Grace Chen Sidney Fels Human...
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Transcript of 1,001,001 Faces user testing plan for face navigation interface Tzu-Pei Grace Chen Sidney Fels Human...
1,001,001 Faces user testing plan for
face navigation interface
Tzu-Pei Grace ChenSidney Fels
Human Communication Technologies Lab
What is this project about?
• Buddhist Deities of Sanjusangen-do Temple raises two interesting questions:– Finite set of faces for
majority to identify with– Effective interface for
face navigation
Face Searching Background
• Component vs. Configural navigation• Component and configural approach
complement each other.
Face Wheel Design
• Our interface is configural navigation
• Navigation from average face to distinct
• No verbal description of faces.
• Key feature
User Testing Design
• 2 experiments• Within subject test• Factorial design• Task: face matching• Plan to use subjects
with no face recognition impairment.
• Play time after the talk.
Experiment 1
• hypothesis– Is it easier to navigate on texture & shape
correlated axes?
interface
axes
wheel
fixed slider
T-S correlated T-S uncorrelated
Experiment 2
• Hypotheses– 1. Does the wheel interface work better than
the slider interfaces?– 2. Does the increase of the face space
resolution increase the level of difficulty?
interface
dimension
wheel
fixed slider
dynamic slider
36
fine coarse Resolution
Questionnaire
• Experiment 1– What’s your ethnic background?
• Experiment 2– Which interface do you prefer and why?– Is your preferred interface the one you are
most familiar with?– Are there situations you would give different
preferences to each interface?
Analysis of Data
• Factorial design calls for ANOVA• For dependent variable, “face closeness”, each face
matching result is given score for ANOVA process• Dependent variable, time, will be analysed
separately.
Confounding variables
• Everyone has different experience with faces and hence different face space in their head.
• Other race effect• Subjects improve
from familiarity with faces.