for a Pervasive Eye Tracking World Daniel J. Liebling, Seattle, USA - - PowerPoint PPT Presentation

for a pervasive eye tracking world
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for a Pervasive Eye Tracking World Daniel J. Liebling, Seattle, USA - - PowerPoint PPT Presentation

PETMEI 2014 Privacy Considerations for a Pervasive Eye Tracking World Daniel J. Liebling, Seattle, USA Sren Preibusch, Cambridge, UK Technology and Privacy Technology growth precedes policy 1973 1991 2000s today Lets talk about


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Privacy Considerations for a Pervasive Eye Tracking World

Daniel J. Liebling, Seattle, USA Sören Preibusch, Cambridge, UK

PETMEI 2014

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Technology and Privacy

Technology growth precedes policy

1973 1991 2000s today Let’s talk about privacy!

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Gaze tracking

1967 2000s 2014 Let’s talk about privacy!

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Gaze and Privacy Overview

What data is collected? Who collects it? Collection at scale.

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Gaze data is unique!

Voice recognizer defeat by changing your voice. Cameras and face recognition wear sunglasses, hats, makeup. Keystroke metrics type differently. Eye tracking ???

Adam Harvey, NYU ITU “CV Dazzle”

Volitional control is difficult – and mentally, physically fatiguing.

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Beyond (x, y)

Age Emotional valence Body mass index Menstrual cycle Reading native language? Task Mind wandering

Graham et al., 2011 Rayner, 1998 Yarbus, 1967 Borji & Itti, 2014 Hess & Polt, 1960. Uzzaman & Joordens, 2011. Smallwood et al., 2011 Laeng & Falkenberg, 2007. Munoz et al., 1998.

Expertise

  • Y. Liu et al., 2009.

Δr

Partala et al., 2000.

Individual identity

(various)

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Who collects

Intentional collection Researchers -> benefits the research[ers] Physicians -> benefits end user Companies -> benefits company Incidental collection Marketers, banks, vehicle manufacturers, etc. Coming soon: computing device mfrs, Web sites, auto manufacturers

Is opt-out even possible?

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Scale

From one recording to many recordings

  • f many people

Analogue: Eye tracker public installations Eye-Follower, Paris, 1986 – National Gallery, London, 2001 ~ 10,000 recordings Research corpora EyeCloud (Vrzakova et al.) EMVIC

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Privacy

Westin (1967): An individual’s right “to control, edit, manage, and delete information about them[selves] and decide when, how, and to what extent information is communicated to others.” We care about “information self-determination.”

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What to do?

Duty to inform Create affordances for self-introspection Provide interfaces for dissemination control

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What to do?

Levels of abstraction, fuzzing What granularity and noise tolerances are enough? Rich literature in location community. Policy and regulation EU Data Protection Directive, etc.

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Gaze-enhanced privacy

Authentication is a good thing Use focus and attention to gate sensitive data

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Summary

With great power comes great responsibility. Stewards of gaze data should think deeply about collection and use of eye gaze data at scale.

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Privacy Considerations for a Pervasive Eye Tracking World

Daniel J. Liebling Sören Preibusch

PETMEI 2014