Author Archives: Jim

CHI 2014: Modeling Users and Interaction

Model of Visual Search and Selection Time in Linear Menus by Gilles Bailly model to understand human performance for target acquisition in realistic menus novice: scan, skip around; intermediate: directed search with some error; expert: directed search with less error … Continue reading

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CHI 2014: Case Studies – Realities of Fieldwork

An Ethnographic Study of South African Mobile Users by Susan Dray [10 minutes of technical problems; harumph] consulting with undisclosed client study from 2008 to inspire ideas on entering African market; interested in mobile devices; broad scope, with tentative ideas … Continue reading

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CHI 2014: Plenary – Elizabeth Churchill of eBay Research Lab

Reasons to Be Cheerful – Part 4 song: Reasons to Be Cheerful – Part 3 HCI is good at thinking of other people's points of view, imagining ourselves as other people; eg users, maker communities; noticing, reflecting, questioning; everything seems … Continue reading

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CHI 2014: Decisions, Recommendations, and Machine Learning

Customization Bias in Decsion Support Systems by Jacob Solomon user satisfaction improves with customizability; is it a good design choice for decision support systems? data -> system -> recommendation -> decision maker -> decision some systems support customization; customization -> … Continue reading

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CHI 2014: Cross-Device Interaction

Smarties: An Input System for Wall Display Development by Oliver Chapuis wall display input issues: mouse/keyboard – stuck to desk; touch – too close; laser pointer, air gesture, hard to track; prefer mobile tablet input programming is complex and expensive; … Continue reading

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CHI 2014: Risks and Security

Easy Does It: More Usable CAPTCHAs by Angelique Moscicki CAPTCHA: block low grade, automated abuse on low risk tasks; many variations in specific features usability measures: accuracy, solving time, satisfaction automatic variations in features and parameters; 97,000 Mechanical Turk participants … Continue reading

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CHI 2014: Emotion and Mobiles

Mobile Attachment – Causes and Consequences for Emotional Bonding with Mobile Phones by Alexander Meschtscherjakov 7 billion population, 6.8 billion mobile subscriptions psychology: attachment theory, extended self; consumer research and design: brand attachment, product attachment mobile attachment: cognitive and emotional … Continue reading

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CHI 2014: Studying Visualization

Structuring the Space by Nathalie Henry Riche people often refer to information visualizations as maps; many visualizations use spatial metaphors; picked up on contour lines from topographical maps for data mental model: spatial structure + landmarks; do they help or … Continue reading

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CHI 2014: Sensemaking and Information in Use

Odin: Contextual Document Opinions on the Go by Joshua Hailpern Odin: mobile solution to get through hundreds and thousands of docs quickly; UrLs, Google News, upload zip, streams like RSS; finds most relevant, most aligned, most divergent; does an executive … Continue reading

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CHI 2014: Interactive Whiteboards and Public Displays

Communiplay: A Field Study of Public Display Mediaspace by Jorg Muller multiple interactive displays linked across varied public spaces; how will people interact with displays in public media spaces? key metric: conversion rate – percentage of people that start interacting; … Continue reading

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