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stanford hci group / cs376
http://cs376.stanford.edu
Adaptive Interfaces
Nathan Sakunkoo
Today’s Readings
Ephemeral Adaptation ‘09 - Interaction
Mixed-Initiative UI ’99 - Agent Recommender Systems ‘97 – Design
Space
Ephemeral Adaptation Spatial Form
Examples: XP Start Menu Lacks spatial consistency Not so effective except in certain
conditions Graphical Form
Examples: color highlighting Temporal Form: this paper
Ephemeral Adaptation: Main Points
Good performance when prediction algorithm accuracy is high.
Not so poor performance when accuracy is low. Pilot study with Abrupt Onset- Discouraging Gradual onset:
Methods: 2 experiments, 48 users Study 1 Findings: Ephemeral is faster than static menu,
Ephemeral is preferred to control (esp. for high accuracy)
Study 2 Findings: Ephemeral faster than Highlight, but not preferred to Highlight – WHY?
Ephemeral Adaptation: Discussions
Overall Results Methods Applications
Overall
Clarity: The structure of the paper, however, was very clear, the methodology was very transparent, and this made their findings very accessible. – Eyal
Recency: CHI 2009! Wow, its good to see a 2009 paper after reading papers from the 40s and 70s. - Akshay
Average Rating – 3.96
Performance Gain Result
shaving a 100ms off of a menu selection task doesn't feel that compelling – Jesse
wasn't clear that the performance gains were substantive enough – Mike
not sure how much speed savings is considered good enough – Sharon
Preference Result
Subjective try to please researcher prefer fancier interface in the short-
term could be valuable to delve deeper
into the specifics of what made each more satisfying
is 7 vs. 3 that significantly different from 5 vs. 4? - Patty
Methods
Focused, sounded, and thorough
Missing broader issues - Kelly
Controlled experiment Want to see Realistic settings - Eyal
Others?
Applications In which kinds of interfaces/tasks would Ephemeral Adaptation be applicable and in which kind would it not?
Webpage – NY Times MS Office – Menu
Everyone hates MS 2007. Does Microsoft employ similar techniques for their products?
How well do these experiments translate to real user satisfaction in software products? – Reid
Others
Principles of Mixed-Initiative UI
http://research.microsoft.com/en-us/um/people/horvitz/lookout_video_horvitz.wmv
Summary Mixed Initiative UI = Agent + Direct-
manipulation Interfaces that enable users and agents to
collaborative effectively 12 principles learned from LookOut
Developing significant value-added automation Considering uncertainty about a user’s goals …
Methods on managing uncertainties Based on expected utilities
Recommender Systems – ‘97 Design Space
Domain Space Social Implications
Incentives privacy
Design Space
stanford hci group / cs376
http://cs376.stanford.edu
Thank you.