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» A Survey of Human Computation Systems
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CHI
1993
ACM
14 years 7 days ago
Exploring the applications of user-expertise assessment for intelligent interfaces
An adaptive user interface relies, to a large extent, upon an adequate user model (e.g., a representationof user-expertise). However, building a user model may be a tedious and ti...
Michel Desmarais, Jiming Liu
CHI
1995
ACM
13 years 11 months ago
The ScienceWare Modeler: a learner-centered tool for students building models
The Modeler is designed using a learner-centered approach [5], with scaffolding to address the specific needs of learners. Scaffolding [3] is an educational term that refers to pro...
Shari L. Jackson
NIPS
2008
13 years 9 months ago
Breaking Audio CAPTCHAs
CAPTCHAs are computer-generated tests that humans can pass but current computer systems cannot. CAPTCHAs provide a method for automatically distinguishing a human from a computer ...
Jennifer Tam, Jirí Simsa, Sean Hyde, Luis v...
ACMDIS
2010
ACM
13 years 8 months ago
WallBots: interactive wall-crawling robots in the hands of public artists and political activists
Street art and political activism have a rich history of shaping urban landscapes. Our work explores the processes by which public artists and political activists contribute to pu...
Stacey Kuznetsov, Eric Paulos, Mark D. Gross
CCS
2010
ACM
13 years 8 months ago
Attacks and design of image recognition CAPTCHAs
We systematically study the design of image recognition CAPTCHAs (IRCs) in this paper. We first review and examine all IRCs schemes known to us and evaluate each scheme against th...
Bin B. Zhu, Jeff Yan, Qiujie Li, Chao Yang, Jia Li...