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» The problem of examination questions in algorithmics
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COMPGEOM
2009
ACM
15 years 11 months ago
Zigzag persistent homology and real-valued functions
We study the problem of computing zigzag persistence of a sequence of homology groups and study a particular sequence derived from the levelsets of a real-valued function on a top...
Gunnar Carlsson, Vin de Silva, Dmitriy Morozov
STOC
2001
ACM
134views Algorithms» more  STOC 2001»
16 years 4 months ago
Data-streams and histograms
Histograms are typically used to approximate data distributions. Histograms and related synopsis structures have been successful in a wide variety of popular database applications...
Sudipto Guha, Nick Koudas, Kyuseok Shim
CHI
2004
ACM
16 years 4 months ago
Eye gaze interaction with expanding targets
Recent evidence on the performance benefits of expanding targets during manual pointing raises a provocative question: Can a similar effect be expected for eye gaze interaction? W...
Darius Miniotas, Oleg Spakov, I. Scott MacKenzie
AAAI
2008
15 years 6 months ago
Online Learning in Monkeys
We examine online learning in the context of the Wisconsin Card Sorting Task (WCST), a task for which the concept acquisition strategies for human and other primates are well docu...
Xiaojin Zhu, Michael Coen, Shelley Prudom, Ricki C...
GROUP
2005
ACM
15 years 10 months ago
Searching for expertise in social networks: a simulation of potential strategies
People search for people with suitable expertise all of the time in their social networks – to answer questions or provide help. Recently, efforts have been made to augment this...
Jun Zhang, Mark S. Ackerman