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» Fuzzy-UCS: preliminary results
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CHI
2005
ACM
16 years 7 months ago
From creating virtual gestures to "writing" in sign languages
Sign languages have been proven to be natural languages, as capable of expressing human thoughts and emotions as traditional languages are. The distinct visual and spatial nature ...
Beifang Yi, Frederick C. Harris Jr., Sergiu M. Das...
STOC
2003
ACM
110views Algorithms» more  STOC 2003»
16 years 6 months ago
New degree bounds for polynomial threshold functions
A real multivariate polynomial p(x1, . . . , xn) is said to sign-represent a Boolean function f : {0, 1}n {-1, 1} if the sign of p(x) equals f(x) for all inputs x {0, 1}n. We gi...
Ryan O'Donnell, Rocco A. Servedio
SIGMOD
2006
ACM
112views Database» more  SIGMOD 2006»
16 years 6 months ago
Join minimization in XML-to-SQL translation: an algebraic approach
Consider an XML view defined over a relational database, and a user query specified over this view. This user XML query is typically processed using the following steps: (a) our t...
Murali Mani, Song Wang, Daniel J. Dougherty, Elke ...
SIGMOD
2002
ACM
119views Database» more  SIGMOD 2002»
16 years 6 months ago
Rate-based query optimization for streaming information sources
Relational query optimizers have traditionally relied upon table cardinalities when estimating the cost of the query plans they consider. While this approach has been and continue...
Stratis Viglas, Jeffrey F. Naughton
CHI
2010
ACM
16 years 1 months ago
How does search behavior change as search becomes more difficult?
Search engines make it easy to check facts online, but finding some specific kinds of information sometimes proves to be difficult. We studied the behavioral signals that suggest ...
Anne Aula, Rehan M. Khan, Zhiwei Guan