Sciweavers

1199 search results - page 145 / 240
» Parameterized Proof Complexity
Sort
View
SOUPS
2009
ACM
14 years 3 months ago
Balancing usability and security in a video CAPTCHA
We present a technique for using content-based video labeling as a CAPTCHA task. Our CAPTCHAs are generated from YouTube videos, which contain labels (tags) supplied by the person...
Kurt Alfred Kluever, Richard Zanibbi
IMAMS
2007
245views Mathematics» more  IMAMS 2007»
13 years 10 months ago
Discrete Surface Ricci Flow: Theory and Applications
Conformal geometry is in the core of pure mathematics. Conformal structure is more flexible than Riemaniann metric but more rigid than topology. Conformal geometric methods have p...
Miao Jin, Junho Kim, Xianfeng David Gu
TASLP
2010
153views more  TASLP 2010»
13 years 7 months ago
On Optimal Frequency-Domain Multichannel Linear Filtering for Noise Reduction
Abstract—Several contributions have been made so far to develop optimal multichannel linear filtering approaches and show their ability to reduce the acoustic noise. However, th...
Mehrez Souden, Jacob Benesty, Sofiène Affes
IM
2008
13 years 9 months ago
Directed Random Dot Product Graphs
In this paper we consider three models for random graphs that utilize the inner product as their fundamental object. We analyze the behavior of these models with respect to cluster...
Stephen J. Young, Edward R. Scheinerman
POPL
2008
ACM
14 years 9 months ago
Engineering formal metatheory
Machine-checked proofs of properties of programming languages have become a critical need, both for increased confidence in large and complex designs and as a foundation for techn...
Arthur Charguéraud, Benjamin C. Pierce, Bri...