Sciweavers

13306 search results - page 478 / 2662
» Theoretical Computer Science
Sort
View
CAD
2004
Springer
15 years 7 months ago
Isotopic approximations and interval solids
Given a nonsingular compact two-manifold F without boundary, we present methods for establishing a family of surfaces which can approximate F so that each approximant is ambient i...
Takis Sakkalis, Thomas J. Peters, Justin Bisceglio
CCA
2009
Springer
16 years 2 months ago
Weihrauch Degrees, Omniscience Principles and Weak Computability
Abstract. In this paper we study a reducibility that has been introduced by Klaus Weihrauch or, more precisely, a natural extension of this reducibility for multi-valued functions ...
Vasco Brattka, Guido Gherardi
FOCS
2009
IEEE
16 years 2 months ago
2-Source Extractors under Computational Assumptions and Cryptography with Defective Randomness
Abstract— We show how to efficiently extract truly random bits from two independent sources of linear min-entropy, under a computational assumption. The assumption we rely on is...
Yael Tauman Kalai, Xin Li, Anup Rao
PDC
2004
ACM
16 years 1 months ago
Participatory design in community computing contexts: tales from the field
As technology becomes more embedded in our daily lives, there is a great deal of hope about the use of information technology to achieve positive community outcomes like increasin...
Cecelia Merkel, Lu Xiao, Umer Farooq, Craig H. Gan...
CCA
2009
Springer
15 years 11 months ago
Effective Choice and Boundedness Principles in Computable Analysis
Abstract. In this paper we study a new approach to classify mathematical theorems according to their computational content. Basically, we are asking the question which theorems can...
Vasco Brattka, Guido Gherardi