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» The Complexity of Polynomial-Time Approximation
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CAIP
2007
Springer
125views Image Analysis» more  CAIP 2007»
15 years 10 months ago
Euclidean Shortest Paths in Simple Cube Curves at a Glance
This paper reports about the development of two provably correct approximate algorithms which calculate the Euclidean shortest path (ESP) within a given cube-curve with arbitrary a...
Fajie Li, Reinhard Klette
CIE
2008
Springer
15 years 8 months ago
Herbrand Theorems and Skolemization for Prenex Fuzzy Logics
Approximate Herbrand theorems are established for first-order fuzzy logics based on continuous t-norms, and used to provide proof-theoretic proofs of Skolemization for their Prenex...
Matthias Baaz, George Metcalfe
CORR
2008
Springer
77views Education» more  CORR 2008»
15 years 6 months ago
Principal Graphs and Manifolds
In many physical statistical, biological and other investigations it is desirable to approximate a system of points by objects of lower dimension and/or complexity. For this purpo...
Alexander N. Gorban, Andrei Yu. Zinovyev
171
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IPL
2008
135views more  IPL 2008»
15 years 6 months ago
On the Positive-Negative Partial Set Cover problem
The Positive-Negative Partial Set Cover problem is introduced and its complexity, especially the hardness-of-approximation, is studied. The problem generalizes the Set Cover probl...
Pauli Miettinen
PVLDB
2010
134views more  PVLDB 2010»
15 years 5 months ago
Conditioning and Aggregating Uncertain Data Streams: Going Beyond Expectations
Uncertain data streams are increasingly common in real-world deployments and monitoring applications require the evaluation of complex queries on such streams. In this paper, we c...
Thanh T. L. Tran, Andrew McGregor, Yanlei Diao, Li...