Sciweavers

1554 search results - page 135 / 311
» Parameterized Complexity and Approximation Algorithms
Sort
View
SIGMOD
2005
ACM
220views Database» more  SIGMOD 2005»
16 years 6 months ago
Sampling Algorithms in a Stream Operator
Complex queries over high speed data streams often need to rely on approximations to keep up with their input. The research community has developed a rich literature on approximat...
Theodore Johnson, S. Muthukrishnan, Irina Rozenbau...
COMGEO
2012
ACM
14 years 2 months ago
Algorithms for the edge-width of an embedded graph
Let G be an unweighted graph of complexity n embedded in a surface of genus g, orientable or not. We describe improved algorithms to compute a shortest non-contractible and a shor...
Sergio Cabello, Éric Colin de Verdiè...
SISAP
2008
IEEE
175views Data Mining» more  SISAP 2008»
16 years 22 days ago
Anytime K-Nearest Neighbor Search for Database Applications
Many contemporary database applications require similarity-based retrieval of complex objects where the only usable knowledge of its domain is determined by a metric distance func...
Weijia Xu, Daniel P. Miranker, Rui Mao, Smriti R. ...
TAMC
2009
Springer
15 years 11 months ago
On the Complexity of the Multiple Stack TSP, kSTSP
Given a universal constant k, the multiple Stack Travelling Salesman Problem (kSTSP in short) consists in finding a pickup tour T1 and a delivery tour T2 of n items on two distinc...
Sophie Toulouse, Roberto Wolfler Calvo
INFOCOM
2007
IEEE
16 years 20 days ago
Algorithmic Aspects of Access Networks Design in B3G/4G Cellular Networks
— The forthcoming 4G cellular systems will provide broadband wireless access to a variety of advanced data and voice services. In order to do that, these networks will have a sig...
David Amzallag, Joseph Naor, Danny Raz