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WAOA
2007
Springer
170views Algorithms» more  WAOA 2007»
14 years 5 months ago
A 5/3-Approximation for Finding Spanning Trees with Many Leaves in Cubic Graphs
For a connected graph G, let L(G) denote the maximum number of leaves in a spanning tree in G. The problem of computing L(G) is known to be NP-hard even for cubic graphs. We improv...
José R. Correa, Cristina G. Fernandes, Mart...
CORR
2008
Springer
115views Education» more  CORR 2008»
13 years 11 months ago
Spanning directed trees with many leaves
The Directed Maximum Leaf Out-Branching problem is to find an out-branching (i.e. a rooted oriented spanning tree) in a given digraph with the maximum number of leaves. In this pap...
Noga Alon, Fedor V. Fomin, Gregory Gutin, Michael ...
COLT
2005
Springer
14 years 4 months ago
Leaving the Span
We discuss a simple sparse linear problem that is hard to learn with any algorithm that uses a linear combination of the training instances as its weight vector. The hardness holds...
Manfred K. Warmuth, S. V. N. Vishwanathan
ACMACE
2007
ACM
14 years 3 months ago
WikiTUI: leaving digital traces in physical books
This article describes the design of WikiTUI, a tangible user interface system that allows readers to manipulate multimedia information tied to page-level locations in common book...
Chih-Sung (Andy) Wu, Susan J. Robinson, Alexandra ...
IWPEC
2009
Springer
14 years 5 months ago
An Exact Algorithm for the Maximum Leaf Spanning Tree Problem
Given an undirected graph with n nodes, the Maximum Leaf Spanning Tree problem is to find a spanning tree with as many leaves as possible. When parameterized in the number of leav...
Henning Fernau, Joachim Kneis, Dieter Kratsch, Ale...