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SODA
2016
ACM
55views Algorithms» more  SODA 2016»
10 years 3 months ago
Constant Factor Approximation for Subset Feedback Set Problems via a new LP relaxation
We consider subset feedback edge and vertex set problems in undirected graphs. The input to these problems is an undirected graph G = (V, E) and a set S = {s1, s2, . . . , sk} ⊂...
Chandra Chekuri, Vivek Madan
SODA
2016
ACM
61views Algorithms» more  SODA 2016»
10 years 3 months ago
Locality-sensitive Hashing without False Negatives
We consider a new construction of locality-sensitive hash functions for Hamming space that is covering in the sense that is it guaranteed to produce a collision for every pair of ...
Rasmus Pagh
SODA
2016
ACM
66views Algorithms» more  SODA 2016»
10 years 3 months ago
New directions in nearest neighbor searching with applications to lattice sieving
To solve the approximate nearest neighbor search problem (NNS) on the sphere, we propose a method using locality-sensitive filters (LSF), with the property that nearby vectors ha...
Anja Becker, Léo Ducas, Nicolas Gama, Thijs...
SODA
2016
ACM
48views Algorithms» more  SODA 2016»
10 years 3 months ago
Locally Adaptive Optimization: Adaptive Seeding for Monotone Submodular Functions
The Adaptive Seeding problem is an algorithmic challenge motivated by influence maximization in social networks: One seeks to select among certain accessible nodes in a network, ...
Ashwinkumar Badanidiyuru, Christos H. Papadimitrio...
SODA
2016
ACM
57views Algorithms» more  SODA 2016»
10 years 3 months ago
On the maximum quartet distance between phylogenetic trees
A conjecture of Bandelt and Dress states that the maximum quartet distance between any two phylogenetic trees on n leaves is at most (2 3 + o(1)) n 4 . Using the machinery of fla...
Noga Alon, Humberto Naves, Benny Sudakov