Hitting Set in hypergraphs of low VC-dimension
@inproceedings{Bringmann2016HittingSI, title={Hitting Set in hypergraphs of low VC-dimension}, author={Karl Bringmann and L{\'a}szl{\'o} Kozma and Shay Moran and N. Narayanaswamy}, booktitle={ESA}, year={2016} }
We study the complexity of the Hitting Set problem in set systems (hypergraphs) that avoid certain sub-structures. In particular, we characterize the classical and parameterized complexity of the problem when the Vapnik-Chervonenkis dimension (VC-dimension) of the input is small. VC-dimension is a natural measure of complexity of set systems. Several tractable instances of Hitting Set with a geometric or graph-theoretical flavor are known to have low VC-dimension. In set systems of bounded VC…
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References
SHOWING 1-10 OF 53 REFERENCES
Almost optimal set covers in finite VC-dimension
- Mathematics, Computer ScienceDiscret. Comput. Geom.
- 1995
We give a deterministic polynomial-time method for finding a set cover in a set system (X, ℛ) of dual VC-dimensiond such that the size of our cover is at most a factor ofO(d log(dc)) from the optimal…
Near-Linear Algorithms for Geometric Hitting Sets and Set Covers
- Computer Science, MathematicsSoCG
- 2014
Two simple algorithms, based on the multiplicative-weight method, for computing a small-size hitting set or set cover of Σ are presented, a simpler variant of the Brönnimann-Goodrich algorithm but more efficient to implement and can be viewed as solving a two-player zero-sum game.
Identifying Codes in Hereditary Classes of Graphs and VC-Dimension
- Mathematics, Computer ScienceSIAM J. Discret. Math.
- 2015
It is shown that the problem of finding a smallest identifying code in a given graph from some class is log-APX-hard for any hereditary class of infinite VC-dimension and it is proved that it can be approximate within a factor 6 for interval graphs.
FPT Algorithms for Domination in Biclique-Free Graphs
- MathematicsESA
- 2012
It is shown that various domination problems are fixed-parameter tractable on biclique-free classes of graphs, when parameterizing by both solution size and t.
Exact algorithms and applications for Tree-like Weighted Set Cover
- Mathematics, Computer ScienceJ. Discrete Algorithms
- 2006
Sign rank, VC dimension and spectral gaps
- MathematicsElectron. Colloquium Comput. Complex.
- 2014
The maximum possible sign rank of N×N sign matrices with a given VC dimension d is studied, and it is proved that its sign rank is larger than N 1 2 − 1 2d .
Domination When the Stars Are Out
- MathematicsICALP
- 2011
It is shown that Dominating Set on claw-free graphs is (i) fixed-parameter tractable and (ii) even possesses a polynomial kernel.
Parameterized Complexity of Stabbing Rectangles and Squares in the Plane
- MathematicsWALCOM
- 2009
It is shown that Rectangle Stabbing is fixed-parameter tractable in the still NP-hard case where both these restrictions apply, and the parameterized complexity of the special case where the input consists of rectangles that do not overlap is open.
Compressing and Teaching for Low VC-Dimension
- Computer Science2015 IEEE 56th Annual Symposium on Foundations of Computer Science
- 2015
This work shows that given an arbitrary set of labeled examples from an unknown concept in C, one can retain only a subset of exp(d) of them, in a way that allows to recover the labels of all other examples in the set, using additional exp( d) information bits.