shivak + combinatorics 18
On a conjecture concerning the sum of independent Rademacher random variables
january 2012 by shivak
"It is shown that at least 50% of the probability mass of a sum of independent Rademacher random variables is within one standard deviation from its mean. This lower bound is sharp, it is much better than for instance the bound that can be obtained from application of the Chebishev inequality..."
probability
combinatorics
papers
january 2012 by shivak
Central Binomial Tail Bounds
january 2012 by shivak
"An alternate form for the binomial tail is presented, which leads to a variety of bounds for the central tail. A few can be weakened into the corresponding Chernoff and Slud bounds, which not only demonstrates the quality of the presented bounds, but also provides alternate proofs for the classical bounds."
probability
combinatorics
papers
january 2012 by shivak
Invitation to Algorithmic Uses of Inclusion-Exclusion
november 2011 by shivak
"There are as many odd-sized as even-sized subsets sandwiched between two different sets."
combinatorics
surveys
november 2011 by shivak
Tight lower bounds for the size of epsilon-nets
december 2010 by shivak
Obsoletes Noga's recent result.
capacity_control
combinatorics
papers
december 2010 by shivak
Two new Probability inequalities and Concentration Results
november 2010 by shivak
"The usual Azuma's inequality assumes absolute bounds on the Martingale differences. This is often too pessimistic, but seems inherently required in the usual moment-generating function method. We prove a new general inequality based on bounds on moments of Martingale differences rather than absolute bounds; while the method used is elementary, it is quite different from the m-g f method."
deviation_inequalities
combinatorics
papers
november 2010 by shivak
Combinatorial theorems in sparse random sets
november 2010 by shivak
"We develop a new technique that allows us to show in a unified way that many well-known combinatorial theorems, including Tur\'an's theorem, Szemer\'edi's theorem and Ramsey's theorem, hold almost surely inside sparse random sets."
combinatorics
sparsity
papers
november 2010 by shivak
Aldous/Diaconis: Longest Increasing Subsequences
may 2010 by shivak
The techniques taught early on in "Probability Theory and Combinatorial Optimization" apparently go quite far.
teaching
combinatorics
may 2010 by shivak
Combinatorial Property Testing: Surveys and Works
april 2010 by shivak
"Most of the works mentioned below focus on combinatorial properties, and specifically on graph properties. The two standard representations of graphs - by adjacency matrix and by incidence lists - yield two different models for testing graph properties. In the first model graphs, most appropriate for dense graphs, distance between N-vertex graphs is measured as the fraction of edges on which the graphs disagree over N^2. In the second model graphs, most appropriate for bounded-degree graphs, distance between N-vertex d-degree graphs is measured as the fraction of edges on which the graphs disagree over dN."
surveys
property_testing
graph_theory
combinatorics
goldreich
oded
april 2010 by shivak
Analytic Combinatorics
march 2010 by shivak
Free online book by an upcoming seminar speaker. "We develop in about 800 pages the basics of asymptotic enumeration and the analysis of random combinatorial structures through an approach that revolves around generating functions and complex analysis."
books
combinatorics
analysis
mathematics
generating_functions
flajolet
phillipe
sedgewick
robert
filetype:pdf
media:document
march 2010 by shivak
Beating Bellman for The Knapsack Problem
march 2010 by shivak
The coefficient extraction method and its predecessor the constant term method.
combinatorics
algorithms
proof_techniques
lokshtanov
daniel
lipton
richard
march 2010 by shivak
Probability in Asymptotic Geometry
june 2009 by shivak
Workshop at Texas A&M.
probability
geometry
combinatorics
june 2009 by shivak
Statistics of Random Permutations and the Cryptanalysis of Periodic Block Cipher
may 2009 by shivak
Ordinary and exponential generating functions are useful for determining the properties of random permutations.
combinatorics
randomness
generating_functions
courtois
nicolas
bard
gregory_v
ault_shaun
may 2009 by shivak
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