User profiles for P. Hammer

Peter E. Hammer, PhD

Instructor in Surgery, Harvard Medical School; Staff Scientist, Boston Children's Hospital
Verified email at childrens.harvard.edu
Cited by 2090

Logical analysis of data—An overview: From combinatorial optimization to medical applications

PL Hammer, TO Bonates - Annals of Operations Research, 2006 - Springer
… satisfies the defining conditions of p of the p positive patterns in M, as well as those of q
of the q negative patterns in M, then the observation is predicted to have the sign of ( p

Boolean Functions for Cryptography and Error-Correcting Codes.

C Carlet, Y Crama, PL Hammer - 2010 - books.google.com
… If all the coefficients of P are integers, then we have P2 (x)≥ P (x) for every x; this implies
that the 2n equalities, expressing that the corresponding function is Boolean, can be reduced to …

[BOOK][B] Boolean methods in operations research and related areas

PL Hammer, S Rudeanu - 2012 - books.google.com
… The work by HAMMER (IVĂNESCU) and RUDEANU on Boolean methods represents an
important … In fact, assuming that we have already proved a certain property, Hammer/Rudeanu, …

[HTML][HTML] Pseudo-boolean optimization

E Boros, PL Hammer - Discrete applied mathematics, 2002 - Elsevier
… In view of the above result, we can regard ROUNDDOWN and ROUNDUP as efficient
derandomizations, since eg for a fractional vector p ∈ U n a simple probabilistic argument …

Aggregations of inequalities

V Chvátal, PL Hammer - Studies in Integer Programming, Annals …, 1977 - books.google.com
… ,..., v.} into disjoint subsets P and Q such that every ve P is adjacent to all the vertices v, with
i< j… into sets P and Q. Furthermore, each we S will be adjacent to all the vertices from P and to …

[BOOK][B] Boolean functions: Theory, algorithms, and applications

Y Crama, PL Hammer - 2011 - books.google.com
Hammer, for getting us started on this ambitious project, many years ago. Peter spent much
… of symbols in the expression (p. The statement trivially holds if (p contains only one literal. If (…

Vectorial Boolean Functions for Cryptography.

C Carlet, Y Crama, PL Hammer - 2010 - books.google.com
This chapter deals with multi-output Boolean functions viewed from a cryptographic viewpoint,
that is, functions from the vector space Fn2, of all binary vectors of length n, to the vector …

Induction of atrial tachycardia and fibrillation in the mouse heart

…, CT Maguire, P Kovoor, PE Hammer… - Cardiovascular …, 2001 - academic.oup.com
Background: Atrial tachycardia and fibrillation in humans may be partly consequent to vagal
stimulation. Induction of fibrillation in the small heart is considered to be impossible due to …

An implementation of logical analysis of data

E Boros, PL Hammer, T Ibaraki, A Kogan… - … on knowledge and …, 2000 - ieeexplore.ieee.org
p P f0Y1gn if p 1. The characteristic term of a point p P f0Y1gn is the unique term of degree n
covering p… A term is an implicant of a Boolean function f if pfp for all p P f0Y1gn. An implicant …

Roof duality, complementation and persistency in quadratic 0–1 optimization

PL Hammer, P Hansen, B Simeone - Mathematical programming, 1984 - Springer
… The quadratic normal posiform O is a quadratic residual of f if and only if there is a linear
function p such that -f = O -p. The statement then immediately follows by applying theorem 1.6 to …