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MOC
2010
13 years 4 months ago
The period of the Bell numbers modulo a prime
We discuss the numbers in the title, and in particular whether the minimum period of the Bell numbers modulo a prime p can be a proper divisor of Np = (pp - 1)/(p - 1). It is known...
Peter L. Montgomery, Sangil Nahm, Samuel S. Wagsta...
ICIP
2008
IEEE
14 years 11 months ago
Lossy to lossless image compression based on reversible integer DCT
A progressive image compression scheme is investigated using reversible integer discrete cosine transform (RDCT) which is derived from the matrix factorization theory. Previous te...
Lei Wang, Jiaji Wu, Licheng Jiao, Li Zhang, Guangm...
EOR
2010
113views more  EOR 2010»
13 years 7 months ago
Combining integer programming and the randomization method to schedule employees
: We describe a method to find low cost shift schedules with a time-varying service level that is always above a specified minimum. Most previous approaches used a two-step procedu...
Armann Ingolfsson, Fernanda Campello, Xudong Wu, E...
ICDM
2007
IEEE
148views Data Mining» more  ICDM 2007»
14 years 4 months ago
Binary Matrix Factorization with Applications
An interesting problem in Nonnegative Matrix Factorization (NMF) is to factorize the matrix X which is of some specific class, for example, binary matrix. In this paper, we exten...
Zhongyuan Zhang, Tao Li, Chris H. Q. Ding, Xiangsu...
ISSAC
2004
Springer
135views Mathematics» more  ISSAC 2004»
14 years 3 months ago
Absolute polynomial factorization in two variables and the knapsack problem
A recent algorithmic procedure for computing the absolute factorization of a polynomial P(X, Y ), after a linear change of coordinates, is via a factorization modulo X3 . This was...
Guillaume Chèze