This paper presents a method for automated mammographic risk classification based on breast density estimation in mammograms. The overall profile of breast tissue density is represented using a topographic map, which is a hierarchical representation, obtained from the upper level sets of an image. A shape tree is constructed to describe the topological and geometrical structure of the shapes (i...

Business intelligence technologies have received much attention recently from both academics and practitioners. However, the impact of business intelligence (BI) on corporate performance management (CPM) has not yet been investigated. To address this gap, we conducted a large-scale survey collecting data from 337 senior managers. Partial least square method was employed to analyse the survey da...

This paper discusses two combinatorial problems in stability theory. First we prove a partition result for subsets of stable models: for any A and B, we can partition A into |B | ) pieces, 〈Ai | i < |B | 〉, such that for each Ai there is a Bi ⊆ B where |Bi| < κ(T ) and Ai |̂ Bi B. Second, if A and B are as above and |A | > |B |, then we try to find A′ ⊂ A and B′ ⊂ B such that |A′| is as large as...

Bi-Hamiltonian formulation is significant for investigating integrable properties of nonlinear systems of differential equations [1] [2] [3]. Many mathematical and physical systems have been found to possess such kind of bi-Hamiltonian formulation. There are two important problems related to bi-Hamiltonian theory. The one is which kind of systems can possess bi-Hamiltonian formulation and the o...

We refer to human-robot relationships as Lovotics. In this paper a design process for Lovotics is presented. In order to invoke these relationships, technological solutions can only take us so far. Design played an important role in order to engage users to explore the possibilities of bi-directional, human-robot love. We conducted a user-centric study in order to understand these factors and i...

the aim of this article is to extend the study of the lorentz transformation of order (m,n) from m=1 and n>=1 to all m,n>=1, obtaining algebraic structures called a bi-gyrogroup and a bi-gyrovector space. a bi-gyrogroup is a gyrogroup each gyration of which is a pair of a left gyration and a right gyration. a bi-gyrovector space is constructed from a bi-gyrocommutative bi-gyrogroup that admits ...

We analyze the relationship between the speed of light ce and the speed of gravity cg in the bi-metric theory of gravity. We reveal that in this theory the speed of light is a function of the speed of gravity which is a primary fundamental constant. Thus, experimental measurement of ce in the framework of the bi-metric theory is merely a convoluted way to measure cg. PACS numbers: 04.20.Cv, 04....

A bi-isotropic magneto-electric metamaterials is modeled by two independent reservoirs. The reservoirs contain a continuum of three dimensional harmonic oscillators, which describe polarizability and magnetizability of the medium. The paper aimed to investigate the effect of electromagnetic field on bi-isotropic. Starting with a total Lagrangian and using Euler-Lagrange equation, researcher cou...