Tree encodings of programs are well known for their representative power and are used very often in Genetic Programming. In this paper we experiment with a new data structure, named straight line program (slp), to represent computer programs. The main features of this structure are described, new recombination operators for GP related to slp’s are introduced and a study of the Vapnik-Chervonenk...

An emergent line of research on consumers and their evaluations of co-branding shows that a brand ally might strengthen the market position for the co-brand as well as its constituent brands. This article provides a critical review of and a discussion about the limitations of existing research. It is argued that the symbolic dimension of consumption is an unexplored aspect in research on co-bra...

The complexity quantification of human gait time series has received considerable interest for wearable healthcare. Symbolic entropy is one of the most prevalent algorithms used to measure the complexity of a time series, but it fails to account for the multiple time scales and multi-channel statistical dependence inherent in such time series. To overcome this problem, multivariate multiscale s...

BACKGROUND Hospital care is still an integral part of mental healthcare services. But the impact of ward design on treatment outcomes is unclear. AIMS To review the effects of ward design on patient outcomes and patient and staff well-being. METHOD A systematic review of literature was carried out on Medline, Embase and PsycINFO. Papers on psychogeriatric and child and adolescent wards were...

Parametric correspondence is a technique for matching images to a three dimensional symbolic reference map. An analytic camera model is used to predict the location and appearance of landmarks in the image, generating a projection for an assumed viewpoint. Correspondence is achieved by adjusting the parameters of the camera model until the appearances of the landmarks optimally match a symbolic...

This paper presents a regularization method for program complexity control of linear genetic programming tuned for transcendental elementary functions. Our goal is to improve the performance of evolutionary methods when solving symbolic regression tasks involving Pfaffian functions such as polynomials, analytic algebraic and transcendental operations like sigmoid, inverse trigonometric and radi...

It is proved that whenever P is a prime ideal in a commutative Noethe-rian ring such that the P-adic and the P-symbolic topologies are equivalent, then the two topologies are equivalent linearly. Several explicit examples are calculated, in particular for all prime ideals corresponding to non-torsion points on nonsingular elliptic cubic curves. There are many examples of prime ideals P in commu...

In this article transmodernity will be described as the symbolic context within which, in the last decades, new formulations of selfhood and community have emerged that challenge consolidated representations of the world. The aim will be to examine and map out an illustrative range of discourses at the core of the transmodern scenario, highlighting the counterhegemonic potential of its symbolic...

Observability is a very useful concept for determining whether the dynamics of complicated systems can be correctly reconstructed from a single (univariate or multivariate) time series. When the governing equations of dynamical systems are high-dimensional and/or rational, analytical computations of observability coefficients produce large polynomial functions with a number of terms that become...