The concept of fitness is introduced, and a simple derivation of the Fundamental Theorem of Natural Selection (which states that the average fitness of a population increases if its variance is nonzero) is given. After a short discussion of the adaptative walk model, a short review is given of the quasispecies approach to molecular evolution and to the error threshold. The relevance of flat fit...

We study the dynamics of an age-structured population in which the life expectancy of an offspring may be mutated with respect to that of its parent. When advantageous mutation is favored, the average fitness of the population grows linearly with time t, while in the opposite case the average fitness is constant. For no mutational bias, the average fitness grows as t2 3. The average age of the ...

Increased popularity of smartphones has great potential to assist individuals in making healthy changes to their behaviour. Obesity and sedentary lifestyles are fast becoming a healthcare concern in modern societies. This study takes an important step in designing persuasive fitness applications (or apps) that can enhance the physical activity behaviour of individuals. We conceptualize that per...

We first revisit a problem in the literature of genetic algorithms: arranging numbers into groups whose summed weights are as nearly equal as possible. We provide a new genetic algorithm which very aggressively breeds new individuals which should be improved groupings of the numbers. Our results improve upon those in the literature. Then we extend and generalize our algorithm to a related class...

This paper presents a number of experiments in which GP-evolved technical trading rules outperform a buy-and-hold strategy on the S&P500, even taking into account transaction costs. Several methodology changes from previous work are discussed and tested. These include a complexity-penalizing factor, a fitness function that considers consistency of performance, and coevolution of a separate buy ...

Gerontechnology includes the research and development of techniques and technological products, based on the knowledge of aging processes, for the benefit of a preferred living and working environment and adapted medical care for the elderly. Physical and mental fitness are prerequisites to the satisfactory performance of daily tasks. Functionality decreases when perceptive motor abilities or s...

Process discovery techniques automatically extract the real workflow of a process by analyzing the events that are collected and stored in log files. Although in the last years several process discovery algorithms have been presented, none of them guarantees to find complete, precise and simple models for all the given logs. In this paper we address the problem of process discovery through a ge...

We define co-solvability as an ability of a solution to solve a pair of fitness cases (tests). The fitness function based on this concept grants rewards to solutions depending on their performance on all pairs of tests, in a way analogous to implicit fitness sharing. We prove that cosolvability fitness function is synergetic by definition and imposes selection pressure which is qualitatively di...

The merits of incorporating feature construction to assist selective induction in learning hard concepts are well documented. This paper introduces the notion of function attributes and reports a method of incorporating functional regularities in classifiers. Training sets are preprocessed with this method before submission to a selective induction classification learning system. The method, re...