optimizing the database queries is one of hard research problems. exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. the use of evolutionary methods, beca...

The searching efficiency of predators depends on the balance between adaptations predator and counter-adaptations prey. In this evolutionary race, prey should normally have upper hand, as it can perform tradeoffs in resource use ability to avoid predators. terrestrial predator–herbivore systems, however, huge difference food quality seems give an advantage. productive ecosystems, thus chronical...

This paper presents a lexical post-processing optimization for handwritten word recognition. The aim of this work is to explore the combination of different lexical postprocessing approaches in order to optimize the recognition rate, the recognition time and memory requirements. The present method focuses on the following tasks: a lexicon organization with word filtering, based on holistic word...

0006-3207/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.biocon.2010.04.004 * Corresponding author at: Centre for Mathemat Mathematical and Statistical Sciences, University of A T6G 2G1. Tel.: +1 780 492 6347; fax: +1 780 492 837 E-mail addresses: [email protected] (P.K. Molná Derocher), [email protected] (G.W. Thiemann), ml Lewis). Polar bear (Ursus maritimus) populations are predicte...

When executives examine how smart their innovation processes are, the soul-searching involves questions of effectiveness, efficiency, and risk. How does the company’s record of success in innovation stand up against competitors’? Does the company achieve an adequate return on its investments in technology? Is the company’s innovation process sufficiently under control to improve the predictabil...

Contact author Abstract Searching information from the WWW efficiently and effectively has become a very important issue. In this paper, we apply the information filtering concept to finding good matches of web pages for what the users need. Furthermore, we propose four new methods for indexing the users’ information needs and show their efficiency in comparison with two well-known approaches.

Even ambitious algorithms for the generation of referring expressions that identify sets of objects are restricted in terms of efficiency or in their expressive repertoire. In this paper, we report on a system that applies a best-first searching procedure, enhancing both its effectiveness and the variety of expressions it can generate.

Diaprepes abbreviatus L. is a highly polyphagous root weevil that causes damage to several fruit crops, ornamental plants, and other naturally occurring plants in Florida. Haeckeliania sperata Pinto is a gregarious endoparasitoid that attacks D. abbreviatus eggs. We hypothesized that the reproductive success of H. sperata is affected by the host plant of D. abbreviatus. Six host plants with var...

The purpose of this paper is to introduce and demonstrate an exam scheduling software system that performs efficient, accurate and robust solution searching to solve large and complex exam scheduling problems. The paper describes the main features of the system and in particular the test paper conflictive analysis method that can provide a highly efficient data model to significantly improve se...