Nature-inspired search algorithms have proved to be successful in solving real-world optimization problems. Firefly algorithm is a novel meta-heuristic algorithm which simulates the natural behavior of fireflies. In the present study, optimum design of truss structures with both sizing and geometry design variables is carried out using the firefly algorithm. Additionally, to improve the efficie...

This research paper is aimed at a specific group of emergency medical service location problems, which are solved to save people’s lives and reduce the rate mortality morbidity. Since searching for optimal center deployment big challenge, many operations researchers, programmers, healthcare practitioners have been making great effort find effective solutions since 1960s. Within this paper, we s...

The minimum number of k-subsets out of a v-set such that each t-set is contained in at least one k-set is denoted by C (v; k; t). In this paper, a computer search for nding good such covering designs, leading to new upper bounds on C (v; k; t), is considered. The search is facilitated by predetermining automorphisms of desired covering designs. A stochastic heuristic search (embedded in the gen...

Dual-channel microarray experiments can be regarded as designs with block-size two. Our aim is to find D-optimal, A-optimal and related L-optimal designs for such experiments. Previous work has focussed on exhaustive search algorithms, which in many practical, large-scale experiments is infeasible. We propose using simulated annealing to search for near-optimal designs. We also consider a sub-c...

In today’s world, fashion designers help create billions of dresses, suits, shoes, and other clothing and accessories purchased every year by customers around the world. They study fashion trends, sketch designs of clothing and accessories, select colors and fabrics, and oversee the final production of their designs. With the advent of computers and low storage costs, designers rely on the use ...

This research examines a chronic problem in academic settings – inappropriate copying or misuse of source materials–i.e., plagiarism. We conduct a computer-based writing experiment to examine the effects of psychological and situational characteristics on subjects’ propensity to misappropriate text. Specifically, we examine to what extent such misappropriations may be explained by available tec...