In recent years, access to multimedia data has become much easier due to rapid growth of the internet. While this is usually considered an improvement of everyday life, it also makes unauthorized copying and distributing of multimedia data much easier, therefore presenting a field of watermarking. Many literatures have reported about Discrete Wavelet Transform watermarking techniques for data s...

this paper presents a new mathematical model for a hybrid flow shop scheduling problem with multiprocessor tasks in which sequence dependent set up times and preemption are considered. the objective is to minimize the weighted sum of makespan and maximum tardiness. three meta-heuristic methods based on genetic algorithm (ga), imperialist competitive algorithm (ica) and a hybrid approach of ga a...

Abstract Objectives To assess the correlations between flaccid penile colour-Doppler ultrasound (fPCDU) parameters, carotid (CCDU) parameters and history of major adverse cardiovascular events (MACE) in men with erectile dysfunction (ED). Methods A consecutive series 269 (55.3±11.6 years) complaining ED were evaluated fPCDU (assessing cavernosal artery peak systolic velocity [CAPSV] acceleratio...

The convex divergence is used as a surrogate function for obtaining a class of ICA algorithms (Independent Component Analysis) called the f-ICA. The convex divergence is a super class of α-divergence, which is a further upper family of Kullback-Leibler divergence or mutual information. Therefore, the f-ICA contains the α-ICA and the minimum mutual information ICA. In addition to theoretical int...

To extract consistently and transiently task-related component maps, a novel ICA paradigm, the ICA with reference (ICA-R), is proposed. ICA-R produces only component maps corresponding to the input stimuli which are used as reference signals in the learning paradigm, and all activations corresponding to a particular stimulus are located in a single component map. Computational and memory requir...

b a ckground : in fact the biofilms are composed of bacterial cells living inmulticellular structures such as tissues and organs embedded within a self-produced matrix of extracellular polymeric substance (eps). ability to attach and biofilm formation are the most important virulence factors staphylococcus aureus isolates. the aims of this study were to detect intracellular adhesion (ica) locus...

Production scheduling (planning) of an open-pit mine is the procedure during which the rock blocks are assigned to different production periods in a way that the highest net present value of the project achieved subject to operational constraints. The paper introduces a new and computationally less expensive meta-heuristic technique known as imperialist competitive algorithm (ICA) for long-term...