The purpose of this paper is to present a novel approach to the Gaussian mixture background modeling model (GMM) that we call the median mixture model (MMM). The proposed method is based on the same principles as the GMM, but all of the background model parameters are estimated in a much more efficient way resulting in accelerating the algorithm by about 25% without deteriorating the modeling r...

In this paper, we present a novel discriminative training method for multinomial mixture models (MMM) in text categorization based on the principle of large margin. Under some approximation and relaxation conditions, large margin estimation (LME) of MMMs can be formulated as linear programming (LP) problems, which can be efficiently and reliably solved by many general optimization tools even fo...

Initialization problem is a significant issue in FCM-type clustering models, in which alternative optimization is often started with random initial partitions and can be trapped into local optima caused by bad initialization. The deterministic clustering approach is a practical procedure for utilizing a robust feature of very fuzzy partitions and tries to converge the iterative FCM process to a...

Abstract The excessive use of natural gas and other fossil fuels by the industrial sector leads to production great quantities pollutants, including CO 2 , SO NO x . Consequently, these gases increase temperature earth, producing global warming. Different strategies have been developed help overcome this problem, utilization separation membrane technology. Mixed matrix membranes (MMMs) are hybr...

In this study, the effect of SiO2 and TiO2 nanoparticles on the gas separation performance of the polyurethane (PU) membranes has investigated. Polyurethanes were synthesized by bulk two step polym...

Abstract Global warming is causing an unprecedented loss of species and habitats worldwide. This particularly apparent for tropical coral reefs, with increasing number reefs experiencing mass bleaching mortality on annual basis. As such, there a growing need standardized experimental approach to rapidly assess the thermal limits corals predict survival across regions. Using portable system, Cor...

PIM-1 mixed matrix membranes (MMMs) were fabricated with polyhedral oligomeric silsesquioxane (POSS) and graphene oxide (GO) functionalized POSS (GO-POSS), tested for CO2/N2 (single gas) CO2/CH4 (1:1, v:v gas mixture). The CO2 permeability of the best performing fresh MMM (containing 0.05 wt% GO-POSS) was ? 12000 Barrer, which is 69% higher than that neat membrane, about same selectivity (CO2/C...

Global warming is considered as a consequence of extensive use fossil fuels. Post combustion CO2 capture an interesting and alternative solution where mixed matrix membranes (MMMs) can be exciting candidate. This research focuses on the optimization MMM composition consisting Pebax® 3533 polymer porous coordination (PCP) MIL-178(Fe) filler for gas separation application. characterized with SEM,...

Advertising is becoming more and more complex, and there is a strong demand for measurement tools that are capable of keeping up. In tandem with new measurement problems and solutions, new capabilities for evaluating measurement methodologies are needed. Given the complex marketing environment and the multitude of analytical methods available, simulation can be an essential tool for evaluating ...