This presentation introduces some of the main themes in modern evolutionary algorithm research while emphasising their application to problems that exhibit real-world complexity.
Metaheuristic Algorithms: A Critical AnalysisXin-She Yang
The document discusses metaheuristic algorithms and their application to optimization problems. It provides an overview of several nature-inspired algorithms including particle swarm optimization, firefly algorithm, harmony search, and cuckoo search. It describes how these algorithms were inspired by natural phenomena like swarming behavior, flashing fireflies, and bird breeding. The document also discusses applications of these algorithms to engineering design problems like pressure vessel design and gear box design optimization.
Review of Metaheuristics and Generalized Evolutionary Walk AlgorithmXin-She Yang
This document provides an overview of nature-inspired metaheuristic algorithms for optimization. It discusses the main components of metaheuristic algorithms, including intensification and diversification. It then reviews the history and development of several important metaheuristic algorithms from the 1960s to the 1990s, including genetic algorithms, evolutionary strategies, simulated annealing, ant colony optimization, particle swarm optimization, and differential evolution. The document aims to analyze why these algorithms work and provide a unified view of metaheuristics.
Cuckoo Search Algorithm: An IntroductionXin-She Yang
This presentation explains the fundamental ideas of the standard Cuckoo Search (CS) algorithm, which also contains the links to the free Matlab codes at Mathswork file exchanges and the animations of numerical simulations (video at Youtube). An example of multi-objective cuckoo search (MOCS) is also given with link to the Matlab code.
Nature-Inspired Optimization Algorithms Xin-She Yang
This document discusses nature-inspired optimization algorithms. It begins with an overview of the essence of optimization algorithms and their goal of moving to better solutions. It then discusses some issues with traditional algorithms and how nature-inspired algorithms aim to address these. Several nature-inspired algorithms are described in detail, including particle swarm optimization, firefly algorithm, cuckoo search, and bat algorithm. These are inspired by behaviors in swarms, fireflies, cuckoos, and bats respectively. Examples of applications to engineering design problems are also provided.
The document summarizes two nature-inspired metaheuristic algorithms: the Cuckoo Search algorithm and the Firefly algorithm.
The Cuckoo Search algorithm is based on the brood parasitism of some cuckoo species. It lays its eggs in the nests of other host birds. The algorithm uses Lévy flights for generating new solutions and considers the best solutions for the next generation.
The Firefly algorithm is based on the flashing patterns of fireflies to attract mates. It considers attractiveness that decreases with distance and movement of fireflies towards more attractive ones. The pseudo codes of both algorithms are provided along with some example applications.
The shuffled frog leaping algorithm is an evolutionary algorithm inspired by the behavior of frogs searching for food. It works by first randomly generating a population of solutions and dividing them into groups. Each group conducts a local search, and the best solutions are shared among groups in shuffling processes. This continues until a convergence threshold is reached. The algorithm has applications in optimization problems like power grid design, construction scheduling, and water network planning by evaluating many potential solutions efficiently.
Metaheuristic Algorithms: A Critical AnalysisXin-She Yang
The document discusses metaheuristic algorithms and their application to optimization problems. It provides an overview of several nature-inspired algorithms including particle swarm optimization, firefly algorithm, harmony search, and cuckoo search. It describes how these algorithms were inspired by natural phenomena like swarming behavior, flashing fireflies, and bird breeding. The document also discusses applications of these algorithms to engineering design problems like pressure vessel design and gear box design optimization.
Review of Metaheuristics and Generalized Evolutionary Walk AlgorithmXin-She Yang
This document provides an overview of nature-inspired metaheuristic algorithms for optimization. It discusses the main components of metaheuristic algorithms, including intensification and diversification. It then reviews the history and development of several important metaheuristic algorithms from the 1960s to the 1990s, including genetic algorithms, evolutionary strategies, simulated annealing, ant colony optimization, particle swarm optimization, and differential evolution. The document aims to analyze why these algorithms work and provide a unified view of metaheuristics.
Cuckoo Search Algorithm: An IntroductionXin-She Yang
This presentation explains the fundamental ideas of the standard Cuckoo Search (CS) algorithm, which also contains the links to the free Matlab codes at Mathswork file exchanges and the animations of numerical simulations (video at Youtube). An example of multi-objective cuckoo search (MOCS) is also given with link to the Matlab code.
Nature-Inspired Optimization Algorithms Xin-She Yang
This document discusses nature-inspired optimization algorithms. It begins with an overview of the essence of optimization algorithms and their goal of moving to better solutions. It then discusses some issues with traditional algorithms and how nature-inspired algorithms aim to address these. Several nature-inspired algorithms are described in detail, including particle swarm optimization, firefly algorithm, cuckoo search, and bat algorithm. These are inspired by behaviors in swarms, fireflies, cuckoos, and bats respectively. Examples of applications to engineering design problems are also provided.
The document summarizes two nature-inspired metaheuristic algorithms: the Cuckoo Search algorithm and the Firefly algorithm.
The Cuckoo Search algorithm is based on the brood parasitism of some cuckoo species. It lays its eggs in the nests of other host birds. The algorithm uses Lévy flights for generating new solutions and considers the best solutions for the next generation.
The Firefly algorithm is based on the flashing patterns of fireflies to attract mates. It considers attractiveness that decreases with distance and movement of fireflies towards more attractive ones. The pseudo codes of both algorithms are provided along with some example applications.
The shuffled frog leaping algorithm is an evolutionary algorithm inspired by the behavior of frogs searching for food. It works by first randomly generating a population of solutions and dividing them into groups. Each group conducts a local search, and the best solutions are shared among groups in shuffling processes. This continues until a convergence threshold is reached. The algorithm has applications in optimization problems like power grid design, construction scheduling, and water network planning by evaluating many potential solutions efficiently.
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This document discusses applications of Bayesian nonparametric methods to various domains including toxicology, ecology, marketing, human fertility, and more. It provides examples of using rounded Gaussian mixtures and Dirichlet process mixtures to model count data from developmental toxicity studies and animal abundance data. Applications to modeling multivariate mobile phone usage data and basal body temperature curves are also described. The document emphasizes that Bayesian nonparametric approaches allow inclusion of prior information and flexible modeling of complex data structures.
Bat Algorithm: Literature Review and ApplicationsXin-She Yang
This document provides a review of the bat algorithm, which is a bio-inspired optimization algorithm developed in 2010 based on the echolocation behavior of microbats. The paper summarizes the basic behavior and formulation of the bat algorithm, reviews variants that have been developed, and highlights diverse applications that have been studied. It also discusses the essence of algorithms and links between algorithms and self-organization, noting that optimization algorithms can be viewed as complex dynamical systems that self-organize to select optimal solutions.
This lecture discusses synaptic learning rules in neural networks. It introduces the basic anatomy and physiology of synapses and different coding schemes neurons use, such as rate coding and spike timing coding. It then covers several synaptic plasticity rules, including Hebbian learning, spike-timing dependent plasticity (STDP), and the Bienenstock-Cooper-Munro (BCM) rule. It also discusses modeling synapses using the conductance-based model and implementations of STDP learning through online learning rules and weight dependence mechanisms.
This document discusses the use of machine learning techniques in actuarial science and insurance. It begins with an overview of predictive modeling applications in insurance such as fraud detection, premium computation, and claims reserving. It then covers traditional econometric techniques like Poisson and gamma regression models and how machine learning is emerging as an alternative. The document emphasizes evaluating model goodness of fit and uncertainty, and addresses issues like price discrimination and fairness.
This document discusses algorithms for predictive modeling, including logistic regression. It presents a medical dataset containing measurements of heart patients and whether they survived. Logistic regression is applied to predict survival using maximum likelihood estimation. Numerical optimization techniques like BFGS and Fisher's algorithm are discussed for maximum likelihood estimation of logistic regression. Iteratively reweighted least squares is also presented as an alternative approach.
A Firefly Algorithm for Optimizing Spur Gear Parameters Under Non-Lubricated ...irjes
Firefly algorithm is one of the emerging evolutionary approaches for complex and non-linear
optimization problems. It is inspired by natural firefly‟s behavior such as movement of fireflies based on
brightness and by overcoming the constraints such as light absorption, obstacles, distance, etc. In this research,
firefly‟s movement had been simulated computationally to identify the best parameters for spur gear pair by
considering the design and manufacturing constraints. The proposed algorithm was tested with the traditional
design parameters and found the results are at par in less computational time by satisfying the constraints.
The document summarizes key concepts about the Hopfield model, an attractor neural network model inspired by physics. It discusses how memory is stored in the symmetric connectivity matrix through Hebbian learning of stored patterns. During recall, the network dynamics relax toward one of the stored memory patterns as an attractor state. This can be modeled deterministically or stochastically. The number of memories an N-neuron network can reliably store is approximately 0.15N.
Useing PSO to optimize logit model with TensorflowYi-Fan Liou
This project aim to use particle swarm optimization (PSO), one the evolutionary algorithms, to optimize the weights and bias in logistic regression using Tensorflow.
The document discusses various techniques for classifying pictures using neural networks, including convolutional neural networks. It describes how convolutional neural networks can be used to classify images by breaking them into overlapping tiles, applying small neural networks to each tile, and pooling the results. The document also discusses using recurrent neural networks to classify videos by treating them as higher-dimensional tensors.
conference_presentation-Predator-Prey-Exponential Intergrators Ning Yang
This document summarizes using exponential integrators in Matlab to model predator-prey systems described by the Lotka-Volterra equations. It introduces the Lotka-Volterra equations that model changing prey and predator populations over time. It then discusses using the ode45 solver and exponential integrators in Matlab to numerically solve the equations. Exponential integrators separate the linear and nonlinear parts of the differential equations and provide exact solutions to the linear part. The document gives examples of the Lawson-Euler exponential integration scheme and suggests exploring additional schemes and multi-species models in future work.
The document discusses various metaheuristic algorithms for optimization problems including particle swarm optimization, bee colony optimization, ant colony optimization, and cuckoo search. It explains the components and mechanisms of these algorithms, provides pseudocode examples, and evaluates them in comparison to other metaheuristics like genetic algorithms and simulated annealing. The metaheuristics aim to efficiently search large solution spaces by mimicking natural processes like swarming behavior.
Firefly Algorithm: Recent Advances and ApplicationsXin-She Yang
This document summarizes a research paper on the firefly algorithm, a nature-inspired metaheuristic optimization algorithm. It briefly reviews the fundamentals and development of the firefly algorithm, discussing how it balances exploration and exploitation. The firefly algorithm is shown to be more efficient than intermittent search strategies through numerical experiments. Its automatic subdivision ability and ability to handle multimodality make it well-suited for complex optimization problems.
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This document summarizes key concepts from a lecture on neural networks and neuroscience:
- Single-layer neural networks like perceptrons can only learn linearly separable patterns, while multi-layer networks can approximate any function. Backpropagation enables training multi-layer networks.
- Recurrent neural networks incorporate memory through recurrent connections between units. Backpropagation through time extends backpropagation to train recurrent networks.
- The cerebellum functions similarly to a perceptron for motor learning and control. Its feedforward circuitry from mossy fibers to Purkinje cells maps to the layers of a perceptron.
This document discusses various machine learning techniques including:
1. Tree pruning involves first growing a large tree and then pruning branches that do not improve the objective function. This prevents early stopping.
2. Boosting uses multiple weak learners sequentially to get an additive model that approximates the regression function. It combines many simple models to create a powerful ensemble model.
3. Unsupervised learning techniques like principal component analysis and clustering are used to find patterns in data without an outcome variable. These include reducing dimensions and partitioning data into subgroups.
Dictionary Learning for Massive Matrix Factorizationrecsysfr
The document presents a new algorithm called Subsampled Online Dictionary Learning (SODL) for solving very large matrix factorization problems with missing values efficiently. SODL adapts an existing online dictionary learning algorithm to handle missing values by only using the known ratings for each user, allowing it to process large datasets with billions of ratings in linear time with respect to the number of known ratings. Experiments on movie rating datasets show that SODL achieves similar prediction accuracy as the fastest existing solver but with a speed up of up to 6.8 times on the largest Netflix dataset tested.
Nature-inspired metaheuristic algorithms for optimization and computional int...Xin-She Yang
This document discusses nature-inspired metaheuristic algorithms for optimization and computational intelligence. It provides an overview of topics to be covered, including introductions, metaheuristic algorithms, Monte Carlo and Markov chains, algorithm analysis, exploration and exploitation techniques, constraints handling, applications, and discussions. It also notes some key quotes about computational science being the third paradigm of science, all models being inaccurate but some useful, and algorithms performing equally well on average according to the no-free-lunch theorems.
Bayesian Nonparametrics, Applications to biology, ecology, and marketingJulyan Arbel
This document discusses applications of Bayesian nonparametric methods to various domains including toxicology, ecology, marketing, human fertility, and more. It provides examples of using rounded Gaussian mixtures and Dirichlet process mixtures to model count data from developmental toxicity studies and animal abundance data. Applications to modeling multivariate mobile phone usage data and basal body temperature curves are also described. The document emphasizes that Bayesian nonparametric approaches allow inclusion of prior information and flexible modeling of complex data structures.
Bat Algorithm: Literature Review and ApplicationsXin-She Yang
This document provides a review of the bat algorithm, which is a bio-inspired optimization algorithm developed in 2010 based on the echolocation behavior of microbats. The paper summarizes the basic behavior and formulation of the bat algorithm, reviews variants that have been developed, and highlights diverse applications that have been studied. It also discusses the essence of algorithms and links between algorithms and self-organization, noting that optimization algorithms can be viewed as complex dynamical systems that self-organize to select optimal solutions.
This lecture discusses synaptic learning rules in neural networks. It introduces the basic anatomy and physiology of synapses and different coding schemes neurons use, such as rate coding and spike timing coding. It then covers several synaptic plasticity rules, including Hebbian learning, spike-timing dependent plasticity (STDP), and the Bienenstock-Cooper-Munro (BCM) rule. It also discusses modeling synapses using the conductance-based model and implementations of STDP learning through online learning rules and weight dependence mechanisms.
This document discusses the use of machine learning techniques in actuarial science and insurance. It begins with an overview of predictive modeling applications in insurance such as fraud detection, premium computation, and claims reserving. It then covers traditional econometric techniques like Poisson and gamma regression models and how machine learning is emerging as an alternative. The document emphasizes evaluating model goodness of fit and uncertainty, and addresses issues like price discrimination and fairness.
This document discusses algorithms for predictive modeling, including logistic regression. It presents a medical dataset containing measurements of heart patients and whether they survived. Logistic regression is applied to predict survival using maximum likelihood estimation. Numerical optimization techniques like BFGS and Fisher's algorithm are discussed for maximum likelihood estimation of logistic regression. Iteratively reweighted least squares is also presented as an alternative approach.
A Firefly Algorithm for Optimizing Spur Gear Parameters Under Non-Lubricated ...irjes
Firefly algorithm is one of the emerging evolutionary approaches for complex and non-linear
optimization problems. It is inspired by natural firefly‟s behavior such as movement of fireflies based on
brightness and by overcoming the constraints such as light absorption, obstacles, distance, etc. In this research,
firefly‟s movement had been simulated computationally to identify the best parameters for spur gear pair by
considering the design and manufacturing constraints. The proposed algorithm was tested with the traditional
design parameters and found the results are at par in less computational time by satisfying the constraints.
The document summarizes key concepts about the Hopfield model, an attractor neural network model inspired by physics. It discusses how memory is stored in the symmetric connectivity matrix through Hebbian learning of stored patterns. During recall, the network dynamics relax toward one of the stored memory patterns as an attractor state. This can be modeled deterministically or stochastically. The number of memories an N-neuron network can reliably store is approximately 0.15N.
Useing PSO to optimize logit model with TensorflowYi-Fan Liou
This project aim to use particle swarm optimization (PSO), one the evolutionary algorithms, to optimize the weights and bias in logistic regression using Tensorflow.
The document discusses various techniques for classifying pictures using neural networks, including convolutional neural networks. It describes how convolutional neural networks can be used to classify images by breaking them into overlapping tiles, applying small neural networks to each tile, and pooling the results. The document also discusses using recurrent neural networks to classify videos by treating them as higher-dimensional tensors.
conference_presentation-Predator-Prey-Exponential Intergrators Ning Yang
This document summarizes using exponential integrators in Matlab to model predator-prey systems described by the Lotka-Volterra equations. It introduces the Lotka-Volterra equations that model changing prey and predator populations over time. It then discusses using the ode45 solver and exponential integrators in Matlab to numerically solve the equations. Exponential integrators separate the linear and nonlinear parts of the differential equations and provide exact solutions to the linear part. The document gives examples of the Lawson-Euler exponential integration scheme and suggests exploring additional schemes and multi-species models in future work.
The document discusses various metaheuristic algorithms for optimization problems including particle swarm optimization, bee colony optimization, ant colony optimization, and cuckoo search. It explains the components and mechanisms of these algorithms, provides pseudocode examples, and evaluates them in comparison to other metaheuristics like genetic algorithms and simulated annealing. The metaheuristics aim to efficiently search large solution spaces by mimicking natural processes like swarming behavior.
Firefly Algorithm: Recent Advances and ApplicationsXin-She Yang
This document summarizes a research paper on the firefly algorithm, a nature-inspired metaheuristic optimization algorithm. It briefly reviews the fundamentals and development of the firefly algorithm, discussing how it balances exploration and exploitation. The firefly algorithm is shown to be more efficient than intermittent search strategies through numerical experiments. Its automatic subdivision ability and ability to handle multimodality make it well-suited for complex optimization problems.
JAISTサマースクール2016「脳を知るための理論」講義04 Neural Networks and Neuroscience hirokazutanaka
This document summarizes key concepts from a lecture on neural networks and neuroscience:
- Single-layer neural networks like perceptrons can only learn linearly separable patterns, while multi-layer networks can approximate any function. Backpropagation enables training multi-layer networks.
- Recurrent neural networks incorporate memory through recurrent connections between units. Backpropagation through time extends backpropagation to train recurrent networks.
- The cerebellum functions similarly to a perceptron for motor learning and control. Its feedforward circuitry from mossy fibers to Purkinje cells maps to the layers of a perceptron.
This document discusses various machine learning techniques including:
1. Tree pruning involves first growing a large tree and then pruning branches that do not improve the objective function. This prevents early stopping.
2. Boosting uses multiple weak learners sequentially to get an additive model that approximates the regression function. It combines many simple models to create a powerful ensemble model.
3. Unsupervised learning techniques like principal component analysis and clustering are used to find patterns in data without an outcome variable. These include reducing dimensions and partitioning data into subgroups.
Dictionary Learning for Massive Matrix Factorizationrecsysfr
The document presents a new algorithm called Subsampled Online Dictionary Learning (SODL) for solving very large matrix factorization problems with missing values efficiently. SODL adapts an existing online dictionary learning algorithm to handle missing values by only using the known ratings for each user, allowing it to process large datasets with billions of ratings in linear time with respect to the number of known ratings. Experiments on movie rating datasets show that SODL achieves similar prediction accuracy as the fastest existing solver but with a speed up of up to 6.8 times on the largest Netflix dataset tested.
Nature-inspired metaheuristic algorithms for optimization and computional int...Xin-She Yang
This document discusses nature-inspired metaheuristic algorithms for optimization and computational intelligence. It provides an overview of topics to be covered, including introductions, metaheuristic algorithms, Monte Carlo and Markov chains, algorithm analysis, exploration and exploitation techniques, constraints handling, applications, and discussions. It also notes some key quotes about computational science being the third paradigm of science, all models being inaccurate but some useful, and algorithms performing equally well on average according to the no-free-lunch theorems.
Este documento presenta los contenidos mínimos para la prueba de matemáticas de 2o de ESO de septiembre. Incluye siete unidades: 1) Divisibilidad y números enteros, 2) Sistema de numeración decimal, 3) Fracciones, 4) Proporcionalidad y porcentajes, 5) Introducción al álgebra, 6) Ecuaciones y 7) Estadística. Cada unidad describe los contenidos clave y criterios de evaluación asociados.
This document summarizes a robot arena game project. It includes an architecture overview with three main components: world representation using an arena map, robot characters, and physics simulation; individual AI using behaviors, decision trees, and evaluation; and group AI using a defense-based strategy. It describes the arena map, robot characters, physics simulation, individual robot behaviors and decision making, and how group AI evaluates threats and provides support to robots in danger. The project presentation includes videos demonstrating the game's physics, behaviors, and defense-based group strategy.
This document summarizes a presentation on using genetic algorithms to solve constraint problems in product lines. It discusses using genetic algorithms to select optimal configurations of features while minimizing constraints violations, maximizing feature richness and usage, and minimizing defects and costs. Two methods are proposed: differential evolution and indicator-based search. The goals are to evolve towards configurations that satisfy constraints and optimize multiple objectives related to features.
Presentasi dari Sanrio Hernanto, Crew dari Agate Studio dalam event Talent Development Saturday Agate Studio. http://agatestudio.com
Talent Development Saturday adalah acara Agate Studio crew sharing berbagai topik. Mulai dari Art, Programming, Game Production dan General Business/Management. TDS ini dilakukan tanggal 8 Februari 2014 di Bandung Digital Valley.
Effects of population initialization on differential evolution for large scal...Borhan Kazimipour
This work provides an in-depth investigation of the effects of population initialization on Differential Evolution (DE) for dealing with large scale optimization problems. Firstly, we conduct a statistical parameter sensitive analysis to study the effects of DE’s control parameters on its performance of solving large scale problems. This study reveals the optimal parame- ter configurations which can lead to the statistically superior performance over the CEC-2013 large-scale test problems. Thus identified optimal parameter configurations interestingly favour much larger population sizes while agreeing with the other parameter settings compared to the most commonly employed parameter configuration. Based on one of the identified optimal configurations and the most commonly used configuration, which only differ in the population size, we investigate the influence of various population initialization techniques on DE’s performance. This study indicates that initialization plays a more crucial role in DE with a smaller population size. However, this observation might be the result of insufficient convergence due to the use of a large population size under the limited computational budget, which deserve more investigations.
Póster: Comparing evolutionary algorithms to solve the game of MasterMindJuan J. Merelo
The document compares two evolutionary algorithms, best-worst search (BS) and Evo++, for solving the game of MasterMind. BS search works by first searching for a consistent combination, then searching within the set of consistent combinations. Evo++ searches for a consistent combination simultaneously. Both algorithms are tested using different scoring methods such as most parts scored, best worst case scored, and entropy scored. The results show that the entropy score offers better results overall and that Evo++ needs fewer evaluations than BS to find solutions, though BS is faster in terms of time.
Metaheuristic Optimization: Algorithm Analysis and Open ProblemsXin-She Yang
The document discusses metaheuristic algorithms for optimization problems. It begins with introductions from two experts about computational science and the usefulness of models. It then provides an overview of different metaheuristic algorithms like simulated annealing, genetic algorithms, and particle swarm optimization. The document discusses how these algorithms generate new solutions through techniques like probabilistic moves, Markov chains, crossover and mutation. It provides examples and diagrams to illustrate how various metaheuristic algorithms work.
Benchmarking languages for evolutionary algorithmsJuan J. Merelo
This document acknowledges funding support from the Spanish Ministry of Economy and Competitiveness projects TIN2014-56494-C4-3-P and project V17-2015 of the Microprojects program 2015 from CEI BioTIC Granada. It also lists image credits for a background, cars, language logos, and winners.
The GENETIC ALGORITHM is a model of machine learning which derives its behavior from a metaphor of the processes of EVOLUTION in nature. Genetic Algorithm (GA) is a search heuristic that mimics the process of natural selection. This heuristic (also sometimes called a metaheuristic) is routinely used to generate useful solutions to optimization and search problems.
Visão Geral, Ferramentas e Aplicações dos Algoritmos GenéticosNorton Guimarães
O documento discute algoritmos genéticos, incluindo a teoria da evolução natural, conceitos, aplicações e ferramentas. Aborda os principais conceitos como população inicial, função de avaliação, operadores genéticos, seleção e aplicações em problemas de otimização.
This document summarizes an introduction to evolutionary algorithms and their potential applications. It discusses how genetic algorithms are inspired by biological evolution through natural selection and genetic recombination/mutation. An example is provided of how a genetic algorithm could be used to evolve the color blue. The author's research involves using genetic algorithms to evolve mathematical disease models to fit epidemiological data. Open questions are raised about using genetic algorithms to inform parameter selection for models. Collaboration is sought on this open problem.
Here are the answers to the brain teasers:
1. Levy flights are modified in Cuckoo Search algorithm.
2. John Holland was the first person to work on evolutionary computation in the 1970s.
3. Evolutionary algorithms are preferred because they can search very large spaces of possible solutions and do not require derivatives or other auxiliary knowledge to find the optima.
4. Some shortcomings of PSO overcome by Cuckoo Search include getting stuck in local optima and its inability to utilize the Lévy flights for better exploration of the search space.
Cuckoo search is an optimization algorithm inspired by cuckoos that lay eggs in other birds' nests. It works by representing each potential solution as an "egg" in a nest, with the aim of replacing poor solutions with new, potentially better ones. There are three main rules: each cuckoo lays one egg at a time in a randomly chosen nest; the best nests carrying high-quality eggs carry over to the next generation; and some host birds can detect alien eggs and abandon the nest, requiring the cuckoo to lay again in a new nest. The algorithm uses random walks to explore the search space and find optimal solutions. It is simple to implement compared to other metaheuristic algorithms and has been successfully applied
This document discusses various bio-inspired algorithms including evolutionary algorithms, swarm algorithms, immune algorithms, cultural algorithms, neural algorithms, and provides examples of their applications. It summarizes genetic algorithms and differential evolution algorithms. It also lists some popular libraries for implementing these algorithms in Python and R and provides examples.
Genetic algorithms are a type of evolutionary algorithm that mimics natural selection. They operate on a population of potential solutions applying operators like selection, crossover and mutation to produce the next generation. The algorithm iterates until a termination condition is met, such as a solution being found or a maximum number of generations being produced. Genetic algorithms are useful for optimization and search problems as they can handle large, complex search spaces. However, they require properly defining the fitness function and tuning various parameters like population size, mutation rate and crossover rate.
This is an easy introduction to the concept of Genetic Algorithms. It gives Simple explanation of Genetic Algorithms. Covers the major steps that are required to implement the GA for your tasks.
For other resources visit: http://pimpalepatil.googlepages.com/
For more information mail me on pbpimpale@gmail.com
Enhancing Intelligent Agents By Improving Human Behavior Imitation Using Sta...Osama Salaheldin
This thesis introduces a novel non-neurological method for modeling human
behaviors. It integrates statistical modeling techniques with “the society of mind” theory
to build a system that imitates human behaviors. The introduced Human Imitating
Cognitive Modeling Agent (HICMA) can autonomously change its behavior according
to the situation it encounters.
Genetic algorithms are adaptive heuristic search algorithms inspired by Darwin's theory of evolution. They are used to solve optimization problems in machine learning by generating high-quality solutions. Genetic algorithms work with a population of potential solutions and apply operators like crossover and mutation to produce new solutions, with the fittest solutions selected to pass traits to subsequent generations.
The document discusses genetic algorithms, which are a class of optimization algorithms inspired by biological evolution. It describes the key components of genetic algorithms, including encoding solutions as chromosomes, initializing a population randomly, evaluating fitness, and applying genetic operators like crossover and mutation to produce new generations. The goal is to evolve increasingly fit solutions over many iterations until an optimal or near-optimal solution is found for the given problem.
Data Science - Part XIV - Genetic AlgorithmsDerek Kane
This lecture provides an overview on biological evolution and genetic algorithms in a machine learning context. We will start off by going through a broad overview of the biological evolutionary process and then explore how genetic algorithms can be developed that mimic these processes. We will dive into the types of problems that can be solved with genetic algorithms and then we will conclude with a series of practical examples in R which highlights the techniques: The Knapsack Problem, Feature Selection and OLS regression, and constrained optimizations.
Evolutionary Computing is a research area within computer science. As the name suggest, it is a special flavour of computing, which draws inspiration from the process of natural evolution. The fundamental metaphor of evolutionary computing relates this powerful natural evolution to a particular style of problem solving – that of trial and error.
This paper proposes a parallel evolutionary algorithm to solve single variable optimization problems. Specifically:
- It presents a genetic algorithm approach that runs in parallel using a master-slave model, where the master performs genetic operations and distributes individuals to slaves for evaluation.
- The algorithm is tested on single variable optimization problems to find minimum/maximum values.
- Experimental results show the parallel genetic algorithm is effective at finding optimal solutions to these problems and represents an efficient parallel approach for optimization.
Genetic algorithms are a family of population-based metaheuristic optimization algorithms inspired by biological evolution, including natural selection and genetics. They maintain and improve a population of candidate solutions by evaluating their fitness and applying operations like selection, crossover and mutation to generate new solutions. Originally developed by John Holland and colleagues in 1960 based on Charles Darwin's theory of evolution, genetic algorithms have become one of the most popular evolutionary algorithms.
The document discusses various optimization techniques and algorithms including genetic algorithms, artificial neural networks, and data analytics. Specifically, it covers genetic algorithms in more detail including the basic concepts of populations of chromosomes evolving over generations using processes like crossover, mutation, and selection to optimize an objective function. It also discusses other metaheuristic algorithms like simulated annealing, particle swarm optimization, and ant colony optimization which are inspired by natural processes and use stochastic components to find robust solutions.
Class GA. Genetic Algorithm,Genetic Algorithmraed albadri
Genetic Algorithms are good at taking large, potentially huge search spaces and navigating them, looking for optimal combinations of things, solutions you might not otherwise find in a lifetime
Genetic Algorithm
Genetic algorithms are a class of evolutionary algorithms that use techniques inspired by evolutionary biology such as inheritance, mutation, selection, and crossover. They work by maintaining a population of potential solutions and applying genetic operators of selection, crossover and mutation to generate new populations in search of an optimal solution. A genetic algorithm begins with a randomly generated population that is evaluated and selected using a fitness function. Selected solutions then reproduce through crossover and mutation to create a new population, and the process repeats until a termination condition is reached.
Genetic algorithms are a type of evolutionary algorithm that uses techniques inspired by evolutionary biology such as inheritance, mutation, selection, and crossover. They are implemented as computer simulations that evolve solutions to optimization and search problems. Genetic algorithms use a population of abstract representations of candidate solutions called chromosomes. Operators like crossover and mutation are applied to chromosomes to generate new populations, with the fittest solutions most likely to reproduce and pass on their traits to the next generation. This process is repeated until a satisfactory solution is found.
Genetic algorithms are a type of evolutionary algorithm that use techniques inspired by Darwinian evolution such as inheritance, mutation, selection, and crossover. They are commonly used to find optimal or near-optimal solutions to difficult problems by mimicking natural selection. A genetic algorithm begins with a population of random solutions and uses selection, crossover, and mutation to generate new solutions. The fittest solutions survive and are selected to reproduce, creating a new generation. This process is repeated until a termination condition is met. Genetic algorithms are inspired by biological evolution and can be applied to optimization and search problems.
Genetic algorithms are a type of evolutionary algorithm that use techniques inspired by Darwinian evolution such as inheritance, mutation, selection, and crossover. They are commonly used to find optimal or near-optimal solutions to difficult problems by mimicking natural selection. A genetic algorithm begins with a population of random solutions and uses selection, crossover, and mutation to generate new solutions. The fittest solutions survive and less fit solutions are removed. This process is repeated until an optimal solution is found.
Genetic algorithms are a type of evolutionary algorithm that use techniques inspired by Darwinian evolution such as inheritance, mutation, selection, and crossover. They are commonly used to find optimal or near-optimal solutions to difficult problems by mimicking natural selection. A genetic algorithm initializes a population of random solutions and uses selection, crossover, and mutation to generate new solutions. The fittest solutions survive to be selected for the next generation. This process is repeated until a termination condition is reached. Genetic algorithms are inspired by biological evolution and can be applied to optimization and search problems.
Genetic algorithms are a type of evolutionary algorithm that use techniques inspired by Darwinian evolution, such as inheritance, mutation, selection, and crossover. They are commonly used to generate useful solutions to optimization and search problems by evolving candidate solutions over generations. Genetic algorithms work on a population of candidate solutions represented by chromosomes. They evolve toward better solutions through techniques like selection of the fittest solutions, crossover of parent solutions to create new solutions, and random mutation of new solutions. The algorithm terminates when either a maximum number of generations has been produced or a satisfactory fitness level has been reached in the population.
Genetic algorithms are a type of evolutionary algorithm that use techniques inspired by Darwinian evolution, such as inheritance, mutation, selection, and crossover. They are commonly used to generate useful solutions to optimization and search problems by evolving candidate solutions over generations. Genetic algorithms work on a population of candidate solutions represented by chromosomes. They evolve toward better solutions through techniques like selection of the fittest solutions, crossover of parent solutions to create new solutions, and random mutation of new solutions. Genetic algorithms are applied to problems with large search spaces or when the solution is unknown.
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Building RAG with self-deployed Milvus vector database and Snowpark Container...Zilliz
This talk will give hands-on advice on building RAG applications with an open-source Milvus database deployed as a docker container. We will also introduce the integration of Milvus with Snowpark Container Services.
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slackshyamraj55
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
20 Comprehensive Checklist of Designing and Developing a WebsitePixlogix Infotech
Dive into the world of Website Designing and Developing with Pixlogix! Looking to create a stunning online presence? Look no further! Our comprehensive checklist covers everything you need to know to craft a website that stands out. From user-friendly design to seamless functionality, we've got you covered. Don't miss out on this invaluable resource! Check out our checklist now at Pixlogix and start your journey towards a captivating online presence today.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Goodbye Windows 11: Make Way for Nitrux Linux 3.5.0!SOFTTECHHUB
As the digital landscape continually evolves, operating systems play a critical role in shaping user experiences and productivity. The launch of Nitrux Linux 3.5.0 marks a significant milestone, offering a robust alternative to traditional systems such as Windows 11. This article delves into the essence of Nitrux Linux 3.5.0, exploring its unique features, advantages, and how it stands as a compelling choice for both casual users and tech enthusiasts.