Evolutionary Systems
Swarm Optimization: Goodbye Gradients
These combinations of real-time biological systems can blend knowledge, exploration, and exploitation to unify intelligence and solve problems more efficiently. These simple agents interact locally, within their environment, and new behaviors emerge from the group as a whole. In the world of evolutionary alogirthms one such inspired method is particle swarm optimization (PSO). It is a swarm intelligence based computational technique that can be used to find an approximate solution to a problem by iteratively trying to search candidate solutions (called particles) with regard to a given measure of quality around a global optimum. The movements of the particles are guided by their own best known position in the search-space as well as the entire swarm's best known position.
Swarm AI: Shaping the Conscience of Tomorrow's Artificial Intelligence - 1redDrop
Artificial intelligence might arguably be the newest frontier of human experience, but there's no denying that man has been fascinated with the concept for millennia. From the mythical stories of Hephaestus creating mechanical servants and brazen-footed bulls that puffed fire from their mouths, to the talking heads of the 13th century, to IBM Watson and modern forms of AI, the subject has been bubbling on the surface of human consciousness. The time is now here for AI to come of age; and, in many ways, it already has. But now there's a new problem, and it's not one of how AI can be implemented, as has been the major challenge in the past. AI has now sprouted into a plethora of forms, each rivaling the other in an attempt to showcase its superior capabilities.
Using Genetic Algorithms in Ruby - via @codeship
Did you know that there's a way to use the power of natural selection to solve programming challenges? It's when you want to find not just a valid solution but the solution that will give you the best results. For example, if you have a backpack that only fits a certain amount of stuff and you want to maximize the amount of stuff you can bring, then you could use a genetic algorithm to find the best solution. This is also known as *the knapsack problem*. The genetic algorithm is not the only way to solve this kind of problem, but it's an interesting one because it's modeled after real-world behavior.
Introduction to Optimization with Genetic Algorithm
Bio: Ahmed Gad received his B.Sc. degree with excellent with honors in information technology from the Faculty of Computers and Information (FCI), Menoufia University, Egypt, in July 2015. For being ranked first in his faculty, he was recommended to work as a teaching assistant in one of the Egyptian institutes in 2015 and then in 2016 to work as a teaching assistant and a researcher in his faculty. His current research interests include deep learning, machine learning, artificial intelligence, digital signal processing, and computer vision.
DEPSO Algorithm: Project Portal – Xiao-Feng Xie, Ph.D.
DEPSO [1], or called DEPS, is an algorithm for (constrained) numerical optimization problem (NOP). DEPSO combines the advantages of Particle Swarm Optimization (PSO) and Differential Evolution (DE). It is incorporated into cooperative group optimization (CGO) system [2]. The DEPSO paper has been cited over 400 times with various applications. DEPSO was also implemented (by Sun Microsystems Inc.) into NLPSolver (Solver for Nonlinear Programming), an extension of Calc in Apache OpenOffice.
Bayesian Optimization for Dynamic Problems
Nyikosa, Favour M., Osborne, Michael A., Roberts, Stephen J.
We propose practical extensions to Bayesian optimization for solving dynamic problems. We model dynamic objective functions using spatiotemporal Gaussian process priors which capture all the instances of the functions over time. Our extensions to Bayesian optimization use the information learnt from this model to guide the tracking of a temporally evolving minimum. By exploiting temporal correlations, the proposed method also determines when to make evaluations, how fast to make those evaluations, and it induces an appropriate budget of steps based on the available information. Lastly, we evaluate our technique on synthetic and real-world problems.
Introduction to Optimization with Genetic Algorithm
Selection of the optimal parameters for machine learning tasks is challenging. Some results may be bad not because the data is noisy or the used learning algorithm is weak, but due to the bad selection of the parameters values. This article gives a brief introduction about evolutionary algorithms (EAs) and describes genetic algorithm (GA) which is one of the simplest random-based EAs. Suppose that a data scientist has an image dataset divided into a number of classes and an image classifier is to be created. After the data scientist investigated the dataset, the K-nearest neighbor (KNN) seems to be a good option.
Super-intelligence Will Appear Before Humans Upload Consciousness to the Cloud
He started his talk with a broader philosophical statement: "Anything is possible." Referring to SpaceX and Tesla as the most cutting edge companies he has funded, he continued, "The future of technology that we couldn't imagine 15–20 years ago is obviously now possible. There is no doubt that the future of cars will be electric and autonomous. He then reflected on the SpaceX story. "I remember Elon came back from Russia very disappointed with the realization that there is a very weird supply chain in this industry.
A.I. Uses Evolutionary Algorithm to Find Previously Unknown Video Game Hack
An Atari-playing artificial intelligence created by researchers at the University of Freiburg in Germany has discovered a never-before-seen bug in the classic game Qbert. Using an inexplicable and seemingly random series of moves, the algorithm achieved an unprecedented high score in a matter of minutes. The researchers explained how they trained their A.I. to achieve an impossible result rivaling James T. Kirk's defeat of the Kobayashi Maru in a paper posted on the preprint side arXiv on February 24. Rather than employing a standard reinforcement learning approach, they used a lesser-known technique called evolutionary strategy. As the name suggests, the method is loosely based of the Darwinian concept of natural selection.
AI can beat us at games--but sometimes, that's by cheating
A new Atari-playing AI appears to use some underhanded tricks to get high scores when left to its own devices. What's new: An AI that learns through a trial-and-error technique called evolution strategies has been pitted against eight Atari games. Its approach gradually mutates the way it tackles tasks, keeping hold of the successful tricks and discarding ones that don't work. Any means necessary: But New Scientist notes that when playing the arcade classic Q*bert, the AI developed some unusual winning strategies. It found a software bug that it could exploit to get points, and a trick where carefully planned suicide allowed it to progress through the game. Why it matters: On one hand, it shows how evolutionary approaches let AI succeed without any human help.