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Mastering Machine Learning with R

#artificialintelligence

Machine learning is a field of Artificial Intelligence to build systems that learn from data. Given the growing prominence of R--a cross-platform, zero-cost statistical programming environment--there has never been a better time to start applying machine learning to your data. The book starts with introduction to Cross-Industry Standard Process for Data Mining. It takes you through Multivariate Regression in detail. Moving on, you will also address Classification and Regression trees. You will learn a couple of "Unsupervised techniques."


Deep Learning Tutorial part 3/3: Deep Belief Networks - Lazy Programmer

#artificialintelligence

This is part 3/3 of a series on deep belief networks. Part 1 focused on the building blocks of deep neural nets – logistic regression and gradient descent. Part 2 focused on how to use logistic regression as a building block to create neural networks, and how to train them. Part 3 will focus on answering the question: "What is a deep belief network?" and the algorithms we use to do training and prediction. In its simplest form, a deep belief network looks exactly like the artificial neural networks we learned about in part 2! As long as there is at least 1 hidden layer, the model is considered to be "deep".



Generating Large Images from Latent Vectors

#artificialintelligence

In some domains of digital generative art, an artist would typically not work with an image editor directly to create an artwork. Typically, the artist would program a set of routines that would generate the actual images. These routines compose of instructions to tell the machine to draw lines and shapes at certain coordinates, and manipulate colours in some mathematically defined way. The final artwork, which may be presented as a pixellated image, or printed out on physical medium, can be entirely captured and defined by a set of mathematical routines. Many natural images have interesting mathematical properties. Simple math functions have been written to generate natural fractal-like patterns such as tree branches and snowflakes. Like fractals, a simple set of mathematical rules can sometimes generate a highly complicated image that can be zoomed-in or zoomed-out indefinitely. Once such a function is found, then the image can be automatically scaled up and down, or stretched around, by just scaling the inputs. If this function has some fun properties or exhibit some internal structure, it will be interesting to see what the image looks like if we blow up the image to a very high resolution much bigger than the original image. This function can also be defined as a neural network, with arbitrary architectures.


A Comparison between Deep Neural Nets and Kernel Acoustic Models for Speech Recognition

#artificialintelligence

We study large-scale kernel methods for acoustic modeling and compare to DNNs on performance metrics related to both acoustic modeling and recognition. Measuring perplexity and frame-level classification accuracy, kernel-based acoustic models are as effective as their DNN counterparts. However, on token-error-rates DNN models can be significantly better. We have discovered that this might be attributed to DNN's unique strength in reducing both the perplexity and the entropy of the predicted posterior probabilities. Motivated by our findings, we propose a new technique, entropy regularized perplexity, for model selection. This technique can noticeably improve the recognition performance of both types of models, and reduces the gap between them.


Top 23 Chatterbot Software - Decide Software

#artificialintelligence

Top 23 Chatterbot Software: Chatterbot are computer program which are designed to simulate an intelligent conversation with one or more human users via auditory or textual methods, for engaging in conversation. Chatterbot are text based conversation agent which can interact with human users through some medium, such as an instant message service. The primary aim of such simulation has been to fool the user into thinking that the program's output has been produced by a human. Programs doing this are referred to as Artificial Conversational Entities, talk bots, chatterboxes, chatter robot, chatterbot, chatbot, or chat bot. Some of the chatterbots use natural language processing systems, and some others scan for keywords within the input and respond with a reply with the most matching keywords, or similar wording pattern, from a textual database.


Top 12 Brain Inspired Artificial Intelligence projects - Decide Software

#artificialintelligence

The virtual brain will be an exceptional tool giving neuroscientists a new understanding of the brain and a better understanding of neurological diseases. The Blue Brain project began in 2005 with an agreement between the EPFL and IBM.The Blue Brain Project goal is to create a synthetic brain by reverse engineering the mammalian brain down to the molecular level. The project, founded in May 2005 in Switzerland, is to study the brain's architectural and functional principles. There are a number of sub-projects, including the Cajal Blue Brain, and others run by universities and independent laboratories. HNeT Application Development System which was released in 1990 contained a number of example applications, based on the complex valued phase coherence/decoherence process including complex valued Hopfield network or complex associative memory.


Introducing Wealthfront 3.0

#artificialintelligence

When we launched Wealthfront in December 2011, the idea behind our first generation service was simple: take the best practices of investment management like diversification, rebalancing, dividend reinvestment and tax-loss harvesting, and automate them so investors could get these benefits without the high fees and high minimums of the traditional industry. The advent of low-cost ETFs and the relentlessly improving economics of consumer software made Wealthfront 1.0 possible. In December 2013, we launched Wealthfront 2.0. Our second generation service built a series of high value-added services that previously were only available to the wealthy, and layered them on top of our basic service. These innovative services include our Direct Indexing Platform, Single-Stock Diversification Service, and Automated Tax-Minimized Brokerage Transfers.


Oculus Rift delivery chaos after 'component shortage' causes delays

The Independent - Tech

Nasa has announced that it has found evidence of flowing water on Mars. Scientists have long speculated that Recurring Slope Lineae -- or dark patches -- on Mars were made up of briny water but the new findings prove that those patches are caused by liquid water, which it has established by finding hydrated salts. Several hundred camped outside the London store in Covent Garden. The 6s will have new features like a vastly improved camera and a pressure-sensitive "3D Touch" display


Sequence-Based Machine Learning Methods in Computational Biology

#artificialintelligence

With the development of high-throughput techniques, genomic and proteomic data were increased exponentially. In order to rapidly and effectively mine the biological functions from these data, it is highly desirable to develop computational methods. As excellent complements to experimental techniques, sequence-based computational methods have shown tremendous advances in decoding the genomic and proteomic data. However, the application of machine learning method in genomics and proteomics fell behind the data growth. Therefore, this special issue will focus on the aspects of application of machine learning method in genomics and proteomics.