Instructional Material
Warning: This Christmas Carol May Haunt Your Dreams
Perhaps the flat delivery, the Christmas word salad and the elementary melody tipped you off to the computer-generated nature of this performance. It's from a team at the University of Toronto Computer Science Department, which has been teaching a computer to write sing-along music. Dubbed "neural karaoke," this artificial intelligence system has been fed more than 100 hours of music to learn how to create simple melodies. It was also trained to recognize images and compose related lyrics. Listen: The Music From'Westworld' Is Finally Here Using an algorithm, the AI finds patterns in the data and essentially "learns" music -- including beats and chords. It learned the correlation between lyrics and music notes from around 50 hours of pop songs, says Hang Chu, one of the researchers.
Data-Efficient Deep Learning with G-CNNs – Scyfer
This hunger for data, or "statistical inefficiency" is perhaps the most significant practical limitation of current deep learning technology. Many of our clients at Scyfer have problems that could be solved by deep learning, but don't have large annotated datasets. Scyfer Active Learning Platform: once integrated, our system will passively observe the work of a domain expert (whether that's a medical doctor diagnosing patients or a factory worker identifying defective products). As the system is starting to learn how to imitate the expert, it will identify its own weaknesses and ask for guidance from the expert, thereby greatly accelerating its learning without requiring so many examples. Data-efficient deep networks: by building in prior knowledge, like "a rotated teddy bear is still a teddy bear", we can drastically reduce the number of examples required to learn a new concept.
Deciphering the Neural Language Model
Recently, I have been working on the Neural Networks for Machine Learning course offered by Coursera and taught by Geoffrey Hinton. Overall, it is a nice course and provides an introduction to some of the modern topics in deep learning. However, there are instances where the student has to do lots of extra work in order to understand the topics covered in full detail. One of the assignments in the course is to study the Neural Probabilistic Language Model (The related article can be downloaded from here). An example dataset, as well as a code written in Octave (equivalently Matlab) are provided for the assignment.
Random Walk Models of Network Formation and Sequential Monte Carlo Methods for Graphs
Bloem-Reddy, Benjamin, Orbanz, Peter
We introduce a class of network models that insert edges by connecting the starting and terminal vertices of a random walk on the network graph. Within the taxonomy of statistical network models, this class is distinguished by permitting the location of a new edge to explicitly depend on the structure of the graph, but being nonetheless statistically and computationally tractable. In the limit of infinite walk length, the model converges to an extension of the preferential attachment model---in this sense, it can be motivated alternatively by asking what preferential attachment is an approximation to. Theoretical properties, including the limiting degree sequence, are studied analytically. If the entire history of the graph is observed, parameters can be estimated by maximum likelihood. If only the final graph is available, its history can be imputed using MCMC. We develop a class of sequential Monte Carlo algorithms that are more generally applicable to sequential random graph models, and may be of interest in their own right. The model parameters can be recovered from a single graph generated by the model. Applications to data clarify the role of the random walk length as a length scale of interactions within the graph.
Student and Faculty Guide – 10 easy steps to get up and running with Azure Machine Learning
My colleague Amy Nicholson is the UK expert on Azure Machine Learning, the following blog post is after a quizzing session to get understand how to get started with Azure Machine Learning" Each student receives $100 of Azure credit per month, for 6 months. The Faculty member receives $250 per month, for 12 months. The Azure machine learning team provided a very nice walkthrough tutorial which covers a lot of the basics. This tutorial is really useful as it takes you through the entire process of creating an AzureML workspace, uploading data, creating an experiment to predict someone's credit risk, building, training, and evaluating the models, publishing your best model as a web service, and calling that web service. Now you need to learn how to import a data set into Azure Machine Learning, and where to find interesting data to build something amazing.
How to start learning Artificial Intelligence? - IT Enterprise
How to start learning Artificial Intelligence?Software Development 0 comments by Thomas De Vos Artificial intelligence (AI) is a sub-division of computer science. The main goal is to enable a smart device (e.g. First mentioned back in the 50s in the paper "Computing Machinery and Intelligence", written by mathematician Alan Turing, artificial intelligence is now a very popular field, and we have advanced technology to "blame" for that. This article is about learning Artificial Intelligence and we will give you a comprehensive guide that you can use as a starting point towards learning artificial intelligence. Today's AI-based computers can beat chess champions, so it's safe to say that little by little the world is taking a turn. Some people say that artificial intelligence will save humanity; others, claim it will destroy it. The truth is, we don't really know what AI is capable of. Artificial intelligence is a fascinating area of computer science we all want to know more about. We've seen cars drive by themselves and computers understand our basic needs and wants. Robotics is yet another sub-field of computer science that depends entirely on AI. Advanced technology has gotten to a whole new level; a level that some people just can't accept. Artificial intelligence studies how people's brain think, learn, work, and make decisions.
Predicting flu deaths with R
As Google learned, predicting the spread of influenza, even with mountains of data, is notoriously difficult. Nonetheless, bioinformatician and R user Shirin Glander has created a two-part tutorial about predicting flu deaths with R (part 2 here). The analysis is based on just 136 cases of influenza A H7N9 in China in 2013 (data provided in the outbreaks package) so the intent was not to create a generally predictive model, but by providing all of the R code and graphics Shirin has created a useful example of real-word predictive modeling with R. The tutorial covers loading and cleaning the data (including a nice example of using the mice package to impute missing values) and begins with some exploratory data visualizations. I was particularly impressed by the use of density charts (using the stat_density2d ggplot2 aesthetic) to highlight differences in the scatterplots of flu cases ending in death and recovery. Decision trees (implemented using rpart and visualized using fancyRpartPlot from the rattle package) Random Forests (using caret's "rf" training method) Elastic-Net Regularized Generalized Linear Models (using caret's "glmnet" training method) K-nearest neighbors clustering (using caret's "kknn" training method) Penalized Discriminant Analysis (using caret's "pda" training method) and in Part 2, Extreme gradient boosting using the xgboost package and various preprocessing techniques from the caret package Due to the limited data size, there's not too much difference between the models: in each case, 13-15 of the 23 cases were classified correctly.
15 Mathematics MOOCs for Data Science
Dates: Self-paced (any time) Description excerpt: Do you want to learn how to harvest health science data from the Internet? Or learn to understand the world through data analysis? Start by learning R Statistics! Learn how to use R, a powerful open source statistical programming language, and see why it has become the tool of choice in many industries in this introductory R statistics course. Advanced A few slightly more advanced topics covering optimization and applied linear algebra.
Master Machine Learning and AI with these 3 Great Bundles!
Machine learning is a computer's ability to learn and adapt without being explicitly programmed. This is a widely useful technology that aids in banking, DNA sequencing, search engines, and myriad other applications. If this sounds like a career you'd be interested in, then you'll want to learn all there is to know about machine learning, and you'll want to start from the groun up. Luckily, Windows Central Digital Offers has three awesome course bundles that'll get you up and running and on your way to programming machine learning and AI -- all for $120! This bundle takes you from the basics of machine learning to some advanced techniques, as well as learning to code with Python.
Mining of Massive Datasets
Big-data is transforming the world. Here you will learn data mining and machine learning techniques to process large datasets and extract valuable knowledge from them. The book is based on Stanford Computer Science course CS246: Mining Massive Datasets (and CS345A: Data Mining). The book, like the course, is designed at the undergraduate computer science level with no formal prerequisites. To support deeper explorations, most of the chapters are supplemented with further reading references.