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Exponential Machines

arXiv.org Machine Learning

Modeling interactions between features improves the performance of machine learning solutions in many domains (e.g. recommender systems or sentiment analysis). In this paper, we introduce Exponential Machines (ExM), a predictor that models all interactions of every order. The key idea is to represent an exponentially large tensor of parameters in a factorized format called Tensor Train (TT). The Tensor Train format regularizes the model and lets you control the number of underlying parameters. To train the model, we develop a stochastic Riemannian optimization procedure, which allows us to fit tensors with 2^160 entries. We show that the model achieves state-of-the-art performance on synthetic data with high-order interactions and that it works on par with high-order factorization machines on a recommender system dataset MovieLens 100K.


The Human Factor In An AI Future

#artificialintelligence

As artificial intelligence becomes more sophisticated and its ability to perform human tasks accelerates exponentially, we're finally seeing some attempts to wrestle with what that means, not just for business, but for humanity as a whole. From the first stone ax to the printing press to the latest ERP solution, technology that reduces or even eliminates physical and mental effort is as old as the human race itself. However, that doesn't make each step forward any less uncomfortable for the people whose work is directly affected โ€“ and the rise of AI is qualitatively different from past developments. Until now, we developed technology to handle specific routine tasks. A human needed to break down complex processes into their component tasks, determine how to automate each of those tasks, and finally create and refine the automation process.


Reach Capital Edtech Outlook 2017

#artificialintelligence

We invest in early-stage companies that develop tools, applications, content, and services to improve education opportunities for all children. 2 2017 Reach Capital. About Reach Capital 3. 3 At Reach, we believe in... Learning that... Technology that... Have a sense of purpose and actively pursue it Are empathetic, caring, and connected Work together to solve problems and improve the world Enables and respects a person's agency and voice Exposes one to broad perspectives, places, and challenges Enables meaningful human interaction Minimizes boundaries and deepens connections between people Enhances and scales effective practices Increases access to quality education Communities where people... 2017 Reach Capital. Today's students are mobile and always connected Photo sources: Express Newspapers 2015, Mr. Martin's Web Site, MacStories 2017, Independent Digital News & Media 2017 6. 6 2017 Reach Capital. Then Now 67%of millennials agree they can find a YouTube video on anything they want to learn Learning is now bite-sized, on-demand, and accessible anywhere Think with Google Photo sources: Amazon, Buzzfeed 7. a K-12 schools are making headway 8. 8 2017 Reach Capital. PC Revolution Begins: first computers in school 1:5 Computer:Student 2:3 Computer/Tablet:Student 1977 2000 2016 NCES Schools are moving rapidly to one device per child Photo sources: Computer History Museum, Ben Schumin, Google 9. 9 2017 Reach Capital.


From software engineering to machine learning

@machinelearnbot

I'd like to get into machine learning โ€ฆ This is something I hear often, and with good reason. Machine Learning has risen as one of the hottest fields in Computer Science and the software industry. For companies it's appealing because it serves as a tool to leverage the large volumes of data available nowadays to turn it into business value. And yet I find that many engineers don't go past the "wanting" state. I was in this state myself for a while.


The Best Data Science Books Of All-Time -

#artificialintelligence

You'll start with an introduction to Spark and its ecosystem, and then dive into patterns that apply common techniques--including classification, clustering, collaborative filtering, and anomaly detection--to fields such as genomics, security, and finance. If you have an entry-level understanding of machine learning and statistics, and you program in Java, Python, or Scala, you'll find the book's patterns useful for working on your own data applications."


Learning Random Fourier Features by Hybrid Constrained Optimization

arXiv.org Machine Learning

The kernel embedding algorithm is an important component for adapting kernel methods to large datasets. Since the algorithm consumes a major computation cost in the testing phase, we propose a novel teacher-learner framework of learning computation-efficient kernel embeddings from specific data. In the framework, the high-precision embeddings (teacher) transfer the data information to the computation-efficient kernel embeddings (learner). We jointly select informative embedding functions and pursue an orthogonal transformation between two embeddings. We propose a novel approach of constrained variational expectation maximization (CVEM), where the alternate direction method of multiplier (ADMM) is applied over a nonconvex domain in the maximization step. We also propose two specific formulations based on the prevalent Random Fourier Feature (RFF), the masked and blocked version of Computation-Efficient RFF (CERF), by imposing a random binary mask or a block structure on the transformation matrix. By empirical studies of several applications on different real-world datasets, we demonstrate that the CERF significantly improves the performance of kernel methods upon the RFF, under certain arithmetic operation requirements, and suitable for structured matrix multiplication in Fastfood type algorithms.


Compressive Statistical Learning with Random Feature Moments

arXiv.org Machine Learning

Large-scale machine learning faces a number of fundamental computational challenges, triggered both by the high dimensionality of modern data and the increasing availability of very large training collections. Besides the need to cope with high-dimensional features extracted from images, volumetric data, etc., a key challenge is to develop techniques able to fully leverage the information content and learning opportunities opened by large training collections of millions to billions or more items, with controlled computational resources. Such training volumes can severely challenge traditional statistical learning paradigms based on batch empirical risk minimization.


Scaling Limit: Exact and Tractable Analysis of Online Learning Algorithms with Applications to Regularized Regression and PCA

arXiv.org Machine Learning

We present a framework for analyzing the exact dynamics of a class of online learning algorithms in the high-dimensional scaling limit. Our results are applied to two concrete examples: online regularized linear regression and principal component analysis. As the ambient dimension tends to infinity, and with proper time scaling, we show that the time-varying joint empirical measures of the target feature vector and its estimates provided by the algorithms will converge weakly to a deterministic measured-valued process that can be characterized as the unique solution of a nonlinear PDE. Numerical solutions of this PDE can be efficiently obtained. These solutions lead to precise predictions of the performance of the algorithms, as many practical performance metrics are linear functionals of the joint empirical measures. In addition to characterizing the dynamic performance of online learning algorithms, our asymptotic analysis also provides useful insights. In particular, in the high-dimensional limit, and due to exchangeability, the original coupled dynamics associated with the algorithms will be asymptotically "decoupled", with each coordinate independently solving a 1-D effective minimization problem via stochastic gradient descent. Exploiting this insight for nonconvex optimization problems may prove an interesting line of future research.


The first data science course with a job guarantee just got even better

@machinelearnbot

A leading provider of data science education, Springboard was just named one of the best data science bootcamps in the world by SwitchUp for the second year in a row! Springboard recently overhauled the course to give students an even better learning experience via their online, mentor-led curriculum. They took feedback from students, alumni, and mentors, and combined it with deep industry research to make their courses better--here's how: The curriculum now includes cutting edge teachings in deep learning and machine learning. Dig deep into artificial intelligence with new course modules, and learn one of today's most in-demand skills. They partnered with leaders at Datacamp--experts in teaching R and Python--to update the rest of the curriculum too.


An artificial intelligence designed for the end of human life is already among us

#artificialintelligence

Chatbots are used for a variety of tasks: ordering pizza, getting product suggestions via Facebook Messenger and receiving online customer support. But can they cope with death? A three-year clinical study with financial backing of more than $1 million from the National Institutes of Health is exploring whether a chatbot can help terminally ill, geriatric patients with their end-of-life care. Over the next three years, Northeastern University professor Timothy Bickmore and Boston Medical Center doctor Michael Paasche-Orlow will distribute Microsoft Surface tablets preloaded with a chatbot to about 360 patients who have been told they have less than a year to live. Designed in consultation with experts from Boston Medical Center and programmed by Bickmore and other Northeastern University researchers, the chatbot -- which takes the form of a middle-age female digital character -- is preloaded with a number of capabilities.