Africa
Modeling outcomes of soccer matches
Tsokos, Alkeos, Narayanan, Santhosh, Kosmidis, Ioannis, Baio, Gianluca, Cucuringu, Mihai, Whitaker, Gavin, Király, Franz J.
We compare various extensions of the Bradley-Terry model and a hierarchical Poisson log-linear model in terms of their performance in predicting the outcome of soccer matches (win, draw, or loss). The parameters of the Bradley-Terry extensions are estimated by maximizing the log-likelihood, or an appropriately penalized version of it, while the posterior densities of the parameters of the hierarchical Poisson log-linear model are approximated using integrated nested Laplace approximations. The prediction performance of the various modeling approaches is assessed using a novel, context-specific framework for temporal validation that is found to deliver accurate estimates of the test error. The direct modeling of outcomes via the various Bradley-Terry extensions and the modeling of match scores using the hierarchical Poisson log-linear model demonstrate similar behavior in terms of predictive performance.
I For One, Welcome Our 3D Printer Overlords
I can't run a starship with twenty crew. KIRK: And what am I supposed to do? WESLEY: You've got a great job, Jim. All you have to do is sit back and let the machine do the work. One clear message from the presidential election is that the dream of good factory jobs still resonates in America's rust belt. Despite the push for students to pursue STEM careers or move into the service sector, Americans still want to make stuff.
4 Latest Key Considerations Involved in Chatbot Development for 2018 - DZone AI
A chatbot is an artificial intelligence or a computer program that conducts a conversation through textual or auditory methods. This kind of program is frequently designed to persuasively pretend how a person would behave like a conversational partner, thus passing the Turing test. They are normally utilized in dialog systems for different practical objectives like information acquisition or customer service. Present circumstances show that it is mandatory for you to invest in technology with a vision and with a purpose. It encompasses augmenting your website or app with a chatbot tool or creating a separate chatbot to serve your customers.
Crop-counting robot
"There's a real need to accelerate breeding to meet global food demand," said principal investigator Girish Chowdhary, an assistant professor of field robotics in the Department of Agricultural and Biological Engineering and the Coordinated Science Lab at Illinois. "In Africa, the population will more than double by 2050, but today the yields are only a quarter of their potential." Crop breeders run massive experiments comparing thousands of different cultivars, or varieties, of crops over hundreds of acres and measure key traits, like plant emergence or height, by hand. The task is expensive, time-consuming, inaccurate, and ultimately inadequate -- a team can only manually measure a fraction of plants in a field. "The lack of automation for measuring plant traits is a bottleneck to progress," said first author Erkan Kayacan, now a postdoctoral researcher at the Massachusetts Institute of Technology.
Guest Post: How Artificial Intelligence Is Changing The Face Of Fraud
The digital world is full of insecurities like identity fraud, cloning and many other vulnerabilities causing hurdle in achieving a secure environment. According to a study conducted by Javelin, it is recognised that 16.7 million people face identity fraud in the year 2017 and this figure is 8% above than a year before. The figure of data theft, illegal transactions and many other fraudulent larcenies increased rapidly in the past few years. Hackers with their new moves always try to breach in others system. Artificial Intelligence with its basic approaches of the machine and deep learning creates an accurate and efficient process solution to eliminate obstacles involved in the organisational processes.
ThetaRay raises $30 million to grow its AI-powered cybersecurity business
ThetaRay, a big data analytics company based in Hod HaSharon, Israel, today announced that it raised more than $30 million in a funding round led by Jerusalem Venture Partners (JVP), GE, Bank Hapoalim, OurCrowd, SVB Investments, and others. That puts its fundraising total to date at about $60 million. "In this era when criminal activity and money laundering are increasing and becoming more sophisticated and also regulation is on the rise, there is a greater demand for our solutions," Mark Gazit, CEO of ThetaRay, said in a statement. "As the amount of digital information grows, you just can't protect it without artificial intelligence systems. ThetaRay offers the most advanced and mature solutions to detect threats before they happen."
OCTen: Online Compression-based Tensor Decomposition
Gujral, Ekta, Pasricha, Ravdeep, Yang, Tianxiong, Papalexakis, Evangelos E.
Tensor decompositions are powerful tools for large data analytics as they jointly model multiple aspects of data into one framework and enable the discovery of the latent structures and higher-order correlations within the data. One of the most widely studied and used decompositions, especially in data mining and machine learning, is the Canonical Polyadic or CP decomposition. However, today's datasets are not static and these datasets often dynamically growing and changing with time. To operate on such large data, we present OCTen the first ever compression-based online parallel implementation for the CP decomposition. We conduct an extensive empirical analysis of the algorithms in terms of fitness, memory used and CPU time, and in order to demonstrate the compression and scalability of the method, we apply OCTen to big tensor data. Indicatively, OCTen performs on-par or better than state-of-the-art online and online methods in terms of decomposition accuracy and efficiency, while saving up to 40-200 % memory space.
Connecting Weighted Automata and Recurrent Neural Networks through Spectral Learning
Rabusseau, Guillaume, Li, Tianyu, Precup, Doina
In this paper, we unravel a fundamental connection between weighted finite automata (WFAs) and second-order recurrent neural networks (2-RNNs): in the case of sequences of discrete symbols, WFAs and 2-RNNs with linear activation functions are expressively equivalent. Motivated by this result, we build upon a recent extension of the spectral learning algorithm to vector-valued WFAs and propose the first provable learning algorithm for linear 2-RNNs defined over sequences of continuous input vectors. This algorithm relies on estimating low rank sub-blocks of the so-called Hankel tensor, from which the parameters of a linear 2-RNN can be provably recovered. The performances of the proposed method are assessed in a simulation study.
Breast Cancer Diagnosis via Classification Algorithms
In this paper, we analyze the Wisconsin Diagnostic Breast Cancer Data using Machine Learning classification techniques, such as the SVM, Bayesian Logistic Regression (Variational Approximation), and K-Nearest-Neighbors. We describe each model, and compare their performance through different measures. We conclude that SVM has the best performance among all other classifiers, while it competes closely with the Bayesian Logistic Regression that is ranked second best method for this dataset.
What Data Science Actually Means To Manufacturing
Sooner or later the data science jargon and marketing hype is going to subside, and manufacturing companies, among many other sectors, are going to find themselves sitting with broken promises. It is therefore important that these organizations understand clearly how they stand to benefit from and be empowered by data science and the challenges thereof. And with this in mind, In this article, I discuss the opportunities, challenges and potential sources of data associated with data science for manufacturing companies. If there is one sector that is set to benefit immensely from Big Data, it is manufacturing. Every individual and company are influenced by manufacturing one way or another, and the industry is sitting on vast amounts of data.