Deep Learning
Machine Learning Algorithms: Which One to Choose for Your Problem
Supervised learning is the task of inferring a function from labeled training data. By fitting to the labeled training set, we want to find the most optimal model parameters to predict unknown labels on other objects (test set). If the label is a real number, we call the task regression. If the label is from the limited number of values, where these values are unordered, then it's classification. In unsupervised learning we have less information about objects, in particular, the train set is unlabeled.
Chris Nicholson traveled a meandering path from Big Sky Country to CEO of start-up Skymind
Chris Nicholson, 42, is chief executive of Skymind, an artificial intelligence company in San Francisco that's vying with dozens of other start-ups to emerge as a major player in the nascent AI economy. Google, Amazon, Apple, Facebook and other tech giants now dominate "deep learning" AI, powering such things as voice-activated personal assistants, image recognition and driverless cars. Skymind has built open-source programs and assembled a team of experts to help organizations smaller than Google or Apple build their own deep-learning programs. Thousands of start-up wannabees would love to have Skymind's funding -- $6.3 million from venture capitalist hotshots such as Ray Lane's GreatPoint Ventures and China's Tencent Holdings Ltd. "Montana is a beautiful place, with a lot of wonderful people," the Montana native said. "But if there's one adjective you'd use to describe it, it's remote. For anybody born curious in Montana, the first task is'how to expose myself to the world.'"
Beginner's guide to Reinforcement Learning & its implementation in Python
One of the most fundamental question for scientists across the globe has been – "How to learn a new skill?". The desire to understand the answer is obvious – if we can understand this, we can enable human species to do things we might not have thought before. Alternately, we can train machines to do more "human" tasks and create true artificial intelligence. While we don't have a complete answer to the above question yet, there are a few things which are clear. Irrespective of the skill, we first learn by interacting with the environment.
DeepMind's Mustafa Suleyman: In 2018, AI will gain a moral compass
Humanity faces a wide range of challenges that are characterised by extreme complexity, from climate change to feeding and providing healthcare for an ever-expanding global population. Left unchecked, these phenomena have the potential to cause devastation on a previously untold scale. Fortunately, developments in AI could play an innovative role in helping us address these problems. At the same time, the successful integration of AI technologies into our social and economic world creates its own challenges. They could either help overcome economic inequality or they could worsen it if the benefits are not distributed widely.
Detecting Diseases in Chest X-ray Using Deep Learning
Chest Xrays are used to diagnose multiple diseases. From pneumonia to lung nodules multiple diseases can be diagnosed using just this one modality using Deep Learning. Chest Xray 14 dataset was recently released by NIH which has over 90000 Xray plates tagged with 14 diseases or being normal. This has started a race to make Computer Aided Diagnosis (CAD) Systems which can learn discerning thoracic diseases from Xrays. If you happen to be following the development following the release of the dataset, you would have noticed research coming out from various research labs on this dataset.
Google has created an AI that sounds indistinguishable from humans
The system is Google's second official generation of the technology, which consists of two deep neural networks. The first network translates the text into a spectrogram (pdf), a visual way to represent audio frequencies over time. That spectrogram is then fed into WaveNet, a system from Alphabet's AI research lab DeepMind, which reads the chart and generates the corresponding audio elements accordingly.
What deep learning really means
Perhaps the most positive technical theme of 2016 was the long-delayed triumph of artificial intelligence, machine learning, and in particular deep learning. In this article we'll discuss what that means and how you might make use of deep learning yourself. Perhaps you noticed in the fall of 2016 that Google Translate suddenly went from producing, on the average, word salad with a vague connection to the original language to emitting polished, coherent sentences more often than not -- at least for supported language pairs, such as English-French, English-Chinese, and English-Japanese. That dramatic improvement was the result of a nine-month concerted effort by the Google Brain and Google Translate teams to revamp Translate from using its old phrase-based statistical machine translation algorithms to working with a neural network trained with deep learning and word embeddings employing Google's TensorFlow framework. The researchers working on the conversion had access to a huge corpus of translations from which to train their networks, but they soon discovered that they needed thousands of GPUs for training and would have to create a new kind of chip, a Tensor Processing Unit (TPU), to run Translate on their trained neural networks at scale.
AI and Deep Learning in 2017 – A Year in Review
The year is coming to an end. I did not write nearly as much as I had planned to. But I'm hoping to change that next year, with more tutorials around Reinforcement Learning, Evolution, and Bayesian Methods coming to WildML! And what better way to start than with a summary of all the amazing things that happened in 2017? Looking back through my Twitter history and the WildML newsletter, the following topics repeatedly came up.
Building AI systems that work is still hard
Martin Welker is the chief executive of Axonic. Even with the support of AI frameworks like TensorFlow or OpenAI, artificial intelligence still requires deep knowledge and understanding compared to a mainstream web developer. If you have built a working prototype, you are probably the smartest guy in the room. Congratulations, you are a member of a very exclusive club. With Kaggle, you can even earn decent money by solving real-world projects.