Technology


Classification with Neural Networks: Is it the Right Choice? - MissingLink

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The simplest form of RNN ("vanilla" RNN) is similar to a regular neural network, only it contains a loop that allows the model to carry forward results from previous neuron layers. The image below "unrolls" how the loop works. The network looks at a series of inputs over time, X0, X1, X2, until Xt. For example, this could be a sequence of words in a sentence. The neural network has one layer of neurons for each input (in our example, one layer for each word).


Most Common Neural Net PyTorch Mistakes - MissingLink.ai

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This post will go point by point to see how these mistakes can manifest in a PyTorch code sample. Andrej says we should overfit a single batch. I've wasted HOURS training on a giant dataset, just to find out it's only 50% accurate because of a minor bug. The results you'll get are a good guess for the optimal performance of your architecture when it perfectly memorizes the input. Maybe that optimal performance is zero, because an exception gets thrown mid-way through.


How Concerned Should You be About Predictor Collinearity? It Depends…

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This past Northern Hemisphere summer, I gave several talks (some in the Southern Hemisphere) in which one of the Q&A topics was the problem of collinearity between predictor variables (also known as multicollinearity). My stock response to a question on this topic was (and is) to reply with the clarifying question, "How many rows do you have to develop the model?" If the follow-up response was in the tens of thousands, my counter-response was "Don't worry about collinearity." In contrast, if the audience member's response was a few hundred rows or less, my response was "Very!" While these two different responses may seem contradictory, they actually are not.


Deep Learning for Big Data: Extracting Value from Data

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One of the byproducts of our digitally transformed world is the accumulation of large quantities of data. Online transactions, medical records, social media posts, emails, instant messages, and connected sensors are just a few examples of the kinds of data being captured and stored on a daily basis. Scientists and research organizations have been exploring how to leverage big data for artificially intelligent applications since the 1970s. Nonetheless, until fairly recently, the big data issues for enterprises remained how to store it cost effectively, how to retrieve it efficiently when needed, and how to protect it from unauthorized access. The growth of the cloud opened up a whole new realm of cost-effective data storage and retrieval solutions, but big data was still largely perceived by enterprises as a passive asset that did not contribute significantly to their bottom lines.



A I: The AI Times – The office workers teaching AI BetaKit

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The AI Times is a weekly newsletter covering the biggest AI, machine learning, big data, and automation news from around the globe. If you want to read A I before anyone else, make sure to subscribe using the form at the bottom of this page. The R&D Labs initiative will be part of the Fintech Station, an accelerator launched by Finance Montreal, and will also be part of the venture community hub, Espace CDPQ. For Sean, success revolves around ingraining these three facets into a company's culture. A team that can operate with focus, speed, and intensity is unstoppable – and it's one of the unique advantages startups have overall in the market.


The non-techie's guide to machine learning

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You find yourself at another startup meetup, leaning against the bar and sipping away at your drink. Tonight's the night, you think to yourself. Tonight, I get some networking done. And then you hear it. "…they're definitely the machine learning startup to watch."


Gentle Introduction to Models for Sequence Prediction with RNNs

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Sequence prediction is a problem that involves using historical sequence information to predict the next value or values in the sequence. The sequence may be symbols like letters in a sentence or real values like those in a time series of prices. Sequence prediction may be easiest to understand in the context of time series forecasting as the problem is already generally understood. In this post, you will discover the standard sequence prediction models that you can use to frame your own sequence prediction problems. Discover how to develop LSTMs such as stacked, bidirectional, CNN-LSTM, Encoder-Decoder seq2seq and more in my new book, with 14 step-by-step tutorials and full code.


A critique of pure learning and what artificial neural networks can learn from animal brains

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Not long after the invention of computers in the 1940s, expectations were high. Many believed that computers would soon achieve or surpass human-level intelligence. Herbert Simon, a pioneer of artificial intelligence (AI), famously predicted in 1965 that "machines will be capable, within twenty years, of doing any work a man can do"--to achieve general AI. Of course, these predictions turned out to be wildly off the mark. In the tech world today, optimism is high again.


Top Deep Learning Frameworks of 2019 and How Do They Compare

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From personalizing customer experience to automating processes, Deep Learning applications are offering smart solutions to businesses across industries, opening up a world of opportunities for them. Deep Learning algorithms use sophisticated structures, such as Convolutional Neural Networks, belief networks, or recurrent neural networks. Effective DL frameworks also help simplify the implementation of large and complex models like Convolutional Neural Networks. In this post, we present the top Deep Learning frameworks preferred by data scientists and Deep Learning experts across the globe. We have also included the major pros and cons of each framework, enabling you to choose the right one for your upcoming project.