News in artificial intelligence and machine learning you should know about

Revue
 
From 18th March thru 12th April. Referred by a friend? Sign up here. Want to share? Give it a tweet. 
 
April 12 - Issue #10

Nathan Benaich

An analytical digest of artificial intelligence and machine learning news from the technology industry, research lab and venture capital market.

From 18th March thru 12th April. Referred by a friend? Sign up here. Want to share? Give it a tweet
*I recorded a two-part podcast discussion on AI with Nick Moran @ The Full Ratchet. Check it out Part 1 here and let me know what you think! Loads of tough questions :) Part 2 to come. 

Technology news, trends and opinions
Health-related AI 🔬💊
Autonomous vehicles 🏁🚗
Hardware and developer tools 
Tech concepts, explained
Research, development and resources
Deep3D: Fully Automatic 2D-to-3D VideoConversion with Deep Convolutional Neural Networks, University of Washington, code here. 3D movies are growing in popularity (remember Avatar in 2008?), but they’re expensive to produce using either 3D cameras or 2D video manually converted to 3D. To automatically convert 2D to 3D, one needs to infer a depth map for each pixel in an image (i.e. how far each pixel is from the camera) such that an image for the opposing eye can be produced. Existing automated neural network-based pipelines require image-depth pairs for training, which are hard to procure. Here, the authors use stereo-frame pairs that exist in already-produced 3D movies to train a deep convolutional neural network to predict the novel view (right eye’s view) from the given view (left eye’s view) using an internally estimated soft (probabilistic) disparity map.
“Why Should I Trust You?” Explaining the Predictions of Any Classifier, University of Washington. Code here. A key hurdle to the mass adoption of machine learning models in fault intolerant commercial settings (e.g. finance, healthcare, security) is the ability to provide explanations as to why certain predictions were made. Many models, especially neural networks, are today functionally black boxes with trust in their performance relying on cross validation accuracy. The authors present a model-agnostic algorithm that presents textual or visual artifacts using interpretable representations of underlying data (not necessarily a model’s features) to provide the user with a qualitative understanding of what a given model is basing its classification predictions on. This is very nifty work. Further explanation here.
Dynamic Memory Networks for Visual and Textual Question Answering, MetaMind. A year ago, the MetaMind team published the dynamic memory network, a neural network architecture which processes input sequences and questions, forms episodic memories, and generates relevant answers. In this work, the team introduce a new input module to handle images instead of text, such that the network can now answer natural language questions from its understanding of features in the image. Specifically, the input module splits an image into small local regions and considers each region equivalent to a sentence in the input module for text.
The Curious Robot: Learning Visual Representations via Physical Interactions, Carnegie Mellon University. The task of learning visual representations in the real world with CNNs typically requires a large dataset of labeled image examples. This group instead explores whether a Baxter robotic arm can learn visual representations only by performing four physical interactions: push, poke, grasp and active vision. They show that by experiencing 130k of these interactions with household objects (e.g. cups, bowls, bottles) and using each data point for back-propagation through a CNN, the network can learn some generalised features that helps it classify household object images on ImageNet without having seen any labeled images before. 
Deep learning for chatbots, part 1 - Introduction. Given the excitement around chat interfaces and their ability to evolve user experiences for today’s generation of technophiles, here’s a piece that describes where we’re at technically, what’s possible and what will stay nearly impossible for at least a little while. This series will follow up with implementation details in upcoming posts. 
Venture capital financings and exits
34 investment rounds totalling $116m of announced value and 5 acquisitions, including:
  • x.ai, the (increasingly) automated NLP-based digital personal assistant for meeting scheduling, raised a $23m Series B round led by Two Sigma Ventures. Hats off to Dennis and the team for a great demonstration of how human-AI collaboration can tackle a clear workflow problem. Watch him present at this year’s Virtual Assistant Summit in SF by Re.Work.
  • Twiggle, the fairly quiet Tel Aviv-based startup working on an improved core technology stack focused on e-commerce search, announced a $12.5m Series A led by Naspers, the publicly traded South African internet and media group.
  • Kreditech, the German online lender underwriting loans using non-traditional data points, closed out the final $11m of its $103m Series C with an investment from the International Finance Corporation (a division of The World Bank). *Jose Garcia Moreno-Torres, Kreditech’s Chief Data Science Officer, is presenting at our second Playfair AI event on July 1st in London. 
  • Gauss Surgical, the maker of Triton, an FDA-cleared mobile vision system running on iPad that accurately estimates intra-operative hemoglobin and blood loss on sponges in real time, raised a $12.6m Series A led by Providence Ventures
  • Drive.ai, the stealth autonomous vehicle software company founded by Carol Reiley (who incidentally is also Andrew Ng’s partner - Stanford/Google/Baidu fame), raised a $12m Seed round from undisclosed investors
  • Salesforce acquired MetaMind, founded by Stanford PhD Richard Socher who was working on NLP and later vision, for an undisclosed sum (purportedly an acquihire). The business raised $8m from Khosla Ventures and Salesforce Founder/CEO Mark Benioff. Of note, Richard writes “[Salesforce will use MetaMind to] automate and personalize customer support, marketing automation, and [improve] many other business processes. We’ll extend Salesforce’s data science capabilities by embedding deep learning within the Salesforce platform.” Very exciting indeed. 

Anything else catch your eye? Just hit reply! I’m actively looking for entrepreneurs building companies that build/use AI to rethink the way we live and work. 
Did you enjoy this issue?
Thumbs up 1ae5a7bdfcd3220e2b376aa0c1607bc5edaba758e5dd83b482d03965219a220b Thumbs down e13779fa29e2935b47488fb8f82977fedcf689a0cc0cc3c19fa3c6bb14d1493b
Carefully curated by Nathan Benaich with Revue.
If you were forwarded this newsletter and you like it, you can subscribe here.
If you don't want these updates anymore, please unsubscribe here.