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G. Hussain Chinoy
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G. Hussain Chinoy

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Some fairy tales may be 6000 years old

When it comes to the origin of Western fairy tales, the 19th century Brothers Grimm get a lot of the credit. Few scholars believe the Grimms were actually responsible for creating the tales, but academics probably didn’t realize how old many of these stories really are. A new study, which treats these fables like an evolving species, finds that some may have originated as long as 6000 years ago.

This approach allowed the researchers to trace certain tales, such as The Smith and the Devil, which tells the story of a blacksmith who makes a deal with the devil in exchange for unmatched smithing prowess, back thousands of years—all the way to the Proto-Indo-European people . If the analysis is correct, it would mean the oldest fairy tales still in circulation today are between 2500 and 6000 years old. Other stories seem to be much younger, appearing for the first time in more modern branches of the language tree.
Study traces history of some of our favorite folk stories
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OpenAI Gym is a toolkit for developing and comparing reinforcement learning algorithms from OpenAI, the non-profit AI research company that strives to develop open-source "friendly" AI -- AI that will benefit humanity and not cause harm.

"OpenAI Gym consists of a growing suite of environments (from simulated robots to Atari games), and a site for comparing and reproducing results. OpenAI Gym is compatible with algorithms written in any framework, such as Tensorflow and Theano. The environments are written in Python, but we'll soon make them easy to use from any language."
OpenAI is a non-profit artificial intelligence research company.
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The parts of the human genome that could explain the differences in how humans experience happiness have been isolated. In a study of 298,000 people, "the researchers found three genetic variants for happiness, two variants that can account for differences in symptoms of depression, and eleven locations on the human genome that could account for varying degrees of neuroticism. The genetic variants for happiness are mainly expressed in the central nervous system and the adrenal glands and pancreatic system."
For the first time in history, researchers have isolated the parts of the human genome that could explain the differences in how humans experience happiness. These are the findings of a large-scale international study in over 298,000 people, conducted by VU Amsterdam professors Meike Bartels (Genetics and Wellbeing) and Philipp Koellinger (Genoeconomics). The researchers found three genetic variants for happiness, two variants that can account fo...
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Introduction to debugging neural networks. Tips for dealing with NaNs, what to do when your neural net isn't learning anything, and model selection (referred to here as hyperparameter tuning).
Introduction to debugging neural networks. April 7, 2016. The following advice is targeted at beginners to neural networks, and is based on my experience giving advice to neural net newcomers in industry and at Stanford. Neural nets are fundamentally harder to debug than most programs, ...
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A new, decentralized planning algorithm for teams of robots that factors in not only stationary obstacles, but moving obstacles, as well, has been developed. "The algorithm also requires significantly less communications bandwidth than existing decentralized algorithms, but preserves strong mathematical guarantees that the robots will avoid collisions."

Each robot, on the basis of its own observations, maps out an obstacle-free region in its immediate environment and passes that map only to its nearest neighbors. When a robot receives a map from a neighbor, it calculates the intersection of that map with its own and passes that on. This keeps down both the size of the robots' communications -- describing the intersection of 100 maps requires no more data than describing the intersection of two -- and their number, because each robot communicates only with its neighbors. Nonetheless, each robot ends up with a map that reflects all of the obstacles detected by all the team members."
Control algorithm for teams of robots factors in moving obstacles.
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Machine learning is being used to identify cancer cases in pathology reports that are free text. "The researchers sampled 7,000 free-text pathology reports from over 30 hospitals that participate in the Indiana Health Information Exchange and used open source tools, classification algorithms, and varying feature selection approaches to predict if a report was positive or negative for cancer. The results indicated that a fully automated review yielded results similar or better than those of trained human reviewers, saving both time and money."
INDIANAPOLIS -- Machine learning has come of age in public health reporting according to researchers from the Regenstrief Institute and Indiana University School of Informatics and Computing at Indiana University-Purdue University Indianapolis. They have found that existing algorithms and open source machine learning tools were as good as, or better than, human reviewers in detecting cancer cases using data from free-text pathology reports. The c...
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Apparently IBM Watson is very good at looking at images and spotting cancer too 
https://www.technologyreview.com/s/540141/why-ibm-just-bought-billions-of-medical-images-for-watson-to-look-at/
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We are excited to introduce Docker Engine 1.11, our first release built on runC and containerd. This is the first OCI-compliant runtime and demonstrates the progress since donating our industr…
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Exercise genes? Study suggests certain people with depression may benefit more from exercise than others

Call it personalized medicine for depression—but the prescription in this case is exercise, which University of Florida Health researchers have found helps people with certain genetic traits. A UF study has found that specific genetic markers that put people at risk for depression also predict who might benefit from exercise, according to a study published recently in The Journal of Frailty & Aging. The researchers found that men who were carriers of two specific genes had the most significant response to exercise. The results suggest physical activity as part of a treatment plan—exercise as moderate as walking—could help the carriers of these genes.

link: http://medicalxpress.com/news/2016-04-genes-people-depression-benefit.html
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The best interactive guide to the Fourier Transform I've ever seen. 
The Fourier Transform is one of deepest insights ever made. Unfortunately, the meaning is buried within dense equations: $$X_k = \sum_{n=0}^{N-1} x_n \cdot e^{-i 2 \pi k n / N}$$ $$x_n = \frac{1}{N} \sum_{k=0}^{N-1} X_k \cdot e^{i 2 \pi k n / N}$$ Yikes. Rather than jumping into the symbols, let's experience the key idea firsthand. Here's a
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TensorFlow Playground - Don’t Worry, You Can’t Break It. We Promise.

Have fun with #TensorFlow Playground, an open source visualization of how neural networks learn and optimize. Created by Google Brain team members +Daniel Smilkov and +Shan Carter, TensorFlow Playground is a tool we hope can make neural networks a little more accessible.
Tinker with a real neural network right here in your browser.
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Machine learning is being used to identify cancer cases in pathology reports that are free text. "The researchers sampled 7,000 free-text pathology reports from over 30 hospitals that participate in the Indiana Health Information Exchange and used open source tools, classification algorithms, and varying feature selection approaches to predict if a report was positive or negative for cancer. The results indicated that a fully automated review yielded results similar or better than those of trained human reviewers, saving both time and money."
INDIANAPOLIS -- Machine learning has come of age in public health reporting according to researchers from the Regenstrief Institute and Indiana University School of Informatics and Computing at Indiana University-Purdue University Indianapolis. They have found that existing algorithms and open source machine learning tools were as good as, or better than, human reviewers in detecting cancer cases using data from free-text pathology reports. The c...
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