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Wednesday 29 March 2017

Most original prize at The 2017 Deep Learning Hackathon

Although I have worked on several deep learning projects in the past, I still consider myself to be a newbie in deep learning because of all the new things that keep coming up and it is so hard to keep up with all that. So, I decided to take part in "The 2017 Deep Learning Hackathon" by Deepgram to work on something I have been wanting to do for a while now.

I built something called Medivh - prophet from Warcraft who has seen the future.  The idea was to build a tool for web developers to predict how users are going to see / use the site even before deploying. Basically, it generates heat maps on websites which show where the user might look at. Example:



I will write another post with all the technical details. Here is the sneak peak of how it was done.




Apart from building that, We got an opportunity to interact with people like Bryan Catanzaro - maker of CUDNN and VP at Nvidia,  Jiaji Huangform from Baidu, Jonathan Hseu from Google Brain etc.

We also got to interact with people from Deepgram and their caffe like framework called Kur which seems pretty good. I think I'll write a review about Kur after playing around with it for some more time.

Also this:

This is me presenting before the results.
For Medivh, I won the "Most original prize" -  Nvidia Titan X pascal. What a beauty!


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Thursday 9 March 2017

Introducing mailing in crontab-ui

Now crontab-ui has option to send mails after execution of jobs along with output and errors attached as text files. This internally uses nodemailer and all the options available through nodemailer are available here.

Defaults


To change the default transporter and mail config you can modify config/mailconfig.js.
var transporterStr = 'smtps://user%40gmail.com:password@smtp.gmail.com';

var mailOptions = {
    from: '"Fred Foo 👥" <foo@blurdybloop.com>', // sender address
    to: 'bar@blurdybloop.com, baz@blurdybloop.com', // list of receivers
    subject: 'Job Test#21 Executed ✔', // Subject line
    text: 'Test#21 results attached 🐴', // plaintext body
    html: '<b>Test#21 🐴</b> results attached' // html body
};

Troubleshooting


Make sure that you have node at /usr/local/bin/node else you need to create a softlink like this
ln -s [location of node] /usr/local/bin/node

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Setting up crontab-ui on raspberry pi

In this tutorial I will show you how to setup crontab-ui on raspberry pi.

Step 1

Find your architecture 
uname -a
Linux raspberrypi 4.4.50-v7+ #970 SMP Mon Feb 20 19:18:29 GMT 2017 armv7l GNU/Linux
Note that it is ARMv7. Download and extract latest node. 
wget https://nodejs.org/dist/v7.7.2/node-v7.7.2-linux-armv7l.tar.xz
tar xz node-v7.7.2-linux-armv7l.tar.xz
sudo mv node-v7.7.2-linux-armv7l /opt/node

Step 2

Remove old nodejs if it is already installed and add the latest node to the $PATH 
sudo apt-get purge nodejs
echo 'export PATH=$PATH:/opt/node/bin' > ~/.bashrc
source ~/.bashrc

Step 3

Install crontab-ui and pm2. And start crontab-ui. 
npm install -g crontab-ui
npm install -g pm2
pm2 start crontab-ui
Now your crontab-ui must be running. Visit http://localhost:8000 on your browser to see if it is working.

Step 4 (Optional)

In order to be able access crontab-ui from outside, you have to forward the port 8000. Install nginx and configure. 
sudo apt-get install nginx
sudo vi /etc/nginx/sites-available/default
Paste the following lines in the file: 
server {
    listen 8001;

    server_name localhost;

    location / {
        proxy_pass http://localhost:8000;
    }
}
Restart nginx 
sudo service nginx restart
Now, crontab-ui must be accessible from outside through port 8001. So, to access crontab-ui, go to 
<ip address of pi>:8001
You can also setup http authentication by following this.
Thanks!
Fork me on Github

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