Saturday, March 23, 2019
Machine Learning vs. Optimization
Although it may be an odd comparison, sometimes this can be confusing for approaching problems. On
one hand, mathematical optimization is used in machine learning
during model training, when we are trying to minimize the cost of errors
between our model and our data points. On the other hand, machine learning can be used to solve optimization problems. For many actual
problems, the data cannot be known accurately for a variety of reasons. The first reason is due to simple measurement error. The second and more
fundamental reason is that some data represent information about the
future (e.g., product demand or price for a future time period) and
simply cannot be known with certainty. The third reason is when obtaining the data is computationally intensive, even close to impossible; for instance, forecasting
travel times between every two locations in a city. In these cases, we can use the power of machine learning to do the forecasting job for us. Or Robust optimization
techniques can be used when the parameters are known only within
certain bounds; the goal is to find a solution that is feasible for all
data and optimal in some senses. Stochastic programming
models take advantage of the fact that probability distributions
governing the data are known or can be estimated; the goal is to find
some policy that is feasible for all (or almost all) the possible data
instances and optimize the expected performance of the model.
Use Azure as your Jupyter notebook Server
Make sure to follow the steps from this post to setup your Azure Virtual Machine:
http://www.etedal.net/2019/03/setting-up-azure-nc6-for-kaggle.html
Setup Jupyter remote ssh connection:
On Azure: jupyter notebook --no-browser --port=2001
On your machine: ssh -N -f -L localhost:2002:localhost:2001 remoteuser@remotehost
(Optional if you use mosh instead): mosh -ssh "
ssh -N -f -L localhost:2002:localhost:2001" remoteuser@remotehostOn your browser: localhost:2002
Wednesday, March 13, 2019
Windows Subsystem for Debian
If you're frustrated using Windows and there is no way around not using it use the following:
https://docs.microsoft.com/en-us/windows/wsl/install-win10
Open PowerShell as Administrator:
Install Debian:
https://www.microsoft.com/en-ca/p/debian/9msvkqc78pk6?rtc=1&activetab=pivot:overviewtab
sudo apt update
https://docs.microsoft.com/en-us/windows/wsl/install-win10
Open PowerShell as Administrator:
Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
Install Debian:
https://www.microsoft.com/en-ca/p/debian/9msvkqc78pk6?rtc=1&activetab=pivot:overviewtab
sudo apt update
Monday, March 11, 2019
Sunday, March 10, 2019
Setting up Azure NC6 for Kaggle Competitions
I have chosen NC6 and Ubuntu 18.04
Install the following using Lambda Stack:
Deep Learning frameworks: TensorFlow, Keras, PyTorch, Caffe, Caffe 2
GPU software: CUDA, cuDNN, NVIDIA drivers
Development tools: git, tmux, screen, vim, emacs, htop, valgrind, build-essential
Using Kaggle's beta API, you can interact with Competitions and Datasets to download data, make submissions, and more via the command line.
Install the following using Lambda Stack:
Deep Learning frameworks: TensorFlow, Keras, PyTorch, Caffe, Caffe 2
GPU software: CUDA, cuDNN, NVIDIA drivers
Development tools: git, tmux, screen, vim, emacs, htop, valgrind, build-essential
Using Kaggle's beta API, you can interact with Competitions and Datasets to download data, make submissions, and more via the command line.
Thursday, March 7, 2019
Google Test (gtest) on Debian
Here is the link to the project source
https://github.com/google/googletest
Here is the code for installing Google Test (gtest)
Here is the code for installing Google Test (gtest)
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