Smarker

Run CNTK Faster R-CNN on Your Own Images with Ubuntu 16.04 and CUDA 8.0

We will be referring to the tutorial at Microsoft CNTK Docs.

📹 Download the cntk-setup video or view a slightly lower quality version here.

Requirements

• Ubuntu 16.04
• CNTK 2.2 (GPU) docker image - This image will be ~9 GB, so make sure you have at least that, plus space for your images. - in progress
• Standard NC6 (6 vcpus, 56 GB memory) gpu on Azure (or CPU)
• Docker

Smarker

List all azure subscriptions

az account list

Switch to a subscription

az account set -s "subscription name"

Show current subscription you are in

Smarker

Norway

June 11-12

Boston BOS -> Paris CDG 11:30 PM -> 12:10 PM

June 12

18:25 Bergen -> 19:05 Stavanger

Smarker

Object Detection

Class Imbalance Problem

total # positive classes <<< total # negative classes

example: identifying fradulent claims

There may not be many fradulent claims, so the classifier will tend to classify fraudulent claims as genuine.

Smarker

Fluent Python

Dunder Methods

representation	methods
string/bytes representation	__repr__, __str__, __format__, __bytes__
conversion to number	__abs__, __bool__, __complex__, __int__, __float__, __hash__, __index__
emulating collections	__len__, __getitem__, __setitem__, __delitem__, __contains__
iteration	__iter__, __reversed__, __next__

Smarker

Pandas

Select DataFrame rows between two dates

1. Set date column as a DatetimeIndex
2. Filter by df[start_date : end_date]

Example: Filter taxi data by a 24 hour time window

1. Set date column tpep_pickup_datetime as DatetimeIndex

Smarker

Stable Tensor Neural Networks for Rapid Deep Learning

Paper source

Summary

• t-NN framework - a NN framework with multidimensional tensor data based on the t-product (multiply 2 tensors with circulant convolution)

Pros of using t-NNs

• quicker learning because of reduced parameter space
• improved generalizability of stable t-NNs

Smarker

Discovering the Fourier Transform: A Tutorial on Circulant Matrices, Circular Convolution, and the DFT

• Paper source
• video

Summary

• Discrete Fourier Transform (DFT) arises naturally out of analysis of circulant matrices
• DFT can be derived as the change of basis that simultaneously diagonalizes all circulant matrices

Smarker

VSB Power Line Fault Detection

• competition
• paper

Research Papers

• A Complex Classification Approach of Partial Discharges from Covered Conductors in Real Environment

Selecting Features

| Feature | Importance |

Smarker

#!/bin/bash

set -euo pipefail

IPYNB_FILE_PATHS=`git diff --staged --name-only | awk "/.ipynb/"`
PROJECT_ROOT_PATH=`git rev-parse --show-toplevel`

function get_script_extension() {
    file_path=$1
    echo $(cat $file_path | jq -r '.metadata.file_extension')