brunosan

This is a list inspired by some of our current or potential lines of work at the World Bank Innovation Labs. The “Innovations in Big Data Analytics” program helps to strengthen the World Bank capabilities to effectively use big data in its operational and strategic work.

We are always looking for great Data Scientists. If you can solve any of these [using open software], you'll be heads down helping us from day one. Email us to brunosanchez@worldbank.org

(This list is updated frequently).

1. Nightlights from Satellite

We are building an open stack to process nightly data from satellite and query light output from all known villages. Currently we are doing 20 years of nightly data for 600,000 villages in India.

kgjenkins

mojodna

sudo yum -y update
sudo yum-config-manager --enable epel
sudo yum -y install make automake gcc gcc-c++ libcurl-devel proj-devel geos-devel
cd /tmp
curl -L http://download.osgeo.org/gdal/2.0.0/gdal-2.0.0.tar.gz | tar zxf -
cd gdal-2.0.0/
./configure --prefix=/usr/local --without-python
make -j4
sudo make install

victorkristof

def datenum_to_datetime(datenum):
    """
    Convert Matlab datenum into Python datetime.

    :param datenum: Date in datenum format
    :return:        Datetime object corresponding to datenum.
    """
    days = datenum % 1
    hours = days % 1 * 24
    minutes = hours % 1 * 60

iandees

I've been interested in computer vision for a long time, but I haven't had any free time to make any progress until this holiday season. Over Christmas and the New Years I experimented with various methodologies in OpenCV to detect road signs and other objects of interest to OpenStreetMap. After some failed experiments with thresholding and feature detection, the excellent /r/computervision suggested using the dlib C++ module because it has more consistently-good documentation and the pre-built tools are faster.

After a day or two figuring out how to compile the examples, I finally made some progress:

Compiling dlib C++ on a Mac with Homebrew

1. Clone dlib from Github to your local machine:

potench

OSX Arcanist Installation Guide

Note, please replace "WWW/tools" with where ever you store your web tools.

$ mkdir ~/WWW/tools
$ cd ~/WWW/tools
$ git clone https://github.com/phacility/libphutil.git
$ git clone https://github.com/phacility/arcanist.git

thedamon

$('div.modal').on('show', function() {
	var modal = this;
	var hash = modal.id;
	window.location.hash = hash;
	window.onhashchange = function() {
		if (!location.hash){
			$(modal).modal('hide');
		}
	}
});

eimg

<?php
function mmstrlen($str) {
  $standalones = array("ဤ", "၍", "ဪ", "၏", "၊", "။", "၌");
  $consonants = array("က", "ခ", "ဂ", "ဃ", "င", "စ", "ဆ", "ဇ", "ဈ", "ည", "ဍ", "ဌ", "ဋ", "ဎ", "ဏ", "တ", "ထ", "ဒ", "ဓ", "န", "ပ", "ဖ", "ဗ", "ဘ", "မ", "ယ", "ရ", "လ", "ဝ", "သ", "ဟ", "ဠ", "အ");
  $numbers = array("၀", "၁", "၂", "၃", "၄", "၅", "၆", "၇", "၈", "၉");

  $len = mb_strlen($str, "UTF-8");
  $count = 0;
  
  for($i = 0; $i < $len; $i++) {