Posts on Ermias Beyene Tesfamariam

Fixing MacBook Wi-Fi Dropout Issues

Tue, 03 Oct 2017 00:00:00 +0000

The most common wireless networking problems with MacBook’s macOS Sierra 10.12 is either randomly dropping Wi-Fi connections or an unusually slow or delayed Wi-Fi experience.

The temporary solution to this is to refresh the en0 (Wi-Fi) network interface silently in background. The code below will refresh every 30 seconds. Open a terminal and copy and paste this bash code below and hit enter:

while true; do echo "add State:/Network/Interface/en0/RefreshConfiguration temporary" | sudo scutil; sleep 30; done;

Beautiful maps with R and Google Maps

Mon, 23 Apr 2012 00:00:00 +0000

It’s been awhile since I have posted on this blog. I have been caught up in the midst of publishing my thesis works as a book which is now available for at amazon and trying to be adventurous during the harsh but still exciting Norwegian winter.

A friend of mine asked me last week to help him plot locations of boreholes, that he is doing research on, to a decent map. I came up with a suggestion of creating it in R using Google Maps as a base map. Of course this could have been done easily and more aesthetically attractive using the conventional GIS softwares. It is more exciting and reproducible where the R script can be reused easily.

Maps give Europeans close-up picture of emissions from industrial facilities

Sat, 28 Jan 2012 00:00:00 +0000

Online maps published by the European Pollutant Release and Transfer Register (E-PRTR), allow users to pinpoint the key environmental data and the main sources of air pollution from industrial facilities across Europe. The European Pollutant Release and Transfer Register (E-PRTR) is the a Europe-wide register that provides easily accessible key environmental data from industrial facilities in European Union Member States and in Iceland, Liechtenstein, Norway, Serbia and Switzerland. It replaces and improves upon the previous European Pollutant Emission Register (EPER). The register contains data reported annually by some 28,000 industrial facilities covering 65 economic activities across Europe. The interactive map shows where certain pollutants are released from individual industrial plants. . The Europe-wide register aims to help Europeans actively engage in decisions affecting the environment. The map search option provides a geographical approach to the E-PRTR data. The map can even be viewed here in maximized version.

5 Great Maps... That are just great!

Fri, 13 Jan 2012 00:00:00 +0000

Google’s Geo Developer blog posted about five great maps developed based on Google Maps API. The list includes the renowned photo sharing tool - instagram’s app called InstaEarth, which makes use of the to help users discover instagram photography in a map.

InstaEarth Another interesting application that uses the Google Maps API is the Submarine Cable Map from TeleGeography which makes use of the to generate map layers of submarine cable routes. The map also uses to customize the standard Google base maps for better visualization of the cable routes.

Open Street Map Edits of Berlin City 2007 - 2010

Sat, 10 Dec 2011 00:00:00 +0000

ITO World produced an impressive visualization video of the tremendous amount of mapping that has been done by the Open Street Map community on Berlin city. The video shows a white line each time a new route is entered or an old one edited. The video shows a growth of active participation in the OSM community.

from on [Vimeo](http://vimeo.com/)

Google LatLong: Live traffic information for 13 European countries...

Thu, 14 Jul 2011 00:00:00 +0000

Google LatLong: Live traffic information for 13 European countries…

Chronological visualization map by opendatacity

Tue, 05 Apr 2011 00:00:00 +0000

Green party politician Malte Spitz sued the German telecoms giant, Deutsche Telekom, to hand over the data recorded from his mobile phone on his whereabouts. The data revealed was stunning where the cellphone company has recorded and saved more than 35,000 location data from his mobile phone for the a period of six months which is about 78% of the time. It traced him where he worked, the cities he visited, the places he hang out , basically where he was at every moment of his life, in spite of that, Spitz never knew he was been tracked.Spitz made the data available to a German newspaper Zeit Online who produced a striking interactive map

Esri Flex programming challenge 2011

Tue, 21 Dec 2010 00:00:00 +0000

Google+

Guilhem Vellut's Tutorial on Thematic mapping with the Google Maps Flash API

Tue, 21 Dec 2010 00:00:00 +0000

Tutorial : Thematic mapping with the Google Maps Flash API « Leveraging Visionary Paradigms

Writing clean, testable, high quality code in Python

Mon, 20 Dec 2010 00:00:00 +0000

Writing clean, testable, high quality code in Python

Revolutions: Facebook's Social Network Graph

Wed, 15 Dec 2010 00:00:00 +0000

Paul Butler, an intern on Facebook’s data infrastructure engineering team, was interested in visualizing the “locality of friendship”. Luckily, he has some great data to work with: Facebook’s social network of the friendships between its 500 million members. But visualizing that much data can be a challenge in its own right – it takes skill to draw meaning from what could easily be an incomprehensible mess of data. After drawing a sample of 10 million friend pairs from the Hive interface to Facebook’s Hadoop-based database, Paul set to using R to solve this visualization problem.

Map of Great Britain phone calls

Sun, 12 Dec 2010 00:00:00 +0000

The map shows a great visualization of phone calls in UK from a study made by researchers at University College London, MIT, and Cornell University, with the help of BT Group.

The map depicts bidirectional traffic of around 12 billion phone calls over a period of one month. Each of the 3042 pixels represents an area of 9.5 x 9.5 km with the color intensity indicating the length of the call time. Read more about the research, on the paper published at PLoS, Redrawing the Map of Great Britain from a Network of Human Interactions.

Which Fantasy/SciFi Character Are You?

Sat, 11 Dec 2010 00:00:00 +0000

I took a just for fun which matches you with famous science fiction characters that you have the most in common with and I got Anakin Skywalker. A famous character in the Star Wars Universe. :)

Anakin Skywalker

Struggling for self-assurance over hidden angst, you are highly adept and full of surprises.

“I find your lack of faith disturbing.”

short quiz