Social Balance

“The shifting of alliances and rivalries in a social group can be viewed as arising from an energy minimization process. For example, suppose you have two friends who happen to detest each other. The resulting awkwardness often resolves itself in one of two ways: either you drop one of your friends, or they find a way to reconcile. In such scenarios, the overall social stress corresponds to a kind of energy that relaxes over time as relationships switch from hostility to friendship or vice versa.” — from Energy Landscape of Social Balance, Seth A. Marvel, Steven H. Strogatz, and Jon M. Kleinberg, DOI: 10.1103/PhysRevLett.103.198701

Very interesting! More interesting is what they conclude for the future research, viz, the “challenge for the future is to understand its large-scale structure, perhaps even including a characterization of the pathways leading out of the deepest minima–those corresponding to the most entrenched conflict–and toward states of reconciliation.”

Recreation

Online chessPlay online chess at chessworld.net!

OR

Challenge me on Facebook (chess.com).

Happy Birthday SOS

Today is the 100th birthday of the International Morse code distress signal SOS (Morse code: … / — / … ). It was first adopted by the German government in radio regulations effective April 1, 1905, and became the worldwide standard when it was included in the second International Radio-telegraphic Convention, which was signed on 3 November 1906, and became a worldwide standard on 1 July 1908.

On the occasion of official hundredth birthday of SOS, I’ll translate this post in Morse Code.

- --- -.. .- -.-- / .. ... / - .... . / .---- ----- ----- - .... / -... .. .-. - .... -.. .- -.-- / --- ..-. / - .... . / .. -. - . .-. -. .- - .. --- -. .- .-.. / -- --- .-. ... . / -.-. --- -.. . / -.. .. ... - .-. . ... ... / ... .. --. -. .- .-.. / ... --- ... / -.--. -- --- .-. ... . / -.-. --- -.. . ---... / .-.-.- .-.-.- .-.-.- / -..-. / -....- -....- -....- / -..-. / .-.-.- .-.-.- .-.-.- / -.--.- .-.-.- / .. - / .-- .- ... / ..-. .. .-. ... - / .- -.. --- .--. - . -.. / -... -.-- / - .... . / --. . .-. -- .- -. / --. --- ...- . .-. -. -- . -. - / .. -. / .-. .- -.. .. --- / .-. . --. ..- .-.. .- - .. --- -. ... / . ..-. ..-. . -.-. - .. ...- . / .- .--. .-. .. .-.. / .---- --..-- / .---- ----. ----- ..... --..-- / .- -. -.. / -... . -.-. .- -- . / - .... . / .-- --- .-. .-.. -.. .-- .. -.. . / ... - .- -. -.. .- .-. -.. / .-- .... . -. / .. - / .-- .- ... / .. -. -.-. .-.. ..- -.. . -.. / .. -. / - .... . / ... . -.-. --- -. -.. / .. -. - . .-. -. .- - .. --- -. .- .-.. / .-. .- -.. .. --- -....- - . .-.. . --. .-. .- .--. .... .. -.-. / -.-. --- -. ...- . -. - .. --- -. --..-- / .-- .... .. -.-. .... / .-- .- ... / ... .. --. -. . -.. / --- -. / ...-- / -. --- ...- . -- -... . .-. / .---- ----. ----- -.... --..-- / .- -. -.. / -... . -.-. .- -- . / .- / .-- --- .-. .-.. -.. .-- .. -.. . / ... - .- -. -.. .- .-. -.. / --- -. / .---- / .--- ..- .-.. -.-- / .---- ----. ----- ---.. .-.-.- --- -. / - .... . / --- -.-. -.-. .- ... .. --- -. / --- ..-. / --- ..-. ..-. .. -.-. .. .- .-.. / .... ..- -. -.. .-. . -.. - .... / -... .. .-. - .... -.. .- -.-- / --- ..-. / ... --- ... --..-- / .. .----. .-.. .-.. / - .-. .- -. ... .-.. .- - . / - .... .. ... / .--. --- ... - / .. -. / -- --- .-. ... . / -.-. --- -.. . .-.-.-

Links

  1. English to Morse Code Translator
  2. De-translate Morse Code to English

Have your private posts written in Morse. It is so much a fun, especially if you are a geek. 🙂

Links for the Week

Biblical literalism or low IQ: which came first?

IQ vs Biblical Literacy

Evolution of the hottest woman in the gaming world

Lara Croft

Amarok 2 goodness

Amarok 2.0

Glenn McGrath has become a Dilliwala

Glenn McGrath

Freeman Dyson reviews two books on Global Warming

Algorithmic Combinatorial Game Theory

Prof. Erik Demaine has updated the survey paper titled “Playing Games with Algorithms: Algorithmic Combinatorial Game Theory.” The recent update appears after a long wait of 7 years and has Prof. Bob Hearn as a coauthor.

The paper presents interesting, clean problems in algorithms and complexity theory –many of which remain open– with the purpose to provide an overview of the area to encourage further research.

Safety First!

A big thank you to Sakshi for the enlightening post. Link: PrevAIDS.org

Open Courseware from IITs

A joint venture by seven Indian Institutes of Technology (IITs) and Indian Institute of Science (IISc), National Programme on Technology Enhanced Learning (NPTEL),  funded by Ministry of Human Resource Development (MHRD), Government of India, aims to enhance the quality of engineering education in the country by developing curriculum based video and web courses. To this cause,  they have entered into an agreement with Google and YouTube for wider dissemination of the courses taught at IITs and IISc.

The NPTEL YouTube channel covering the courses hosts 13 courses right now and will cover 110 courses by March this year.

I think this is a great beginning towards open access academic content and research.

Pointer: Why India Needs Open Access? (Richard Poynder interviews Professor Subbiah Arunachalam).