Effectively the international (financial) system has a tow-tier structure：Countries that can borrow in their own currency constitute the center, and those, whose borrowings are denominated in one of t

Good morning. As families across our Nation gather to celebrate Christmas, Laura and I send our best wishes for the holidays. We hope that your Christmas will be blessed with family and fellowship. At

Dobriy Viecher Sochi! I am Ban Ki-moon, Secretary-General of the United Nations. My warmest greetings to IOC President Honorable Thomas Bach and all those gathered for the 22nd Winter Olympic Games! T

In 2012, Kaggle challenged its community to build an algorithm that could grade high-school essays. 2012年，Kaggle给当地学校出了个难题，设计一个算法来评判高中作文。 The winning algorithms were able to match the grades given by

This afternoon, in his second press briefing, White House Press Secretary Robert Gibbs fielded questions on energy independence, the stimulus package, and the auto industry. Here are some selected res