Technology
5:00 am
Tue December 6, 2011

How Twitter's Trending Algorithm Picks Its Topics

Occupy Wall Street protesters meditate while a sign bearing their Twitter hashtag hangs from a railing in Zuccotti Park in October. Some activists accused Twitter of censorship because #OccupyWallStreet wasn't appearing on trending lists.
Jessica Rinaldi Reuters/Landov

Originally published on Wed December 7, 2011 2:18 pm

The list of "trending topics" on the right side of Twitter's home page is a coveted spot because millions of people see it. It often reflects what's hot in the news, from the death of Steve Jobs to Kim Kardashian's latest exploits.

Sometimes a topic that seems hot, like Occupy Wall Street, doesn't trend, leading some activists to charge Twitter with censorship. But the complex algorithms that determine trending topics are intended to find what's trending in the moment, and not what's been around for a long time.

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Politics
4:47 am
Tue December 6, 2011

In Kansas, Obama Invites Teddy Roosevelt Comparisons

President Obama will try Tuesday to follow in the footsteps of Teddy Roosevelt when he delivers an economic speech in Osawatomie, Kan., the same city where Roosevelt issued a famous call for a "New Nationalism" more than 100 years ago.

For Obama, this is a "connect-the-dots" speech. White House spokesman Jay Carney said it's a chance to show how the president's various economic proposals — from stricter banking oversight to payroll tax cuts — fit together, as Obama prepares for a re-election battle.

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Tovia Smith is an award-winning NPR News National Desk correspondent based in Boston.

For the last 25 years, Smith has been covering news around New England and beyond. She's reported extensively on the debate over gay marriage in Massachusetts and the sexual abuse scandal within the Catholic Church, including breaking the news of the Pope's secret meeting with survivors.

Smith has traveled to New Hampshire to report on seven consecutive Primary elections, to the Gulf Coast after the BP oil spill, and to Ground Zero in New York City after the September 11, 2001 attacks. She covered landmark court cases — from the trials of British au pair Louise Woodward, and abortion clinic gunman John Salvi, to the proceedings against shoe bomber Richard Reid.

Christopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.

Joyce seeks out stories in some of the world's most inaccessible places. He has reported from remote villages in the Amazon and Central American rainforests, Tibetan outposts in the mountains of western China, and the bottom of an abandoned copper mine in Michigan's Upper Peninsula. Over the course of his career, Joyce has written stories about volcanoes, hurricanes, human evolution, tagging giant blue-fin tuna, climate change, wars in Kosovo and Iraq and the artificial insemination of an African elephant.

Environment
4:45 am
Tue December 6, 2011

Calif. Takes Big Step Toward Greenhouse Gas Limits

Matt Horton is CEO of Propel Fuels, a company that installs equipment and pumps to handle biofuels. Horton says California is a great market because consumers are interested in renewable fuels.
Christopher Joyce NPR

Originally published on Tue December 6, 2011 8:18 pm

First of a two-part series on California's climate policies

California is about to try a radical experiment. A little over a year from now, the state will limit the greenhouse gas emissions from factories and power plants, and, eventually, emissions from vehicles.

The U.S. Congress tried to pass a similar plan for the whole country but dropped the idea last year.

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Hard Times: A Journey Across America
4:39 am
Tue December 6, 2011

For Mill Town's Youth, 'It Can't Get Any Worse'

High school senior Jared Lyons (center), shown here with his parents, Kim and Bob, worries how he'll afford to achieve his dream of becoming a doctor. The economy, he says, "can't get any worse than it is now."
Courtesy of Kim Lyons

Originally published on Tue December 6, 2011 12:25 pm

Part of a monthlong series

Coming after Gen X and Gen Y, the next generation of young people have been called "Gen Wrong Place, Wrong Time." With unemployment and college costs both sky-high and the housing market in collapse, young people today are facing extraordinary economic uncertainty.

Perhaps nowhere is that more clear than in a small town like East Millinocket, Maine.

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U.S.
4:00 am
Tue December 6, 2011

W.Va. Mine Settlement Expected

Originally published on Tue December 6, 2011 8:21 am

Transcript

LINDA WERTHEIMER, HOST:

This is MORNING EDITION from NPR News. I'm Linda Wertheimer.

STEVE INSKEEP, HOST:

And I'm Steve Inskeep. Good morning.

Let's talk, now, about the reported settlement in last year's deadly coal mine disaster in West Virginia. Details are expected later this morning, but NPR and other news organizations have confirmed some elements of a $200 million settlement that involves civil and criminal penalties levied against the owner of the Upper Big Branch mine.

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U.S.
4:00 am
Tue December 6, 2011

Blagojevich Sentencing Hearing Starts

Originally published on Tue December 6, 2011 8:21 am

Transcript

LINDA WERTHEIMER, HOST:

The public corruption saga of former Illinois Governor Rod Blagojevich is nearing an end. Earlier this year, he was found guilty of 18 counts of corruption, including trying to sell the U.S. Senate seat once held by President Obama. Today, a federal judge begins a hearing to determine Blagojevich's sentence. NPR's Cheryl Corley reports.

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Africa
4:00 am
Tue December 6, 2011

Fears Of Violence Over Congo Election Results

Originally published on Tue December 6, 2011 8:21 am

Transcript

LINDA WERTHEIMER, HOST:

On November 28th, elections were held in the Democratic Republic of Congo. They were only the second democratic polls in the nation's turbulent half-century of independence, and even before voters went to the polls there were signs that all was not well.

STEVE INSKEEP, HOST:

Violence marred the run-up to the actual voting day, so polling was extended in some areas up to three days. Opposition candidates said the election itself was tainted.

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Afghanistan
4:00 am
Tue December 6, 2011

Blasts Across Afghanistan Kill Dozens

Originally published on Tue December 6, 2011 8:21 am

Transcript

STEVE INSKEEP, HOST:

It's MORNING EDITION from NPR News. I'm Steve Inskeep.

LINDA WERTHEIMER, HOST:

And I'm Linda Wertheimer.

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