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Sunday, January 30, 2011

IBM's 'Watson' Computer to Air on Jeopardy in February - eWeek

IBM?s ?Watson? computer will finally make its appearance on ?Jeopardy? in February, taking on two of the show?s all-time winners over a three-day span.

The game will test Watson?s abilities to think in a human-like way, not only being able to retrieve information when requested?as is done with a normal Google search request?but also to go through its vast database of information, make the necessary connections and pick up on the subtle nuances, puns and riddles necessary to answer questions in Jeopardy.

IBM?s goal in building Watson?named after IBM founder Thomas J. Watson?is to create a system that can answer questions posed in natural language, and to do so quickly and correctly, according to company officials. IBM over the past few months have been running Watson through a series of 50 or so mock Jeopardy games at its Hawthorne, N.Y., research facility against some former game show participants. The question-answer machine reportedly has won some games and lost others.

?After four years, our scientific team believes that Watson is ready for this challenge based on its ability to rapidly comprehend what the Jeopardy clue is asking, analyze the information it has access to, come up with precise answers, and develop an accurate confidence in its response,? David Ferrucci, the scientist leading the IBM Research team that has created Watson, said in a Dec. 14 statement. ?Beyond our excitement for the match itself, our team is very motivated by the possibilities that Watson's breakthrough computing capabilities hold for building a smarter planet and helping people in their business tasks and personal lives." 

The Jeopardy challenge echoes the chess match in 1997, when an IBM computer called Deep Blue beat chess champion Garry Kasparov. At the time, IBM officials said Deep Blue could calculate 200 million chess moves per second based on a fixed problem.

Watson will have to work differently, however. IBM researchers want it to be able to hear the question posed in natural language and?using massively parallel processing capabilities to understand the complex questions?figure out the subtext of the request, zero in on exactly what its being sought and then find the answer.

Competing against Watson will be Ken Jennings, who broke the Jeopardy record for most consecutive games played with 74 during the 2004-2005 season and won more than $2.5 million, and Brad Rutter, who won more than $3.2 million, the most ever by a contestant. The winner will take $1 million, with second place earning $300,000 and third place $200,000. Rutter and Jennings will donate half of their winnings to charity; IBM will donate all of its winnings.

While the Jeopardy show?which will air Feb. 14-16?will be entertaining, IBM researchers say question-answer systems like Watson will have real-life impacts on business in a variety of fields, including health care, online self-service desks, and tourism, according to IBM. The computer?s ability to quickly sort through vast amounts of data and return precise answers?and then rank the confidence in those answers?also will be key to IBM?s ongoing Smarter Planet initiative, which is driving to improve the world?s infrastructures?from roads to waterways to electrical grids?by putting more intelligence into the systems.





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Air Force Limits Access to Web Sites Over Secret Cables - New York Times

When Air Force personnel on the service’s computer network try to view the Web sites of The Times, the British newspaper The Guardian, the German magazine Der Spiegel, the Spanish newspaper El PaĆ­s and the French newspaper Le Monde, as well as other sites that posted full confidential cables, the screen says “Access Denied: Internet usage is logged and monitored,” according to an Air Force official whose access was blocked and who shared the screen warning with The Times. Violators are warned that they face punishment if they try to view classified material from unauthorized Web sites.

Some Air Force officials acknowledged that the steps taken might be in vain since many military personnel could gain access to the documents from home computers, despite admonishments from superiors not to read the cables without proper clearances.

Computer network specialists within the Air Force Space Command last week followed longstanding procedures to keep classified information off unclassified computer systems. “News media Web sites will be blocked if they post classified documents from the WikiLeaks Web site,” said Lt. Col. Brenda Campbell, a spokeswoman for the Air Force Space Command, a unit of which oversees Air Force computer systems. “This is similar to how we’d block any other Web site that posted classified information.”

Colonel Campbell said that only sites posting full classified documents, not just excerpts, would be blocked. “When classified documents appear on a Web site, a judgment will be made whether it will be blocked,” she said. “It’s an issue we’re working through right now.”

Spokesmen for the Army, Navy and Marines said they were not blocking the Web sites of news organizations, largely because guidance has already been issued by the Obama administration and the Defense Department directing hundreds of thousands of federal employees and contractors not to read the secret cables and other classified documents published by WikiLeaks unless the workers have the required security clearance or authorization.

“Classified information, whether or not already posted on public websites or disclosed to the media, remains classified, and must be treated as such by federal employees and contractors, until it is declassified by an appropriate U.S. Government authority,” said a notice sent on Dec. 3 by the Office of Management and Budget, which is part of the White House, to agency and department heads.

A Defense Department spokesman, Col. David Lapan, in an e-mail on Tuesday night sought to distance the department from the Air Force’s action to block access to the media Web sites: “This is not DoD-directed or DoD-wide.”

The Air Force’s action was first reported on The Wall Street Journal’s Web site late Tuesday and underscores the wide-ranging impact of the recent release of secret State Department documents by WikiLeaks, and five news organizations, including The Times. It also illustrates the contortions the military and other government agencies appear to be going through to limit the spread of classified information that has become widely available in the public domain.

“It is unfortunate that the U.S. Air Force has chosen not to allow its personnel access to information that virtually everyone else in the world can access,” said a spokeswoman for The Times, Danielle Rhoades Ha. A senior administration official said Tuesday that the administration’s policy contained some leeway, for instance, to allow certain employees to download information in order for them to be able to verify that classified information was leaking into the public domain, and to assess damage to national security and potential danger to sources.

Steven Aftergood of the Federation of American Scientists, a secrecy specialist, said dozens of agencies, as well as branches of the military and government contractors, had issued their own policy instructions based on the Office of Management and Budget memo.

“It’s a self-defeating policy that will leave government employees less informed than they ought to be,” Mr. Aftergood said.

William J. Broad contributed reporting from New York.


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Poll: Emanuel has early lead for Chicago mayor - Chicago Tribune

Former White House chief of staff Rahm Emanuel is off to an early lead in the race for Chicago mayor, but there is plenty of room for other contenders in the crowded field as the fluid contest takes shape, a new Tribune/WGN poll found.

Emanuel had the support of 32 percent of voters, just ahead of 30 percent who were undecided, making him the only candidate in double-digits with more than two months before the Feb. 22 city election. He was well short of the outright majority needed to avoid an April runoff between the top two finishers.

First though, Emanuel has to survive a ballot challenge by those who say he doesn't qualify under rules requiring mayoral candidates to be Chicago residents for a year before the election. While several more of the 15 current candidates could be knocked off or drop out as the race gets serious, the poll showed a splintered field largely defined by name recognition.

Former Chicago Public Schools chief Gery Chico and U.S. Rep. Danny Davis each had 9 percent, with state Sen. James Meeks at 7 percent and former U.S. Sen. Carol Moseley Braun at 6 percent. City Clerk Miguel del Valle had 3 percent.

Former U.S. Sen. Roland Burris, whose intention to stay in the race is uncertain, had just 2 percent backing. None of the other candidates reached 1 percent in the poll of 721 registered, likely voters conducted Dec. 10-13, which has an error margin of 3.6 percentage points.

The poll came amid the holiday season, when voters typically are more focused on family and friends than politics, and before any of the major candidate forums have taken place. Nevertheless, the race has already become high-profile, with Emanuel running television commercials and many of the big-name candidates holding public events on a near-daily basis.

It's the first time in more than 60 years that a sitting Chicago mayor won't be on the ballot, after Mayor Richard Daley in September announced he would not run for re-election as he neared 22 years in office.

Although Daley's approval rating was sinking, he was still considered a formidable political foe, after years of building support that spanned the city's racial, ethnic and economic divisions. More than any other candidate so far, Emanuel also is bridging those gaps, the poll indicated.

The former North Side congressman is out front on the strength of his support from lakefront wards, white voters and the wealthy, according to the survey. He's also holding his own among Latino and African-American voters.

He has the support of more Hispanics than any other candidate, is backed by more blacks than anyone except Davis and enjoys the backing of 46 percent of whites. More than half of voters who live in households with more than $100,000 in annual income said they would vote for him.

Davis, an African-American political veteran who also served on the City Council and the Cook County Board, was backed by 21 percent of black voters, but just 2 percent of Hispanics and 1 percent of whites.

Among blacks, 30 percent are undecided, 19 percent back Emanuel, 13 percent favor Meeks and 10 percent are for Braun. Burris, once a popular African-American politician, had just 3 percent support among blacks.

Chico — of Latino, Greek and Lithuanian heritage — had 15 percent support among whites, 12 percent among Hispanics and just 2 percent among blacks.

Chico and del Valle combined trail Emanuel in the Latino community. Among likely Hispanic voters, 36 percent are undecided, 27 percent favor Emanuel, 14 percent del Valle and 12 percent Chico.

Most voters are not disappointed by Daley's decision not to run again. Only 30 percent wanted to see him run for a record seventh term, while 59 percent said they would not like to see him run again. The rest weren't sure.

Last July, a Tribune poll found that 53 percent of voters didn't want to see Daley elected to another term, and only 31 percent wanted to see him re-elected. And only 37 percent approved of the job he was doing.

Daley has been hurt politically by corruption scandals under his watch, the perception that not enough is being done to combat crime, and consternation over the effects of his decision to lease out the city's parking meter system.

hdardick@tribune.com


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