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Müs
PostPosted: Thu Feb 10, 2011 4:45 am 
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IBM is going after Jeopardy!

http://nexus404.com/Blog/2010/12/14/ibm ... -february/

This Monday, Tues, and Wednesday, IBM will pit their Watson computer against Ken Jennings and Brad Rutter.

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Lex Luthor
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PostPosted: Thu Feb 10, 2011 8:38 am 
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This Monday as in Monday the coming week? I'll have to tune in.
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Rorinthas
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I hope Jennings goes John Henry on his black plastic posterior.

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Vindicarre
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PostPosted: Tue Feb 15, 2011 11:45 am 
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Day 1 Tie

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Lex Luthor
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PostPosted: Tue Feb 15, 2011 11:52 am 
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They should make a question "What does this captcha say?" for Final Jeopardy.
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Foamy
PostPosted: Tue Feb 15, 2011 11:58 am 
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I was amazed when Watson's first category selection was the Daily Double.

Was a very interesting watch. I plan on catching tonight's and Wednesday's broadcasts, too.

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Rorinthas
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He seems to really well at thing's you'd expect a computer to do well at, like searching song lyrics.

Also since he can't actually respond to the other players, he repeated an answer that was already given wrong (though i've probably seen humans do that a time or two as well). I want to see more. Thank you Lex for putting up the videos.

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Talya
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PostPosted: Tue Feb 15, 2011 3:27 pm 
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Bah. Ken Jennings and Brad Rutter? Where's the fun in that? I want to see Watson take on Sean Connery and Burt Reynolds.

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Kaffis Mark V
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PostPosted: Tue Feb 15, 2011 3:33 pm 
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Talya wrote:
Bah. Ken Jennings and Brad Rutter? Where's the fun in that? I want to see Watson take on Sean Connery and Burt Reynolds.

That only works if Watson is aware of his opponent's answers. They might confuse him, dragging him down to their own level.

That said, I noticed that they mis-scored one of Watson's answers. In the "Beatles People" category, the one which answered "his silver hammer...", Watson answered "What is Maxwell's silver hammer," not "Who is Maxwell."

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Slythe
PostPosted: Tue Feb 15, 2011 5:01 pm 
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Day 2's game just ended and Watson crushed them, getting about $30,000, though it completely screwed up the final jeopardy question and guessed "Toronto" when the topic was "U.S. Cities".

What I wonder is how they determine how quickly Watson is able to 'hit the buzzer', so to speak, and what decides whether Watson will even attempt to answer a particular question.
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Lex Luthor
PostPosted: Tue Feb 15, 2011 5:10 pm 
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Slythe wrote:
Day 2's game just ended and Watson crushed them, getting about $30,000, though it completely screwed up the final jeopardy question and guessed "Toronto" when the topic was "U.S. Cities".

What I wonder is how they determine how quickly Watson is able to 'hit the buzzer', so to speak, and what decides whether Watson will even attempt to answer a particular question.


That's hilarious.

It takes time for Watson to think of the answer. The time when he is ready is probably when he hits the buzzer. Might also be some other factor/delay added in though. An algorithm determines his confidence level. If it is above a threshold he answers.
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Lenas
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PostPosted: Tue Feb 15, 2011 5:26 pm 
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Nope.

Quote:
Contestants can't ring in until banks of lights on either side of the game board — invisible to the viewers at home — flash in their eyes. Host Alex Trebek finishes reading the question — or answer, if you want to be a dork about it — and the lights fire up.

...

And perhaps more alarmingly for the humans standing on either side of it, Watson will be hard-wired into the game board. When those banks of lights come to life, Watson will be triggered by an electrical impulse. Jennings's and Rutter's nervous systems will be racing against a higher voltage, and it's been a long time since anyone could turn off the lights and get into bed before the room got dark.
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Kaffis Mark V
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PostPosted: Tue Feb 15, 2011 5:40 pm 
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Well, that does assume that Watson will have finished parsing the answer and searching his database by then (do they say when exactly he gets the text file?), and he's not quite hard-wired in... they showed he's got a mechanically operated buzzer just like the other two do. So he's firing a solenoid or whatever to hit the buzzer.

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Mookhow
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PostPosted: Tue Feb 15, 2011 5:48 pm 
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I believe Trebek said that the text file is sent as soon as the answer is revealed, which should be when the answer appears on the screen.

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Foamy
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Being completely oblivious as to how computers actually are programmed to 'think', what exactly do said algorithms really tell the computer to do.

What is it calculating?

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Lenas
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PostPosted: Tue Feb 15, 2011 6:42 pm 
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Likely advanced syntax parsing, narrowing down and comparing to knowledge banks for matches.
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Lex Luthor
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PostPosted: Tue Feb 15, 2011 8:08 pm 
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Foamy wrote:
Being completely oblivious as to how computers actually are programmed to 'think', what exactly do said algorithms really tell the computer to do.

What is it calculating?


It's essentially the same thing as a Google, but fine-tuned to a different task (think a truck versus a car). Also it uses its own intranet and not the Internet. It's a search engine. You feed it a query, and it parses it and returns a relevant response.
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Kaffis Mark V
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PostPosted: Tue Feb 15, 2011 9:03 pm 
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Actually, Lex, the similarities to Google are the most simple of its steps.

The real complexity comes from its ability to parse the questions typical of Jeopardy!, and glean the relevant relationships and keywords from the moray of double meanings, homonyms, and other wordplay classic to Jeopardy! in order to search against the right things. That's the real breakthrough, here.

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Lex Luthor
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PostPosted: Tue Feb 15, 2011 9:06 pm 
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Kaffis Mark V wrote:
Actually, Lex, the similarities to Google are the most simple of its steps.

The real complexity comes from its ability to parse the questions typical of Jeopardy!, and glean the relevant relationships and keywords from the moray of double meanings, homonyms, and other wordplay classic to Jeopardy! in order to search against the right things. That's the real breakthrough, here.


Many users of Google type long strings into the search, which miraculously returns relevant links a lot of the time. These strings are often very complex. The two systems are fundamentally the same.
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Kaffis Mark V
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PostPosted: Tue Feb 15, 2011 9:18 pm 
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/facepalm

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Midgen
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PostPosted: Wed Feb 16, 2011 2:46 am 
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ehl oh ehl....
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Numbuk
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PostPosted: Wed Feb 16, 2011 2:54 pm 
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Talya wrote:
Bah. Ken Jennings and Brad Rutter? Where's the fun in that? I want to see Watson take on Sean Connery and Burt Reynolds.


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Nitefox
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PostPosted: Wed Feb 16, 2011 3:06 pm 
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Arathain Kelvar
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PostPosted: Wed Feb 16, 2011 4:01 pm 
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Lex Luthor wrote:
Kaffis Mark V wrote:
Actually, Lex, the similarities to Google are the most simple of its steps.

The real complexity comes from its ability to parse the questions typical of Jeopardy!, and glean the relevant relationships and keywords from the moray of double meanings, homonyms, and other wordplay classic to Jeopardy! in order to search against the right things. That's the real breakthrough, here.


Many users of Google type long strings into the search, which miraculously returns relevant links a lot of the time. These strings are often very complex. The two systems are fundamentally the same.


They're not. For example, entering "Any time you feel the pain, hey -- this guy -- Don't carry the world upon your shoulders" (one of the clues on Monday) into Google clearly identifies the song "Hey Jude". That's easy. Getting the computer to know the answer is "Who is Jude" is hard. And that's an easy question. The computer has to know it's looking for a name, has to know to look in the lyrics to find a name close to the lyrics quoted, and then process the answer. Like I said, that's a very easy question. And insanely easy for you. Try to think like a computer, and you'll see it's pretty tricky.
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Kaffis Mark V
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PostPosted: Wed Feb 16, 2011 4:11 pm 
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It actually flabbergasts me that a computer programmer is being so dense about the nuances in programming problems here.

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