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0 Subject: IBM's Watson on Jeopardy

Posted by: Guru
- [330592710] Mon, Feb 14, 2011, 11:21

Tonight marks the start of the three-day tournament pitting two prodigious Jeopardy champions against the IBM computer "Watson".

IBM has posted a series of short videos chronicling the Watson project:
http://www-03.ibm.com/innovation/us/watson/

Fascinating stuff.
1JeffG
      Dude
      ID: 01584348
      Mon, Feb 14, 2011, 14:53
I have not watched Jeopardy! in years but definitely have the DVR set for the next three nights. From everything I read "Watson" can interpret alot of language nuances, but has a weakness if the questions (or is that answers) are very short. It won a mini test-game against the two contestants it faces for real to be broadcast tonight, but it also had a few nonsense answers along the way.
2Farn @ work
      ID: 391271411
      Tue, Feb 15, 2011, 11:57
How did this go last night?
3weykool
      ID: 138481617
      Tue, Feb 15, 2011, 12:24
They only got through single Jeopardy but the computer did pretty good.
There are some obvious programming problems as Watson gave the same incorrect answer that Jennings gave on one question.

The current scores:
Jennings 2,000
Watson 5,000
The other guy 5,000
4Guru
      ID: 330592710
      Tue, Feb 15, 2011, 12:37
Yes, It appears that Watson is not aware of incorrect answers given by other contestants. But he was very impressive, nonetheless.
5Great One
      ID: 3414219
      Tue, Feb 15, 2011, 12:45
Its amazing to me that he can make sense of a Jeopardy question which can many times be a riddle.

I get how you can program a computer to answer a question like - "First U.S. President" thats simple and I'm sure he'd get it right. But some of the questions and categories on Jeopardy read like riddles... how it processes those is fascinating to me.
6Skidazl
      ID: 3253219
      Tue, Feb 15, 2011, 16:42
I thought it was going to be a blowout for the first 15 questions, I think Waton was up like 5000 to 2, but the second 15, more "riddle" like questions he seemed to falter and missed a few..
7JeffG
      ID: 47112621
      Tue, Feb 15, 2011, 22:18
Day 2 saw Watson romp. There were mostly general knowledge questions and not many or any word play or riddles. Watson ended with a $25K+ lead over his opponents. Interestingly enough, the humans both got the final Jeopardy answer right to double up for the day, and Watson was incorrect but barely wagered with a big lead. The category was US Cities and asked what city has its largest airport named for a World War II hero and a second airport named for a World War II battle. Both humans correctly responded with Chicago, but Watson answered Toronto.
8R9
      ID: 2854239
      Wed, Feb 16, 2011, 03:46
I missed Day 1, but Watson sure was impressive in Day 2. The final Jeopardy miss was rather funny, as was his first Daily Double; he wagered 6,435$ or some similar weird number. No idea how he came up with that.
9weykool
      ID: 3716166
      Wed, Feb 16, 2011, 07:06
US Cities....Toronto?
I guess Watson was nervous on his first Final Jeopardy.
10Building 7
      Leader
      ID: 171572711
      Wed, Feb 16, 2011, 13:27
Sometimes they all know the answer, and whoever buzzes in first gets it. Is Watson able to buzz in a microsecond sooner because its a computer?
If you buzz in too soon, you get locked out for awhile. I think you have to wait until Alex is done reading the question. I have not seen this tournament.
11Great One
      ID: 461381611
      Wed, Feb 16, 2011, 14:30
I also wonder who gets to buzz in quickest... how could the one contestant always be buzzing in quickest when all 3 clearly know the answer and are trying to buzz in as soon as they possibly can.
12Guru
      ID: 330592710
      Wed, Feb 16, 2011, 14:49
From Ken Jennings' website:
Here's how it works: the buzzers don't get activated until Alex is finished reading each question. If you buzz in too early, the system actually locks you out for a fifth of a second or so. But if you're too late, the player next to you is going to get in first. Somewhere between too early and too late is a very narrow sweet spot, like swinging a tennis racket or a baseball bat. No, that's not right. The Jeopardy! buzzer, she is like a woman. No, that's not it either. All I know is, the more I thought about the timing, the less I could nail it. When I could somehow just Zen out and not think about what I was doing, I would do okay.
Watson uses the exact same type of buzzer as the human contestants, with a mechanical interface. So somehow, he must receive a signal that the question has been read. That seems like an advantage for the computer, which can exercise precision timing in that regard.
13Guru
      ID: 330592710
      Wed, Feb 16, 2011, 14:53
Further confirmation of the buzzer timing advantage...

http://www.tnr.com/article/83337/ibm-watson-computer-jeopardy
14Perm Dude
      ID: 5510572522
      Tue, Mar 01, 2011, 21:58
Humanity is saved! Rush Holt (D-NJ) beats Watson.
15DWetzel
      ID: 31111810
      Tue, Mar 01, 2011, 22:03
Saw that on Fox, except headline says Rush Holt (R) beats Watson. ;)
16Perm Dude
      ID: 5510572522
      Tue, Mar 01, 2011, 22:06
Heh.
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