On 9/20/2012 11:27 PM, meekerdb wrote:
On 9/20/2012 8:17 PM, Stephen P. King wrote:
On 9/20/2012 9:50 PM, meekerdb wrote:
On 9/20/2012 6:25 PM, Stephen P. King wrote:
On 9/20/2012 12:09 PM, meekerdb wrote:
On 9/20/2012 12:22 AM, Stephen P. King wrote:
Any one up to explaining this:
http://www.qmul.ac.uk/media/news/items/se/38864.html
What's to explain? The bees found the shortest route. Do you
suffer from the misconception that NP-hard = insoluble? NP is
just a description of how a computation scales. For the number of
places bees visit it may be very easy to solve, even though the
number of steps grows faster than polynomially with the number of
places to visit.
Brent
--
Gee Brent,
Leave it to you to miss the obvious. How did the computation
occur for the bees? What the researches showed is that bees can
figure out the solution and navigate it as they go from flower to
flower. How does this happen?
I didn't miss the obvious way to find out, which was to read the
paper. They just tried different routes (which in computerese is
called 'exhaustive search').
Brent
All of them?
Yes, all of them. There were only four flowers to go to. And as
Jason pointed out the bees didn't 'solve' the problem in the sense of
always taking the shortest route - they only did so 40% of the time.
Brent
WELL! I was unable to read the abstract. So, the title of the article is
a lie!
--
Onward!
Stephen
http://webpages.charter.net/stephenk1/Outlaw/Outlaw.html
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