Kommentare zu: Lazy and Impractical Mathematicians http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm Das krümelige Weblog - live aus der Parallelgesellschaft .. Mon, 08 Sep 2008 09:47:21 +0000 http://wordpress.org/?v=2.6.2-beta Von: Tuesday Links Post « Almost Philosophy http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-32026 Tuesday Links Post « Almost Philosophy Tue, 08 Apr 2008 01:51:06 +0000 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-32026 [...] over at Too Much Cookies Network there’s a post about catching a bus or, more to the point, a response to a paper that deals with the question of when it is worth [...] [...] over at Too Much Cookies Network there’s a post about catching a bus or, more to the point, a response to a paper that deals with the question of when it is worth [...]

]]> Von: New Carnival of Mathematics « JD2718 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-32024 New Carnival of Mathematics « JD2718 Sat, 05 Apr 2008 04:13:26 +0000 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-32024 [...] trackback #30, at the Number Warrior. A dozen posts, wide variety. Don’t miss the anti-math post at Too Much Cookies [...] [...] trackback #30, at the Number Warrior. A dozen posts, wide variety. Don’t miss the anti-math post at Too Much Cookies [...]

]]> Von: Carnival of Mathematics #30 « The Number Warrior http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-32023 Carnival of Mathematics #30 « The Number Warrior Fri, 04 Apr 2008 20:44:24 +0000 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-32023 [...] Abo-Namous gets grumpy about Lazy and Impractical Mathematicians, or more specifically a paper about if it’s worth it to hike to the next stop if you miss a [...] [...] Abo-Namous gets grumpy about Lazy and Impractical Mathematicians, or more specifically a paper about if it’s worth it to hike to the next stop if you miss a [...]

]]> Von: <![CDATA[Omar]]> http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-31781 Tue, 05 Feb 2008 08:51:12 +0000 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-31781 @Munir: actually it makes a big difference if a vehicle drives with a constant velocity and does not take into account people getting inside. Especially if the distance between two bus stops is small, the velocity distribution becomes important. The model used by the three doesn't take shortcuts into account and therefor doesn't consider catching up with the previous bus as a possibility, since pedestrians travel slower than buses in general. The whole thing is generally not so linear as the scientists try to show. Life is much more complicated. @Munir: actually it makes a big difference if a vehicle drives with a constant velocity and does not take into account people getting inside. Especially if the distance between two bus stops is small, the velocity distribution becomes important.

The model used by the three doesn’t take shortcuts into account and therefor doesn’t consider catching up with the previous bus as a possibility, since pedestrians travel slower than buses in general. The whole thing is generally not so linear as the scientists try to show.

Life is much more complicated.

]]> Von: <![CDATA[Munir]]> http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-31780 Mon, 04 Feb 2008 16:10:03 +0000 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-31780 As I see it, the authors actually did not need to take your three points from above into account, because the variables v_b and v_w implicitly contain whatever velcity distribution over the route. Consider a bus arriving at time t. Waiting passengers don't care whether the bus had to stop at a red sign or where it drove slower and where it drove faster, they only care about the arrival time t. The same applies to the possibility for a pedestrian to take short cuts: in this scenario it is only important, how much time elapses until you reach your destination nad not what path you take (ok, there is only one variable d, but one could adjust v_w to reflect the advantage of short cuts). So all in all I don't think there are any seriouse mistakes made. The irritating thing is that the result is so trivial: Get a bus schedule and use that transportation that gets you to your destination first. As I see it, the authors actually did not need to take your three points from above into account, because the variables v_b and v_w implicitly contain whatever velcity distribution over the route. Consider a bus arriving at time t. Waiting passengers don’t care whether the bus had to stop at a red sign or where it drove slower and where it drove faster, they only care about the arrival time t. The same applies to the possibility for a pedestrian to take short cuts: in this scenario it is only important, how much time elapses until you reach your destination nad not what path you take (ok, there is only one variable d, but one could adjust v_w to reflect the advantage of short cuts).

So all in all I don’t think there are any seriouse mistakes made. The irritating thing is that the result is so trivial: Get a bus schedule and use that transportation that gets you to your destination first.

]]> Von: <![CDATA[Too Much Cookies Network » In eigener Sache: Tagesschaus Schlußlicht]]> http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-31779 Mon, 04 Feb 2008 12:02:04 +0000 http://www.toomuchcookies.net/archives/1234/lazy-and-impractical-mathematicians.htm#comment-31779 [...] drei Tagen habe ich einen Kommentar dazu auf Tech-Cookies verfasst, der nun wiederum von der Tagesschau-Redaktion aufgegriffen wurde: [...] [...] drei Tagen habe ich einen Kommentar dazu auf Tech-Cookies verfasst, der nun wiederum von der Tagesschau-Redaktion aufgegriffen wurde: [...]

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