Ole Tange wrote:
On 1/15/07, Paul Bohme <[EMAIL PROTECTED]> wrote:
Dave Crossland wrote:
> On 15/01/07, Gervais Mulongoy <[EMAIL PROTECTED]> wrote:
>> Heh, until the phone spam operators start using basic voice
>> recognition and
>> to defeat the simple riddle :p
>
> Spammers don't do email address de-obfuscation because it takes too
> much processing time; I can't see them doing this in practice :-)
Unfortunately, with zombie bot-nets being what they are, spammers have
essentially infinite CPU power at their disposal. Whether the
investment to get through a single obstinate node is worthwhile, look
for any mechanism short of a pure white-list to be eventually overrun.
Could you elaborate on that?
To me it seems that if you can solve riddles then you are fairly close
to making a computer that passes the Turing test. Especially if the
riddles are not of the same form: "What is ten plus hundred?" "Enter
the last five digits of my phone number" "Enter yesterday's date"
First of all you need to solve speech to text. Then you need to parse
and understand the sentence. Both problems have proven to be really
hard problems. Throwing a botnet after this is not going to solve it
if the algorithm is simply not there.
Thus the 'Whether the investment to get through a single obstinate node'
comment above - acknowledgment that cases like this probably won't
matter enough to warrant the effort on the part of the unwanted caller.
As a more general note, many suggestions have been put forth in the
email realm to incur some CPU cost for sending an email - these do fall
readily enough given enough CPU power.
If someone were to arrange a central call-filtering mechanism to kill
off these kinds of calls, count on someone else circumventing it.
Discussions about algorithms and problems are all well and good, but
this is money.. ;-)
-P
_______________________________________________
OpenMoko community mailing list
community@lists.openmoko.org
http://lists.openmoko.org/mailman/listinfo/community
