The
itsy bitsy spider will crawl the Web
in search of pages which might interest
you. You tell the spider what type
of homepages you are interested in
by giving it URLs (http addresses)
to start from and it will surf the
Net for you by following links, looking
at those pages, and reporting back
on homepages of interest to you. Please
allow several minutes for the spider
to perform the real-time dynamic search.
The itsy bitsy spider begins with
the URLs you provide, along with some
randomly selected homepages. Then,
it follows the links on those pages
deeper and deeper. At each page the
spider will pause and compare it with
the original pages. Those pages which
are most similar to the original pages
you provided to the spider will get
a higher ranking. The ranking is used
to compute the probability for retention
from one iteration to the next. For
every iteration the spider will consult
a database of URLs and selectively
add new ones to look at, in hopes
that some new and pertinent links
will be found. The number of random
URLs added to the search is determined
by the mutation rate. The spider keeps
a list of the best pages found since
the start of the search and those
are displayed after each iteration.
The itsy bitsy spider performs a global
search of the Web as opposed to the
BFS spider which only searches the
local space.
Type the starting
URL(s) in the space provided. Enter
one or more keywords. Category selection
is optional. The time out and number
of URLs to be returned can be adjusted.
Press submit. The crossover and mutation
rates can be adjusted before the search
is started or while it is in progress.
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