July 2013


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Hooman Homayoonfard <[log in to unmask]>
Reply To:
ECJ Evolutionary Computation Toolkit <[log in to unmask]>
Sat, 20 Jul 2013 02:34:20 +1000
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Thanks Sean. Yes I have just started using ECJ and it's greater than what I
have expected, actually superb and very well designed.
I have come back to read more about the framework itself: the overview,
class diagrams and other document to know how actually it works.

Thanks for your patience in answering my questions in details.


On Fri, Jul 19, 2013 at 11:25 PM, Sean Luke <[log in to unmask]> wrote:

> On Jul 17, 2013, at 7:24 PM, Hooman HOMAYOUNFARD wrote:
> > I am going to read a csv file including of the transactions for number
> of items and
> > find the frequent itemsets out using a genetic algorithm approach.
> > Well, as I found in the tutorials ECJ creates number of genomes and
> evaluate it
> > by an individual to find how the genome(s) is(are) fitted to the target
> individual.
> >
> > There are number of questions:
> >
> > 1- Is it possible to have number of individuals?
> Of course, this is the default.  Hooman, this question suggests that you
> are not very familiar with evolutionary computation methods.  This list is
> not for answering EC questions, but specifically discussing ECJ's
> implementation.
> > 2- if yes, then: How do the genomes should be evaluated with a number of
> > transactions (individuals) of the itemsets?
> ECJ is not a frequent itemset tool.  It is up to you to decide how to
> encode such things in your individuals.
> > 3- How I can change the output to print the most fitted genome in each
> > generation.
> Try setting   in your parameters.  See Section
> 3.7 of the manual.
> Sean

Hooman Homayoun Fard