Hello,
Could you try re-running FP-Growth with the '-2' flag, and let us know
if you have more success?
This uses an alternate implementation of the FPGrowth algorithm; I have
had problems similar to what you are seeing when using the default
implementation.
I am skeptical of the change yo
> mapreduce methods) on a 48GB boxes. Am I doing something wrong? Should it
>> be minutes instead of seconds?
>> --
>> Alex K
>>
>> On Mon, Dec 5, 2011 at 12:50 PM, Isabel Drost wrote:
>>
>>> On 02.12.2011 Tom Pierce wrote:
>>>> These progr
Hi Jens,
Is it neccessary to use itemsets with equal length?
No - fixed size itemsets are not required.
Is it possible to use itemsets with duplicates in mahout FPGrowth?
Not reliably. This crash looks like it caused by having more items in
one particular itemset than in the set of items
here a way for me to get all the patterns with support
> strictly greater then a particular value?
>
> Thanks
> Gaurav
>
> On Mon, Dec 19, 2011 at 4:58 PM, Tom Pierce wrote:
>
>> One possible explanation is that Mahout's FPG avoids reporting
>> patterns that are subs
One possible explanation is that Mahout's FPG avoids reporting
patterns that are subsumed by others.
For example, if you have pattern [a, b, c] with support 3, you clearly
must also have [a, b], [b, c] and [a, c] with support >= 3. Mahout
will not report any of those unless the support is strictl
Hi,
I've run into the same or a similar error; I've filed MAHOUT-911 with
a set of Wikipedia categories you can use to trigger this condition
using the Wikipedia/NaiveBayes example recipe (classifier application
fails in either mapreduce or sequential mode).
-tom
On Wed, Nov 16, 2011 at 7:51 AM,
These programs are actually exposed though the main mahout program; if you run:
$MAHOUT_HOME/bin/mahout fpg
it will run the Frequent Pattern Growth algorithm (aka frequent itemset mining).
Running the command above will show you what parameters are
required/available, including a switch to run i
