Re: Problem setting up GroupLens

[Jud <ne...@gmail.com>]

Lance Norskog <goksron <at> gmail.com> writes:

> 
> Try more memory. I had problems with the 1M Grouplens set and Slope1.
> 
> You might also try the first N lines of the rating.dat file. "head
> -50000 < rating.dat > mini.dat" will give you a smaller dataset.
> 
> It would be great to have a tool that isolates a heavily connected
> subgraph of users & ids.
> 

Hey Lance and thank you very much for this information.

After days and nights of doing anything anyone could think of....inc.:
Swapfiles...
Swapfile manager
Reinstall
Java Heap size...
Installing Eclipse for manging Java Heap size
Trying Mahout-0.4, mahout-0.2 etc...
Reading endless articles about this problem....

LANCE IS RIGHT!!!!

Owen - pay attention....! :-)

Lance thanx again...

Jud.

Re: Problem setting up GroupLens

[Lance Norskog <go...@gmail.com>]

It's the combination of the 1M dataset and the Slope1 using the
MemoryDiffStorage structure- MemoryDiffStorage seems to be in general
a space-eater. Look at the javadoc for it: 'maxEntries' lets you trade
space for item-item accuracy.

Lance

On Sat, Jan 1, 2011 at 11:46 AM, Jud <ne...@gmail.com> wrote:
> Lance Norskog <goksron <at> gmail.com> writes:
>
>>
>> Try more memory. I had problems with the 1M Grouplens set and Slope1.
>>
>> You might also try the first N lines of the rating.dat file. "head
>> -50000 < rating.dat > mini.dat" will give you a smaller dataset.
>>
>> It would be great to have a tool that isolates a heavily connected
>> subgraph of users & ids.
>>
>
> Hey Lance and thank you very much for this information.
>
> After days and nights of doing anything anyone could think of....inc.:
> Swapfiles...
> Swapfile manager
> Reinstall
> Java Heap size...
> Installing Eclipse for manging Java Heap size
> Trying Mahout-0.4, mahout-0.2 etc...
> Reading endless articles about this problem....
>
> LANCE IS RIGHT!!!!
>
> Owen - pay attention....! :-)
>
> Lance thanx again...
>
> Jud.
>
>



-- 
Lance Norskog
goksron@gmail.com