Asp Forum - ruby classifier

Ryo Fojiba

3/28/2007 4:00:00 AM

I tried installing ruby classifier using
sudo gem install classifier
but when I try to use classifier I get

irb(main):001:0> require "classifier"
LoadError: no such file to load -- classifier
from (irb):1:in `require'
from (irb):1

What am I doing wrong? Thank you.

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6 Answers

Logan Capaldo

3/28/2007 4:09:00 AM

On 3/28/07, Ryo Fojiba <fojiba@gmail.com> wrote:
> I tried installing ruby classifier using
> sudo gem install classifier
> but when I try to use classifier I get
>
> irb(main):001:0> require "classifier"
> LoadError: no such file to load -- classifier
> from (irb):1:in `require'
> from (irb):1
>
> What am I doing wrong? Thank you.
>
Didja try
require 'rubygems'
require 'classifier'

?
> --
> Posted via http://www.ruby-....
>
>

Colin Brander

3/28/2007 5:15:00 AM

Ah, whoops, that part is fixed now. But when to add items to the LSI
classifier, I get:

>> lsi.add_item( "This is a turtle.", :turtle )
=> nil
>> lsi.add_item( "This is a cuckoo.", :cuckoo )
ArgumentError: wrong number of arguments (1 for 0)
from
/usr/local/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi/content_node.rb:37:in
`initialize'
...

i.e., I get these "wrong number of arguments" errors as soon as I try to
add more than one item.

Any idea about this?

Logan Capaldo wrote:
> On 3/28/07, Ryo Fojiba <fojiba@gmail.com> wrote:
>>
> Didja try
> require 'rubygems'
> require 'classifier'
>
> ?

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Dan Wade

4/7/2007 5:34:00 PM

I've spent a couple of days trying to get LSI Classifer to work. The
Bayesian library works fine (and is fun), but LSI is not working for me.
I have the GSL installed and the ruby-gsl wrapper, which seem to be
working fine. However, I get the same error as mentioned in the previous
post. The error occurs as the 2nd item is added to the index. It occurs
somewhere within the rebuild_index procedure. If auto_index is switched
off, items can be added infinitum. Please help :S

#--------test script

require 'rubygems'
require 'gsl'
require 'classifier'
require 'stemmer'

lsi = Classifier::LSI.new
strings = [ ["This text deals with dogs. Dogs.", :dog],
["This text involves dogs too. Dogs! ", :dog],
["This text revolves around cats. Cats.", :cat],
["This text also involves cats. Cats!", :cat],
["This text involves birds. Birds.",:bird ]]
strings.each {|x| lsi.add_item x.first, x.last}

lsi.search("dog", 3)
# returns => ["This text deals with dogs. Dogs.", "This text involves
dogs too
Dogs! ",
# "This text also involves cats. Cats!"]

lsi.find_related(strings[2], 2)
# returns => ["This text revolves around cats. Cats.", "This text also
involve
s cats. Cats!"]

lsi.classify "This text is also about dogs!"
# returns => :dog

#--------error

/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/extensions/string.rb:6:Warning:
require_gem is obsolete. Use gem instead.
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi/content_node.rb:37:in
`initialize': wrong number of arguments (1 for 0) (ArgumentError)
from
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi/content_node.rb:37:in
`new'
from
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi/content_node.rb:37:in
`raw_vector_with'
from
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi.rb:123:in
`build_index'
from
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi.rb:123:in
`collect'
from
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi.rb:123:in
`build_index'
from
/usr/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi.rb:65:in
`add_item'
from lsitest.rb:12
from lsitest.rb:12:in `each'
from lsitest.rb:12

Dan

Colin Brander wrote:
> Ah, whoops, that part is fixed now. But when to add items to the LSI
> classifier, I get:
>
>>> lsi.add_item( "This is a turtle.", :turtle )
> => nil
>>> lsi.add_item( "This is a cuckoo.", :cuckoo )
> ArgumentError: wrong number of arguments (1 for 0)
> from
> /usr/local/lib/ruby/gems/1.8/gems/classifier-1.3.0/lib/classifier/lsi/content_node.rb:37:in
> `initialize'
> ...
>
> i.e., I get these "wrong number of arguments" errors as soon as I try to
> add more than one item.
>
> Any idea about this?
>
>
> Logan Capaldo wrote:
>> On 3/28/07, Ryo Fojiba <fojiba@gmail.com> wrote:
>>>
>> Didja try
>> require 'rubygems'
>> require 'classifier'
>>
>> ?

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Cameron McBride

4/10/2007 6:53:00 PM

Dan and Colin,

The current version of Classifier's LSI is kind of broken. It was
half in development ages ago and for whatever reason the "stable"
version got merged with a half-working dev version. For a number of
reasons (which I'll omit), development stalled and it wasn't cleaned
up.

I wasn't involved directly with the main development of Classifier,
but I did have some involvement with some of the not-so-implemented
ideas. I've been extremely busy for a couple months, but sometime
soon I hope to smooth over some of the LSI issues to get it stable
again.

I'll look into the exact error you both are posting - if it's
something workaroundable I'll let you know.

Cameron

Dan Wade

4/10/2007 7:43:00 PM

Cameron McBride wrote:
> Dan and Colin,
>
> The current version of Classifier's LSI is kind of broken. It was
> half in development ages ago and for whatever reason the "stable"
> version got merged with a half-working dev version. For a number of
> reasons (which I'll omit), development stalled and it wasn't cleaned
> up.
>
> I wasn't involved directly with the main development of Classifier,
> but I did have some involvement with some of the not-so-implemented
> ideas. I've been extremely busy for a couple months, but sometime
> soon I hope to smooth over some of the LSI issues to get it stable
> again.
>
> I'll look into the exact error you both are posting - if it's
> something workaroundable I'll let you know.
>
> Cameron

Cameron, Thanks for your reply. I appreciate the difficulty in
maintaining these things, so thanks for any input you can provide. If I
find a fix, I'll post it here.

Regards
Dan

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comp.lang.ruby

ruby classifier

Ryo Fojiba

Logan Capaldo

Colin Brander

Dan Wade

Cameron McBride

Dan Wade

Kimberlee D. Maclean

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