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 1 
 on: Today at 04:07:41 PM 
Started by student24 - Last post by student24
Hello everybody,

I want to search words from documents. I use the operator Filter Tokens by content with regular expression. If I want to search more than one word I use word1|word2|...|wordn. Now my question is how can I search an expression where there is a whitespace? For example "Research and Development|Word2|Word3 etc. ". Is there any wildcard for whitespaces?

Thanks for your help

 2 
 on: Today at 04:03:28 PM 
Started by student24 - Last post by student24
Hello everybody,

I want to search words from documents. I use the operator Filter Tokens by content with regular expression. If I want to search more than one word I use word1|word2|...|wordn. Now my question is how can I search an expression where there is a whitespace? For example "Research and Development|Word2|Word3 etc. ". Is there any wildcard for whitespaces?

Thanks for your help

 3 
 on: Today at 03:05:16 PM 
Started by wujiang - Last post by wujiang
OK, Got it, Thank you very much! Grin

 4 
 on: Today at 02:46:41 PM 
Started by tatianiia - Last post by Marius
And if you want to migrate to the server later on - no problem, R also integrates perfectly with the RapidMiner Server! :-)

 5 
 on: Today at 02:40:46 PM 
Started by tatianiia - Last post by tatianiia
In case somebody can't use RapidMiner server for some reason - R extention for RapidMiner Studio works perfectly. And it is possible to create some nice wordclouds with it.

 6 
 on: Today at 02:18:33 PM 
Started by brian327 - Last post by brian327
Thank you Ralf for the clarification.

I am living in Seoul Korea.
I am planing to visit there for training and examination from May 19th to May 23rd.
I am wondering about your special price. Let me know how much is it.

Could you let me know how to reserve the training and the person in charge?

Thank you!

Brian Lee,

 7 
 on: Today at 01:41:06 PM 
Started by memvis70 - Last post by Marco Boeck
Hi,

you can do the following to retrieve the values for a column:
Code:
Attribute att = exampleSet.getAttributes().get(NAME_OF_ATTRIBUTE);
for (Example example : exampleSet) {
   example.getValue(att);
}

Regards,
Marco

 8 
 on: Today at 01:37:48 PM 
Started by wujiang - Last post by Marco Boeck
Hi,

as you can see in the Example.java class, not every operation from the parent class is supported. You can iterate over all values from an example via

Code:
for (Attribute att : example.getAttributes()) {
    System.out.println(example.getValue(att));
}

Regards,
Marco

 9 
 on: Today at 01:07:35 PM 
Started by wujiang - Last post by wujiang
Hi there

I have a project for add a operator to RM, Recently, I use the iterator for deal with 'example'. like:

  
Code:

public Reader(Example example) {
this.example = example.entrySet().iterator();
}

but once I execute my operator, a report of bug will be shown:

SEVERE: Process failed: operator cannot be executed (EntrySet is not supported by Example.). Check the log messages...
java.lang.UnsupportedOperationException: EntrySet is not supported by Example.

but, example is a type of Map<String, Object> ?

Could you help me?

Thanks a lot.

Jiang

 10 
 on: Today at 12:56:16 PM 
Started by ofigue - Last post by fras
Without showing what your are doing it is hard to give an advise.
Having an unbalanced dataset is indeed the normal case. Your success depends on the learning
scheme you apply and the performance criteria you consider.
And last but not least RapidMiner offers some kind of sampling operators that allow to re-balance.

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