Questions tagged as 'weka'

Tagged questions
2
answers

Mining Text with Weka

I would like to know how to create a .arff executable file to use in weka. I remember that I am mining text. My file is experiencing errors and I'm not getting results. Following is a piece of the file: @relation texto @attribute mes...
asked by 21.04.2015 / 22:50
2
answers

How to preprocess a text for the application in the Weka classification algorithms in Java?

I'm doing my CBT where the idea is roughly part of collecting tweets and training a machine learning algorithm to sort this data. As I would pre-process this tweet, the idea being to train a machine-learning algorithm with inputs, where it...
asked by 28.04.2014 / 15:57
2
answers

Weka not recognizing attribute in format "date"

I have a set of treatment and tests that I created with a program in Java. In the header, it looks like this: *@attribute data date "yyyy-MM-dd"* And among other attributes. An example of a row of data is: *@data "2014-01-02",11.27...
asked by 17.06.2015 / 22:09
0
answers

How the ranking algorithm works in combination with the Weka Information Gain

As I said in the title, I would like to know how they work together and what steps they follow if possible. Both are used together in Weka to generate a ranking of attributes in any database.     
asked by 28.06.2017 / 02:32
0
answers

Discovering classes for new entries from a training already done

Once the Weka has been trained, using J48 to classify, for example, how, from there (steps to be performed), apply the trained model on new input data, so that the classes of these inputs are generated by the trained system / model? @relation...
asked by 04.11.2014 / 14:30
1
answer

Argument when initializing the Weka

In the Weka download page there is a recommendation to initialize the .jar file of Weka with the following argument -Xmx1000M . But I did not understand what the argument will change in the time that the Weka runs. Since initialization w...
asked by 10.03.2015 / 14:57
1
answer

RNA training phase - Artificial Neural Network in Weka

I'm developing software that allows users to create new RNAs. When creating a new MultilayerPerceptron RNA in Weka, is the testing phase already performed by the lib routines or do you need to develop training routines separately?     
asked by 14.11.2017 / 23:20
1
answer

Problem with a stopwords list in weka

Hello, I have a problem that is as follows: I'm trying to apply a custom stopword list to a Weka filter and it's giving me the following error: ThelistisatxtfilethatIgotatthissite: link Can anyone help me solve this problem? Thank...
asked by 31.03.2017 / 08:38