Hi, I have problem with my model in weka (j48 cross-validation) that many instances are classified wrong when it comes to the second class. Is there any way to improve it or rather not? I'm not an expert in weka. Thank you in advance. My output is above. In NaiveBayes it presents better but still TP Rate < 0.5 for the second class. NaiveByes weka
1
There are 1 answers
Related Questions in WEKA
- Rails 5.1: Passing in array to where query does not search across multiple values
- Configuration details for Rails API-only app with one or two full routes
- How to add a new resource type to Rails scaffolding generator?
- Rails 5.1 - ActiveRecord::RecordNotUnique.new wrong number of arguments
- How can I require a Yarn package in the Rails assets?
- bpmn-js with Rails 5.1 webpacker Cannot resolve module 'fs'
- Rails-ERD, Graphviz error. Other answers not working. "Saving diagram failed! Verify that Graphviz is installed and in your path, or use filetype=dot"
- syntax error ruby rspec testing
- The asset "logo.png" is not present in the asset pipeline
- Get 'Zone already loaded' error in Rails + webpack + angular 2 initial setup
Related Questions in NAIVEBAYES
- Rails 5.1: Passing in array to where query does not search across multiple values
- Configuration details for Rails API-only app with one or two full routes
- How to add a new resource type to Rails scaffolding generator?
- Rails 5.1 - ActiveRecord::RecordNotUnique.new wrong number of arguments
- How can I require a Yarn package in the Rails assets?
- bpmn-js with Rails 5.1 webpacker Cannot resolve module 'fs'
- Rails-ERD, Graphviz error. Other answers not working. "Saving diagram failed! Verify that Graphviz is installed and in your path, or use filetype=dot"
- syntax error ruby rspec testing
- The asset "logo.png" is not present in the asset pipeline
- Get 'Zone already loaded' error in Rails + webpack + angular 2 initial setup
Related Questions in J48
- Rails 5.1: Passing in array to where query does not search across multiple values
- Configuration details for Rails API-only app with one or two full routes
- How to add a new resource type to Rails scaffolding generator?
- Rails 5.1 - ActiveRecord::RecordNotUnique.new wrong number of arguments
- How can I require a Yarn package in the Rails assets?
- bpmn-js with Rails 5.1 webpacker Cannot resolve module 'fs'
- Rails-ERD, Graphviz error. Other answers not working. "Saving diagram failed! Verify that Graphviz is installed and in your path, or use filetype=dot"
- syntax error ruby rspec testing
- The asset "logo.png" is not present in the asset pipeline
- Get 'Zone already loaded' error in Rails + webpack + angular 2 initial setup
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
It is hard to reproduce your example with the given information. However the solution is probably to turn your classifiert into a cost sensitive classifier https://weka.wikispaces.com/CostSensitiveClassifier?responseToken=019a566fb2ce3b016b9c8c791c92e8e35
What it does it assigns a higher value to misclassifications of a certain class. In your case this would be the "True" class.
You can also simulate such an algorithm by oversampling your positive examples. This is, if you have
npositive examples you samplek*npositive example, while you keep your negative examples as they are. You could also simply double positive examples.