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kandi X-RAY | RankLib Summary
kandi X-RAY | RankLib Summary
Fork of https://sourceforge.net/p/lemur/code/HEAD/tree/RankLib/
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Top functions reviewed by kandi - BETA
- Main entry point
- Evaluates the scoring algorithm
- Ranks the training data
- Evaluate performance on all models
- Normalizes the ZScoreNormalizor
- Normalizes the mean and variance of a given rank
- Performs training
- Gets the distance between two vectors
- Initialize the training data
- Reorder the scores
- Load the features from a string
- Replace the changes in the RRULE with the same rank
- Loads the weights from a string
- Train the learners
- Estimate the Loss loss
- Gunzip file
- Load an ensemble from a string
- Learns the training
- Main training algorithm
- Loads the network from a string
- Package - private for testing
- Assigns the number of relevant documents in a rank list
- Parse a line of text into a dense array
- Loads an external relevance decision from a file
- Swap the change in a ranked list
- Train training data
RankLib Key Features
RankLib Examples and Code Snippets
Community Discussions
Trending Discussions on RankLib
QUESTION
Using ranklib's learning to rank random forests generates an xml-like model. Ranklib has a tool that provides features' frequency which cannot necessarily be considered as feature importance.
How can I get the Gini feature importance or Gini index of random forests generated by ranklib? How to parse the tree generated?
Found in the Sourceforge discussion forum that you need to parse the model file yourself.
...ANSWER
Answered 2021-Feb-19 at 04:47I, personally, had a lot of struggles to get the Gini importance of features from a ranklib random forest and finally succeeded. Here I share the Github repository I made to solve the problem.
You can do it by running this command (use python3):
python Gini.py
Please see the repository for more details on how to do it.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install RankLib
You can use RankLib like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the RankLib component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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