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Sales-Choice-Volunteering-Project / EmotionAnalyzerWeka

The program for obtaining emotion data
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Weka -- Install package GridSearch #45

Closed sherlockliang888 closed 3 years ago

sherlockliang888 commented 3 years ago

Backup the weka folders and install a new package. If anything goes wrong, replace the folders with backup.

sherlockliang888 commented 3 years ago

weka.classifiers.meta.MultiSearch is also installed. It can optimize N parameters, which can be numeric or nominal; offers random search in addition to grid search.

GridSearch, and MultiSearch in grid search mode, both perform an initial search with a performance estimator that runs quite quickly (two-fold CV by default) and then perform a more precise second search around the initial optimum using another performance estimator. MultiSearch is very useful in hyperparameter tuning but it takes a long time to find the best ones.

sherlockliang888 commented 3 years ago

Doesn't work well with the Purolator data, the result from MultiSearch with the identical parameters from LibSVM is around 50%. Further investigation is needed.

sherlockliang888 commented 3 years ago
  1. Write down the full parameter names instead of abbreviations;
  2. Choose accuracy for evaluation metric