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Ensemble Learning: Aggregation Methods [ PART B ] Classifier Selection | Meta Learning / Classifiers 

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Selected topics in Artificial Intelligence & Data Science: Applied Machine Learning
+ Ensemble Learning [4]: Aggregation Methods (PART B) Classifier Selection | Meta Learning (Meta Classifiers) | Mixture of Experts | Stacked Generalization (Stacking) | Bucket of Models
+ Contents:
- Aggregation Methods (Combining Classifiers) [ PART B - Classifier Selection ]
- Meta Learning (Meta Classifiers)
- MoE: Mixture of Experts (Community of Experts)
- Bucket of Models
- Stacked Generalization (Stacking)
Lectures in PDF are available at the following link: drive.google.com/drive/folders/1louktnxxfUkwioalrMIATItwM3wztAce?usp=sharing
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Опубликовано:

 

10 июн 2021

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Комментарии : 4   
@xaaksw
@xaaksw 3 года назад
I am wondering if it is right to consider a bucket of models, not a real ensemble way, as it's not combining different classifiers to generate a strong one, it only selects the best among the weak models ... is it right to assume that ?
@xaaksw
@xaaksw 3 года назад
AS you said in the video , it does not go beyond the best base classifer performance , so we may consider this as a flaw?
@AmrSGhoneim
@AmrSGhoneim 3 года назад
Well, it’s not a flaw. Think of it that way, the basic aspects/aims of Ensemble Models are constructing multiple base learners, combining all/some of them in a way that increases the overall performance. A bucket-of-models constructs multiple base learners, yet it doesn’t combine them, it selects the best one that suits a specific dataset, also to improve the overall performance. So, it shares many (but not all) of the usual aspects/aims of traditional Ensemble Learning approaches.
@xaaksw
@xaaksw 3 года назад
@@AmrSGhoneim yess ! Thanks for this explanation 😍
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