What are the model integration technologies in Torch?

In Torch, there are several common model ensemble techniques that can be used to improve the performance and stability of models, including:

1. Bagging, also known as Bootstrap Aggregating, involves generating multiple submodels by sampling the training dataset with replacement, and then averaging or voting on the predictions of these submodels to obtain the final prediction result.
2. Boosting: Improve the performance of the model by sequentially training a series of weak classifiers and adjusting the weights of the training data set based on the performance of the previous classifier.
3. Stacking: Combining predictions from multiple models of different types as input features, followed by a meta-model (usually linear regression or logistic regression) for final prediction.
4. Random Forest: multiple decision trees are built by randomly selecting features and data subsets, and the final prediction is determined by voting.

These ensemble techniques can effectively enhance the generalization ability and robustness of models, often achieving better performance than single models across various types of machine learning tasks.