Machine Learning Basic Concept Notes

basic concept

Neural Network: NN Neural Network

Convolutional Neural Network: CNN Convolutional Neural Network

Recurrent Neural Networks: RNN Recurrent Neural Networks

Deep Neural Networks: DNN Deep Neural Networks

Natural Language Processing; NLP Natural Language Processing

Neuro-Linguistic Programming: NLP Neuro-Linguistic Programming)

Multi-layer neural network: MLP Multi-Layer Perceptron (one layer is called linear regression, many are MLP)

 

Three forms of gradient descent : http://www.cnblogs.com/maybe2030/p/5089753.html

Batch Gradient Descent: BGD Batch Gradient Descent

Stochastic Gradient Descent: SGD Stochastic Gradient Descent

Mini-batch gradient descent: MBGD Mini-batch Gradient Descent

Also: Momentum, Nesterov Momentum, AdaGrad, RMSProp, Adam  

http://blog.csdn.net/u014595019/article/details/52989301

 BP algorithm: The learning process consists of two processes of forward propagation of the signal and back propagation of the error. Because the training of the multi-layer feed-forward network often adopts the error back-propagation algorithm , people often refer to the multi-layer feed-forward network directly as the BP network. Error Back Propagation, error back propagation.

Data Set

Sample

Attribute Attribute Feature Feature

Feature Value Feature Value

The space spanned by features and samples:

Feature Space Feature Space Sample Space Sample Space Label Space Label Space

When the model is a classifier, the class space

Data set: Training Set Training Set Test Set Test Set Cross-Validation Set (CV Set)

Hypothesis space: where the model is mathematically applicable

Generalization: how well the model performs on unknown data

Datasets website: http://archive.ics.uci.edu/ml/datasets.html

Structural Risk Minimization: SRM Structural Risk Minization

The tradition is: Empirical Risk Minimization ERM Empirical Risk Minization

Three kinds of cross-validation: S-fold Cross validation (S-fold cross validation) Leave-one-out Cross Validation (Leave-one-out Cross Validation) Simple cross validation

Maximum Likelihood Estimate: ML Estimate Maximum Likelihood Estimate

Maximum Posterior Probability Estimation: MAP

Bayesian Decision Theory: Bayesian Decision Theory

Naive Bayes: Naive Bayes

Discrete Naive Bayes: MultinomialNB

Continuous Naive Bayes: GaussianNB

Mixed Naive Bayes: MergedNB

 

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