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Course Outline

Introduction

This segment offers an overview of when to apply machine learning, key considerations, and the underlying concepts, including advantages and limitations. Topics include data types (structured/unstructured/static/streamed), data validity and volume, data-driven versus user-driven analytics, statistical versus machine learning models, challenges in unsupervised learning, the bias-variance trade-off, iteration and evaluation, cross-validation methods, and the distinctions between supervised, unsupervised, and reinforcement learning.

MAJOR TOPICS

1. Comprehending Naive Bayes

  • Core concepts of Bayesian methods
  • Probability
  • Joint probability
  • Conditional probability utilizing Bayes' theorem
  • The Naive Bayes algorithm
  • Naive Bayes classification
  • The Laplace estimator
  • Applying numeric features with Naive Bayes

2. Comprehending Decision Trees

  • Divide and conquer strategy
  • The C5.0 decision tree algorithm
  • Selecting the optimal split
  • Pruning the decision tree

3. Comprehending Neural Networks

  • From biological to artificial neurons
  • Activation functions
  • Network topology
  • Determining the number of layers
  • Direction of information flow
  • Node count per layer
  • Training neural networks via backpropagation
  • Deep Learning

4. Comprehending Support Vector Machines

  • Classification using hyperplanes
  • Identifying the maximum margin
  • Handling linearly separable data
  • Handling non-linearly separable data
  • Employing kernels for non-linear spaces

5. Comprehending Clustering

  • Clustering as a machine learning task
  • The k-means clustering algorithm
  • Utilizing distance to assign and update clusters
  • Determining the optimal number of clusters

6. Measuring Classification Performance

  • Handling classification prediction data
  • An in-depth look at confusion matrices
  • Using confusion matrices to assess performance
  • Beyond accuracy – other performance measures
  • The kappa statistic
  • Sensitivity and specificity
  • Precision and recall
  • The F-measure
  • Visualizing performance trade-offs
  • ROC curves
  • Estimating future performance
  • The holdout method
  • Cross-validation
  • Bootstrap sampling

7. Tuning Standard Models for Improved Performance

  • Using caret for automated parameter tuning
  • Constructing a simple tuned model
  • Customizing the tuning process
  • Enhancing model performance through meta-learning
  • Understanding ensembles
  • Bagging
  • Boosting
  • Random forests
  • Training random forests
  • Evaluating random forest performance

MINOR TOPICS

8. Comprehending Classification via Nearest Neighbors

  • The kNN algorithm
  • Calculating distance
  • Selecting an appropriate k
  • Preparing data for kNN usage
  • Why is the kNN algorithm considered lazy?

9. Comprehending Classification Rules

  • Separate and conquer approach
  • The One Rule algorithm
  • The RIPPER algorithm
  • Deriving rules from decision trees

10. Comprehending Regression

  • Simple linear regression
  • Ordinary least squares estimation
  • Correlations
  • Multiple linear regression

11. Comprehending Regression Trees and Model Trees

  • Incorporating regression into trees

12. Comprehending Association Rules

  • The Apriori algorithm for association rule learning
  • Measuring rule interest – support and confidence
  • Constructing a set of rules using the Apriori principle

Extras

  • Spark/PySpark/MLlib and Multi-armed bandits

Requirements

Knowledge of Python

 21 Hours

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