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Data Science Q&A — (14) Sampling techniques for imbalanced data

Data Science Q&A — (14) Sampling techniques for imbalanced data

Q1. What is class imbalance in supervised learning?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data science Q&A — (13) Regularization

Data science Q&A — (13) Regularization

Q1. What is overfitting in machine learning, and why is it a problem?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data science Q&A — (12) Supervised learning primer

Data science Q&A — (12) Supervised learning primer

Q1. What is supervised learning, and can you name some common algorithms?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (11) Autoencoders

Data Science Q&A — (11) Autoencoders

Q1. What inspired the development of neural networks in artificial intelligence?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data science Q&A — (15) Representation Learning for Outlier Detection

Data science Q&A — (15) Representation Learning for Outlier Detection

Q1: What is the primary goal of feature engineering in anomaly detection in response to evolving anomalous patterns?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (10) CBLOF

Data Science Q&A — (10) CBLOF

Q1. What is the Cluster-Based Local Outlier Factor (CBLOF) and how does it work?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (9) LOF

Data Science Q&A — (9) LOF

Q1. What is the Local Outlier Factor (LOF) algorithm?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data science Q&A — (8) KNN

Data science Q&A — (8) KNN

Q1. What is the k-nearest Neighbors (KNN) algorithm?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (7) GMM

Data Science Q&A — (7) GMM

Q1 How does GMM differ from K-means in terms of cluster assignment
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (6) One-class SVM

Data Science Q&A — (6) One-class SVM

Q1. What is the primary use case for the One-Class Support Vector Machine (OC-SVM)?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (5) PCA

Data Science Q&A — (5) PCA

Q1. What is Principal Component Analysis (PCA) and why is it used?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (4) Isolation Forest

Data Science Q&A — (4) Isolation Forest

Q1. What is the fundamental intuition behind the Isolation Forest algorithm?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data science Q&A — (3) ECOD

Data science Q&A — (3) ECOD

Q1. What are parametric and non-parametric distributions? Provide an example of each.
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (2) HBOS

Data Science Q&A — (2) HBOS

Q1. What is the Histogram-Based Outlier Score (HBOS)?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Data Science Q&A — (1) Anomaly Detection

Data Science Q&A — (1) Anomaly Detection

Q1. What is an anomaly in data analysis?
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (X) Instructor’s manual

Handbook of Anomaly Detection — (X) Instructor’s manual

First, we would like to express our appreciation for you to choose this book as your course textbook. We trust this book can assist you…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (14) Sampling Techniques for Extremely Imbalanced Data

Handbook of Anomaly Detection — (14) Sampling Techniques for Extremely Imbalanced Data

In supervised learning, one of the most challenging issues practitioners encounter is the problem of extreme class imbalance. Class…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (13) Regularization

Handbook of Anomaly Detection — (13) Regularization

In the previous chapter, we have covered several key machine learning models including Random Forests, Gradient Boosting Machine (GBM)…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (12) Supervised Learning Primer

Handbook of Anomaly Detection — (12) Supervised Learning Primer

Supervised Learning is a type of machine learning where the algorithm is trained on labeled data. Linear regressions and decision trees…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (11) Autoencoders

Handbook of Anomaly Detection — (11) Autoencoders

Neural networks, also known as Deep Learning, have revolutionized the field of artificial intelligence and machine learning. They have…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (15) Representation Learning for Outlier Detection

Handbook of Anomaly Detection — (15) Representation Learning for Outlier Detection

In Chapter 1, we’ve mentioned the importance of feature engineering to discover new patterns, and the use of unsupervised learning…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (10) Cluster-Based Local Outlier Factor (CBLOF)

Handbook of Anomaly Detection — (10) Cluster-Based Local Outlier Factor (CBLOF)

Following our exploration of the Local Outlier Factor (LOF) in the previous Chapter, we now turn our attention to the Cluster-Based Local…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (9) Local Outlier Factor (LOF)

Handbook of Anomaly Detection — (9) Local Outlier Factor (LOF)

One day I was sitting on a rock on a beach and enjoying the sunset. There was a group of seagulls perched on a nearby rock. There was a…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (8) KNN

Handbook of Anomaly Detection — (8) KNN

The k-Nearest Neighbors algorithm, commonly known as KNN, is a simple and widely used algorithm in classification models, regressions, and…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
Handbook of Anomaly Detection — (7) GMM

Handbook of Anomaly Detection — (7) GMM

One of the most enchanting aspects of a camping trip for me is stargazing on a calm evening. As I gaze up at the night sky, I’m filled…
Go to the profile of Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman
Aug 24, 2024
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