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Chris Kuo/Dr. Dataman
Chris Kuo/Dr. Dataman

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Published in Dataman in AI

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Anomaly Detection with PyOD!

(Revised on October 12, 2021) If you do anomaly detection, I recommend you to take a look of this great tool called the Python Outlier Detection (PyOD). …

Anomaly Detection

8 min read

Anomaly Detection with PyOD!
Anomaly Detection with PyOD!

Published in Dataman in AI

·Pinned

Explain Your Model with the SHAP Values

Better Interpretability Leads to Better Adoption Is your highly-trained model easy to understand? A sophisticated machine learning algorithm usually can produce accurate predictions, but its notorious “black box” nature does not help adoption at all. Think about this: If you ask me to swallow a black pill without telling me…

Machine Learning

13 min read

Explain Your Model with the SHAP Values
Explain Your Model with the SHAP Values

Pinned

Transfer Learning for Image Classification — (2) Pre-trained Image Models

Image classification is the task to recognize an image. It is also called image recognition. Computer scientists have been innovative in extracting meaning from images. Its history is fascinating, though most people don’t know much about it. For this reason, I like to describe the evolution of image classification. In…

Data Science

12 min read

Transfer Learning for Image Classification — (2) Pre-trained Image Models
Transfer Learning for Image Classification — (2) Pre-trained Image Models

Published in Dataman in AI

·Pinned

The SHAP Values with H2O Models

Many machine learning algorithms are complicated and not easy to understand, even though they have rendered impressive level of accuracy. As humans, we must be able to fully understand how decisions are being made so that we can trust the decisions of AI systems. We need ML models to function…

Data Science

9 min read

The SHAP Values with H2O Models
The SHAP Values with H2O Models

Published in Dataman in AI

·Pinned

Top Data Science Interview Questions and Answers

You receive a data science interview opportunity from your dream company. You have surveyed many the-top-50-question type of articles but still feel uncertain. Since there are already many similar articles, why do I dare to add an article to this crowded topic? In this article I re-write many ordinary answers…

Data Science

18 min read

Top Data Science Interview Questions and Answers
Top Data Science Interview Questions and Answers

Aug 7

Transfer Learning for Image Classification — (7) Fine-tune the Transfer Learning Model

~ “Practice makes perfect.” ~ In the previous chapter “Chapter 6: Build your transfer learning model”, we built a model for our special images. How can we improve the model performance? To get a better model performance, we can either add more data or work on the model itself (or…

Data Science

4 min read

Transfer Learning for Image Classification — (7) Fine-tune the Transfer Learning Model
Transfer Learning for Image Classification — (7) Fine-tune the Transfer Learning Model

Aug 7

Transfer Learning for Image Classification — (6) Build and Fine-tune the Transfer Learning Model

We are ready to apply the transfer learning technique. This chapter will show you how to get the core part from VGG-16 and build a new neural network. You will learn the procedure to build a transfer learning model. It is the same as building any neural network. I will…

Data Science

12 min read

Transfer Learning for Image Classification — (6) Build the Transfer Learning Model
Transfer Learning for Image Classification — (6) Build the Transfer Learning Model

Aug 7

Transfer Learning for Image Classification — (5) Get Image Data, Ready, and Go

Now you are about to apply transfer learning to build an image model. What’s your topic? Maybe your model is to recognize any international cuisines or any Lego Minifigures or any actors in movies. Here comes a very practical question: how do you obtain hundreds of images to start with…

Data Science

9 min read

Transfer Learning for Image Classification — (5) Get Image Data, Ready, and Go
Transfer Learning for Image Classification — (5) Get Image Data, Ready, and Go

Aug 7

Transfer Learning for Image Classification — (4) Understand VGG-16 Layer-by-Layer

VGG-16 made its name in the ImageNet Large Scale Visual Recognition Challenge (ILSVRC) in 2014, and continues to be used by many data scientists up to now. In this chapter I show you how to load the VGG-16 model and the ResNet model. I then show you how to pre-process…

Data Science

11 min read

Transfer Learning for Image Classification — (4) Understand VGG-16 Layer-by-Layer
Transfer Learning for Image Classification — (4) Understand VGG-16 Layer-by-Layer

Aug 7

Transfer Learning for Image Classification — (3) Let’s Understand a Convolutional Neural Network (CNN)

How does an algorithm see an image? How does an algorithm extract features from an image? In this chapter, I will start with the structure of image data for some of you who do not work with image data. I describe how a standard neural network classifies images of different…

Data Science

10 min read

Transfer Learning for Image Classification — (3) Let’s Understand a Convolutional Neural Network…
Transfer Learning for Image Classification — (3) Let’s Understand a Convolutional Neural Network…
Chris Kuo/Dr. Dataman

Chris Kuo/Dr. Dataman

The Dataman articles are my reflections on data science and teaching notes at Columbia University https://sps.columbia.edu/faculty/chris-kuo

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