Junaid Qazi, PhD – Medium

Junaid Qazi, PhD

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Junaid Qazi, PhD

BC-1: Blockchain does matter to everyone, but why?

How blockchain will change the businesses and everything around us!

4 min readSep 18, 2022

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BC-1: Blockchain does matter to everyone, but why?

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Junaid Qazi, PhD

Surrender!

Well, we all can see what ChatGPT is bringing into our lives. For fun, I asked this remarkable AI to “write a poem on surrender” and here…

4 min readJan 15, 2023

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Surrender!

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Junaid Qazi, PhD

Separation!

by ChatGPT

1 min readJan 13, 2023

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Junaid Qazi, PhD

A47: Clustering — A complex multi-cluster dataset

K-means, Agglomerative, Silhouette Coefficient, Silhouette Score, Unsupervised Learning, Density-based clustering, DBSCAN, OPTICS

6 min readMay 27, 2022

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A47: Clustering — A complex multi-cluster dataset

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Junaid Qazi, PhD

A46: Evaluating Clustering Algorithm — Unsupervised Machine Learning

K-means, K-medoids, Agglomerative, Silhouette Coefficient, Silhouette Score, Unsupervised Learning, Clustering

5 min readMay 25, 2022

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A46: Evaluating Clustering Algorithm — Unsupervised Machine Learning

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Junaid Qazi, PhD

A45: Clustering — Unsupervised Machine Learning

k-means, k-medoids, Agglomerative — Hierarchical clustering, Dendrogram, DBSCAN, OPTICS

15 min readMay 20, 2022

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A45: Clustering — Unsupervised Machine Learning

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Junaid Qazi, PhD

A Danger Zone — Do you really want to miss what is missing!

Survivorship bias or survival bias

8 min readApr 30, 2022

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A Danger Zone — Do you really want to miss what is missing!

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Junaid Qazi, PhD

A44: Support Vector Machines (SVMs) vs Logistic Regression — Practice & Comparisons [complete…

A step-by-step tutorial to classify digits (MNIST), IRIS, and non-linearly separable data, gridsearch, cross-validation

9 min readMar 24, 2022

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A44: Support Vector Machines (SVMs) vs Logistic Regression — Practice & Comparisons [complete…

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Junaid Qazi, PhD

A43: Support Vector Machines (SVMs) — Hands-on [complete project with code]

Feature selection, chi-square, ANOVA, Grid-search, Random Search, feature scaling, ROC curve, Predicting Breast Cancer

20 min readMar 13, 2022

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A43: Support Vector Machines (SVMs) — Hands-on [complete project with code]

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Junaid Qazi, PhD

A42: Support Vector Machines (SVMs) [Behind The Scene!]

Maximum margin hyperplane, cross-entropy vs hinge loss, kernel trick, slack variables, norm, rbf kernel, origin of perceptron, regularizing…

14 min readMar 3, 2022

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A42: Support Vector Machines (SVMs) [Behind The Scene!]

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Junaid Qazi, PhD

Junaid Qazi, PhD

We offer professional development, corporate training, consulting, curriculum and content development in Data Science, Machine Learning and Blockchain.

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