Author

KoshurAI

@koshurai

articles: 49
total claps: 308
top claps: 170
avg read: 4.5 min
paywalled: 39
active: 2024-01-02 → 2026-05-04

Wiki topics

ML · Machine Learning · 18 LLM · Large Language Models · 15 🔬 · Science · General · 11 EDU · Education & Learning · 8 📐 · Mathematics · 8 RAG · RAG & Retrieval · 6 MM · Multimodal & Generative Media · 4 💑 · Relationships · 4

Top tags

#pearson-correlation ·4 #llamaindex ·3 #spearman-correlation ·3 #logit ·3 #distance-metric ·3 #spearman ·2 #correlation-vs-causation ·2 #correlation ·2 #relu ·2 #jina-ai ·2

AI LIF SCI

KO KoshurAI

Stop Using Pearson Correlation! Why Distance Correlation is the Ultimate Data Science Cheat Code 🚀

Pearson is lying to you. If you’re looking for non-linear relationships in your data, Distance Correlation is the superhero you’ve been…

May 04, 2026 · 5 min read · 170 claps paywalled #pearson-correlation #spearman-correlation #distance-correlation

Stop Using Pearson Correlation! Why Distance Correlation is the Ultimate Data Science Cheat Code 🚀

HUM AI TCH

KO KoshurAI

TabPFN 2.5: The Foundation Model That Beat XGBoost Without a Single Line of Tuning

8 min read · Machine Learning · Python · Tabular AI

Mar 13, 2026 · 6 min read · 62 claps paywalled #tabpfn-algorithm #tabpfn #transformers

TabPFN 2.5: The Foundation Model That Beat XGBoost Without a Single Line of Tuning

SCI

KO KoshurAI

PaddleOCR-VL-1.5:

If you’ve ever worked with PDFs, scanned documents, invoices, research papers, or messy real-world forms, you already know this painful…

Jan 30, 2026 · 4 min read · 28 claps paywalled #paddlepaddle #paddleocr #paddleocrpython

AI SCI

KO KoshurAI

🔥 Logistic Regression from A to Z: The Ultimate Guide You Wish You Read Earlier

“It’s not magic, it’s math. But damn, it feels like magic when predictions start hitting with 90%+ accuracy.”

Jun 23, 2025 · 3 min read · 7 claps paywalled #logistic-regression #log-reg #sigmoid-function

🔥 Logistic Regression from A to Z: The Ultimate Guide You Wish You Read Earlier

HUM AI SCI

KO KoshurAI · 𝐀𝐈 𝐦𝐨𝐧𝐤𝐬.𝐢𝐨

Stop Using Accuracy. Why the MCC Metric is the Only Metric You Need for Imbalanced Data.

The silent killer of your Machine Learning models (and how to stop it).

Jan 25, 2026 · 4 min read · 6 claps paywalled #data-science #machine-learning #matthews-correlation

Stop Using Accuracy. Why the MCC Metric is the Only Metric You Need for Imbalanced Data.

MKT SCI DSN

KO KoshurAI

Stop Guessing! The Ultimate Guide to A/B Testing in Python (With Real Code)

Don’t launch features based on gut feelings. Here is how to use Python and Statistics to make data-driven decisions that scale.

Jan 29, 2026 · 4 min read · 5 claps paywalled #ab-testing #z-test #python-ab-test

Stop Guessing! The Ultimate Guide to A/B Testing in Python (With Real Code)

AI TCH

KO KoshurAI · 𝐀𝐈 𝐦𝐨𝐧𝐤𝐬.𝐢𝐨

Introducing GPT-4.1: Open AI’s Biggest AI Leap Yet — Faster, Smarter, and Cheaper!

🚀 GPT-4.1 is here — and it’s a game-changer. OpenAI just dropped its most powerful AI model yet, with major upgrades in coding…

Apr 15, 2025 · 3 min read · 5 claps paywalled #gpt-4-1 #gpt-4 #gpt-5

Introducing GPT-4.1: Open AI’s Biggest AI Leap Yet — Faster, Smarter, and Cheaper!

KO KoshurAI

Title: Unraveling the Power of Box-Cox Transformation: A Statistical Elixir for Skewed Data

Introduction:

Jan 02, 2024 · 2 min read · 4 claps #box-cox #transformation #data-transformation

Title: Unraveling the Power of Box-Cox Transformation: A Statistical Elixir for Skewed Data

SOC SCI

KO KoshurAI

The Vengeful Gods of Statistics: How to Finally Understand Correlation vs. Causation

You’ve seen the headlines:

Oct 15, 2025 · 5 min read · 2 claps paywalled #correlation #correlation-vs-causation #pearson-correlation

The Vengeful Gods of Statistics: How to Finally Understand Correlation vs. Causation

KO KoshurAI · 𝐀𝐈 𝐦𝐨𝐧𝐤𝐬.𝐢𝐨

The Goldilocks Problem of AI: Bias Variance Trade-off

Ever feel like you’re stuck between two kinds of failure?

Oct 31, 2025 · 5 min read · 2 claps paywalled #bias-variance #bias-variance-tradeoff #bias

The Goldilocks Problem of AI: Bias Variance Trade-off

TCH

KO KoshurAI

📈 From 0 to Deployed: Build a Real-Time Stock Prediction Model in Python (2026 Edition)

How to go from a raw Jupyter Notebook to a live, revenue-generating web app using the modern ML stack.

Mar 11, 2026 · 5 min read · 2 claps paywalled #python-trading #quant-python #trading-with-python

📈 From 0 to Deployed: Build a Real-Time Stock Prediction Model in Python (2026 Edition)

HUM AI SCI

KO KoshurAI

Is Euclidean Enough as a Distance Metric?

In the world of data science and machine learning, one of the most fundamental tasks involves measuring the distance between data points…

Dec 22, 2024 · 4 min read · 2 claps #datascience-training #euclidean-distance #mahalanobis

Is Euclidean Enough as a Distance Metric?

KO KoshurAI

Demystifying Mahalanobis Distance: The Secret Weapon for Data Outliers

Introduction

Mar 31, 2024 · 3 min read · 2 claps #mahalanobis #euclidean-distance #pythondistance

Demystifying Mahalanobis Distance: The Secret Weapon for Data Outliers

KO KoshurAI

From Typos to Targets: Understanding Levenshtein Distance with a Real-World Example

Have you ever typed a search query into Google, made a horrible typo, and yet the search engine magically knew exactly what you meant?

Feb 17, 2026 · 3 min read · 2 claps paywalled #distance-metric #levenshtein-distance #levenstien

AI LIF SCI

KO KoshurAI

📈 Q-Q Plot Explained: How to Check Normality in Your Data Like a Pro (with Python Code)

Most people just run .hist() and assume. But real data science starts when you learn to test your assumptions. — Someone who loves stats

Jun 20, 2025 · 3 min read · 2 claps paywalled #qq-plot #quantile-quantile #normal-distribution

📈 Q-Q Plot Explained: How to Check Normality in Your Data Like a Pro (with Python Code)

KO KoshurAI

RAG vs Fine-Tuning in 2026: Which One Should You Actually Use?

The debate is mostly settled. Here’s the honest answer — with a decision framework, real trade-offs, and the one mental model that makes it…

Mar 11, 2026 · 8 min read · 1 claps paywalled #nlp #rags #rag-finetuning

MDA AI SCI LIF

KO KoshurAI

Cosine Similarity: The Secret Sauce Behind Search Engines, ChatGPT, and Recommendations

Dive deep into Cosine Similarity! Learn how this powerful metric powers Google, AI, and Netflix. I will explain the math, the logic, and…

Jan 02, 2026 · 6 min read · 1 claps paywalled #cosine-similarity #sklearn-distance #distance-metric

Cosine Similarity: The Secret Sauce Behind Search Engines, ChatGPT, and Recommendations

SCI TCH

KO KoshurAI

The Sigmoid Function: The Elegant Curve That Powered a Revolution

In the world of mathematics and computer science, some functions stand out not just for their utility, but for their elegance. The sigmoid…

Dec 02, 2025 · 6 min read · 1 claps paywalled #sigmoid #sigmoid-function #logistic-function

The Sigmoid Function: The Elegant Curve That Powered a Revolution

KO KoshurAI

Outlier Anatomy 101: Why Your Model is Bleeding Accuracy (And How to Fix It in Python)

Stop deleting outliers blindly. You might be killing your best data points.

Mar 10, 2026 · 4 min read · 1 claps paywalled #outliers #handling-outliers #iqr

Outlier Anatomy 101: Why Your Model is Bleeding Accuracy (And How to Fix It in Python)

KO KoshurAI

Hackers Can Now Hijack Your AI With Prompt Injection — Here’s How to Protect Yourself in 2025

Prompt injection is the #1 AI security threat in 2025. Learn how hackers hijack ChatGPT, Gemini & LLMs — and how to defend against it.

Aug 25, 2025 · 4 min read · 1 claps paywalled #llm-injection #prompt-injection #llm-prompt-injection

Hackers Can Now Hijack Your AI With Prompt Injection — Here’s How to Protect Yourself in 2025

LIF

KO KoshurAI

Understanding Spearman Correlation: Formula, Usage, and Implementation in Python

Correlation is a fundamental statistical concept used to measure the strength and direction of the relationship between two variables…

Mar 20, 2024 · 2 min read · 1 claps #spearman-correlation #pearsonspearman #pearson-correlation

Understanding Spearman Correlation: Formula, Usage, and Implementation in Python

KO KoshurAI

🚀 I Tried Apple’s FastVLM — Here’s How You Can Run It in Just a Few Lines of Code

Spoiler: It’s insanely fast. Think “real-time VLMs on your laptop fast.”

Aug 30, 2025 · 2 min read · 1 claps paywalled #fastvlm #vlm #apple-ai

🚀 I Tried Apple’s FastVLM — Here’s How You Can Run It in Just a Few Lines of Code

AI LIF SCI

KO KoshurAI

Your Data Science Workflow Is Already Obsolete — Here’s How Agentic AI Changes Everything in 2026

A no-hype, hands-on guide for data scientists who want to stop babysitting pipelines and start building autonomous systems that work while…

Mar 15, 2026 · 13 min read · 0 claps paywalled #langchain #llamaindex #rags

ECO GEN AI SCI

KO KoshurAI

The Data Science Job Market in 2026: What 700+ Job Postings Tell Us

I dug through the data so you don’t have to. Here’s what’s actually happening — the salaries, the skills, the brutal truths, and the exact…

Mar 12, 2026 · 13 min read · 0 claps paywalled #data-science-job #ai-job-market #ai-jobs

The Data Science Job Market in 2026: What 700+ Job Postings Tell Us

KO KoshurAI

Python vs SQL for Data Analysis in 2026 — A Data Scientist’s Honest Take

After 5 years of using both daily, here’s the unfiltered truth: when to use which, side-by-side code for every major task, the new tools…

Mar 14, 2026 · 13 min read · 0 claps paywalled #duckdb #python #sql