Data Analytics & Business Intelligence

Introduction Modern analytical workloads often involve working with multi-valued and...

TL;DR Big data platforms like Snowflake and BigQuery impose high pricing floors, like...

A practical walkthrough of three matching approaches, a 30-character field limit nightmare, and the street-first strategy that actually… Continue reading on Med

Why one-hot encoding isn’t always the best approach, and alternative encodings The post Encoding Categorical Data for Outlier Detection appeared first on Toward

SQL queries are supposed to be logical, predictable, and clean. Humans are none of those things. Continue reading on Medium »

A deep-dive into Uber's three architectural generations — from a Vertica warehouse to a Hadoop data lake, to Apache Hudi — and the engineering decisions behind

Alina Krasavina explains how Delivery Hero successfully deprecated Google Analytics and migrated to an internal user tracking platform. She discusses how a simp

Let’s be honest: in the FMCG (Fast-Moving Consumer Goods) space, trade marketing budgets are almost...

It’s not about the code. It’s about the quiet war with your own frustration. Continue reading on Medium »

Behind every great brand is a story. But behind every great global brand is data — millions of data...

INTRODUCTION In the hype-fueled world of tech, data science is often painted as a futuristic...

Mined Google reviews of trades businesses. ended up finding found specific markets/ cities with genuine labor shortages Scraped conference booth buyers and noti

Most operators already have more data than their teams can realistically process.

Je hebt data op een website gevonden. Je hebt het in je database nodig. De workflow is meestal:...

Every week you delay is a week your competitors may be moving from observation to action while you're still debating what the chart means.

Most prediction-market datasets you find online are a one-time dump someone scraped, posted, and...

A Hands-On Python Guide to Extracting Clean Data Efficiently Continue reading on Data Engineer Things »

Why Are Highly Trained CPAs Still Doing Manual Data Entry? Continue reading on Medium »

Statistics is one of the most important parts of Data science. Many learners start with excitement. They think about charts, predictions… Continue reading on Me

The Hidden Skill Behind Every Good Data Decision Continue reading on Artificial Intelligence in Plain English »

How do you connect Excel to a databases with tens of millions of rows.. and GBs of data? Continue reading on Medium »

What happened when we borrowed a 1987 marketing model to find at-risk university students before they failed. Continue reading on Medium »

Vous avez trouvé des données sur un site web. Vous en avez besoin dans votre base de données. Le...

Before data reaches its final used destination it needs to be organized in a structured way to enable...

Here's a stat that'll surprise you: since 1930, host nations win the World Cup 26% of the time—nearly...

Introduction Data science is built on the ability to extract meaningful insights from...

In the previous article, we used scatter plots to explore relationships between variables. Continue reading on Medium »

In the previous article, we learned about three fundamental chart types: Continue reading on Medium »

In the previous article, we learned about three fundamental chart types: Continue reading on Medium »

In the previous article, we learned about three fundamental chart types: Continue reading on Medium »

You want data from a website. There’s no download button, no API, no CSV export, just a wall of HTML. This is exactly the problem that… Continue reading on Medi

Why You Should Stop Using Nested Loops for Data Mapping Nested loops are a common pitfall in software...

In today’s data-driven world, businesses rely on data to make smarter decisions, improve customer experiences, and drive growth. As a… Continue reading on Mediu

The psychology of visual data, the problem with angles, and why the minimalist waffle chart is the elegant solution you’ve been looking… Continue reading on Med

Welcome to this week's entering & transitioning thread! This thread is for any questions about getting started, studying, or transitioning into the data sci

CSV looks like the simplest file format there is. It isn't. A practical guide to delimiters, quoting, encoding, the Excel traps that destroy data, and how to pa

Membongkar tiga huruf ARIMA, lalu menambahkan “indra musim” lewat SARIMA, lengkap dengan perhitungan nyata untuk menentukan p, d, q. Continue reading on Medium

I cleaned every IPL delivery from 2008 to 2026 into one tidy ball-by-ball table — 295,732 rows — and...

In observational epidemiology, establishing a causal relationship between a risk factor (exposure) and a clinical outcome is notoriously… Continue reading on Me

Turning model coefficients into a 0–1000 score, with risk classes and stability checks Continue reading on Medium »

TL;DR: My FPV drone injured me. Instead of guessing what happened, I pulled the Blackbox flight data, cracked it open with Python, and let… Continue reading on

TL;DR: My FPV drone injured me. Instead of guessing what happened, I pulled the Blackbox flight data, cracked it open with Python, and let… Continue reading on

The explosive rise of data science has made one thing clear: everyone wants to build the next...

When I first started working with data, I was eager to jump straight into machine learning models and predictive analytics. Like many… Continue reading on Mediu

When I first started working with data, I was eager to jump straight into machine learning models and predictive analytics. Like many… Continue reading on Mediu

Whether you're brand new to Power BI or just getting started with data analytics, this guide walks...

I picked up a random dataset of amazon book sales of 10 years from kaggle and started exploring and...

Organizations spend millions of dollars building data science and machine learning capabilities. They...