Data Analytics & Business Intelligence

Keolive was founded with a simple objective: Continue reading on Medium »

Why the correlation coefficient you pick can quietly change the story your data tells Continue reading on Medium »

Why the correlation coefficient you pick can quietly change the story your data tells Continue reading on Medium »

Why the correlation coefficient you pick can quietly change the story your data tells Continue reading on Medium »

What I found reading a quantum machine learning paper closely, and why it matters for the field. Continue reading on Medium »

Your data pipeline passed last night. Continue reading on Medium »

Day 7 was about learning Pandas, the most popular Python library for handling tabular data Continue reading on Medium »

Database Industry Trends and Technical Observations Overview In a recent GBASE...

Most investors have heard of the Sharpe ratio. Fewer realize how much weight it actually carries behind the scenes, from how pension funds… Continue reading on

Most AI launches try to make language models look useful for everything. Google's TabFM goes after...

Before a ball was kicked in the knockout stage, our ELO + form + pedigree model put a number on all 16 Round of 32 matchups. It got 13… Continue reading on Data

When running A/B tests, one of the most important concepts you’ll come across in two-tailed hypothesis testing is lift rate. Continue reading on Medium »

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When a query becomes slow, the first instinct is often to add more CPU or increase memory. In...

Here's something nobody tells you when you start Power BI: the visuals are the easy part. You can...

Testing Donchian Channels on AAPL Continue reading on Medium »

A practical decision framework for identifying fact tables and dimension tables — plus exactly how to explain your reasoning when someone… Continue reading on M

A practical decision framework for identifying fact tables and dimension tables — plus exactly how to explain your reasoning when someone… Continue reading on M

Most Medallion tutorials quietly assume a batch world — a nightly job reads yesterday’s files and rebuilds a table. That model breaks the… Continue reading on M

3D Ribbon Charta Continue reading on Top Python Libraries »

3D Ribbon Charta Continue reading on Top Python Libraries »

3D Ribbon Charta Continue reading on Top Python Libraries »

Real-time data pipelines have become increasingly complex. A typical architecture involves an OLTP database, Change Data Capture (CDC), a… Continue reading on M

A field guide to what’s actually changing for analysts in 2026 — and what still can’t be automated. Continue reading on Medium »

A new way to explore finance on BondStats. Continue reading on Medium »

SQL Joins Explained with Real Examples Continue reading on Medium »

If you’ve ever pasted the output of summary(lm(...)) into a Slack message or a slide deck, you know the problem: coefficients, standard… Continue reading on Med

SQL (Structured Query Language) subqueries are a powerful way to retrieve and manipulate data from one query and use it within another… Continue reading on Medi

 Course Highlights Comprehensive Curriculum: Covers Data Science, ML, AI, Python, SQL, Power BI, and GenAI tools. Continue reading on Medium »

The biggest disruption isn’t that AI is replacing junior analysts — it’s quietly changing what “entry level” even means. Continue reading on Medium »

Abstention is often treated as apathy. The data tells a more serious story: democratic power is also shaped by the people who disappear… Continue reading on Med

AWS recently announced Amazon S3 Annotations, a feature that lets teams attach rich, searchable context such as summaries, classifications, compliance data, or

Introduction Integrating SQL databases with Power BI is one of the most effective and...

**Subtitle:** A hands-on guide to simulating real-world Data Engineering scenarios — from Python data generation to Power BI Direct Lake… Continue reading on Me

Looking at a spreadsheet containing hundreds of districts and dozens of demographic indicators rarely reveals meaningful patterns. Continue reading on Medium »

Looking at a spreadsheet containing hundreds of districts and dozens of demographic indicators rarely reveals meaningful patterns. Continue reading on Medium »

Everytime I used to see axis = 0 or axis = 1, I had to revise whole concept of rows and column. Continue reading on Medium »

Query one Apache Iceberg table from Trino, Spark, and DuckDB with the same snapshot model and honest trade-offs.

Introduction The S&P 500 and Nasdaq are two of the most widely followed indices in the...

SQL (Structured Query Language) is a fundamental tool for data professionals like data analysts and data scientists. While basic SQL… Continue reading on Medium

​Every day, we interact with incredibly complex machine learning systems without even realizing it. From the moment we wake up to the… Continue reading on Mediu

Discover how AI data integration automates data mapping, improves quality, and speeds up real-time insights Continue reading on Medium »

Discover the challenges faced by a data analyst in China, from tech decoupling to AI barriers, and learn why the decision to leave was essential for career grow

Log analysis techniques that uncover hidden bottlenecks and optimize database performance at scale Continue reading on Medium »

From Confusion to Clarity: Understanding Data Science Techniques ...

Scheduling strategies that optimize refresh efficiency for time-based aggregations and analytical workloads Continue reading on Medium »

Scheduling strategies that optimize refresh efficiency for time-based aggregations and analytical workloads Continue reading on Medium »

When you look at the current geopolitical and economic landscape, it is easy to assume that the ruling class has simply lost its mind. Continue reading on Mediu