Data Analytics & Business Intelligence

Improving Testing, Maintainability, and Consistency with Reusable Feature Definitions Continue reading on Medium »

How I used web scraping, AI, automation, and data enrichment to build a business prospecting system that worked 24/7 — and eventually… Continue reading on Pytho

When people think about data analysis, they often imagine beautiful dashboards, colorful charts, and sophisticated business metrics… Continue reading on Medium

Master A/B test sample size calculation including the relationship between baseline conversion rate, minimum detectable effect, and… Continue reading on Medium

Descriptive Statistics is a way to describe and summarize data. It helps us understand large amounts of data easily. Instead of looking at… Continue reading on

The lakehouse community spent this week arguing about versions, and the arguments mattered. Parquet...

• D A R S 4 Data Visualization Matplotlib · Seaborn Continue reading on Medium »

AI for Data Analysis: What Actually Works (And What's Just Demo Magic) Last month I...

Messy CSV exports are a tax on every data task: stray whitespace, duplicate rows, inconsistent...

 Building an End-to-End FMCG Sales & Inventory Dashboard: A business Analytics Journey Continue reading on Medium »

The Polymarket World Cup Winner market has processed $1.96 billion in trading volume, which makes it the largest prediction market event… Continue reading on Th

The true bottleneck was never the analysis. The post BI Is Dead, Long Live BI appeared first on Towards Data Science .

This article provides a detailed walkthrough on using Apache SeaTunnel 2.3.9 to perform full data synchronization from MySQL CDC to… Continue reading on Medium

Quando pensamos em análise de dados, muitas pessoas imaginam dashboards bonitos, gráficos coloridos e indicadores sofisticados. Porém… Continue reading on Mediu

Quando pensamos em análise de dados, muitas pessoas imaginam dashboards bonitos, gráficos coloridos e indicadores sofisticados. Porém… Continue reading on Mediu

How we built per-second video watch heatmaps using HyperLogLog sketches in Postgres, with mergeable

PARTNER CONTENT Your genomics pipeline is probably failing 30% of the time and you're paying for all of it

Today, we’re excited to announce two new capabilities that make Quick Sight dashboards even more expressive and business-aligned: sparklines and custom sort for

Release: datasette 1.0a33 This alpha is a significant step on the road to a stable 1.0, finally extending the ?_extra= pattern I introduced in Datasette 1.0a3 t

“If you torture the data enough, it will confess to anything.” — Ronald Coase Continue reading on Medium »

I learn, Backtest, improve and implement. Continue reading on Investor’s Handbook »

Build the five components every feature store needs, then see where AI changes the design.

In the previous article, we discussed Bivariate Analysis, and Detecting Skewness, Spread, and Strange Distributions where the goal was to… Continue reading on M

On the back of learning that America is denying entry to anyone who has been in either the Democratic Republic of Congo or Uganda within… Continue reading on Me

Just after Seattle enacted a one-year data center moratorium that some of Amazon's own employees pushed for, Amazon shared how much water its data centers use,

To understand life in America, we must understand how and when we die. In 2026, it’s not a pretty picture. U.S. health and care is worse than other nations and

In this blog we will be diving deep to concept of kurtosis along with difference with skewness . Continue reading on Medium »

Composite Correlation Network Heatmap Continue reading on Top Python Libraries »

Tabelas web são strings. Tudo é string. Mas quando você exporta para JSON ou SQL, você...

What if the infrastructure powering our digital lives could help solve some of the environmental challenges it currently creates? Continue reading on Medium »

African football has never lacked talent. What it has often lacked is infrastructure: structured data, scalable scouting systems, and… Continue reading on Mediu

The Problem We Can No Longer Ignore Continue reading on Medium »

Imagine tuning in to the opening kickoff of a World Cup match and seeing a player intentionally send the ball all the way down the pitch and right out of bounds

Most students choose a course by asking one question: Continue reading on Medium »

How simple plotting libraries help young engineers analyze velocity, altitude, and sensor data during atmospheric flight. Continue reading on Medium »

This article provides a detailed walkthrough on using Apache SeaTunnel 2.3.9 to perform full data...

In the previous article, I extended a small Python data quality ETL starter from validation and...

If you're storing analytics events, logs, or any append-only data as Parquet files in object storage,...

Pressure decay is the standard method for leak testing sealed pneumatic assemblies. Getting accurate...

Exporting Data from ClickHouse®: Formats, Methods, and Best Practices Data export is a...

Background DBT open whole new world of how data-transformation happen, DBT brings software...

A Rust Polars plugin for high-speed PII masking - RUT, CPF, cards, IBAN. Honest benchmarks vs pure-Python regex, air-gapped, GDPR-ready. MaskOps 2.0.

Introduction & Motivation Continue reading on Google Cloud - Community »

If you have ever tried to build a crypto app from scratch, you already know where the time goes. It...

Understand the difference between one-tailed and two-tailed hypothesis tests in A/B testing, when each is appropriate, and the simple… Continue reading on Mediu

A reproducible recipe: load 18M+ Polymarket price snapshots, label resolved markets, and backtest a favorite-longshot strategy in ~40 lines of pandas. With the

As part of my data analytics learning journey, I created the DACV0526 Cohort Sales Dashboard using Excel/Power BI. The goal was to… Continue reading on Medium »

Tools: Google Colab, Python, yfinance, pandas, NumPy, statsmodels, sklearn, matplotlib, seaborn Continue reading on Medium »