Data Analytics & Business Intelligence

Hello SeaTunnel community! Continue reading on Medium »

Uncovering payment behaviour, regional trends, and product performance from Nigerian retail sales data Continue reading on Medium »

Understanding entropy through surprise, probability, and uncertainty. Continue reading on Medium »

GBase 8a fully supports OLAP window functions, making it a powerful gbase database for analytical...

When people first start learning ClickHouse®, they usually focus on SQL queries, table engines, and...

Lower compute spend by optimizing queries: clustering keys, materialized views, predicate pushdown and scan reduction for Snowflake, BigQuery, Redshif

US unemployment is 4.3%. The curve even looks like it is calming down. The data underneath says otherwise. 2 million Americans have now… Continue reading on Med

There is no modern playbook for this. US core inflation — the gauge the Fed targets at 2% — is at 3.3% and re-accelerating. Outside Covid… Continue reading on M

apache pulsar vs kafka is the messaging question that every senior data engineer has answered twice...

kafka connect looks like "just another Kafka client" to a junior engineer — senior engineers know it...

This is my job search framework, the approach I follow every time I look for a new job. I want to cover mindset, preparation, finding jobs and applying, plus th

Introduction This week, I started learning Data Engineering concepts, and one of the most important...

David Ohnstad explains why federated data architectures create accountability gaps for PMs. Learn how schema enforcement and governance prevent revenue att

David Ohnstad reveals why data product managers struggle in federated architectures. Learn how organizational design undermines governance and trust in dec

Union-Find is fast, but it breaks for real-world entity resolution because it cannot handle safeguards, reversals, or ambiguous matches. A weighted graph approa

Monitoring is one of the most critical aspects of operating any production database environment. As...

Most dynasty fantasy football value sources are either crowdsourced votes or locked behind paywalls....

In a world where information changes by the minute, businesses need more than just access to data — they need access to the right data at… Continue reading on M

Missing data is a common problem in Data Science and can affect the accuracy and reliability of analysis and machine learning models… Continue reading on Medium

Architecture · Internals · Join Strategies · Catalyst & Tungsten · AQE · Memory Management · Performance Tuning · Spark 4.0 Continue reading on Medium »

A build-in-public failure story about why marketplace scrapers need state, sold signals, seller context, condition, and price history instead of only clean prod

A practical checklist for making marketplace scrapers safer: sold state, disappearance, seller country, condition, precision filters, price history, and review

As a financial analyst with a decade of experience, I see founders confuse revenue with profit every single day. Revenue is vanity, profit… Continue reading on

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,