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# Moving RAG From Demo to Production on Databricks: A Developer-Focused Checklist

By Naveen Ayalla This article is adapted from my original post in the Databricks Community and is shared here for developers, data engineers, and GenA…

aiprogramminggpt3datascience
Dev.to Jun 8, 2026, 01:10 UTC
EN

There's No Good Programmatic Source for African Macro Data — So I Built One

If you've ever tried to get structured, current, programmatically accessible macroeconomic data for African countries, you've hit the same wall. Bloom…

webdevapifintechdatascience
Dev.to Jun 7, 2026, 21:59 UTC
EN

How to Become a Data Scientist in 2026

How I got here On principle, you will never catch me parading myself as a some sort of expert data scientist. Technically, that's what I do in my day …

aidatasciencemachinelearningdeeplearning
Dev.to Jun 7, 2026, 18:21 UTC
EN

How Excel Is Used in Real-World Data Analysis: My First Week Learning Excel

When I started learning Excel as part of my Data Science & Analytics course, I assumed it was just a tool for creating tables and performing basic…

analyticsbeginnersdatasciencemicrosoft
Dev.to Jun 7, 2026, 15:41 UTC
EN

The Journey Begins: Week 1 as an Aspiring Data Professional.

Introduction ‎Ladies and gentlemen, I believe in this era of social media, we have all come across content that encourages us to 'Awaken the beast wit…

beginnersdatascience
Dev.to Jun 7, 2026, 04:30 UTC
EN

I Built a Fraud Detection System That Catches 99.76% of Fraud — Here's Everything I Learned

There is a number that haunts every fraud detection engineer: 0.13% . That is the fraud rate in the PaySim dataset — 8,213 fraudulent transactions bur…

aipythondatasciencemachinelearning
Dev.to Jun 6, 2026, 14:58 UTC
EN

I built a data-contract validator in pure Python (no pandas, no PyYAML) and it caught a 30% revenue ghost

A few months ago I spent the better part of a day chasing a bug that turned out not to be a bug at all. A downstream dashboard showed revenue had jump…

pythondataengineeringdatascienceopensource
Dev.to Jun 6, 2026, 03:51 UTC
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Power BI Visual Monitoring: Automatically Detecting Broken Visuals in Power BI Reports

Key Use Cases Power BI Visual Monitoring can be used for: power bi visual monitoring power bi report visual monitoring visual regression testing for P…

programmingmonitoringdatascience
Dev.to Jun 5, 2026, 21:09 UTC
EN

Charting Twitch Chat Velocity: Hype Curve Analysis for Esports VODs

Quick answer: To measure Twitch chat hype or velocity, pull the full VOD chat using the twitch-vod-chat-archive Actor, load the rows into pandas, bin …

pythondatasciencedatavisualizationwebscraping
Dev.to Jun 5, 2026, 20:32 UTC
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Training a Twitch chat toxicity classifier on real VOD data at scale

Quick answer: Twitch has no public API for VOD chat replay. To build a Twitch toxicity classifier dataset you walk the internal VideoCommentsByOffsetO…

machinelearningpythonwebscrapingdatascience
Dev.to Jun 5, 2026, 20:32 UTC
EN

Data Engineer vs. Data Scientist: What's the Difference? (2026 Guide for Beginners)

If you're exploring a career in data, you've probably seen both titles everywhere — job boards, LinkedIn, bootcamp brochures. They both work with data…

datasciencedataengineeringbeginnerscareer
Dev.to Jun 5, 2026, 10:16 UTC
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Inside DolphinScheduler’s May 2026 Release: Better Failover, Stronger Security, and More Reliable Plugins

The May 2026 DolphinScheduler community update can be summarized with two keywords: stability and precision . On one hand, major stability risks such …

apachedolphinscheduleropensourcedatasciencedata
Dev.to Jun 5, 2026, 10:07 UTC
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Understanding Underfitting and Overfitting: An Introduction

Have you ever trained a model that performed beautifully on your training data but fell apart the moment it saw new data? Or perhaps you built somethi…

beginnersdatasciencemachinelearningtutorial
Dev.to Jun 5, 2026, 06:37 UTC
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LLM Fine-Tuning vs RAG: A Production Decision Framework for Engineering Teams

Key Takeaways Use RAG for knowledge retrieval, changing data, and rapid iteration. Use fine-tuning for style, format, narrow classification, and cost …

aillmopsmachinelearningdatascience
Dev.to Jun 4, 2026, 08:31 UTC
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Why Your LLM Agent Gives a Different P-Value Every Time (And What to Build Instead)

Hand the same paired before/after dataset (n = 25) to ChatGPT five times. Same prompt: "These are the same subjects measured before and after an inter…

pythonllmdatascienceopensource
Dev.to Jun 3, 2026, 06:34 UTC
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I Built an ML Bitcoin Trading Bot — Then Proved It Had No Edge.

A case study in building crypto trading infrastructure and, more importantly, testing it honestly — including when the honest answer is "no edge." Wha…

machinelearningpythondatascienceplaywright
Dev.to Jun 2, 2026, 17:21 UTC
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Data Product Manager Org Structure: Reporting Lines That Matter

This article was originally published on davidohnstad.com . I cross-post here to reach the Dev.to community. { " @context ": " https://schema.org ", "…

productivitycareerdatasciencemanagement
Dev.to Jun 1, 2026, 21:17 UTC
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The Power BI Developer Isn't Disappearing. AI in Power BI Is Transforming the Role.

AI can now build reports, write DAX, and query your data, and it's not just Copilot anymore. Here's what that actually means for your organisation, an…

aianalyticspowerfuldevsdatascience
Dev.to Jun 1, 2026, 16:22 UTC
EN

AI-Assisted Data Reconciliation at Scale: Patterns for Distributed Systems

In any sufficiently large distributed system, data reconciliation is the dark matter of engineering — invisible, pervasive, and holding everything tog…

aidistributedsystemsarchitecturedatascience
Dev.to Jun 1, 2026, 08:41 UTC
EN

A MOGONET-Style Multi-Omics Biomarker Pipeline: Why a Near-Random Graph Net Still Earns Its Place

TL;DR (Quick Answer) This is an honest engineering write-up of a MOGONET-style multi-omics consensus biomarker pipeline built as an internal R&D p…

machinelearningbioinformaticspythondatascience
Dev.to Jun 1, 2026, 07:25 UTC
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How to monitor a brand across 5 Chinese social platforms with Python in 2026 — the cross-platform dedup problem and how to handle it

You want to know how a brand is being talked about in China. The catch: the conversation isn't on one platform. It's split across Weibo (microblog), R…

chinawebscrapingpythondatascience
Dev.to May 31, 2026, 16:31 UTC
EN

Algorithmic Trading Pipelines

In This Article Four-Layer Pipeline Architecture WebSocket Ingestion with asyncio Anomaly Detection and Tick Validation The Circuit Breaker Pattern Si…

datasciencepythonprobabilitymath
Dev.to May 31, 2026, 05:46 UTC
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Detecting Adversary-in-the-Middle (T1557) with Data Science

Adversary-in-the-Middle (T1557) is how attackers get between hosts to capture credentials and relay authentication. On internal networks the usual too…

cybersecuritydatasciencenetworkingpython
Dev.to May 31, 2026, 04:39 UTC
EN

Detecting Ingress Tool Transfer (T1105) with Python

After initial access, attackers almost always need to pull more tooling onto the host: a beacon, a credential dumper, a tunneler. That step is Ingress…

cybersecuritydatasciencepythontutorial
Dev.to May 31, 2026, 04:39 UTC
EN

I Built CausalLens — A Free, Open-Source Causal Impact Calculator for Time Series (5 Methods, Zero Setup)

I want to show you a tool I just open-sourced. It's called CausalLens, and it answers one specific question that most analytics stacks get completely …

pythonopensourcedatasciencestatistics
Dev.to May 30, 2026, 16:20 UTC
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The 7 Best Reddit Scrapers in 2026 (Free & Paid, Tested)

Looking for the best way to scrape Reddit posts and comments in 2026? Here's an honest, hands-on comparison of the top Reddit scrapers — including the…

webscrapingapidatasciencepython
Dev.to May 30, 2026, 15:06 UTC
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nbwipers: Setup and Troubleshooting

What is nbwipers? nbwipers is a CLI tool that strips outputs and metadata from Jupyter notebooks before git commit. Written in Rust - faster than nbst…

datasciencegitrusttooling
Dev.to May 30, 2026, 00:43 UTC
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How China-focused funds turn Weibo into alt-data (Python, 2026)

If you run a China book — equities, FX, commodities, or just a macro tilt — you already know the problem: the official numbers are slow and the Englis…

pythonwebscrapingchinadatascience
Dev.to May 29, 2026, 22:17 UTC
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The Paradox of Democratized Software

Everyone can build it. Almost no one can afford to run it at scale. And the companies selling the picks and shovels are about to get undercut by the s…

aisoftwaredatasciencedatamoat
Dev.to May 29, 2026, 00:16 UTC
EN

⚚ I reverse-engineered my mobile operator's APK — then Hermes Agent wrote the executive report

This is a submission for the Hermes Agent Challenge : Write About Hermes Agent // Detect dark theme var iframe = document.getElementById('tweet-205969…

hermesagentchallengedevchallengeagentsdatascience
Dev.to May 28, 2026, 23:01 UTC

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