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📰 Towards Data Science

313 articles · Updated every 3 hours · View all reads

All Articles 109,004Blog Posts 119,975Tech Tutorials 27,680Research Papers 22,428News 16,487 ⚡ AI Lessons
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 4d ago
Surviving the Data Science Behavioral Interview
In the age of AI, standing out here means a lot more than ever. Here are three tips to walk into your next interview with confidence. The post Surviving the Dat
Towards Data Science 💻 AI-Assisted Coding ⚡ AI Lesson 4d ago
How to Maximize Codex Exec Command
Build a more powerful coding agent setup with a model ensemble The post How to Maximize Codex Exec Command appeared first on Towards Data Science .
Towards Data Science 🧠 Large Language Models ⚡ AI Lesson 4d ago
Stop Choosing Between Local and Cloud LLMs: A Field Guide to Hybrid Patterns
A hands-on walkthrough of a hybrid local-cloud workflow using Gemma 4 and GPT-5.4, with reasoning and structured outputs The post Stop Choosing Between Local an
Towards Data Science 📐 ML Fundamentals ⚡ AI Lesson 5d ago
How Far Can Classical NLP Go? From Bag-of-Words to Stacking on Spooky Author Identification
An end-to-end classical NLP experiment on Kaggle’s Spooky Author Identification task: from Vowpal Wabbit and TF-IDF/NB-SVM baselines to a tuned stacked ensemble
Towards Data Science ✍️ Prompt Engineering ⚡ AI Lesson 5d ago
Prompt Engineering Fails Quietly —  Prompt Regression Is Why
Small prompt changes can silently break critical behavior in production. This article introduces a practical framework to detect hidden regressions before users
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 5d ago
I Completed Five Years in Analytics Consulting: 5 Lessons That Changed How I Work
The tools I use for analytics and reporting have changed more than I expected, yet my questions for any analytics project haven't moved much. The post I Complet
Towards Data Science 🧠 Large Language Models ⚡ AI Lesson 5d ago
How to Choose Between Small and Frontier Models
The rise of small language models The post How to Choose Between Small and Frontier Models appeared first on Towards Data Science .
Towards Data Science 🤖 AI Agents & Automation ⚡ AI Lesson 6d ago
Tail Control: The Counterintuitive Engineering of Reliable Agentic Workflows
Behind a customer's API, a high-quality answer isn't enough. It has to be usable, which means on time. Delivering that consistently is a problem about variance,
Towards Data Science 📐 ML Fundamentals ⚡ AI Lesson 6d ago
I Pitted XGBoost Against Logistic Regression on 358 Matches. The Boring Model Won.
A concrete bias–variance lesson: why the smallest model had the best cross-validated fit, and how to know when to reach for the big hammer. The post I Pitted XG
Towards Data Science ⚡ AI Lesson 1w ago
We Built a Routing Layer to Cut Our AI Costs. It Broke the Product.
A team cut their AI inference bill by more than half. Three months later, customer satisfaction was dropping and the cost savings were tied to the quality loss.
Towards Data Science 🧠 Large Language Models ⚡ AI Lesson 1w ago
How to Build a Powerful LLM Knowledge Base
Use coding agents to power your knowledge base The post How to Build a Powerful LLM Knowledge Base appeared first on Towards Data Science .
Towards Data Science 🧠 Large Language Models ⚡ AI Lesson 1w ago
From Local LLM to Tool-Using Agent
Using Gemma 4, Ollama, OpenAI Agents SDK, and Tavily MCP to build a lightweight research agent The post From Local LLM to Tool-Using Agent appeared first on Tow
Towards Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1w ago
Water Cooler Small Talk, Ep. 11: Overfitting in RAG evaluation
Why memorizing for the exam doesn't mean you understand the subject The post Water Cooler Small Talk, Ep. 11: Overfitting in RAG evaluation appeared first on To
Towards Data Science 🔍 RAG & Vector Search ⚡ AI Lesson 1w ago
Amplify the Expert: A Philosophy for Building Enterprise RAG
Enterprise Document Intelligence [Vol.1 #M1] - The thesis behind every architectural choice in this series The post Amplify the Expert: A Philosophy for Buildin
Towards Data Science 📐 ML Fundamentals ⚡ AI Lesson 1w ago
How to Ace Data and ML Behavioural Interviews
How to smash through data / ML behavioural interviews The post How to Ace Data and ML Behavioural Interviews appeared first on Towards Data Science .
Towards Data Science 🤖 AI Agents & Automation ⚡ AI Lesson 1w ago
Vector RAG Isn’t Enough — I Built a Context Graph Layer for Multi-Agent Memory
I benchmarked raw chat history, vector-only RAG, and a context graph on the same multi-agent conversations. The results exposed a surprising weakness in relatio
Towards Data Science 📐 ML Fundamentals ⚡ AI Lesson 1w ago
The Hot Path Belongs to GBDTs, Agents Own the Cold Path: A Payment-Fraud Benchmark
A reproducible benchmark on latency, cost, and reproducibility, and where agents actually earn their keep. The post The Hot Path Belongs to GBDTs, Agents Own th
Towards Data Science 📊 Data Analytics & Business Intelligence ⚡ AI Lesson 1w ago
Beyond the Straight Line: Choosing Between OLS, Interaction Terms, and Tweedie Regression
Whether you should stick to a classic Ordinary Least Squares regression, introduce interaction terms, or pivot to a Tweedie distribution depends entirely on how
Towards Data Science 🤖 AI Agents & Automation ⚡ AI Lesson 1w ago
3 Agents. 3 LLMs. 1 Aging GPU: Engineering Parallel Inference on Bare Metal
Beat the 8GB VRAM limit. Learn how to run three different LLMs on a single 8GB GPU using C++ layer multiplexing and admission control. The post 3 Agents. 3 LLMs
Towards Data Science 🧠 Large Language Models ⚡ AI Lesson 1w ago
Letting an LLM Pick the Right RAG Page: The Arbiter Pattern at the End of Retrieval
Enterprise Document Intelligence [Vol.1 #7C] - One LLM call ranks the candidates with reasons. The output is one typed object your auditor can defend The post L