The Machine Learning “Advent Calendar” Day 24: Transformers for Text in Excel
An intuitive, step-by-step look at how Transformers use self-attention to turn static word embeddings into contextual representations, illustrated with simple examples and an Excel-friendly walkthrough.
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Is Your Model Time-Blind? The Case for Cyclical Feature Encoding
How cyclical encoding improves machine learning prediction
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The Machine Learning “Advent Calendar” Day 23: CNN in Excel
A step-by-step 1D CNN for text, built in Excel, where every filter, weight, and decision is fully visible.
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Understanding the process behind agentic planning and task management in LangChain
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Stop Retraining Blindly: Use PSI to Build a Smarter Monitoring Pipeline
A data scientist's guide to population stability index (PSI)
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Synergy in Clicks: Harsanyi Dividends for E-Commerce
A brief overview of the math behind the Harsanyi Dividend and a real-world application in Streamlit
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The Machine Learning “Advent Calendar” Day 22: Embeddings in Excel
Understanding text embeddings through simple models and Excel
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ChatLLM Presents a Streamlined Solution to Addressing the Real Bottleneck in AI
For the last couple of years, a lot of the conversation around AI has revolved around a single, deceptively simple question: Which model is the best? But the next question was always, the best for what? The best for reasoning? Writing? Coding? Or maybe it’s the best for images, audio, or video? Tha...
What Happens When You Build an LLM Using Only 1s and 0s
An LLM that's 41× more efficient and 9× faster than today's standard models
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MCP is a key enabler into turning your LLM into an agent by providing it with tools to retrieve real-time information or perform actions.
In this deep dive we cover how MCP works, when to use it, and what to watch out for.
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Agentic AI Swarm Optimization using Artificial Bee Colonization (ABC)
Using Agentic AI prompts with the Artificial Bee Colony algorithm to enhance unsupervised clustering and optimization workflows.
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Six Lessons Learned Building RAG Systems in Production
Best practices for data quality, retrieval design, and evaluation in production RAG systems
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4 Ways to Supercharge Your Data Science Workflow with Google AI Studio
With concrete examples of using AI Studio Build mode to learn faster, prototype smarter, communicate clearer, and automate quicker.
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A Practical Toolkit for Time Series Anomaly Detection, Using Python
Here's how to detect point anomalies within each series, and identify anomalous signals across the whole bank
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The Machine Learning “Advent Calendar” Day 17: Neural Network Regressor in Excel
Neural networks often feel like black boxes. In this article, we build a neural network regressor from scratch using only Excel formulas. By making every step explicit, from forward propagation to backpropagation, we show how a neural network learns to approximate non-linear functions with just a ha...
Production-Grade Observability for AI Agents: A Minimal-Code, Configuration-First Approach
LLM-as-a-Judge, regression testing, and end-to-end traceability of multi-agent LLM systems
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3 Techniques to Effectively Utilize AI Agents for Coding
Learn how to be an effective engineer with coding agents
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The Machine Learning “Advent Calendar” Day 13: LASSO and Ridge Regression in Excel
Ridge and Lasso regression are often perceived as more complex versions of linear regression. In reality, the prediction model remains exactly the same. What changes is the training objective. By adding a penalty on the coefficients, regularization forces the model to choose more stable solutions, e...