Computational Social Science
Top features for Armed Forces and National Security policy classification showing veterans, defense, military keywords

Classifying Congressional Bills with Machine Learning

We test three ML models on 48K congressional bills to see how well they can predict policy areas from bill text. Results show logistic regression achieves 89% F1 score.

Computational Chemistry
Coulomb matrix heatmap visualization showing molecular structure encoding on logarithmic scale

Coulomb Matrices for Molecular Machine Learning

A practical introduction to Coulomb matrices: how they transform molecular 3D structures into ML features, complete with Python examples and honest assessment of their limitations.

Computational Social Science
Top features for Economics and Public Finance policy classification across Congresses

How Does Congress Actually Work? Data from 15K Bills

Only 2% of congressional bills become law. We analyze 15K bills from 2021-2023 to understand what drives legislative success and failure.

Scientific Computing
Molecular structure alignment showing protein conformations and RMSD calculation

Kabsch Algorithm: NumPy, PyTorch, TensorFlow, and JAX

Learn to align molecular structures and point clouds using the Kabsch algorithm, with differentiable implementations for modern ML frameworks.

Computational Chemistry
Ball model representation of a crystal surface with steps, kinks, adatoms, and vacancies showing various surface features

LAMMPS Tutorial: Copper and Platinum Adatom Diffusion

Step-by-step LAMMPS tutorial for simulating copper and platinum adatom diffusion. Learn surface dynamics simulation, trajectory analysis, and how atomic mass affects diffusion for machine learning datasets.

Computational Biology
Molecular visualization of a methionine dipeptide structure from MD simulation

Generating Mini-Protein Trajectories with GROMACS

A practical guide to simulating mini-proteins using GROMACS; from alanine dipeptide to tryptophan systems for ML training data generation.

Machine Learning Fundamentals
Vintage slot machine with multiple arms representing the multi-arm bandit problem in machine learning

5 Axes of Multi-Arm Bandit Problems: A Practical Guide

Key dimensions that have helped me understand multi-arm bandit problems: action space, problem structure, external information, reward mechanism, and learner feedback.

Machine Learning Fundamentals
NEAT genome encoding diagram showing node genes and connection genes with innovation numbers

A Guide to Neuroevolution: NEAT and HyperNEAT

Discover how NEAT and HyperNEAT changed neuroevolution by automatically designing neural network architectures and scaling them through geometric patterns.

Machine Learning Fundamentals
Diagram showing the three main types of machine learning: supervised, unsupervised, and reinforcement learning

Breaking Down Machine Learning for the Average Person

Understand the pattern recognition behind Netflix recommendations, email spam filters, and game-playing AI through three core machine learning approaches.

Machine Learning Fundamentals
Diagram illustrating knowledge-based agent architecture with knowledge base, reasoning, and action components

Foundations of AI: Knowledge-Based Agents and Logic

Explore the building blocks of classic AI reasoning, from knowledge bases and logic to how systems draw new conclusions from existing knowledge.

Natural Language Processing
Types and distribution of coreferences in QuAC dataset showing dialogue complexity

QuAC: Question Answering in Context Dataset

QuAC introduces a conversational QA dataset that models student-teacher interactions, creating context-dependent questions that test systems’ ability to understand dialogue and resolve references.

Natural Language Processing
Visualization of coreference resolution in the CoQA conversational question answering dataset

CoQA Dataset: Advancing Conversational Question Answering

CoQA extends question answering beyond isolated questions to conversations that require context and reference understanding.