Scientific Computing
Velocity Autocorrelation Function showing the signature negative region characteristic of liquid dynamics and the cage effect discovered by Rahman

Modernizing Rahman''s 1964 Argon Simulation

A digital restoration of Rahman’s seminal 1964 molecular dynamics paper using LAMMPS and a production-grade Python analysis pipeline featuring intelligent decorator-based caching, fully vectorized NumPy computations for O(N^2) operations, and modern tooling (uv, type hints, Makefile automation) transforming academic scripts into reproducible research toolkit.

Document Processing
Conceptual diagram of page stream segmentation sorting pages into documents

The Evolution of Page Stream Segmentation: Rules to LLMs

We trace the history of Page Stream Segmentation (PSS) through three eras (Heuristic, Encoder, and Decoder) and explain how privacy-preserving, localized LLMs enable true semantic processing.

Computational Social Science
NOMINATE spatial plot showing Senate vote on Balanced Budget Amendment (1995) with legislators positioned on liberal-conservative dimension

A Spatial Model for Legislative Roll Call Analysis

This paper introduces NOMINATE, a probabilistic spatial model that recovers metric coordinates for legislators and roll calls from nominal voting data, demonstrating that a single liberal-conservative dimension explains the vast majority of Congressional voting behavior.

Planetary Science
Orbital diagram showing chaotic planetary trajectories

Chaotic Evolution of the Solar System (1992)

Sussman and Wisdom’s 1992 study used the Supercomputer Toolkit and symplectic mapping to integrate the entire Solar System for 100 million years, confirming chaotic behavior with an exponential divergence timescale of ~4 million years and demonstrating that long-term planetary motion is fundamentally unpredictable.

Machine Learning Fundamentals
Diagram showing distributed representations with three pools of units (AGENT, RELATIONSHIP, PATIENT) connected via role/identity bindings

Distributed Representations: A Foundational Theory

Geoffrey Hinton’s seminal 1984 technical report that formally derives the efficiency of distributed representations (coarse coding) and demonstrates their properties of automatic generalization, content-addressability, and robustness to damage.

Computational Chemistry
Graph Perception for Chemical Structure OCR

Graph Perception for Chemical Structure OCR

This 1990 paper presents an early OCR pipeline for converting hand-drawn or printed chemical structures into connectivity tables. It introduces novel sweeping algorithms for graph perception and a matrix-based feature extraction method for character recognition.

Scientific Computing
Three-dimensional Brownian motion trajectory showing random walk behavior

Second-Order Langevin Equation for Field Simulations

Proposes the Hyperbolic Algorithm for Euclidean field theory simulations. By adding a second-order fictitious time derivative to the Langevin equation, the method reduces systematic errors to O(ε²) compared to the standard Langevin O(ε), enabling significantly faster autocorrelation times and more efficient simulations.

Computational Biology
Electron microscope image of Pyrolobus fumarii showing irregular coccoid cell structure

Three Domains of Life: Woese's Phylogenetic Revolution

This foundational paper established the three-domain classification system that transformed our understanding of evolutionary relationships, identifying Archaea as a separate domain of life based on molecular evidence from ribosomal RNA sequences.

Computational Chemistry
Delayed convolution approximation for distinct Van Hove function showing comparison between simulated data and theoretical model

Correlations in Motion of Atoms in Liquid Argon

This seminal work validated the use of classical Molecular Dynamics for simulating liquids, revealing the ‘cage effect’ in velocity autocorrelation and establishing the standard predictor-corrector integration algorithms for N-body problems.

Planetary Science
Venus as seen by Mariner 10, showing swirling cloud patterns in the dense atmosphere

Life on Venus? Astrobiology and Habitability Limits

A deep dive into the physical limits of life on Venus, reviewing Charles Cockell’s foundational 1999 analysis while connecting it to modern discoveries like the 2020 phosphine detection and upcoming DAVINCI+ missions.

Computational Chemistry
SELFIES molecular representation overview

SELFIES: The Original Paper (Krenn et al. 2020)

The 2020 paper that introduced SELFIES: how Mario Krenn and colleagues created a molecular representation that guarantees every generated string corresponds to a valid chemical structure.

Computational Chemistry
Benzene molecular structure diagram

SMILES: The Original Paper (Weininger 1988)

The 1988 paper that started it all: how David Weininger created SMILES notation to solve the problem of representing chemical structures as compact, human-readable strings.