DJC
Dennis J. Carroll

Apps & Projects

32 interactive applications and full-stack development projects.

Featured Projects

Bayesian Analysis of Airbnb Seattle Market

Enterprise-grade hierarchical Bayesian analytics platform for Airbnb pricing analysis with uncertainty quantification and interactive Streamlit dashboard.

PythonPyMCStreamlitBayesian Statistics

Personal Portfolio Website

This website - a modern, performant Gatsby site with React components, multiple themes, and 26+ standalone web applications.

ReactGatsbyTailwind CSSFramer Motion

repo-tester

GitHub repository safety scanner — detects malicious code patterns, supply chain risks, and repo health issues. Runs three parallel scanners: malicious pattern detection (obfuscation, backdoors, credential theft), supply chain analysis via OSV database, and repo health metrics. v2.0.1 on PyPI: pip install repo-tester.

PythonSecurityAST AnalysisOSV APIPyPICLI

32 projects found

AI/ML

FEATURED

Understanding Layer — Agent Trace Viewer

Interactive explorer for a real gpt-4.1 SWE-agent trace (46 events from MIRAGE-Bench). Phase-segmented timeline with type/actor filters, full-text search, a trace-analytics dashboard, per-event commentary, causal-chain highlighting, error-chain grouping, a guided tour, keyboard navigation, and dark/light themes — all framework-free static JS.

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FEATURED

Neural Network Theory Lab v2

Enhanced interactive laboratory for exploring neural network architectures, training dynamics, and theoretical foundations with improved visualizations.

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FEATURED

Edge AI Training Lab

Real-time neural network training with TensorFlow.js - train models in your browser with live loss curves, decision boundaries, and network visualization.

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Interactive RL Chaos-Error Optimization

Explore reinforcement learning with chaos theory and error optimization visualizations.

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Edge Sentinel

Edge computing monitoring and security dashboard for IoT and distributed systems.

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FEATURED

Mech Interp Viz

Interactive mechanistic interpretability visualization for transformer models. Annotate attention heads and MLP blocks, discover circuits, and export research findings. Built with Next.js + circuit discovery UI.

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FEATURED

Attn Flow

Browser-native attention flow visualizer — watch probability mass move through GPT-2's residual stream in real time. Particle simulation shows token competition at each layer, color-coded by token identity. Ported from a C terminal tool; no install required.

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FEATURED

The Frequency Prior Explorer

Interactive companion to the Frequency Prior research series. Walk the Resolution Ladder (attention heads → directions → SAE features), run simulated causal interventions built from real measured GPT-2 data, trace per-country logit-lens trajectories, and browse verified Paper 5 findings with plain-language explainers. React + Recharts.

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Data Science

Math

The Science of Convergence

Interactive exploration of universal scaling laws, Numerical Attractor Descent Curves (NADCs), and the mathematics of convergence in dynamical systems.

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FEATURED

Matrix Visualization Lab

3D linear algebra explorer with interactive matrix transformations, eigenvector visualization, and animated interpolation between transforms.

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Boolean Function Explorer

Interactive tool for analyzing Boolean algebra and logic gate operations.

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Sphere, Cylinder & Hypersphere Explorer

Interactive geometric visualization of spheres, cylinders, and hyperspheres in multiple dimensions.

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Voltic Pile Simulator

Interactive electrochemistry simulation exploring early battery design and electrical theory.

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FEATURED

Algebraic Flow

Interactive equation solver with Play-Doh math manipulatives, proof logging, and constellation backgrounds.

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FEATURED

Calculus Flow

Interactive calculus visualizer with 5 modes: Riemann sums (animate n→∞), tangent and secant lines, area under curves, Fundamental Theorem (Big Idea cinematic), and epsilon-delta limits. Intuitive tooltip layer throughout.

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Tools

FEATURED

repo-tester Security Scanner

Interactive TUI security dashboard for GitHub repositories. Enter any GitHub URL to scan for malicious code patterns, supply chain vulnerabilities, and repo health issues. Features boot sequence animation, findings table, severity bars, and contextual security insights.

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FEATURED

AST Protocol v2.0

Enhanced Python AST code explorer with cognitive complexity scoring, OWASP-aligned security scanning (SEC-001 through SEC-009), dead code detection, deprecated module warnings, and modernization hints. Runs in-browser via Pyodide — no install required.

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FEATURED

Writing Studio

Unified writing workspace: Prose Trainer and Flow Writer side-by-side. Warm up with genre drills, send your best passages directly into a scene, and analyze draft selections for fog, sensory density, and kinetic verbs — all without switching tabs.

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FEATURED

Prose Trainer

Genre-optimized writing practice with real-time analysis of readability, sensory balance, and kinetic density. Level up your prose with targeted feedback.

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FEATURED

Flow Writer

Narrative writing tool with story branching, timeline visualization, sprint engine, voice-to-text, AI assistant, and universe dashboard.

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Write Paradigm

Advanced writing assistant and content organization tool with structured composition features.

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© 2026 Dennis J. Carroll. All rights reserved.