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pkoopongithub/README.md

👋 @pkoopongithub

🧩 Psychometrics · Open-Source Development · Algorithmic Research

🔍 Focus: Valid, reliable, and transparent psychometric tools · Algorithmic analysis of social interaction sequences


🌐 Portfolio

pkoopongithub.github.io — overview of my open-source research and development projects.
(Available in English and German.)


🌟 Düsseldorf Student Inventory (DÜSK)

An open-source personality inventory for transition-class students
📊 Valid · Reliable · Objective · Transparent

Since 2012, the Düsseldorf Student Inventory (DÜSK) has served as an open learning and research platform for:

  • Students in the social sciences
  • Trainees in market and social research
  • Developers and data analysts

Features

  • ✅ Full source code (PHP, MySQL, Xamarin, Lazarus, etc.)
  • ✅ Open raw data + SPSS/R data files
  • ✅ Cross-platform: Web · PC · Android · iOS
  • ✅ For research, teaching, and applied practice

📌 Collaboration invited
Joint development and distribution via app stores (Google Play, App Store, Amazon).

🔗 More information → mein-duesk.org


🧠 Algorithmic Recursive Sequence Analysis (ARS)

A rule-based method for causal inference using action grammars and graphs.

ARS 2.0 (2024)

Sales Dialogue Analysis & Grammar Induction

  • Optimized transition probabilities (Python)
  • Multi-Agent-System (MAS) integration
  • LLM-assisted category generation

Key Notebooks

ARS Archive (1994–)

  • Grammar tools (Lisp/Scheme)
  • Parser implementations (Pascal)
  • Original transcripts and audio (vkg1.mp3)

🔗 Explore the ARS Repository


🤝 Collaboration Opportunities

1️⃣ Düsseldorf Inventory Partnership

I provide:

  • Source versions (PHP, Xamarin, Android Studio, etc.)
  • Manuals and documentation

You handle:

  • Distribution via app stores or web servers
  • Revenue sharing agreement

2️⃣ Open-Source Contributions

Ways to collaborate:

  • Improve GUI design
  • Write tutorials (YouTube / technical documentation)
  • Expand calibration samples
  • Port software to new environments (Eclipse, NetBeans, etc.)

💬 Let’s collaborate on transparent, evidence-based psychometrics.


📜 Philosophical Foundation

ARS bridges

  • Karl Popper’s falsifiability principle
  • Ulrich Oevermann’s objective hermeneutics
  • Computational rigor (Bayes · Pearl · Chomsky)

“Unlike postmodern hermeneutics, ARS combines Lisp’s recursion, Python’s scalability, and R’s statistics to model social sequences as explainable graphs.”


🌍 Multilingual Summary

Click to expand

English: Seeking partners for open-source psychometric tools and ARS development.
Français: Recherche de collaborateurs pour des inventaires de personnalité open-source.
Español: Modelos de gramática accional para análisis de diálogos.
中文: 开源性心理测量工具开发合作。


🏛️ The Pompeii Project / Das Pompeji-Projekt

Trilogy Cover Image

⚠️ Attention, Boredom! / Achtung, Langeweile!

This trilogy is not for everyone …

  • no explosions or chase scenes
  • no heroes or villains
  • no confirmation of your worldview

🕊️ The Last Freedom / Die letzte Freiheit

A philosophical thought experiment disguised as a technical thriller —
about posthumanism, algorithms, and the future of democracy.

If you expect entertainment, you will be disappointed.
If you expect to think, you will be challenged.

“Every page demands your thinking – not just your excitement.”

The Last Freedom / Die letzte Freiheit
Your brain will not be spared. / Ihr Gehirn wird nicht verschont.

🔗 Project Page
🔗 Facebook


📬 Contact

Düsseldorf Inventory Screenshot

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