👋 @pkoopongithub
🧩 Psychometrics · Open-Source Development · Algorithmic Research
🔍 Focus: Valid, reliable, and transparent psychometric tools · Algorithmic analysis of social interaction sequences
🌟 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).
🧠 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
⚠️ 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.
📬 Contact
