Learning Graph Quality Metrics Report
Overview
- Total Concepts: 140
- Foundational Concepts (no prerequisites, other concepts depend on them): 11
- Terminal Nodes (nothing depends on them, but have prerequisites): 56
- Orphaned Nodes (completely disconnected, no edges): 0
- Concepts with Dependencies: 129
- Average Dependencies per Concept: 1.66
Graph Structure Validation
- Valid DAG Structure: ✅ Yes
- Self-Dependencies: None detected ✅
- Cycles Detected: 0
Foundational Concepts
These concepts have no prerequisites:
- 1: Mythical Beast
- 13: Satire
- 23: Venture Capital
- 25: Magical Thinking
- 29: Taxonomy
- 39: Artificial Intelligence
- 53: Hype Cycle
- 73: Digital Literacy
- 120: Graphic Novel
- 127: Critical Thinking
- 136: Interactive Simulation
Dependency Chain Analysis
- Maximum Dependency Chain Length: 10
Longest Learning Path:
- Mythical Beast (ID: 1)
- Unicorn (ID: 2)
- Unicorn Startup Metaphor (ID: 21)
- Startup Mythology (ID: 67)
- Disruption Narrative (ID: 68)
- Workforce Disruption (ID: 87)
- Skill Obsolescence (ID: 88)
- Reskilling (ID: 89)
- Upskilling (ID: 90)
- Coding Bootcamp Myth (ID: 97)
Terminal Nodes Analysis
Terminal nodes are concepts that nothing else depends on but have prerequisites. They represent natural endpoints of learning paths — culminating or specialized concepts.
- Total Terminal Nodes: 56 (40.0% of all concepts)
- Healthy Range: 5-40% of total concepts
Concepts at the end of learning paths:
- 3: Dragon
- 4: Phoenix
- 5: Griffin
- 7: Mermaid
- 8: Minotaur
- 9: Pegasus
- 10: Kraken
- 11: Siren
- 12: Cyclops
- 27: Mythical Product-Market Fit
- 28: Unicorn Literacy
- 32: Mythical vs Real Creatures
- 35: Symbolic Representation
- 38: Bestiary Tradition
- 43: AI Hallucination
- 44: Neural Network
- 46: AI Training Data
- 49: Chatbot
- 57: Plateau of Productivity
- 62: AI Washing
...and 36 more
Orphaned Nodes Analysis
Orphaned nodes are completely disconnected concepts with no inbound AND no outbound edges. These indicate a quality problem — every concept should connect to the graph.
- Total Orphaned Nodes: 0
✅ No orphaned nodes detected. All concepts are connected to the graph.
Connected Components
- Number of Connected Components: 1
✅ All concepts are connected in a single graph.
Indegree Analysis
Top 10 concepts that are prerequisites for the most other concepts:
| Rank | Concept ID | Concept Label | Indegree |
|---|---|---|---|
| 1 | 1 | Mythical Beast | 13 |
| 2 | 39 | Artificial Intelligence | 12 |
| 3 | 98 | Technology Fantasy | 8 |
| 4 | 58 | AI Hype Culture | 7 |
| 5 | 69 | AI in Education | 7 |
| 6 | 13 | Satire | 6 |
| 7 | 40 | Machine Learning | 6 |
| 8 | 25 | Magical Thinking | 5 |
| 9 | 60 | Vaporware | 5 |
| 10 | 85 | Job Displacement | 5 |
Outdegree Distribution
| Dependencies | Number of Concepts |
|---|---|
| 0 | 11 |
| 1 | 48 |
| 2 | 78 |
| 3 | 2 |
| 4 | 1 |
Recommendations
- ✅ Terminal node percentage (40.0%): Within healthy range (5-40%)
- ✅ DAG structure verified: Graph supports valid learning progressions
Report generated by learning-graph-reports/analyze_graph.py