# Technical Document Extraction: Entity Frequency Distribution Analysis ## Chart Description This line graph illustrates the distribution of entity frequencies across sorted entity IDs, comparing multiple generative models against ground truth data. The visualization uses a logarithmic scale on the y-axis to represent frequency magnitudes. ### Axis Labels and Markers - **X-axis**: "Entity ID's Sorted by Frequency" - Linear scale from 0 to 800 with increments of 100 - Represents entity identifiers ordered by descending frequency - **Y-axis**: "Entity Frequency" - Logarithmic scale from 10⁻⁴ to 10⁻¹ - Tick marks at 10⁻⁴, 10⁻³, 10⁻², and 10⁻¹ ### Legend and Model Representation | Color | Model/Reference | Line Characteristics | |---------|--------------------------|-----------------------------------------------| | Blue | ZeroGen | Steepest initial decline, terminates near ID 300 at ~10⁻³ frequency | | Orange | DemoGen | Similar trajectory to ZeroGen, slightly less steep | | Green | ClinGen w/KG | Smooth decline, closely follows Ground Truth | | Red | ClinGen w/LLM | Gradual decline, overlaps with ClinGen w/KG at higher IDs | | Purple | Ground Truth | Reference curve, smoothest distribution | ### Key Trends 1. **Frequency Distribution**: - All models approximate the Ground Truth (purple), with ClinGen variants (green/red) showing the closest alignment. - ZeroGen (blue) and DemoGen (orange) exhibit steeper declines, indicating fewer high-frequency entities compared to ClinGen approaches. 2. **Entity Rank vs. Frequency**: - Top 100 entities (X-axis 0–100) show the highest frequency magnitudes (~10⁻¹ to 10⁻²). - Frequency decays logarithmically across higher-ranked entities (X-axis >100). 3. **Model Performance**: - ClinGen w/LLM (red) and ClinGen w/KG (green) maintain closer proximity to Ground Truth across all entity ranks. - ZeroGen and DemoGen diverge significantly in the 0–300 ID range, suggesting limitations in capturing high-frequency entities. ### Technical Notes - The logarithmic y-axis emphasizes differences in low-frequency entities. - Entity IDs are sorted by descending frequency, making lower ID values correspond to more common entities. - No overlapping lines occur beyond ID 300, where ZeroGen and DemoGen terminate.