# Technical Document Extraction: Bar Chart Analysis
## 1. Chart Type and Structure
- **Chart Type**: Grouped bar chart
- **Purpose**: Compares accuracy improvements across three AI models
- **Key Components**:
- **X-axis**: Model names (categorical)
- **Y-axis**: Improvements of accuracy (%) (numerical)
- **Legend**: Four categories with color coding
## 2. Axis Labels and Markers
- **X-axis Title**: Not explicitly labeled (categories listed directly)
- **X-axis Categories**:
- MiniCPM-V2.6-8B
- InternVL3-8B
- InternVL3-78B
- **Y-axis Title**: "Improvements of accuracy (%)"
- **Y-axis Scale**: 0% to 10% in 2% increments
## 3. Legend Analysis
- **Position**: Top-right corner
- **Color-Category Mapping**:
- 🔴 Red: Overall
- 🔵 Blue: Plane Geometry
- 🟢 Green: Functions
- 🟠Orange: Others
## 4. Data Extraction and Trends
### Model: MiniCPM-V2.6-8B
- **Overall (🔴)**: ~6.0%
- **Plane Geometry (🔵)**: ~9.0% (highest value)
- **Functions (🟢)**: ~5.5%
- **Others (🟠)**: ~1.2%
### Model: InternVL3-8B
- **Overall (🔴)**: ~5.5%
- **Plane Geometry (🔵)**: ~6.3%
- **Functions (🟢)**: ~0.5% (lowest value)
- **Others (🟠)**: ~3.2%
### Model: InternVL3-78B
- **Overall (🔴)**: ~3.5%
- **Plane Geometry (🔵)**: ~5.8%
- **Functions (🟢)**: ~5.5%
- **Others (🟠)**: ~0.8%
## 5. Spatial Grounding
- **Legend Coordinates**: Top-right quadrant (standard position for bar charts)
- **Bar Alignment**: All bars aligned vertically under respective model categories
## 6. Trend Verification
- **Plane Geometry (🔵)**:
- MiniCPM-V2.6-8B shows steepest improvement (~9%)
- InternVL3-78B demonstrates ~5.8% improvement
- Trend: Decreasing from MiniCPM to InternVL3-78B
- **Functions (🟢)**:
- MiniCPM-V2.6-8B: ~5.5%
- InternVL3-8B: Sharp drop to ~0.5%
- InternVL3-78B: Recovers to ~5.5%
- Trend: U-shaped pattern across models
- **Others (🟠)**:
- Peaks at InternVL3-8B (~3.2%)
- Lowest in InternVL3-78B (~0.8%)
- Trend: Inverse relationship with Plane Geometry improvements
## 7. Data Table Reconstruction
| Model | Overall (%) | Plane Geometry (%) | Functions (%) | Others (%) |
|---------------------|-------------|--------------------|---------------|------------|
| MiniCPM-V2.6-8B | 6.0 | 9.0 | 5.5 | 1.2 |
| InternVL3-8B | 5.5 | 6.3 | 0.5 | 3.2 |
| InternVL3-78B | 3.5 | 5.8 | 5.5 | 0.8 |
## 8. Critical Observations
1. **Plane Geometry Dominance**:
- MiniCPM-V2.6-8B shows highest Plane Geometry improvement (9%)
- All models show Plane Geometry as second-highest category after Overall
2. **Functions Paradox**:
- InternVL3-8B shows near-zero improvement in Functions (~0.5%)
- InternVL3-78B matches MiniCPM-V2.6-8B in Functions (~5.5%)
3. **Others Category**:
- InternVL3-8B has highest "Others" improvement (3.2%)
- Suggests potential misclassification or model-specific edge cases
## 9. Language Analysis
- **Primary Language**: English (all labels and axis titles)
- **Secondary Language**: None detected
## 10. Data Validation
- All legend colors match bar colors exactly
- Y-axis values align with bar heights
- X-axis categories match model names in legend