# Technical Document Extraction: Line Chart Analysis ## Chart Overview The image depicts a line chart titled **"Pass@k (%)"** with the following components: ### Axes - **X-axis (Horizontal):** Labeled `k` with discrete values at `1`, `2`, and `3`. - **Y-axis (Vertical):** Labeled `Pass@k (%)` with a range from `0` to `20` in increments of `5`. ### Legend - Located in the **top-left corner** of the chart. - **Color-Coded Labels:** - `RL` (Red) - `SFT` (Orange) - `MT` (Purple) - `Base` (Blue) ### Data Series #### 1. RL (Red Line) - **Trend:** Steep upward slope. - **Data Points:** - `k=1`: `8%` - `k=2`: `16%` - `k=3`: `20.5%` #### 2. SFT (Orange Line) - **Trend:** Moderate upward slope. - **Data Points:** - `k=1`: `5.5%` - `k=2`: `9.5%` - `k=3`: `13%` #### 3. MT (Purple Line) - **Trend:** Steeper than SFT but less than RL. - **Data Points:** - `k=1`: `7%` - `k=2`: `12.5%` - `k=3`: `17.5%` #### 4. Base (Blue Line) - **Trend:** Gentle upward slope. - **Data Points:** - `k=1`: `3%` - `k=2`: `8%` - `k=3`: `12%` ### Key Observations - All lines show **increasing trends** as `k` increases. - `RL` consistently outperforms other methods across all `k` values. - `Base` has the lowest performance, while `RL` achieves the highest Pass@k percentage. ### Spatial Grounding - **Legend Position:** Top-left corner (coordinates: `[x=0, y=0]` relative to chart boundaries). - **Data Point Colors:** Match legend labels exactly (e.g., red for `RL`, orange for `SFT`). ### Trend Verification - **RL:** Sharpest increase (e.g., `8%` → `20.5%` over `k=1` to `k=3`). - **MT:** Second-steepest increase (e.g., `7%` → `17.5%`). - **SFT/Base:** Gradual increases (e.g., `5.5%` → `13%` for SFT; `3%` → `12%` for Base). ### Component Isolation 1. **Header:** Chart title (`Pass@k (%)`) and axis labels. 2. **Main Chart:** Four distinct lines with markers and slopes. 3. **Footer:** No additional text or annotations. ### Final Notes - No non-English text or embedded diagrams present. - All numerical values and labels extracted directly from the chart.