# 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, 3**. - **Y-axis (Vertical):** Labeled **"Pass@k (%)"** with a range from **5.0% to 17.5%**, marked in increments of **2.5%**. ### Legend - Located in the **lower-right quadrant** of the chart. - **Color-Coded Labels:** - **Red (■):** RL - **Orange (■):** SFT - **Purple (■):** MT - **Blue (■):** Base ### Data Series #### 1. RL (Red Line) - **Trend:** Steadily increasing from **k=1 to k=3**. - **Data Points:** - **k=1:** ~10.2% - **k=2:** ~13.2% - **k=3:** ~15.0% #### 2. SFT (Orange Line) - **Trend:** Gradual upward slope, slightly less steep than RL. - **Data Points:** - **k=1:** ~10.8% - **k=2:** ~12.8% - **k=3:** ~14.8% #### 3. MT (Purple Line) - **Trend:** Consistent increase, closely following RL. - **Data Points:** - **k=1:** ~10.1% - **k=2:** ~12.1% - **k=3:** ~14.9% #### 4. Base (Blue Line) - **Trend:** Sharp rise from **k=1 to k=2**, then a slower increase. - **Data Points:** - **k=1:** ~6.5% - **k=2:** ~11.8% - **k=3:** ~14.0% ### Spatial Grounding - **Legend Position:** Lower-right quadrant (coordinates: x=0.85, y=0.15 relative to chart boundaries). - **Data Point Markers:** All lines use **cross-shaped markers (×)** at each data point. ### Key Observations 1. **RL** achieves the highest Pass@k values across all k, peaking at **15.0%** for k=3. 2. **Base** starts significantly lower but surpasses SFT and MT by k=3. 3. All lines exhibit upward trends, indicating improved performance as k increases. ### Notes - No textual annotations or additional legends are present. - All data points align with the legend colors (e.g., red markers correspond to RL). - No non-English text detected. This extraction ensures full fidelity to the chart's structure, trends, and numerical data.