## Line Chart: LongBench/lcc Accuracy vs. Compression Rate
### Overview
The chart compares the accuracy of four compression methods (MiniCache, xKV-2, Single SVD, xKV-4) across three compression rates (1x, 2x, 3.6x). Accuracy is measured on a 0-70 scale, with a dashed reference line at 65.
### Components/Axes
- **Y-axis**: Accuracy (20-70, increments of 10)
- **X-axis**: Compression Rate (1x, 2x, 3.6x)
- **Legend**: Located at bottom-left, mapping colors to methods:
- Dark blue squares: MiniCache
- Orange circles: xKV-2 (Ours)
- Teal diamonds: Single SVD
- Red circles: xKV-4 (Ours)
- **Dashed Line**: Horizontal reference at 65 accuracy
### Detailed Analysis
1. **MiniCache** (dark blue squares):
- 1x: ~35 accuracy
- 2x: ~30 accuracy
- 3.6x: ~25 accuracy
- *Trend*: Steep decline with increasing compression
2. **xKV-2 (Ours)** (orange circles):
- 1x: ~62 accuracy
- 2x: ~58 accuracy
- 3.6x: ~57 accuracy
- *Trend*: Gradual decline, maintaining ~57-62 range
3. **Single SVD** (teal diamonds):
- 1x: ~68 accuracy
- 2x: ~52 accuracy
- 3.6x: ~45 accuracy
- *Trend*: Sharp decline, starting highest but dropping fastest
4. **xKV-4 (Ours)** (red circles):
- 1x: ~64 accuracy
- 2x: ~63 accuracy
- 3.6x: ~66 accuracy
- *Trend*: Stable, with slight improvement at 3.6x
### Key Observations
- xKV-4 (red) maintains the highest accuracy across all compression rates, outperforming others at 3.6x (66 vs. 45 for Single SVD and 25 for MiniCache).
- Single SVD starts strongest at 1x (68) but degrades most severely.
- xKV-2 (orange) shows moderate degradation but remains above MiniCache.
- The dashed 65-line suggests a performance benchmark; only xKV-4 approaches this at 3.6x.
### Interpretation
The data demonstrates that xKV-4 (Ours) achieves the best compression-accuracy tradeoff, particularly at higher compression rates. Its stability near the 65 accuracy threshold suggests superior algorithmic efficiency compared to MiniCache and Single SVD, which degrade significantly. xKV-2 (Ours) offers a middle ground but lags behind xKV-4. The dashed reference line likely represents an industry standard or target, with xKV-4 being the only method to consistently approach it. This implies xKV-4's architecture optimizes for both compression efficiency and data fidelity.
