Chen, K., Kuo, C. W., & Ou, C. E. (2026). Global Ranks Survive, Selected Heads Shift: BOS-Sink Topology under 4-bit Weight-Only Quantization. https://omanscience.com/en/articles/global-ranks-survive-selected-heads-shift-bos-sink-topology-under-4-bit-weight-only-quantization