FFN Gate Sparsity as a Query-Level Correlate of Knowledge Availability: A Length-Controlled Re-analysis Across Eight Language Models
This paper replaces six earlier preprints (TES-1 to TES-6, March 2026). A re-analysis of all archived per-prompt data found that the Gate Sparseness Index (GSI) depends strongly on prompt length, which the original analyses did not control, and several pipeline errors affected results. With length controlled, the diffe...