2 papers
cs.LG2026
Reading the Gate, Not the Interference: Output-Side Interference Measurement Does Not Track Merge Collapse
Chencheng Zhu
Model merging by task arithmetic works until it doesn't, and the field diagnoses why by measuring interference inside the merged model. We take the most direct such measure - the e…
cs.LG2026
When Do Task Vectors Interfere? Mapping the Validity Boundaries of Weight-Space Composition
Chencheng Zhu, Xiaoyang Li, Taotao Cai
Task arithmetic treats fine-tuning displacements as composable directions in weight space, yet it remains unclear when parameter addition reflects predictable changes in model func…