4 papers
Exact Record Omission in Delta Attention: A Transport Criterion, Its Cost, and a Replay Certificate
Vishwajith Ramesh
An assistant can stop repeating a deleted statement while its recurrent memory still carries that statement's influence. We examine this distinction by saving the state difference…
Can an AI Assistant Really Forget? Auditable Deletion from Addressable Memory
Vishwajith Ramesh
An assistant can stop repeating a fact without removing it from memory. To study this difference, we install a support-vector gate in frozen Gemma 3 and record which stored keys an…
What a Deletion Certificate Covers, and Where It Expires: Auditable Removal from a Support-Vector Memory
Vishwajith Ramesh
We study deletion in a context memory that fits a support-vector boundary around stored keys and uses the resulting nonnegative coefficients to weight their values. An exactly zero…
Deep supervised learning using local errors
Hesham Mostafa, Vishwajith Ramesh, Gert Cauwenberghs
Error backpropagation is a highly effective mechanism for learning high-quality hierarchical features in deep networks. Updating the features or weights in one layer, however, requ…