arXiv Machine Learning

An Input-Dependent Readout Phase for Resonant Sequence Models

The paper introduces an input‑dependent readout phase for ResonatorLM, a resonant sequence model that traditionally uses a fixed phase per head to read memory. By making the phase a function of the current token, the authors add input dependence to the read‑only operation while preserving the exact convolutional path and adding only 0.2 % more parameters. Experiments on 6 M‑parameter character‑level models show that this modification matches the original performance at the training length and dramatically improves generalisation to longer sequences, reducing perplexity from 12.81 to 3.76 when trained on 256 tokens and tested on 1024 tokens.

arXiv AI
1d ago

Learning to Read Out: Unembedding Dynamics in Language Model Pretraining

The paper investigates when a language model actually learns task information versus when its readout (unembedding matrix) learns to express that information. Using a new parameter‑trajectory cross‑coding method, the authors find that hidden states can encode task data early in training, but the readout reorganizes only in a narrow window (0.4–1.1% of Pythia’s pretraining). By varying the readout learning rate, they show that faster readout learning reduces the gap between hidden‑state encoding and output expression without affecting final performance.

By Matteo He, William F. Shen, Alex Iacob, Andrej Jovanovic, Xinchi Qiu, Nicholas D. Lane
arXiv AI
2d ago

FON: A Draft-Revise Dual-Organ Language Model without Sequence-Level Quadratic Attention

arXiv:2610.16301v1 Announce Type: new Abstract: Self-attention assigns two functions to one mechanism-where to read and how to mix-at the price of O(L^2) training, an O(T) decode state, and position...

By Helong Hu (Zhanjiang Campus, Guangdong Ocean University, Zhanjiang, Guangdong, China), Hongdan Pan (Maoming Administrative Service Center, Maoming, Guangdong, China), Shuiqing Hu (China Pacific Insurance)
arXiv Machine Learning
Oct 9

TraceRelay: Attention-Aligned Recurrence over Rolling Traces

TraceRelay is an attention‑aligned recurrent architecture that distributes persistent representations over a rolling sequence of low‑dimensional traces. It uses right‑looking attention to form increments from lower‑layer representations, delays delivery until all attended inputs are in the causal past, and accumulates these increments with a fixed additive phase recurrence. Experiments on 36 small‑model runs show that recurrent phase inheritance yields high accuracy on Equal Repeats (up to 99.69%) but accuracy drops beyond the training range, and that the optimal size of recurrent traces varies across tasks such as Dyck closing‑type prediction and causal Most‑Freq generation.

By Sungwoo Goo, Hwi-yeol Yun, Sangkeun Jung
Hugging Face Trending Papers
Oct 8

TraceRelay: Attention-Aligned Recurrence over Rolling Traces

TraceRelay is an attention‑aligned recurrent architecture that spreads persistent representations across a rolling sequence of low‑dimensional traces. It uses right‑looking attention to build increments, delays their delivery until all attended inputs are in the causal past, and then applies a fixed additive phase recurrence to accumulate them; left‑looking attention reads the resulting residual‑augmented stream. Experiments on 36 small models across tasks such as Equal Repeats, bounded Dyck closing‑type prediction, and causal Most‑Freq generation show that models with recurrent phase inheritance achieve high accuracy within the trained length, while performance drops sharply beyond that range, and that the optimal size of recurrent traces varies by task.

arXiv Machine Learning
Sep 14

Fixed State, Long Reach: What a Constant-Size Cache Buys Block Diffusion at Scale

The paper investigates how block‑diffusion language models can use a constant‑size cache to enable efficient parallel decoding. By employing sequence mixers that summarize completed blocks into a reusable state and a block‑causal training objective, the authors pretrain three 3B block‑diffusion denoisers (attention, Mamba, and hybrid) on 300 B tokens. The resulting state‑space cache remains O(1) in memory and latency regardless of context length, yielding significant speed‑up and memory savings compared to traditional attention‑based caches, especially at very long sequences.

By Vaibhav Singh, Pierre-Andr\'e No\"el, Torsten Scholak, Eugene Belilovsky, Oleksiy Ostapenko
Hugging Face Trending Papers
Jul 2

A Hippocampus for Linear Attention: An Exact Memory for What the Recurrent State Forgets

Linear-attention and state-space language models compress the prefix into a fixed-size recurrent state, yielding O(1) memory at the cost of a lossy exact memory: when many key--value associations compete, earlier facts are overwritten and needle recall degrades. Inspired by Complementary Learning Systems, we give linear attention a hippocampal complement.