arXiv Computation and Language

On the Opportunities and Challenges of Prefill-to-Autoregressive Cross-Model Transfer

Prefill-to-Autoregressive Cross-model Transfer (PACT) is a method that lets a large language model provide prompt representations to a smaller model, aiming to combine high capability with efficient generation. The authors present PLatour, an open‑source framework that connects frozen models via lightweight, zero‑initialized linear bridges trained with task rewards and supports hybrid‑attention architectures. While PLatour outperforms open‑source baselines on generation tasks and beats prior results on mathematics and coding benchmarks with a smaller sender, controlled experiments reveal that some gains can arise from uninformative sender signals or receiver‑only training, prompting the authors to propose PACT‑Check to assess genuine communication benefits.

arXiv Machine Learning
Jun 4

Breaking the Scale Barrier: One-Shot Knowledge Transfer via Frequency Transform

arXiv:2603. 07523v3 Announce Type: replace Abstract: Transferring knowledge by fine-tuning large-scale pre-trained networks has become a standard paradigm for downstream tasks, yet the knowledge of a pre-trained model is tightly coupled with monolithic architecture, which restricts flexible reuse across models of varying scales.

By Jianlu Shen, Fu Feng, Yucheng Xie, Jiaqi Lv, Xin Geng
arXiv AI
Jun 2

Latent Collaboration in Multi-Agent Systems

arXiv:2511. 20639v3 Announce Type: replace-cross Abstract: Multi-agent systems (MAS) extend large language models (LLMs) from independent single-model reasoning to coordinative system-level intelligence.

By Jiaru Zou, Ruizhong Qiu, Gaotang Li, Xiyuan Yang, Katherine Tieu, Pan Lu, Ke Shen, Hanghang Tong, Yejin Choi, Jingrui He, James Zou, Mengdi Wang, Ling Yang
arXiv Machine Learning
Sep 14

Dead Weights, Live Signals: Feedforward Graphs of Frozen Language Models

The paper introduces a feedforward graph architecture that uses several frozen large language models as computational nodes connected through a shared continuous latent space via learned linear projections. By jointly optimizing projection matrices through backpropagation, the system combines the representations of three small frozen models with two larger ones, culminating in a lightweight cross‑attention output node. With only 17.6 M trainable parameters, the architecture attains state‑of‑the‑art results on ARC‑Challenge, OpenBookQA, and MMLU, surpassing both individual constituent models and parameter‑matched learned classifiers.

By Marcus Armstrong, Navid Ayoobi, Arjun Mukherjee
arXiv AI
1d ago

Circe: Training-Free LLM Self-Evaluation via Component Interaction Consistency

Circe is a training‑free method for self‑evaluating large language model responses without reference answers. It combines internal signals—component interaction consistency (CIC) and representation geometry (RG)—with an external likelihood confidence (LC) score to produce a unified correctness score. Experiments on five LLMs across six benchmarks demonstrate that Circe better distinguishes correct from incorrect responses than existing baselines and works in multilingual, multimodal, and open‑world settings.

By Shuyi Miao, Zheng Li, Xu Xie, Linrui Xu, Fei Shen, Xiaoyu Du, Tat-Seng Chua
arXiv Machine Learning
Jul 14

Controllably Efficient Language Models

arXiv:2511. 05313v2 Announce Type: replace Abstract: The substantial inference costs of attention in transformers motivated the development of efficient sequence mixers: namely sparse and sliding window attention, convolutions and linear attention.

By Jatin Prakash, Aahlad Puli, Rajesh Ranganath
arXiv Machine Learning
Sep 7

GEPARD - Generative, Prosody-aware, Autoregressive text-to-speech model for Realtime Dialogue

GEPARD is a streaming text‑to‑speech model that uses a standard large language model backbone to generate speech autoregressively, decoding audio with an FSQ‑based neural codec. It streams audio chunk‑by‑chunk as text arrives, achieving a real‑time factor of about 0.067 and an aggregate speedup of roughly 204× on a single GPU with 256 concurrent streams. The design keeps all complex auxiliary mechanisms outside the decode loop, enabling deployment with a standard LLM engine (vLLM) without kernel modifications.

By Denis Pavlov, Ulanbek Abdurazakov, Nursultan Bakashov
arXiv Computation and Language
Oct 9

Local Prototype Reconstruction for Text-Compatible Speech-to-LLM Bridge Pretraining

The paper introduces Local Prototype Reconstruction (LPR), a lightweight regularizer that encourages bridge embeddings in speech‑to‑LLM systems to stay close to the frozen LLM’s input‑embedding neighbourhoods. By measuring lexical manifold compatibility with a fixed, head‑free, timestamp‑free diagnostic, the authors show that next‑word prediction and sentence‑level contrastive pretraining do not fully capture token‑level lexical compatibility. Experiments on multilingual ASR and speech translation demonstrate that LPR improves transfer, especially for translation and low‑resource adaptation, and that the diagnostic correlates with downstream gains across objectives.

By Xinnian Zhao, Chia-Hua Wu, Pu Wang, Hugo Van Hamme