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Cunxiao Du

11 accepted papers

2026

Annealed Relaxation of Speculative Decoding for Faster Autoregressive Image Generation

AAAI 2026technical

Despite significant progress in auto-regressive image generation, inference remains slow due to the sequential nature of AR models and the ambiguity of image tokens, even when using speculative decoding. Recent works attempt to address this with relaxed speculative decoding but lack theoretical grou

Cited by 0SourcePDFScholar
2026

Muon Outperforms Adam in Tail-End Associative Memory Learning

ICLR 2026poster

The Muon optimizer is consistently faster than Adam in training Large Language Models (LLMs), yet the mechanism underlying its success remains unclear. This paper demystifies this mechanism through the lens of associative memory. By ablating the transformer components optimized by Muon, we reveal th…

Cited by 0SourceScholar
2025

BanditSpec: Adaptive Speculative Decoding via Bandit Algorithms

ICML 2025poster

Speculative decoding has emerged as a popular method to accelerate the inference of Large Language Models (LLMs) while retaining their superior text generation performance. Previous methods either adopt a fixed speculative decoding configuration regardless of the prefix tokens, or train draft models…

Cited by 0SourcePDFScholar
2025

Efficient Inference for Large Language Model-based Generative Recommendation

ICLR 2025poster

Large Language Model (LLM)-based generative recommendation has achieved notable success, yet its practical deployment is costly particularly due to excessive inference latency caused by autoregressive decoding. For lossless LLM decoding acceleration, Speculative Decoding (SD) has emerged as a promis…

2025

Reverse Modeling in Large Language Models

NAACL 2025short

Humans are accustomed to reading and writing in a forward manner, and this natural bias extends to text understanding in auto-regressive large language models (LLMs). This paper investigates whether LLMs, like humans, struggle with reverse modeling, specifically with reversed text inputs. We found t…

Cited by 0SourcePDFScholar
2025

SWIFT: On-the-Fly Self-Speculative Decoding for LLM Inference Acceleration

ICLR 2025poster

Speculative decoding (SD) has emerged as a widely used paradigm to accelerate LLM inference without compromising quality. It works by first employing a compact model to draft multiple tokens efficiently and then using the target LLM to verify them in parallel. While this technique has achieved notab…

2025

Sparse-to-Dense: A Free Lunch for Lossless Acceleration of Video Understanding in LLMs

ACL 2025short

Due to the auto-regressive nature of current video large language models (Video-LLMs), the inference latency increases as the input sequence length grows, posing challenges for the efficient processing of video sequences that are usually very long. We observe that during decoding, the attention scor…

Cited by 0SourcePDFScholar
2025

When Attention Sink Emerges in Language Models: An Empirical View

ICLR 2025spotlight

Auto-regressive language Models (LMs) assign significant attention to the first token, even if it is not semantically important, which is known as **attention sink**. This phenomenon has been widely adopted in applications such as streaming/long context generation, KV cache optimization, inference a…

2024

GliDe with a CaPE: A Low-Hassle Method to Accelerate Speculative Decoding

ICML 2024poster

Speculative decoding is a relatively new decoding framework that leverages small and efficient draft models to reduce the latency of LLMs. In this study, we introduce GliDe and CaPE, two low-hassle modifications to vanilla speculative decoding to further improve the decoding speed of a frozen LLM. S…

Cited by 19SourcePDFScholar
2022

ngram-OAXE: Phrase-Based Order-Agnostic Cross Entropy for Non-Autoregressive Machine Translation

COLING 2022main

Recently, a new training oaxe loss has proven effective to ameliorate the effect of multimodality for non-autoregressive translation (NAT), which removes the penalty of word order errors in the standard cross-entropy loss. Starting from the intuition that reordering generally occurs between phrases,…

2021

Order-Agnostic Cross Entropy for Non-Autoregressive Machine Translation

ICML 2021oral

We propose a new training objective named order-agnostic cross entropy (OaXE) for fully non-autoregressive translation (NAT) models. OaXE improves the standard cross-entropy loss to ameliorate the effect of word reordering, which is a common source of the critical multimodality problem in NAT. Concr…