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Diffusion Language Models (DLMs) enable globally coherent, bidirectional, and controllable text generation, offering advantages over traditional autoregressive LLMs, while scaling to ultra-long sequences remains costly. Many existing…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Wenhu Zhang , Yiming Wu , Huanyu Wang , Yaoyang Liu , Huanzhang Dou , Senqiao Yang , Sitong Wu , Hanbin Zhao , Jiaya Jia

Recent advancements in large language models (LLMs) have significantly improved Natural Language to SQL (NL2SQL) tasks, yet most NL2SQL systems continue to rely on the autoregressive (AR) paradigm. The highly structured nature of SQL makes…

Databases · Computer Science 2026-05-28 Peixian Ma , Xialie Zhuang , Jiantao Tan , Changlun Li , Ruirui Chen , Chengwei Qin

In Large Language Model (LLM) inference, Key-Value (KV) caches (KV-caches) are essential for reducing time complexity. However, they result in a linear increase in GPU memory as the context length grows. While recent work explores KV-cache…

Machine Learning · Computer Science 2025-02-25 Ahmed Burak Gulhan , Krishna Teja Chitty-Venkata , Murali Emani , Mahmut Kandemir , Venkatram Vishwanath

Large Language Models (LLMs) have gained popularity in recent years, driving up the demand for inference. LLM inference is composed of two phases with distinct characteristics: a compute-bound prefill phase followed by a memory-bound decode…

Hardware Architecture · Computer Science 2025-10-10 Hengrui Zhang , Pratyush Patel , August Ning , David Wentzlaff

Denoising language models (DLMs) have been proposed as a powerful alternative to traditional language models (LMs) for automatic speech recognition (ASR), motivated by their ability to use bidirectional context and adapt to a specific ASR…

Neural and Evolutionary Computing · Computer Science 2025-12-16 Dorian Koch , Albert Zeyer , Nick Rossenbach , Ralf Schlüter , Hermann Ney

Diffusion language models (DLMs) offer a structural alternative to autoregressive generation: denoising can update tokens in arbitrary orders or in parallel rather than along a fixed left-to-right chain. In practice, fast DLM decoding…

Machine Learning · Computer Science 2026-05-12 Jeonseong Kim

Diffusion-based LLMs (dLLMs) fundamentally depart from traditional autoregressive (AR) LLM inference: they leverage bidirectional attention, block-wise KV cache refreshing, cross-step reuse, and a non-GEMM-centric sampling phase. These…

Hardware Architecture · Computer Science 2026-04-24 Binglei Lou , Haoran Wu , Kevin Lau , Gregor MacDonald , Jiayi Nie , Yao Lai , Can Xiao , Xuan Guo , Jianyi Cheng , Rika Antonova , Robert Mullins , Aaron Zhao

Speculative decoding accelerates large language model (LLM) inference by using a lightweight draft model to propose tokens that are later verified by a stronger target model. While effective in centralized systems, its behavior in…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-11-18 Jingwei Song , Wanyi Chen , Xinyuan Song , Max , Chris Tong , Gufeng Chen , Tianyi Zhao , Eric Yang , Bill Shi , Lynn Ai

Diffusion Language Models (DLMs) offer a promising alternative for language modeling by enabling parallel decoding through iterative refinement. However, most DLMs rely on hard binary masking and discrete token assignments, which hinder the…

Computation and Language · Computer Science 2026-01-19 Linhao Zhong , Linyu Wu , Bozhen Fang , Tianjian Feng , Chenchen Jing , Wen Wang , Jiaheng Zhang , Hao Chen , Chunhua Shen

Diffusion Language models (DLMs) are a promising avenue for text generation due to their practical properties on tractable controllable generation. They also have the advantage of not having to predict text autoregressively. However,…

Machine Learning · Computer Science 2024-02-13 Sofia Maria Lo Cicero Vaina , Nikita Balagansky , Daniil Gavrilov

The emergence of LLMs has ignited a fresh surge of breakthroughs in NLP applications, particularly in domains such as question-answering systems and text generation. As the need for longer context grows, a significant bottleneck in model…

Computation and Language · Computer Science 2024-04-15 Shichen Dong , Wen Cheng , Jiayu Qin , Wei Wang

Large Language models (LLMs) have become a research hotspot. To accelerate the inference of LLMs, storing computed caches in memory has become the standard technique. However, as the inference length increases, growing KV caches might lead…

Computation and Language · Computer Science 2024-12-13 Meizhi Zhong , Xikai Liu , Chen Zhang , Yikun Lei , Yan Gao , Yao Hu , Kehai Chen , Min Zhang

Diffusion models have achieved remarkable success in generative tasks but suffer from high computational costs due to their iterative sampling process and quadratic attention costs. Existing training-free acceleration strategies that reduce…

Machine Learning · Computer Science 2025-07-24 Ting Jiang , Yixiao Wang , Hancheng Ye , Zishan Shao , Jingwei Sun , Jingyang Zhang , Zekai Chen , Jianyi Zhang , Yiran Chen , Hai Li

Diffusion Language Models (DLMs) promise parallel generation and bidirectional context, yet they underperform autoregressive (AR) models in both likelihood modeling and generated text quality. We identify that this performance gap arises…

Computation and Language · Computer Science 2025-05-27 Litu Rout , Constantine Caramanis , Sanjay Shakkottai

The increasing demand for long-context modeling in large language models (LLMs) is bottlenecked by the quadratic complexity of the standard self-attention mechanism. The community has proposed sparse attention to mitigate this issue.…

Artificial Intelligence · Computer Science 2025-11-18 Jingze Shi , Yifan Wu , Yiran Peng , Bingheng Wu , Liangdong Wang , Guang Liu , Yuyu Luo

Long-context LLM serving is bottlenecked by the cost of attending over ever-growing KV caches. Dynamic sparse attention promises relief by accessing only a small, query-dependent subset of the KV state per decoding step and extending the KV…

Machine Learning · Computer Science 2026-04-30 Zihan Zhao , Baotong Lu , Shengjie Lin , Yizou Chen , Jing Liu , Yanqi Zhang , Ziming Miao , Ming-Chang Yang , Haiying Shen , Qi Chen , Fan Yang

Techniques enabling large language models (LLMs) to "think more" by generating and attending to intermediate reasoning steps have shown promise in solving complex problems. However, the standard approaches generate sequences of discrete…

Computation and Language · Computer Science 2024-12-24 Luyang Liu , Jonas Pfeiffer , Jiaxing Wu , Jun Xie , Arthur Szlam

The key-value (KV) cache is a foundational optimization in Transformer-based large language models (LLMs), eliminating redundant recomputation of past token representations during autoregressive generation. However, its memory footprint…

Machine Learning · Computer Science 2026-03-24 Yichun Xu , Navjot K. Khaira , Tejinder Singh

Evaluating LLMs and text-to-image models is a computationally intensive task often overlooked. Efficient evaluation is crucial for understanding the diverse capabilities of these models and enabling comparisons across a growing number of…

Large language models with long context windows can answer complex questions directly from full-length academic, technical, and policy documents, but passing entire documents is often costly, slow, and can degrade answer quality while…