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The autoregressive nature of conventional large language models (LLMs) inherently limits inference speed, as tokens are generated sequentially. While speculative and parallel decoding techniques attempt to mitigate this, they face…

Artificial Intelligence · Computer Science 2024-10-22 Aishwarya P S , Pranav Ajit Nair , Yashas Samaga , Toby Boyd , Sanjiv Kumar , Prateek Jain , Praneeth Netrapalli

Prompt Recovery, reconstructing prompts from the outputs of large language models (LLMs), has grown in importance as LLMs become ubiquitous. Most users access LLMs through APIs without internal model weights, relying only on outputs and…

Computation and Language · Computer Science 2025-04-08 Shenyang Liu , Yang Gao , Shaoyan Zhai , Liqiang Wang

The quadratic complexity and indefinitely growing key-value (KV) cache of standard Transformers pose a major barrier to long-context processing. To overcome this, we introduce the Collaborative Memory Transformer (CoMeT), a novel…

Machine Learning · Computer Science 2026-04-20 Runsong Zhao , Shilei Liu , Jiwei Tang , Langming Liu , Haibin Chen , Weidong Zhang , Yujin Yuan , Tong Xiao , Jingbo Zhu , Wenbo Su , Bo Zheng

The past few years have witnessed a growing interest in LLM-based recommender systems (RSs), although their industrial deployment remains in a preliminary stage. Most existing deployments leverage LLMs offline as feature enhancers,…

Information Retrieval · Computer Science 2025-04-30 Yunjia Xi , Hangyu Wang , Bo Chen , Jianghao Lin , Menghui Zhu , Weiwen Liu , Ruiming Tang , Zhewei Wei , Weinan Zhang , Yong Yu

We present Cacheback Decoding, a training-free and model-agnostic speculative decoding method that exploits the locality in language to accelerate Large Language Model (LLM) inference. Cacheback leverages only Least Recently Used (LRU)…

Computation and Language · Computer Science 2025-12-01 Zhiyao Ma , In Gim , Lin Zhong

Large language models (LLMs) have achieved notable progress. Despite their success, next-token prediction (NTP), the dominant method for LLM training and inference, is constrained in both contextual coverage and inference efficiency due to…

Computation and Language · Computer Science 2025-09-23 Xiaohao Liu , Xiaobo Xia , Weixiang Zhao , Manyi Zhang , Xianzhi Yu , Xiu Su , Shuo Yang , See-Kiong Ng , Tat-Seng Chua

Speculative decoding (SD) is a promising method for accelerating the decoding process of Large Language Models (LLMs). The efficiency of SD primarily hinges on the consistency between the draft model and the verify model. However, existing…

Computation and Language · Computer Science 2025-06-02 Longze Chen , Renke Shan , Huiming Wang , Lu Wang , Ziqiang Liu , Run Luo , Jiawei Wang , Hamid Alinejad-Rokny , Min Yang

Large language models are increasingly integrated with external environments, tools, and agents like ChatGPT plugins to extend their capability beyond language-centric tasks. However, today's LLM inference systems are designed for…

Machine Learning · Computer Science 2024-05-31 Reyna Abhyankar , Zijian He , Vikranth Srivatsa , Hao Zhang , Yiying Zhang

Speculative decoding accelerates Large Language Model (LLM) inference by employing a small speculative model (SSM) to generate multiple candidate tokens and verify them using the LLM in parallel. This technique has been widely integrated…

Computation and Language · Computer Science 2025-05-26 Ruixiao Li , Fahao Chen , Peng Li

Large language models (LLMs) are used in chatbots or AI assistants to hold conversations with a human user. In such applications, the quality (e.g., user engagement, safety) of a conversation is important and can only be exactly known at…

Artificial Intelligence · Computer Science 2025-06-10 Zhiliang Chen , Xinyuan Niu , Chuan-Sheng Foo , Bryan Kian Hsiang Low

Large Language Models (LLMs) have demonstrated remarkable capabilities in code editing, substantially enhancing software development productivity. However, the inherent complexity of code editing tasks forces existing approaches to rely on…

Software Engineering · Computer Science 2025-10-01 Peiding Wang , Li Zhang , Fang Liu , Yinghao Zhu , Wang Xu , Lin Shi , Xiaoli Lian , Minxiao Li , Bo Shen , An Fu

Improving time-to-first-token (TTFT) is an essentially important objective in modern large language model (LLM) inference engines. Optimizing TTFT directly results in higher maximal QPS and meets the requirements of many critical…

Computation and Language · Computer Science 2025-05-21 Jingyu Liu , Beidi Chen , Ce Zhang

Existing speculative decoding methods typically require additional model structure and training processes to assist the model for draft token generation. This makes the migration of acceleration methods to the new model more costly and more…

Computation and Language · Computer Science 2024-10-08 Yixuan Wang , Xianzhen Luo , Fuxuan Wei , Yijun Liu , Qingfu Zhu , Xuanyu Zhang , Qing Yang , Dongliang Xu , Wanxiang Che

This study introduces bifurcated attention, a method designed to enhance language model inference in shared-context batch decoding scenarios. Our approach addresses the challenge of redundant memory IO costs, a critical factor contributing…

While contrastive learning is proven to be an effective training strategy in computer vision, Natural Language Processing (NLP) is only recently adopting it as a self-supervised alternative to Masked Language Modeling (MLM) for improving…

Computation and Language · Computer Science 2021-09-16 Hooman Sedghamiz , Shivam Raval , Enrico Santus , Tuka Alhanai , Mohammad Ghassemi

Speculative decoding accelerates LLM inference by utilizing otherwise idle computational resources during memory-to-chip data transfer. Current speculative decoding methods typically assume a considerable amount of available computing…

Computation and Language · Computer Science 2025-11-26 Luohe Shi , Zuchao Li , Lefei Zhang , Baoyuan Qi , Guoming Liu , Hai Zhao

The performance of large language models (LLMs) is closely linked to their underlying size, leading to ever-growing networks and hence slower inference. Speculative decoding has been proposed as a technique to accelerate autoregressive…

Current auto-regressive models can generate high-quality, topologically precise meshes; however, they necessitate thousands-or even tens of thousands-of next-token predictions during inference, resulting in substantial latency. We introduce…

Graphics · Computer Science 2025-08-07 Dian Chen , Yansong Qu , Xinyang Li , Ming Li , Shengchuan Zhang

Large Language Models (LLMs) increasingly rely on reinforcement learning with verifiable rewards (RLVR) to elicit reliable chain-of-thought reasoning. However, the training process remains bottlenecked by the computationally expensive…

Machine Learning · Computer Science 2026-01-13 Bingshuai Liu , Ante Wang , Zijun Min , Liang Yao , Haibo Zhang , Yang Liu , Xu Han , Peng Li , Anxiang Zeng , Jinsong Su

Large language models (LLMs) suffer significant performance degradation when user instructions and context are distributed over multiple conversational turns, yet multi-turn (MT) interactions dominate chat interfaces. The routine approach…

Computation and Language · Computer Science 2026-04-21 Jyotika Singh , Fang Tu , Miguel Ballesteros , Weiyi Sun , Sandip Ghoshal , Michelle Yuan , Yassine Benajiba , Sujith Ravi , Dan Roth