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Catastrophic forgetting remains a major challenge when fine-tuning large language models (LLMs) on narrow, task-specific data, often degrading their general knowledge and reasoning abilities. We propose SA-SFT, a lightweight…

Computation and Language · Computer Science 2026-02-25 Yutao Sun , Mingshuai Chen , Tiancheng Zhao , Phillip Miao , Zilun Zhang , Haozhan Shen , Ruizhe Zhu , Jianwei Yin

Recent advances in transformer-based Large Language Models (LLMs) have demonstrated remarkable capabilities across various tasks. However, their quadratic computational complexity concerning sequence length remains a significant bottleneck…

Computation and Language · Computer Science 2025-06-05 Zichuan Fu , Wentao Song , Yejing Wang , Xian Wu , Yefeng Zheng , Yingying Zhang , Derong Xu , Xuetao Wei , Tong Xu , Xiangyu Zhao

Large Language Model (LLM) based text-to-speech (TTS) systems have demonstrated remarkable capabilities in handling large speech datasets and generating natural speech for new speakers. However, LLM-based TTS models are not robust as the…

While confidence estimation is a promising direction for mitigating hallucinations in Large Language Models (LLMs), current research overwhelmingly focuses on single-turn settings. The dynamics of model confidence in multi-turn…

Computation and Language · Computer Science 2026-05-15 Caiqi Zhang , Ruihan Yang , Xiaochen Zhu , Chengzu Li , Tiancheng Hu , Yijiang River Dong , Deqing Yang , Nigel Collier

We investigate the performance of large language models on repetitive deterministic prediction tasks and study how the sequence accuracy rate scales with output length. Each such task involves repeating the same operation n times. Examples…

Artificial Intelligence · Computer Science 2025-11-25 Wanda Hou , Leon Zhou , Hong-Ye Hu , Yubei Chen , Yi-Zhuang You , Xiao-Liang Qi

Large Audio-Language Models (LALMs) as judges have emerged as a prominent approach for evaluating speech generation quality, yet their ability to assess speaker consistency across multi-turn dialogues remains unexplored. We present…

Computation and Language · Computer Science 2026-04-21 Jonggeun Lee , Junseong Pyo , Gyuhyeon Seo , Yohan Jo

Sentence scoring aims at measuring the likelihood score of a sentence and is widely used in many natural language processing scenarios, like reranking, which is to select the best sentence from multiple candidates. Previous works on…

Computation and Language · Computer Science 2022-10-20 Kaitao Song , Yichong Leng , Xu Tan , Yicheng Zou , Tao Qin , Dongsheng Li

In-context learning is a promising approach for offline reinforcement learning (RL) to handle online tasks, which can be achieved by providing task prompts. Recent works demonstrated that in-context RL could emerge with self-improvement in…

Machine Learning · Computer Science 2024-06-03 Sili Huang , Jifeng Hu , Hechang Chen , Lichao Sun , Bo Yang

Decision Transformer (DT) has emerged as a promising class of algorithms in offline reinforcement learning (RL) tasks, leveraging pre-collected datasets and Transformer's capability to model long sequences. Recent works have demonstrated…

Machine Learning · Computer Science 2025-12-03 Yu Yang , Pan Xu

Task-oriented dialogue (TOD) systems facilitate users in executing various activities via multi-turn dialogues, but Large Language Models (LLMs) often struggle to comprehend these intricate contexts. In this study, we propose a novel…

Computation and Language · Computer Science 2023-09-25 Haoyu Gao , Ting-En Lin , Hangyu Li , Min Yang , Yuchuan Wu , Wentao Ma , Yongbin Li

Building scalable and reusable multi-agent decision policies from offline datasets remains a challenge in offline multi-agent reinforcement learning (MARL), as existing methods often rely on fixed observation formats and action spaces that…

Multiagent Systems · Computer Science 2026-04-28 Zhuohui Zhang , Bin Cheng , Bin He

Accurate multi-turn intent classification is essential for advancing conversational AI systems. However, challenges such as the scarcity of comprehensive datasets and the complexity of contextual dependencies across dialogue turns hinder…

Computation and Language · Computer Science 2024-11-20 Junhua Liu , Yong Keat Tan , Bin Fu , Kwan Hui Lim

Large language models are increasingly deployed across diverse applications. This often includes tasks LLMs have not encountered during training. This implies that enumerating and obtaining the high-quality training data for all tasks is…

Computation and Language · Computer Science 2025-11-11 Shambhavi Krishna , Atharva Naik , Chaitali Agarwal , Sudharshan Govindan , Taesung Lee , Haw-Shiuan Chang

Large Language Models (LLMs) often exhibit strong linguistic abilities while remaining unreliable on multi-step reasoning tasks, particularly when deployed without additional training or fine-tuning. In this work, we study inference-time…

Computation and Language · Computer Science 2026-03-24 Vinay Sharma , Manish Jain

Large language models (LLMs) are increasingly deployed as conversational assistants in open-domain, multi-turn settings, where users often provide incomplete or ambiguous information. However, existing LLM-focused clarification benchmarks…

Computation and Language · Computer Science 2025-12-25 Sichun Luo , Yi Huang , Mukai Li , Shichang Meng , Fengyuan Liu , Zefa Hu , Junlan Feng , Qi Liu

Large language models (LLMs) demonstrate remarkable text comprehension and generation capabilities but often lack the ability to utilize up-to-date or domain-specific knowledge not included in their training data. To address this gap, we…

Computation and Language · Computer Science 2025-09-26 Bo Zhang , Hui Ma , Dailin Li , Jian Ding , Jian Wang , Bo Xu , HongFei Lin

Sentence embeddings are crucial in measuring semantic similarity. Most recent studies employed large language models (LLMs) to learn sentence embeddings. Existing LLMs mainly adopted autoregressive architecture without explicit backward…

Computation and Language · Computer Science 2024-03-15 Xianming Li , Jing Li

Much of natural language processing is focused on leveraging large capacity language models, typically trained over single messages with a task of predicting one or more tokens. However, modeling human language at higher-levels of context…

Computation and Language · Computer Science 2021-11-03 Matthew Matero , Nikita Soni , Niranjan Balasubramanian , H. Andrew Schwartz

The advent of Large Language Models (LLMs) has drastically enhanced dialogue systems. However, comprehensively evaluating the dialogue abilities of LLMs remains a challenge. Previous benchmarks have primarily focused on single-turn…

Computation and Language · Computer Science 2024-11-06 Ge Bai , Jie Liu , Xingyuan Bu , Yancheng He , Jiaheng Liu , Zhanhui Zhou , Zhuoran Lin , Wenbo Su , Tiezheng Ge , Bo Zheng , Wanli Ouyang

Large Language Models (LLMs) suffer significant performance degradation in multi-turn conversations when information is presented incrementally. Given that multi-turn conversations characterize everyday interactions with LLMs, this…

Computation and Language · Computer Science 2025-11-04 Haziq Mohammad Khalid , Athikash Jeyaganthan , Timothy Do , Yicheng Fu , Sean O'Brien , Vasu Sharma , Kevin Zhu