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Decision-making agents based on pre-trained Large Language Models (LLMs) are increasingly being deployed across various domains of human activity. While their applications are currently rather specialized, several research efforts are…

Machine Learning · Computer Science 2025-05-13 Elizaveta Tennant , Stephen Hailes , Mirco Musolesi

Recently there has been significant progress in the field of dialogue system thanks to the introduction of training paradigms such as fine-tune and prompt learning. Persona can function as the prior knowledge for maintaining the personality…

Information Retrieval · Computer Science 2024-01-24 Yanbing Chen , Lin Li , Xiaohui Tao , Dong Zhou

Explainable AI techniques that describe agent reward functions can enhance human-robot collaboration in a variety of settings. One context where human understanding of agent reward functions is particularly beneficial is in the value…

Robotics · Computer Science 2021-10-11 Lindsay Sanneman , Julie Shah

Conventional low-rank adaptation methods build adapters without considering data context, leading to sub-optimal fine-tuning performance and severe forgetting of inherent world knowledge. In this paper, we propose context-oriented…

Machine Learning · Computer Science 2025-06-17 Yibo Yang , Sihao Liu , Chuan Rao , Bang An , Tiancheng Shen , Philip H. S. Torr , Ming-Hsuan Yang , Bernard Ghanem

Persona agents, which are LLM agents conditioned to act according to an assigned persona, enable contextually rich and user aligned interactions across domains like education and healthcare. However, evaluating how faithfully these agents…

Post-hoc explanation methods attempt to make the inner workings of deep neural networks more interpretable. However, since a ground truth is in general lacking, local post-hoc interpretability methods, which assign importance scores to…

Machine Learning · Computer Science 2023-11-27 Lennart Brocki , Neo Christopher Chung

Achieving personalized alignment requires adapting large language models to each user's evolving context. While decoding-time personalization offers a scalable alternative to training-time methods, existing methods largely rely on implicit,…

Machine Learning · Computer Science 2026-02-23 Xin Yu , Hanwen Xing , Lingzhou Xue

Current methods for personality control in Large Language Models rely on static prompting or expensive fine-tuning, failing to capture the dynamic and compositional nature of human traits. We introduce PERSONA, a training-free framework…

Artificial Intelligence · Computer Science 2026-02-18 Xiachong Feng , Liang Zhao , Weihong Zhong , Yichong Huang , Yuxuan Gu , Lingpeng Kong , Xiaocheng Feng , Bing Qin

Persona prompting has been widely adopted to steer large language models (LLMs) behavior and improve their instruction performance by assigning specific characters. However, identifying an optimal persona is time-consuming, and its impact…

Computation and Language · Computer Science 2026-04-13 Jihwan Oh , Soowon Oh , Murad Aghazada , Minchan Jeong , Sungnyun Kim , Se-Young Yun

Human-like Agents with diverse and dynamic personalities could serve as an essential design probe in the process of user-centered design, thereby enabling designers to enhance the user experience of interactive applications. In this…

Human-Computer Interaction · Computer Science 2024-06-18 Jiale Li , Jiayang Li , Jiahao Chen , Yifan Li , Shijie Wang , Hugo Zhou , Minjun Ye , Yunsheng Su

Statistical language models (LM) play a key role in Automatic Speech Recognition (ASR) systems used by conversational agents. These ASR systems should provide a high accuracy under a variety of speaking styles, domains, vocabulary and…

Computation and Language · Computer Science 2018-12-12 Anirudh Raju , Behnam Hedayatnia , Linda Liu , Ankur Gandhe , Chandra Khatri , Angeliki Metallinou , Anu Venkatesh , Ariya Rastrow

Personas are useful for dialogue response prediction. However, the personas used in current studies are pre-defined and hard to obtain before a conversation. To tackle this issue, we study a new task, named Speaker Persona Detection (SPD),…

Computation and Language · Computer Science 2021-09-06 Jia-Chen Gu , Zhen-Hua Ling , Yu Wu , Quan Liu , Zhigang Chen , Xiaodan Zhu

While both agent interaction and personalisation are vibrant topics in research on large language models (LLMs), there has been limited focus on the effect of language interaction on the behaviour of persona-conditioned LLM agents. Such an…

Computation and Language · Computer Science 2024-02-06 Ivar Frisch , Mario Giulianelli

Identifying relevant persona or knowledge for conversational systems is critical to grounded dialogue response generation. However, each grounding has been mostly researched in isolation with more practical multi-context dialogue tasks…

Computation and Language · Computer Science 2024-08-13 Minsik Oh , Joosung Lee , Jiwei Li , Guoyin Wang

Recent advancements in large language models (LLMs) have significantly boosted the rise of Role-Playing Language Agents (RPLAs), i.e., specialized AI systems designed to simulate assigned personas. By harnessing multiple advanced abilities…

Most prior works on communication in multi-agent reinforcement learning have focused on emergent communication, which often results in inefficient and non-interpretable systems. Inspired by the role of language in natural intelligence, we…

Multiagent Systems · Computer Science 2025-08-08 Maxime Toquebiau , Jae-Yun Jun , Faïz Benamar , Nicolas Bredeche

Large language models (LLMs) have demonstrated significant potential in developing Role-Playing Agents (RPAs). However, current research primarily evaluates RPAs using famous fictional characters, allowing models to rely on memory…

Computation and Language · Computer Science 2026-03-05 Ji-Lun Peng , Yun-Nung Chen

AI explanation methods often assume a static user model, producing non-adaptive explanations regardless of expert goals, reasoning strategies, or decision contexts. Knowledge graph-based explanations, despite their capacity for grounded,…

Artificial Intelligence · Computer Science 2026-03-24 Susana Nunes , Tiago Guerreiro , Catia Pesquita

Role-playing with large language models is fundamentally a session-level task, requiring agents to sustain character identity and interaction quality across extended multi-turn conversations. Yet existing evaluation and optimization methods…

Computation and Language · Computer Science 2026-05-29 Rongsheng Zhang , Jiji Tang , Junnan Ren , Zuyi Bao , Weijie Chen , Ruofan Hu , Zhou Zhao , Tangjie Lv , Yan Zhang

Interactive Machine Learning is concerned with creating systems that operate in environments alongside humans to achieve a task. A typical use is to extend or amplify the capabilities of a human in cognitive or physical ways, requiring the…

Machine Learning · Computer Science 2019-02-05 Miguel Alonso