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Lifelong learning is essential for intelligent agents operating in dynamic environments. Current large language model (LLM)-based agents, however, remain stateless and unable to accumulate or transfer knowledge over time. Existing…

Artificial Intelligence · Computer Science 2025-06-02 Junhao Zheng , Xidi Cai , Qiuke Li , Duzhen Zhang , ZhongZhi Li , Yingying Zhang , Le Song , Qianli Ma

While reasoning over long context is crucial for various real-world applications, it remains challenging for large language models (LLMs) as they suffer from performance degradation as the context length grows. Recent work MemAgent has…

Computation and Language · Computer Science 2026-02-12 Leheng Sheng , Yongtao Zhang , Wenchang Ma , Yaorui Shi , Ting Huang , Xiang Wang , An Zhang , Ke Shen , Tat-Seng Chua

As evaluation designs of large language models may shape our trajectory toward artificial general intelligence, comprehensive and forward-looking assessment is essential. Existing benchmarks primarily assess static knowledge, while…

Computation and Language · Computer Science 2025-08-07 Jiayin Wang , Zhiquang Guo , Weizhi Ma , Min Zhang

Large Language Models (LLMs) are increasingly used as autonomous agents in complex, long-horizon applications, where effective memory is critical for sustained performance. Yet existing memory benchmarks are largely dialogue-centric, while…

Large Language Models (LLMs) have demonstrated remarkable prowess in generating contextually coherent responses, yet their fixed context windows pose fundamental challenges for maintaining consistency over prolonged multi-session dialogues.…

Computation and Language · Computer Science 2025-04-29 Prateek Chhikara , Dev Khant , Saket Aryan , Taranjeet Singh , Deshraj Yadav

Large language model (LLM) agents increasingly rely on external memory systems to remain consistent across long-horizon interactions, but little empirical work has been done to understand the specific failure modes and design choices that…

Artificial Intelligence · Computer Science 2026-05-27 Ishir Garg , Neel Kolhe , Dawn Song , Xuandong Zhao

Humans build viewpoint-independent cognitive maps through navigation, enabling intuitive reasoning about object permanence and spatial relations. We argue that multimodal large language models (MLLMs), despite extensive video training, lack…

Machine Learning · Computer Science 2025-12-02 Jacob Thompson , Emiliano Garcia-Lopez , Yonatan Bisk

Recently proposed evaluation benchmarks aim to characterize the effective context length and the forgetting tendencies of large language models (LLMs). However, these benchmarks often rely on simplistic 'needle in a haystack' retrieval or…

Computation and Language · Computer Science 2025-10-07 Raquib Bin Yousuf , Aadyant Khatri , Shengzhe Xu , Mandar Sharma , Naren Ramakrishnan

Maintaining consistency in long-term dialogues remains a fundamental challenge for LLMs, as standard retrieval mechanisms often fail to capture the temporal evolution of historical states. While memory-augmented frameworks offer a…

Computation and Language · Computer Science 2026-04-21 Zhiyu Shen , Ziming Wu , Fuming Lai , Shaobing Lian , Yanghui Rao

Long-horizon applications increasingly require large language models (LLMs) to answer queries when relevant evidence is sparse and dispersed across very long contexts. Existing memory systems largely follow two paradigms: explicit…

Computation and Language · Computer Science 2026-01-08 Xin Zhang , Kailai Yang , Hao Li , Chenyue Li , Qiyu Wei , Sophia Ananiadou

Episodic memory allows LLM agents to accumulate and retrieve experience, but current methods treat each memory independently, i.e., evaluating retrieval quality in isolation without accounting for the dependency chains through which…

Artificial Intelligence · Computer Science 2026-05-15 Junwei Liao , Haoting Shi , Ruiwen Zhou , Jiaqian Wang , Shengtao Zhang , Wei Zhang , Ying Wen , Zhiyu Li , Feiyu Xiong , Bo Tang , Weinan Zhang , Muning Wen

Large language models (LLMs) have advanced the field of artificial intelligence (AI) and are a powerful enabler for interactive systems. However, they still face challenges in long-term interactions that require adaptation towards the user…

Artificial Intelligence · Computer Science 2025-05-20 Rebecca Westhäußer , Frederik Berenz , Wolfgang Minker , Sebastian Zepf

Reasoning plays a crucial role in advancing Multimodal Large Language Models (MLLMs) toward Artificial General Intelligence. However, existing MLLM benchmarks often fall short in precisely and comprehensively evaluating long-chain reasoning…

Artificial Intelligence · Computer Science 2025-07-01 Huanjin Yao , Jiaxing Huang , Yawen Qiu , Michael K. Chen , Wenzheng Liu , Wei Zhang , Wenjie Zeng , Xikun Zhang , Jingyi Zhang , Yuxin Song , Wenhao Wu , Dacheng Tao

Memory systems address the challenge of context loss in Large Language Model during prolonged interactions. However, compared to human cognition, the efficacy of these systems in processing emotion-related information remains inconclusive.…

Computation and Language · Computer Science 2026-03-02 Peng Liu , Zhen Tao , Jihao Zhao , Ding Chen , Yansong Zhang , Cuiping Li , Zhiyu Li , Hong Chen

Modern LLM-based agents and chat assistants rely on long-term memory frameworks to store reusable knowledge, recall user preferences, and augment reasoning. As researchers create more complex memory architectures, it becomes increasingly…

Machine Learning · Computer Science 2026-05-25 Alina Shutova , Alexandra Olenina , Ivan Vinogradov , Anton Sinitsin

Long-term memory has emerged as a foundational component of autonomous Large Language Model (LLM) agents, enabling continuous adaptation, lifelong multimodal learning, and sophisticated reasoning. However, as memory systems transition from…

Artificial Intelligence · Computer Science 2026-05-20 Chingkwun Lam , Jiaxin Li , Lingfei Zhang , Kuo Zhao

Assessing the capacity of Large Language Models (LLMs) to plan and reason within the constraints of interactive environments is crucial for developing capable AI agents. We introduce $\textbf{LLM-BabyBench}$, a new benchmark suite designed…

Artificial Intelligence · Computer Science 2025-05-20 Omar Choukrani , Idriss Malek , Daniil Orel , Zhuohan Xie , Zangir Iklassov , Martin Takáč , Salem Lahlou

Long-term conversational agents need memory systems that capture relationships between events, not merely isolated facts, to support temporal reasoning and multi-hop question answering. Current approaches face a fundamental trade-off: flat…

Computation and Language · Computer Science 2026-04-24 Buqiang Xu , Yijun Chen , Jizhan Fang , Ruobin Zhong , Yunzhi Yao , Yuqi Zhu , Lun Du , Shumin Deng

Interactive narrative tasks require LLMs to sustain a coherent, evolving story while adapting to a user over multiple turns. However, suitable benchmarks for this setting are limited: existing evaluations often focus on static prompts,…

Evaluating the reasoning abilities of large language models (LLMs) is challenging. Existing benchmarks often depend on static datasets, which are vulnerable to data contamination and may get saturated over time, or on binary live human…

Artificial Intelligence · Computer Science 2025-02-18 Lanxiang Hu , Qiyu Li , Anze Xie , Nan Jiang , Ion Stoica , Haojian Jin , Hao Zhang