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Current generation of memory-augmented neural networks has limited scalability as they cannot efficiently process data that are too large to fit in the external memory storage. One example of this is lifelong learning scenario where the…

Machine Learning · Computer Science 2018-12-12 Hyunwoo Jung , Moonsu Han , Minki Kang , Sungju Hwang

Although long-term memory systems have made substantial progress in recent years, they still exhibit clear limitations in adaptability, scalability, and self-evolution under continuous interaction settings. Inspired by cognitive theories,…

Artificial Intelligence · Computer Science 2026-01-13 Ningning Zhang , Xingxing Yang , Zhizhong Tan , Weiping Deng , Wenyong Wang

Inspired by the cognitive science theory of the explicit human memory systems, we have modeled an agent with short-term, episodic, and semantic memory systems, each of which is modeled with a knowledge graph. To evaluate this system and…

Artificial Intelligence · Computer Science 2026-05-19 Taewoon Kim , Michael Cochez , Vincent François-Lavet , Mark Neerincx , Piek Vossen

We present a novel deep neural network architecture for representing robot experiences in an episodic-like memory which facilitates encoding, recalling, and predicting action experiences. Our proposed unsupervised deep episodic memory model…

Artificial Intelligence · Computer Science 2018-07-17 Jonas Rothfuss , Fabio Ferreira , Eren Erdal Aksoy , You Zhou , Tamim Asfour

Current deep neural networks can achieve remarkable performance on a single task. However, when the deep neural network is continually trained on a sequence of tasks, it seems to gradually forget the previous learned knowledge. This…

Machine Learning · Computer Science 2020-12-16 Yunhui Guo , Mingrui Liu , Tianbao Yang , Tajana Rosing

The integration of large language models (LLMs) into conversational robots has made human-robot conversations more dynamic. Yet, LLM-powered conversational robots remain prone to errors, e.g., misunderstanding user intent, prematurely…

Transformer-based large language models (LLM) have been widely used in language processing applications. However, due to the memory constraints of the devices, most of them restrict the context window. Even though recurrent models in…

Computation and Language · Computer Science 2025-02-07 Zifan He , Yingqi Cao , Zongyue Qin , Neha Prakriya , Yizhou Sun , Jason Cong

Spatial memory, or the ability to remember and recall specific locations and objects, is central to autonomous agents' ability to carry out tasks in real environments. However, most existing artificial memory modules are not very adept at…

Robotics · Computer Science 2021-02-18 Daniel Lenton , Stephen James , Ronald Clark , Andrew J. Davison

Reinforcement learning agents often forget details of the past, especially after delays or distractor tasks. Agents with common memory architectures struggle to recall and integrate across multiple timesteps of a past event, or even to…

Machine Learning · Computer Science 2021-12-09 Andrew Kyle Lampinen , Stephanie C. Y. Chan , Andrea Banino , Felix Hill

Large language model (LLM)-based agents have shown strong potential in multi-task scenarios, owing to their ability to transfer knowledge across diverse tasks. However, existing approaches often treat prior experiences and knowledge as…

Artificial Intelligence · Computer Science 2025-09-17 Shicheng Ye , Chao Yu , Kaiqiang Ke , Chengdong Xu , Yinqi Wei

Spatial reasoning is a critical capability for intelligent robots, yet current vision-language models (VLMs) still fall short of human-level performance in video-based spatial reasoning. This gap mainly stems from two challenges: a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Zuntao Liu , Yi Du , Taimeng Fu , Shaoshu Su , Cherie Ho , Chen Wang

The hallmark of human intelligence is the self-evolving ability to master new skills by learning from past experiences. However, current AI agents struggle to emulate this self-evolution: fine-tuning is computationally expensive and prone…

Computation and Language · Computer Science 2026-02-13 Shengtao Zhang , Jiaqian Wang , Ruiwen Zhou , Junwei Liao , Yuchen Feng , Zhuo Li , Yujie Zheng , Weinan Zhang , Ying Wen , Zhiyu Li , Feiyu Xiong , Yutao Qi , Bo Tang , Muning Wen

Lifelong event detection aims to incrementally update a model with new event types and data while retaining the capability on previously learned old types. One critical challenge is that the model would catastrophically forget old types…

Computation and Language · Computer Science 2022-09-19 Minqian Liu , Shiyu Chang , Lifu Huang

Automatic speech recognition (ASR) technologies today are primarily optimized for given datasets; thus, any changes in the application environment (e.g., acoustic conditions or topic domains) may inevitably degrade the performance. We can…

Computation and Language · Computer Science 2021-07-05 Heng-Jui Chang , Hung-yi Lee , Lin-shan Lee

Reinforcement learning agents deployed in the real world often have to cope with partially observable environments. Therefore, most agents employ memory mechanisms to approximate the state of the environment. Recently, there have been…

Machine Learning · Computer Science 2023-10-30 Fabian Paischer , Thomas Adler , Markus Hofmarcher , Sepp Hochreiter

Video Large Language Models (Video-LLMs) have shown strong video understanding, yet their application to long-form videos remains constrained by limited context windows. A common workaround is to compress long videos into a handful of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yun Wang , Long Zhang , Jingren Liu , Jiaqi Yan , Zhanjie Zhang , Jiahao Zheng , Ao Ma , Run Ling , Xun Yang , Dapeng Wu , Xiangyu Chen , Xuelong Li

Despite rapid progress in large-scale language and vision models, AI agents still suffer from a fundamental limitation: they cannot remember. Without reliable memory, agents catastrophically forget past experiences, struggle with…

State of the art deep reinforcement learning algorithms are sample inefficient due to the large number of episodes they require to achieve asymptotic performance. Episodic Reinforcement Learning (ERL) algorithms, inspired by the mammalian…

Machine Learning · Computer Science 2024-06-07 Ismael T. Freire , Adrián F. Amil , Paul F. M. J. Verschure

A fundamental objective in intelligent robotics is to move towards lifelong learning robot that can learn and adapt to unseen scenarios over time. However, continually learning new tasks would introduce catastrophic forgetting problems due…

Robotics · Computer Science 2025-09-16 Pengzhi Yang , Xinyu Wang , Ruipeng Zhang , Cong Wang , Frans A. Oliehoek , Jens Kober

As intents unfold and environments change, multi-turn agents face continuously shifting decision contexts. Although reusing past experience is intuitively appealing, existing approaches remain limited: full trajectories are often too…

Machine Learning · Computer Science 2026-02-02 Sijia Li , Yuchen Huang , Zifan Liu , Zijian Li , Jingjing fu , Lei Song , Jiang Bian , Jun Zhang , Rui Wang