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We present a representation-driven framework for reinforcement learning. By representing policies as estimates of their expected values, we leverage techniques from contextual bandits to guide exploration and exploitation. Particularly,…

Machine Learning · Computer Science 2026-01-23 Ofir Nabati , Guy Tennenholtz , Shie Mannor

It has always been expected that a robot can be easily deployed to unknown scenarios, accomplishing robotic grasping tasks without human intervention. Nevertheless, existing grasp detection approaches are typically off-body techniques and…

Robotics · Computer Science 2025-04-08 Jin Liu , Jialong Xie , Leibing Xiao , Chaoqun Wang , Fengyu Zhou

Lifelong embodied navigation requires agents to accumulate, retain, and exploit spatial-semantic experience across tasks, enabling efficient exploration in novel environments and rapid goal reaching in familiar ones. While object-centric…

Robotics · Computer Science 2025-12-29 Botao Ren , Junjun Hu , Xinda Xue , Minghua Luo , Jintao Chen , Haochen Bai , Liangliang You , Mu Xu

The interpretation of spatial references is highly contextual, requiring joint inference over both language and the environment. We consider the task of spatial reasoning in a simulated environment, where an agent can act and receive…

Computation and Language · Computer Science 2017-11-15 Michael Janner , Karthik Narasimhan , Regina Barzilay

Quantifying emergence and modeling emergent dynamics in a data-driven manner for complex dynamical systems is challenging due to the lack of direct observations at the micro-level. Thus, it's crucial to develop a framework to identify…

Physics and Society · Physics 2024-08-16 Mingzhe Yang , Zhipeng Wang , Kaiwei Liu , Yingqi Rong , Bing Yuan , Jiang Zhang

The entropic associative memory (EAM) is a computational model of natural memory incorporating some of its putative properties of being associative, distributed, declarative, abstractive and constructive. Previous experiments satisfactorily…

Machine Learning · Computer Science 2024-05-22 Noé Hernández , Rafael Morales , Luis A. Pineda

Offline meta-reinforcement learning seeks to learn policies that generalize across related tasks from fixed datasets. Context-based methods infer a task representation from transition histories, but learning effective task representations…

Machine Learning · Computer Science 2026-03-04 Mohammadreza Nakheai , Aidan Scannell , Kevin Luck , Joni Pajarinen

Trajectory prediction is a pivotal component of autonomous driving systems, enabling the application of accumulated movement experience to current scenarios. Although most existing methods concentrate on learning continuous representations…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Hang Guo , Yuzhen Zhang , Tianci Gao , Junning Su , Pei Lv , Mingliang Xu

Memory is critical for dialogue agents to maintain coherence and enable continuous adaptation in long-term interactions. While existing memory mechanisms offer basic storage and retrieval capabilities, they are hindered by two primary…

Computation and Language · Computer Science 2026-01-14 Huhai Zou , Tianhao Sun , Chuanjiang He , Yu Tian , Zhenyang Li , Li Jin , Nayu Liu , Jiang Zhong , Kaiwen Wei

Embodied agents are expected to perform object navigation in dynamic, open-world environments. However, existing approaches typically rely on static trajectories and a fixed set of object categories during training, overlooking the…

Robotics · Computer Science 2026-04-07 Ming-Ming Yu , Fei Zhu , Wenzhuo Liu , Yirong Yang , Qunbo Wang , Wenjun Wu , Jing Liu

Foundation Models (FMs) and World Models (WMs) offer complementary strengths in task generalization at different levels. In this work, we propose FOUNDER, a framework that integrates the generalizable knowledge embedded in FMs with the…

Robotics · Computer Science 2025-07-18 Yucen Wang , Rui Yu , Shenghua Wan , Le Gan , De-Chuan Zhan

The Hopfield model provides a mathematically idealized yet insightful framework for understanding the mechanisms of memory storage and retrieval in the human brain. This model has inspired four decades of extensive research on learning and…

Neurons and Cognition · Quantitative Biology 2025-05-14 Simone Betteti , Giacomo Baggio , Francesco Bullo , Sandro Zampieri

Continual learning refers to the capability of a machine learning model to learn and adapt to new information, without compromising its performance on previously learned tasks. Although several studies have investigated continual learning…

Information Retrieval · Computer Science 2024-06-21 Jingrui Hou , Georgina Cosma , Axel Finke

LLM-based social network simulation introduces a new computational approach for modeling event evolution in complex online environments. However, existing methods typically simulate social processes under a fixed event trajectory, treating…

Social and Information Networks · Computer Science 2026-04-17 Yunyao Zhang , Zuocheng Ying , Xinglang Zhang , Junqing Yu , Peng Fang , Xu Chen , Wei Yang , Zikai Song

In real-world applications, learning-enabled systems often undergo iterative model development to address challenging or emerging tasks, which involve collecting new data, training a new model and validating the model. This continual model…

Machine Learning · Computer Science 2025-04-22 Gang Li , Wendi Yu , Yao Yao , Wei Tong , Yingbin Liang , Qihang Lin , Tianbao Yang

Embodied decision-making enables agents to translate high-level goals into executable actions through continuous interactions within the physical world, forming a cornerstone of general-purpose embodied intelligence. Large language models…

Artificial Intelligence · Computer Science 2025-10-15 Zixing Lei , Sheng Yin , Yichen Xiong , Yuanzhuo Ding , Wenhao Huang , Yuxi Wei , Qingyao Xu , Yiming Li , Weixin Li , Yunhong Wang , Siheng Chen

Immersive rooms are increasingly popular augmented reality systems that support multi-agent interactions within a virtual world. However, despite extensive content creation and technological developments, insights about perceptually-driven…

Human-Computer Interaction · Computer Science 2025-12-22 Jerry M. Huang , Stefan T. Radev

In model-based learning, the agent learns behaviors by simulating trajectories based on world model predictions. Standard world models typically learn a stationary transition function that maps states and actions to next states, when an…

Artificial Intelligence · Computer Science 2026-05-11 Qinshi Zhang , Weipeng Deng , Zhihan Jiang , Jiaming Qu , Qianren Li , Weitao Xu , Ray LC

The embedding-based retrieval (EBR) approach is widely used in mainstream search engine retrieval systems and is crucial in recent retrieval-augmented methods for eliminating LLM illusions. However, existing EBR models often face the…

Computation and Language · Computer Science 2024-04-10 Yanan Zhang , Xiaoling Bai , Tianhua Zhou

While video-generation-based embodied world models have gained increasing attention, their reliance on large-scale embodied interaction data remains a key bottleneck. The scarcity, difficulty of collection, and high dimensionality of…