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In Vision-and-Language Navigation (VLN), an agent needs to navigate through the environment based on natural language instructions. Due to limited available data for agent training and finite diversity in navigation environments, it is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Jialu Li , Hao Tan , Mohit Bansal

Most existing language model agentic systems today are built and optimized for large language models (e.g., GPT, Claude, Gemini) via API calls. While powerful, this approach faces several limitations including high token costs and privacy…

Computation and Language · Computer Science 2026-02-03 Gaurav Srivastava , Aafiya Hussain , Chi Wang , Yingyan Celine Lin , Xuan Wang

Robotic assembly tasks remain an open challenge due to their long horizon nature and complex part relations. Behavior trees (BTs) are increasingly used in robot task planning for their modularity and flexibility, but creating them manually…

Robotics · Computer Science 2025-06-19 Jicong Ao , Fan Wu , Yansong Wu , Abdalla Swikir , Sami Haddadin

Achieving general-purpose robotics requires empowering robots to adapt and evolve based on their environment and feedback. Traditional methods face limitations such as extensive training requirements, difficulties in cross-task…

Robotics · Computer Science 2026-04-23 Jianzong Wang , Botao Zhao , Yayun He , Junqing Peng , Xulong Zhang

Large Language Models (LLMs) have opened transformative possibilities for human-robot collaboration. However, enabling real-time collaboration requires both low latency and robust reasoning, and most LLMs suffer from high latency. To…

Artificial Intelligence · Computer Science 2026-01-27 Shipeng Liu , Boshen Zhang , Zhehui Huang

Training agents to act competently in complex 3D environments from high-dimensional visual information is challenging. Reinforcement learning is conventionally used to train such agents, but requires a carefully designed reward function,…

Machine Learning · Computer Science 2025-12-30 Adam Jelley , Yuhan Cao , Dave Bignell , Amos Storkey , Sam Devlin , Tabish Rashid

Recent advances in Large Language Models (LLMs) have helped facilitate exciting progress for robotic planning in real, open-world environments. 3D scene graphs (3DSGs) offer a promising environment representation for grounding such…

Robotics · Computer Science 2024-11-01 Meghan Booker , Grayson Byrd , Bethany Kemp , Aurora Schmidt , Corban Rivera

Large Language Models (LLMs) have demonstrated remarkable capabilities across various tasks, yet they face significant challenges in embodied task planning scenarios that require continuous environmental understanding and action generation.…

Computation and Language · Computer Science 2025-07-01 Zhaoye Fei , Li Ji , Siyin Wang , Junhao Shi , Jingjing Gong , Xipeng Qiu

With AlphaGo defeats top human players, reinforcement learning(RL) algorithms have gradually become the code-base of building stronger artificial intelligence(AI). The RL algorithm design firstly needs to adapt to the specific environment,…

Reinforcement Learning (RL) algorithms often require long training to become useful, especially in complex environments with sparse rewards. While techniques like reward shaping and curriculum learning exist to accelerate training, these…

Machine Learning · Computer Science 2025-09-11 Lukas Toral , Teddy Lazebnik

Although Large Language Models (LLMs) exhibit remarkable adaptability across domains, these models often fall short in structured knowledge extraction tasks such as named entity recognition (NER). This paper explores an innovative,…

Computation and Language · Computer Science 2024-06-11 Yuzhao Heng , Chunyuan Deng , Yitong Li , Yue Yu , Yinghao Li , Rongzhi Zhang , Chao Zhang

LLM agents excel in compact environments requiring deep reasoning but remain brittle when operating in broader, more complex contexts that demand robustness across diverse tools and schemas. Building bespoke environments for training is…

Artificial Intelligence · Computer Science 2025-11-04 Yuetai Li , Huseyin A Inan , Xiang Yue , Wei-Ning Chen , Lukas Wutschitz , Janardhan Kulkarni , Radha Poovendran , Robert Sim , Saravan Rajmohan

Training large language models (LLMs) as interactive agents presents unique challenges including long-horizon decision making and interacting with stochastic environment feedback. While reinforcement learning (RL) has enabled progress in…

Large language models (LLMs) have demonstrated remarkable capabilities across a range of text-generation tasks. However, LLMs still struggle with problems requiring multi-step decision-making and environmental feedback, such as online…

Artificial Intelligence · Computer Science 2025-02-18 Zhenfang Chen , Delin Chen , Rui Sun , Wenjun Liu , Chuang Gan

Fine-tuning LLM-based text embedders via contrastive learning maps inputs and outputs into a new representational space, discarding the LLM's output semantics. We propose LLM2Vec-Gen, a self-supervised alternative that instead produces…

Computation and Language · Computer Science 2026-04-03 Parishad BehnamGhader , Vaibhav Adlakha , Fabian David Schmidt , Nicolas Chapados , Marius Mosbach , Siva Reddy

Humans can quickly learn new behaviors by leveraging background world knowledge. In contrast, agents trained with reinforcement learning (RL) typically learn behaviors from scratch. We thus propose a novel approach that uses the vast…

Machine Learning · Computer Science 2024-05-24 William Chen , Oier Mees , Aviral Kumar , Sergey Levine

Developing autonomous LLM agents capable of making a series of intelligent decisions to solve complex, real-world tasks is a fast-evolving frontier. Like human cognitive development, agents are expected to acquire knowledge and skills…

Future robotic systems operating in real-world environments will require on-board embodied intelligence without continuous cloud connection, balancing capabilities with constraints on computational power and memory. This work presents an…

Robotics · Computer Science 2025-09-03 Liam Boyle , Nicolas Baumann , Paviththiren Sivasothilingam , Michele Magno , Luca Benini

While large language models (LLMs) bring not only performance but also complexity, recent work has started to turn LLMs into data generators rather than task inferencers, where another affordable task model is trained for efficient…

Computation and Language · Computer Science 2023-05-24 Jiacheng Ye , Chengzu Li , Lingpeng Kong , Tao Yu

Reinforcement learning (RL) has enabled the training of large language model (LLM) agents to interact with the environment and to solve multi-turn long-horizon tasks. However, the RL-trained agents often struggle in tasks that require…

Machine Learning · Computer Science 2026-03-10 Yulun Jiang , Liangze Jiang , Damien Teney , Michael Moor , Maria Brbic