RemoteAgent: Bridging Vague Human Intents and Earth Observation with RL-based Agentic MLLMs

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Main Authors: Yao, Liang, Xu, Shengxiang, Liu, Fan, Zhang, Chuanyi, Yao, Bishun, Min, Rui, Li, Yongjun, Ouyang, Chaoqian, Di, Shimin, Zhang, Min-Ling
Format: Preprint
Published: 2026
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author Yao, Liang
Xu, Shengxiang
Liu, Fan
Zhang, Chuanyi
Yao, Bishun
Min, Rui
Li, Yongjun
Ouyang, Chaoqian
Di, Shimin
Zhang, Min-Ling
author_facet Yao, Liang
Xu, Shengxiang
Liu, Fan
Zhang, Chuanyi
Yao, Bishun
Min, Rui
Li, Yongjun
Ouyang, Chaoqian
Di, Shimin
Zhang, Min-Ling
contents Earth Observation (EO) systems are essentially designed to support domain experts who often express their requirements through vague natural language rather than precise, machine-friendly instructions. Depending on the specific application scenario, these vague queries can demand vastly different levels of visual precision. Consequently, a practical EO AI system must bridge the gap between ambiguous human queries and the appropriate multi-granularity visual analysis tasks, ranging from holistic image interpretation to fine-grained pixel-wise predictions. While Multi-modal Large Language Models (MLLMs) demonstrate strong semantic understanding, their text-based output format is inherently ill-suited for dense, precision-critical spatial predictions. Existing agentic frameworks address this limitation by delegating tasks to external tools, but indiscriminate tool invocation is computationally inefficient and underutilizes the MLLM's native capabilities. To this end, we propose RemoteAgent, an agentic framework that strategically respects the intrinsic capability boundaries of MLLMs. To empower this framework to understand real user intents, we construct VagueEO, a human-centric instruction dataset pairing EO tasks with simulated vague natural-language queries. By leveraging VagueEO for reinforcement fine-tuning, we align an MLLM into a robust cognitive core that directly resolves image- and sparse region-level tasks. Consequently, RemoteAgent processes suitable tasks internally while intelligently orchestrating specialized tools via the Model Context Protocol exclusively for dense predictions. Extensive experiments demonstrate that RemoteAgent achieves robust intent recognition capabilities while delivering highly competitive performance across diverse EO tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2604_07765
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle RemoteAgent: Bridging Vague Human Intents and Earth Observation with RL-based Agentic MLLMs
Yao, Liang
Xu, Shengxiang
Liu, Fan
Zhang, Chuanyi
Yao, Bishun
Min, Rui
Li, Yongjun
Ouyang, Chaoqian
Di, Shimin
Zhang, Min-Ling
Computer Vision and Pattern Recognition
Earth Observation (EO) systems are essentially designed to support domain experts who often express their requirements through vague natural language rather than precise, machine-friendly instructions. Depending on the specific application scenario, these vague queries can demand vastly different levels of visual precision. Consequently, a practical EO AI system must bridge the gap between ambiguous human queries and the appropriate multi-granularity visual analysis tasks, ranging from holistic image interpretation to fine-grained pixel-wise predictions. While Multi-modal Large Language Models (MLLMs) demonstrate strong semantic understanding, their text-based output format is inherently ill-suited for dense, precision-critical spatial predictions. Existing agentic frameworks address this limitation by delegating tasks to external tools, but indiscriminate tool invocation is computationally inefficient and underutilizes the MLLM's native capabilities. To this end, we propose RemoteAgent, an agentic framework that strategically respects the intrinsic capability boundaries of MLLMs. To empower this framework to understand real user intents, we construct VagueEO, a human-centric instruction dataset pairing EO tasks with simulated vague natural-language queries. By leveraging VagueEO for reinforcement fine-tuning, we align an MLLM into a robust cognitive core that directly resolves image- and sparse region-level tasks. Consequently, RemoteAgent processes suitable tasks internally while intelligently orchestrating specialized tools via the Model Context Protocol exclusively for dense predictions. Extensive experiments demonstrate that RemoteAgent achieves robust intent recognition capabilities while delivering highly competitive performance across diverse EO tasks.
title RemoteAgent: Bridging Vague Human Intents and Earth Observation with RL-based Agentic MLLMs
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2604.07765