An Efficient and Effective Encoder Model for Vision and Language Tasks in the Remote Sensing Domain

• URL: http://arxiv.org/abs/2512.15531v1
• Date: Wed, 17 Dec 2025 15:33:48 GMT
• Title: An Efficient and Effective Encoder Model for Vision and Language Tasks in the Remote Sensing Domain
• Authors: João Daniel Silva, Joao Magalhaes, Devis Tuia, Bruno Martins,
• Abstract summary: Large Vision and Language Models (LVLMs) can address multiple tasks at the intersection of computer vision and natural language processing.<n>The cost of using and training LVLMs is high, due to the large number of parameters.<n>We propose a model that can effectively address multi-task learning while remaining compact in terms of the number of parameters.
• Score: 15.126182274242375
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The remote sensing community has recently seen the emergence of methods based on Large Vision and Language Models (LVLMs) that can address multiple tasks at the intersection of computer vision and natural language processing. To fully exploit the potential of such models, a significant focus has been given to the collection of large amounts of training data that cover multiple remote sensing-specific tasks, such as image captioning or visual question answering. However, the cost of using and training LVLMs is high, due to the large number of parameters. While multiple parameter-efficient adaptation techniques have been explored, the computational costs of training and inference with these models can remain prohibitive for most institutions. In this work, we explore the use of encoder-only architectures and propose a model that can effectively address multi-task learning while remaining compact in terms of the number of parameters. In particular, our model tackles combinations of tasks that are not typically explored in a unified model: the generation of text from remote sensing images and cross-modal retrieval. The results of our GeoMELT model - named from Multi-task Efficient Learning Transformer - in established benchmarks confirm the efficacy and efficiency of the proposed approach.

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