When Does Multimodal AI Help? Diagnostic Complementarity of Vision-Language Models and CNNs for Spectrum Management in Satellite-Terrestrial Networks

Researchers developed SpectrumQA, a benchmark comparing vision-language models (VLMs) and CNNs for spectrum management in satellite-terrestrial networks. The study reveals task-dependent complementarity: CNNs excel at spatial localization while VLMs uniquely enable semantic reasoning capabilities that CNNs lack entirely.