🤖 AI Summary
This study addresses the lack of empirical analysis on the cross-linguistic and long-term evolutionary patterns in academic thematic map design. We construct, for the first time, a large-scale multilingual dataset of scholarly maps from authoritative Chinese and English journals spanning 1990–2020. Leveraging computer vision and large-model-driven document parsing techniques, we quantitatively analyze map designs across three dimensions: graphical elements, color schemes, and layout structures. Our findings reveal a pronounced convergence in the evolution of Chinese and English academic maps: both exhibit a shared preference for neutral tones with low saturation and high brightness, as well as centered layouts. Moreover, over time, the frequency of legend usage, richness of graphical elements, and diversity of hue have consistently increased, indicating a growing alignment in cartographic conventions across cultural contexts.
📝 Abstract
Thematic maps play a central role in academic communication, yet their large-scale design evolution has rarely been examined empirically. This study presents a longitudinal and multilingual analysis of thematic map design practices in academic cartography from 1990 to 2020. We compile a corpus of 45,732 research articles from sixteen authoritative Chinese- and English-language journals and extract 23,928 maps using computer vision and large-model-based document parsing to build a structured dataset. Map design characteristics are quantified across three dimensions: map elements, color design, and layout structure. Results show that Chinese- and Englishlanguage academic maps share highly similar structural conventions, typically employing restrained color palettes with neutral dominant hues, low saturation, high brightness, and limited hue diversity, as well as centered layouts with high main-map occupation ratios. Differences exist in that English-language maps show slightly greater hue richness and compactness, whereas Chinese-language maps historically rely more on neutral hues and integrated layouts. Temporal analysis reveals parallel evolutionary trends in both groups, including increasing element richness, legend usage, and hue diversity, alongside stable layout structures. Overall, the findings suggest that academic map design evolution is characterized more by institutional convergence than cultural divergence.