用时代分类法量化中美韩流行音乐风格传播延迟
Measuring Cross-Cultural Style Diffusion Through Era Classification: US and Korean Popular Music
- 用卷积神经网络分析美国公告牌与韩国Melon歌曲年代特征
- 韩歌比美歌平均晚4-5年反映风格传播时滞，90年代后缩至2-3年
- 方法可推广至其他文化间音乐风格对比研究
流行音乐在全球传播的同时被本地重构，但跨文化风格扩散过程极少被量化。本文提出一种基于时代分类的框架，用于测量榜单文化间的时期同步性。在公告牌百大热门榜音频上从头训练的卷积神经网络，应用于韩国Melon榜单歌曲。1960至1980年代的韩语榜单歌曲被一致推断属于更早的公告牌时代，中位延迟约四到五年；同一模型在独立公告牌音频上无偏误。该时滞在1990年代减半至约两到三年，并在2000年代保持稳定。反向推断显示趋势互补，且在不同架构和随机种子下均成立。结果表明全球流行风格被本地采纳并逐步同步。该框架可拓展至其他榜单文化对比。
原文摘要 · Abstract (English)
Popular music circulates globally while being locally reinterpreted, yet this process of cross-cultural style diffusion has rarely been quantified. We propose an era-classification framework for measuring temporal alignment between chart cultures. CNN classifiers trained from scratch on Billboard Hot 100 audio are applied to Korean Melon chart songs. Korean chart songs from the 1960s through the 1980s are consistently inferred as belonging to earlier Billboard eras, by a median of about four to five years, while the same models remain unbiased on held-out Billboard audio. The offset then halves at the 1990s, to roughly two to three years, and holds there through the 2000s. Reverse inference shows a complementary narrowing, and the pattern holds across architectures and seeds. We interpret these results as reflecting how globally circulating pop styles were locally adopted and progressively synchronized. The framework can be applied to other pairs of chart cultures beyond the US-Korea case examined here.
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