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Keywords: Instagram
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Journal Articles
Journal:
Tourism Review
Tourism Review (2022) 77 (4): 1234–1246.
Published: 14 October 2021
...Roman Egger; Joanne Yu 语意大解密：主题模型的比较 研究目的 基于对文本复杂性的兴趣, 本研究以Instagram文本数据为基准, 旨在比较不同主题建模的算法的有效性。 研究方法 本研究以标有 #darktourism的Instagram帖子作为背景, 评估直观理解（LDA）, 相关解释（CorEx）和非负矩阵分解（NMF）在分析与黑暗观光相关的帖子的实用性。 研究结果 CorEx分析出17个新兴的黑暗景点和活动, 亦胜过LDA和NMF。虽然LDA能探讨出较多的主题数, 但它们的内容几乎重复。同样的, 尽管NMF适用于短文本数据, 但它提取出主题相当笼统且不够具体。 原...
