The goal of this paper is to give a brief summary of the current unsupervised word sense disambiguation techniques in order to facilitate future research. First of all, the significance of unsupervised word sense disambiguation study is introduced. Then, key techniques of various unsupervised word sense disambiguation studies at home and abroad are reviewed, including data sources, disambiguation methods, evaluation system and the achieved performance. Finally, 14 novel unsupervised word sense disambiguation methods are summarized, and the existing research and possible direction for the development of unsupervised word sense disambiguation study are pointed out.
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Data from diverse sources, including geochemical evidence preserved in seafloor sediments, indicate that the Late Cretaceous climate was very mild.
来自不同来源的数据，包括保存在海底沉积物中的地球化学证据，都表明晚白垩世的气候非常温和。
Data from diverse sources, including geochemical evidence preserved in seafloor sediments, indicate that the Late Cretaceous climate was milder than today's.
来自不同来源的数据，包括存留在海底沉积物中的地球化学依据，表明晚白垩纪的气候比如今的要温和。
You can manipulate the worksheet by adding columns and rows, including data from other sources, creating formulas for computations, and so on.
您可以通过添加列和行、包括其他来源的数据、创建用于计算的公式等，从而操作工作表。
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