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ParadeDB uses BM25 instead of TF-IDF for relevance scoring. BM25 is generally considered to be a more accurate relevance score.
回波信号——经目标（飞机、无人机、鸟类）反射后抵达接收器的同源信号
Xing-Dong Yang, Dartmouth College
#MeToo运动席卷哥伦比亚 性骚扰指控激增
· 李娜 · 来源：study导报
