...，这一概念最早于1989 年在美国底特律举行的第11 届国际人工智能联合会议的专题讨论会上提出来的，有多种定义，费亚德 （Fayyad）的定义得到普遍认可：“数据库中的知识发现是从大量数据中辨 识有效的、新颖的、潜在有用的、并可被理解的模式的高级处理过程”。
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纳达尔和费德勒曾七次会师大满贯决赛：三次温布尔登、三次法国网球公开赛和一次澳大利亚网球公开赛。
Nadal and Federer have played in seven Grand Slam finals: three at Wimbledon, three at the French Open and one at the Australian Open.
访问可能要等到新的大使任命，这是被费利德·扎卡利亚称作美国驻外事务处中“最艰难也是最重要的任命”。
A visit might have to wait until a new ambassador is appointed to fill what Fareed Zakaria calls the "toughest and most crucial assignment" in the American foreign service.
“在澳大利亚，我们发现是双胎时，我们都很担心，说实话，”费德勒说。
We found out in Australia that it was twins, and we were very worried, to be honest, "Federer said."
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