One of the key problems of web mining is web relevant mining.

网页挖掘中的一个主要问题是对网页进行相关性挖掘。

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This Study must include adequate information on mining, processing, metallurgical, economic, and other relevant factors that demonstrate, at the time of reporting, that economic extraction is justified.

FORBES: But Every Generation Does Indeed Exhaust Its Mineral Reserves

Using text-mining algorithms, researchers culled more than 10, 000 mentions and summarized the most relevant comments.

WSJ: How Big Data Is Changing the Whole Equation for Business