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unitjava(½ð±Ò+5, ·­ÒëEPI+1): ¸Ðл£¬ÓÃsorting»¹ÊÇranking£¿ 2011-11-26 19:33:03
After adding the characteristic information of ¡°food requirements¡±, it acted on sorting the searching results. Then, adding the characteristic information of ¡°medical records in recent one month¡±, the system would filter out the searching results which was not suitable for the user. Therefore, the recall ratio was lower than that of the pure key words.
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