The thesis analyzes the advantages and drawbacks of the two kinds of algorithms and proposes a mixture model which introduces the feature driven methods (K-D Forest) into vocabulary tree.

本文在分析了两类方法的优缺点后，提出了将特征驱动的方法(K - D森林)引入词汇树模型的混合模型。

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Propolis or bee glue is a resinous mixture that honey bees collect from tree buds, SAP flows, or other botanical sources.

蜂胶是一种树脂混合物，是蜜蜂从树芽、树汁液，或其他植物上收集而来的产品。

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