performance n. 1.执行,实行,履行;完成;实现;偿还。 2.行为,动作,行动;工作。 3.性能;特性。 4.功绩;成绩。 5.演奏;弹奏;演出;(驯兽等的)表演;把戏。 6.【物理学】演绩。 a performance test 【机械工程】性能试验。 high performance 高度准确,性能优良。 an afternoon performance 午后的演出,日戏。 two performances a day 一天演两场。 a fine [wretched] performance 成绩好[坏]。 put a monkey through its performances 使猴子玩种种把戏。 performance in [of] horse-manship 马戏;马术表演。
Define [ identify ] ( internal and external ) customer concerns issues formally as qualitative requirements and quantitative performance criteria with numerical targets supporting service levels at optimal tco 详细说明[识别] (内部和外部)客户一般关心的问题正如具有数字的目标的定性需求和定量的性能标准,其在优化的tco中支持服务级别。
In this paper , the quantitative performances of the above models are compared using experiments . because the cosine measure is not able to reflect the structural similarity between documents , a new retrieval model based on texttiling is proposed in the paper 本文对这些已知模型在相似搜索问题上的性能做出了实验对比,并且针对余弦模型无法考虑文档结构相似性的缺点,提出了基于texttiling技术的相似检索模型,该模型考虑了文档的子主题结构信息。