culture drift
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- 更多 网络例句 与culture drift相关的网络例句 [注:此内容来源于网络,仅供参考]
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In a database the concept of an example might change along with time which is known as concept drift When the concept drift the classification model built by use of old data is unsuitable for classify new data Therefore concept drift has become a hot issue in data mining in recent years Although many algorithms had been proposed to resolve this problem they can not provide users with the reason of concept drift However a user might be very interested in such rules For example doctors want to find what makes disease change; researchers want to know the reason of the variety of the weather; and decision makers would like to understand why a customer's shopping habit change In this thesis we propose a Concept Drift Rule mining Tree called CDR-Tree to solve this problem CDR-Tree can not only find the rule of concept drift also build the prediction model for both old and new data at the same time
无论在大型资料库或现实生活中,同一资料样本的概念有可能会随著时间的递移而改变,也就是产生所谓的概念漂移。当样本发生概念漂移时,由旧有资料所建构的分类模组将不再适用於预测新获得的资料,因此,近年来概念漂移已成为资料探勘中一项热门的研究议题。虽然已有?多学者提出不同的技术来解决概念漂移的问题,但是这些方法都是利用修正或重建的方式来产生适合新资料的预测模组,并无法提供造成概念漂移的原因。然而对使用者而言,其感兴趣的可能正是这些引起概念漂移的规则,如医生可能想了解引起疾病变化的主因、学者会想要知道气候转变的规则、或是决策者想找出顾客购物习惯改变的因素等。因此,本论文提出概念漂移规则探勘树( Concept Drift Rule mining Tree ),简称CDR-Tree,来解决这个问题。CDR-Tree不但能探测出造成概念漂移的主要原因,亦能同时建立新旧资料的预测模组以供决策者运用使用。
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NJWGY3665 bacterial strain is inoculated in a glucose nutrient culture medium to carry out the slant culture, the culture temperature is 28 to 37 DEG C and the culture time is 2 to 6 days;(2) seed culture: a spore which is cultured on a slant is produced into a single-spore suspension by using sterile water, which is also inoculated in a seed culture medium for culture, the temperature is 28 to 32 DEG C, the rotational speed is 200rpm and the culture lasts for 2 to 6 days;(3) fermentation culture: the seed liquid is inoculated in a fermentation culture medium for culture, the temperature is controlled at 28 to 37 DEG C, the pH is controlled at 6.0 to 9.0, the rotational speed is 180 to 220rpm, the fermentation lasts for 5 to 9 days, so as to obtain the Streptomyces sp., methanol or ethanol is used for the extraction and separation of mycelium through the method of centrifugal separation, then the resin method is adopted for carrying out refining, so as to obtain the peptide antibiotics enramycin.
NJWGY3665菌种接到葡萄糖营养培养基中,进行斜面培养,培养温度28-37℃,培养时间2-6天;(2)种子培养:用无菌水将斜面上培养的孢子制成单孢子悬液,并接种到种子培养基中培养,温度为28~32℃,转速为200rpm,培养2-6天;(3)发酵培养:将种子液接种到发酵培养基中培养,温度控制在28-37℃,pH控制在6.0-9.0,转速180-220rpm,发酵5-9天,得到链霉菌,采用离心分离的方法将菌丝体用甲醇或乙醇进行提取分离,再采用树脂方法进行精制,获得多肽类抗生素安来霉素。
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The author mainly discusses the relationship between the two culture phenomena: culture identification and culture uniform tendency, describes the culture identification in the minds of people in the period of culture globalization, detailedly traces the historical evolvement of culture identification, and expatiates the theory of cultural nationalism 3identification, strong culture identification and entirely westernization identification, at last objectively gives some opinions on the realistic function of western culture in the development of modern society. Meanwhile, the author does not echo what other says, and entirely opposes the what is called culture imperialism or western culture intimidation, on the contrary, the author impersonally analyses some other voices which is arisen with deconstructionism, reminds people must start from national practice, recognize the predominance and shortcoming of one's own national culture, neither narcissism nor self-humiliation.
本文在经济全球化的基础上,分析了经济交往过程中的文化全球化以及文化交往,阐释了文化交往的过程中,不同的文化由始初的相互冲突、对立、差异到相互理解、接受、直至达到认同的发展过程,论述了文化认同与文化趋同两种不同的文化现象之间的相互关系,叙述了在经济全球化、文化全球化时期人们的文化认同的心路,以及文化认同中的种种文化现象,详细地梳理了文化认同的历史演变,阐述了文化民族主义的文化认同、强势文化认同以及全盘西化的文化认同学说,比较客观地评价了西方文化在现代社会发展中的现实作用,同时也比较客观地分析了全球化时期由于解构主义兴起而出现的几个关于文化认同的其他声音,提醒人们要从本国实际出发,认清自己民族文化的历史优势与不足,既不要自恋,也不要自卑。
- 更多网络解释 与culture drift相关的网络解释 [注:此内容来源于网络,仅供参考]
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drift-angle buildup:造斜率
drift 偏差 | drift-angle buildup 造斜率 | drift-flux model 漂移流动模型
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cloud drift wind:云导风
偏移控制:Drift Controlling | 云导风:cloud drift wind | 温度漂移:thermal drift thermal
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drift along:混日子
drift around四处飘荡 | drift along混日子 | drift apart疏远