查询词典 culture drift
- 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。
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The experiment shows that,there is phase drift of low frequency in the digital image seriel acquired by CCD camera and frame grabber,different CCD has different drift characteristic and level;the phase drifts are not identical even in the same image line,the phase drift of neighboring locations in an image line has distinct correlation;the drift levels ...
实验表明:经 CCD Camera和图像卡采集的数字图像序列中存在着低频的图像抖动,即位相漂移。而且不同的 CCD Camera具有不同的漂移特点和程度,甚至在同一个图像行内的漂移也不完全一致。一般在图像行内相近的位置之间,位相漂移有明显的相关性,不同的图像行之间的漂移的程度相同,但没有相关性。最后本文还给出了一种位相漂移的修正方法
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The main work and achievements are as following:An overview of gyros drift is presented. Its cause is analyzed and it is categorized into three types: constant drift, slope drift and random drift.
主要的工作及完成的任务如下:首先对陀螺仪的漂移进行了概述,分析了其产生的原因,并把它分为三种:常值漂移,斜坡漂移及随机漂移。
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The invention discloses a high-voltage P-type metal oxide semiconductor, including a P-type substrate, a deep N-well is arranged on the P-type substrate, an N-well drift region and a P-type drift region are arranged on the deep N-well, an N-type contact hole, a P-type source and a field oxide layer are arranged on the N-well, a P-type drain and the field oxide layer are arranged on the P-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the N-well is smaller than the grid oxide layer part which is positioned above the P-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly.
本发明公开一种高压P型金属氧化物半导体管,包括P型衬底,在P型衬底上设有深N型阱,在深N型阱上设有N型阱和P型漂移区,在N型阱上设有N型接触孔、P型源及场氧化层,在P型漂移区上设有P型漏及场氧化层,其特征在于位于N型阱上方的栅氧化层部分的厚度小于位于P型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层。
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The invention discloses a high-voltage N-type metal oxide semiconductor, including a P-type substrate, a P-well drift region and an N-type drift region are arranged on the P-type substrate, a P-type contact hole, an N-type source and a field oxide layer are arranged on the P-well, an N-type drain and the filed oxide layer are arranged on the N-type drift region; the invention is characterized in that the thickness a grid oxide layer part which is positioned above the P-well is smaller than the grid oxide layer part which is positioned above the N-type drift region and a thin grid oxide layer and a thick thin grid oxide layer are respectively formed accordingly, a P-type impurity injection region is arranged in the P-well, and the P-type impurity injection region is positioned below the thin grid oxide layer.
本发明公开一种高压N型金属氧化物半导体管,包括P型衬底,在P型衬底上设有P型阱和N型漂移区,在P型阱上设有P型接触孔、N型源及场氧化层,在N型漂移区上设有N型漏及场氧化层,其特征在于位于P型阱上方的栅氧化层部分的厚度小于位于N型漂移区上方的栅氧化层部分并由此分别形成薄栅氧化层和厚薄栅氧化层,在P型阱内设有P型杂质注入区且该P型杂质注入区位于薄栅氧化层的下面。
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The logic way of thought of this thesis is culture, teacher culture and teacher culture of balkanization. This thesis starts with the definition of teacher culture, and teacher groups, and teacher culture of balkanization. Secondly, on the basis of definition and comparing domestic and overseas studies, this thesis analyzes the features of teacher culture of balkanization and its form of representation. Thirdly, this thesis explores the reason of the forming of teacher culture of balkanization from three angles of view, namely individual angle, organizational angle and social angle. Fourthly, this thesis analyzes the advantages and disadvantages of teacher culture of balkanization in a dialectic way. Fifthly, the thesis ends up with principles and strategies for modifying teacher culture of balkanization.
本文首先对教师文化、教师派别以及派别主义教师文化做了概念上的界定,在此基础上,参照中西方研究深入剖析了派别主义教师文化的特征,归纳了派别主义教师文化的具体表现形式;从个人层面、组织层面以及社会层面三个维度详实探讨了派别主义教师文化的形成原因;以辩证的观点全面分析了派别主义教师文化存在的合理性与弊端;在对合理性和弊端全面分析的基础上主要针对派别主义教师文化的弊端提出了矫正原则与策略;在对全文整体把握的高度上,本文认为应当采用审慎的变革态度和方式对派别主义教师文化进行恰当取舍,对于实质上是团体个人主义的派别主义文化,其解决的根本途径是走向合作。
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Mainstream culture and none-mainstream culture, elate culture and mass culture, national culture and regional culture, Chinese culture and western culture composed for levels latterly and eight fields of content vertically, which requires us to classify the target audience according to their cultural background and provide more individualized communication strategy to serve for their core-value demand.
要求我们传媒针对目标受众群体文化背景进行选择分类与迎合,实施更为个性化的窄播策略,更为集中地服务于目标受众的中心价值。
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Results The data of A were higher in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration. The data of pH were lower in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while higer in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration.
结果 在0.5%、1%、2%浓度下,赤藓糖醇培养基的A值较木糖醇培养基高,pH值较木糖醇培养基低,说明变异链球菌在含0.5%、1%、2%赤藓糖醇的培养基内的生长和产酸能力明显较相同浓度木糖醇培养基高。
- 相关中文对照歌词
- Vulture Culture
- Kill 'Em Wit
- Youth Culture Killed My Dog
- Black Culture
- Drift Away
- Soul Teacher
- Cash, Culture And Violence
- Loony Balloon
- Vulture Culture
- Fight The Ban
- 推荐网络例句
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But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.
但是,这是不可能的,只要是搞市场经济,是有风险的任何行动。
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We're on the same wavelength.
我们是同道中人。
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The temperature is usually between 300 and 675 degrees Celsius.
温度通常在摄氏300度到675度之间。