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The algorithm needn't generate candidate itemsets and scan database, because it employs FP-Tree to store trasanctions in database compressedly and takes full advantage of the characteristic of FP-Tree.Consequently,the complexity of space and time the algorithm used is reduced obviously in the procedure of data mining.In a thorough experimental analysis of our algorithm on real and synthetic data,we isolate the effect of the individual components of the algorithm. Our performance numbers show that MFP-Miner outperforms previous work.

该算法利用频繁模式树来压缩存储数据库中的事务,并充分利用频繁模式树的特点,在挖掘最大频繁项目集的过程中不需要产生候选项目集和扫描数据库,从而减少了算法在挖掘过程中使用的存储空间和计算时间,通过实验结果显示,该算法的性能优于同类算法。

On the investigation, main factors impacting success of A company product development management is product development progress, product development flow management, process monitor, organization structure, product development quality , product development cost, management mechanism of product development project, resource match, and establishes ISM of factors, the degree of base factors impacting the success of product development management decreasingly is product development management flow, management mechanism of product development project, organization structure of product development management with AHP method.

其次,借鉴业界经验并通过高层领导小组研究讨论,确定了A公司产品开发管理效率的评价指标,对评价指标采用逐对比较法判断指标的相对重要性;通过调查得出影响A公司产品开发管理效率的八个主要因素,它们分别是产品开发进度、产品开发流程、过程监控力度、组织结构、产品开发的质量、产品开发的成本、产品开发项目的管理机制和资源匹配的齐全度。建立了影响因素的解释结构模型,运用层次分析法得出影响产品开发管理效率的根本因素,并按影响程度,由大到小排序为产品开发管理的流程、产品开发项目的管理机制、产品开发管理的组织结构。

The site is located in the heart of Shaba Hotel zone in the east corner of the middle Haitang Bay in Hainan: it faces the South Sea and artificial island reef, possessing the excellent view of Wuzhizhou Island; to the east, it is near the fingerlike wetland, and the seafront landscape channel throughout the island provides good availability ; there is planned to be open space on the north and south sides, which offers unique confidentiality and exclusive enjoyment, and creates better sea view.

该项目基地位于海南海棠湾中部东隅沙坝酒店地带核心位置:东临南海及人造岛礁,拥有对蜈支洲岛优越的视线;西靠指状湿地,贯穿全岛的滨海景观道提供良好的可达性;南北两侧规划大尺度开放空间,为本项目提供了独特的私密与独享性,同时创造了更好的面海视野。

In only 12 month, Tanan Shenran 150 thousand M3 per day LNG project has finished the work from the very beginning to the very end. This project has created a milestone on China gas history, it is not only the first on constructing period, but also make many first on technology: The first self-owned intellectual property LNG plant which is nitrogen expanding and recycling refrigerating in China; the first plant which are all made in China; the first plant which use the parallel connection temperature expander refrigerate technology; the first use the pressure dryness vaporizer technology on Nitrogen gas liquefaction and purity system; the first use the deep fat stove technology in purity system; the piston nitrogen compressor is the biggest in China and etc.

短短12个月内,泰安深燃日产15万立方米液化天然气工程项目完成了从立项到投产的全部建设工程,该套项目的顺利投产完成创造了中国燃气史上的一个新的里程碑,不仅在建设周期上创造了第一,在技术方面同样创造了多个第一:我国首个具有自有知识产权的氮气膨胀、循环制冷液化天然气设备,填补了国内在这一技术领域的空白,对我国名族天然气液化事业的发展产生了积极的推动作用;首次实现设备国产化达到100%;首次采用并联双温区的膨胀机制冷技术;首次将等压干燥脱水技术应用于天然气液化系统、净化系统;首次在净化系统采用了导热油炉、单炉双温区共用形式;所采用的单级双列活塞式氮气压缩机位国内最大等技术。

In only 12 month, Tanan Shenran 150 thousand M3 per dayLNG project has finished the work from the very beginning to the very end. This project has created a milestone on China gas history, it is not only the first on constructing period, but also make many first on technology: The first self-owned intellectual property LNG plant which is nitrogen expanding and recycling refrigerating in China; the first plant which are all made in China; the first plant which use the parallel connection temperature expander refrigerate technology; the first use the pressure dryness vaporizer technology on Nitrogen gas liquefaction and purity system; the first use the deep fat stove technology in purity system; the piston nitrogen compressor is the biggest in China and etc.

短短12个月内,泰安深燃日产15万立方米液化天然气工程项目完成了从立项到投产的全部建设工程,该套项目的顺利投产完成创造了中国燃气史上的一个新的里程碑,不仅在建设周期上创造了第一,在技术方面同样创造了多个第一:我国首个具有自有知识产权的氮气膨胀、循环制冷液化天然气设备,填补了国内在这一技术领域的空白,对我国名族天然气液化事业的发展产生了积极的推动作用;首次实现设备国产化达到100%;首次采用并联双温区的膨胀机制冷技术;首次将等压干燥脱水技术应用于天然气液化系统、净化系统;首次在净化系统采用了导热油炉、单炉双温区共用形式;所采用的单级双列活塞式氮气压缩机位国内最大等技术。

Being the largest governmental investor in public utilities and infrastructure facilities in Shanghai, UDIC will unify its investment in projects in suburban districts by means of DFV

上海城投作为上海市政府最大的公用事业与基础设施项目投资主体,其对于上海区项目的开发投资统一纳入DFV运作范畴。

With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.

本论文本着科技创新、服务于生产实践的精神,以设计价格低廉,性能优越、结构合理简单的L-band EDFA为目标,依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目,展开了如下工作:首先,介绍了掺铒光纤放大器的工作原理,归纳总结了基于速率方程基础的EDFA的各种理论模型,分析比较了各个模型的特点和适用场合,最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础;针对实际实验条件提出了修正的EDFA模型的数值计算方法;创新地提出了增益—噪声系数全局分析法,直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系,并对各种EDFA的性能作了全面的比较;第二,介绍了掺铒光纤放大器特性参数的定义与测量方法,重点介绍了噪声系数和增益系数的测量方法及实验装置;介绍了组成掺铒光纤放大器各组件的特性测量方法,重点介绍了测量掺铒光纤参数的方法和实验装置;第三,针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求,我们创新地提出了四种不同的L-band EDFA结构,按设计思路可以分为两大类:一类是基于单抽运二级泵浦法,这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构;基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构;基于单根光纤光栅、泵浦分配、两段级联的EDFA;另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法,如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。

The company now produces 5 series of products, among which KJ-1000 series infrared mammary diagnosis apparatus and KJ-8200 digital electronic vaginoscope were authorized by the provincial government as the province level high-tech products in 2001, KJ-2000 electroencephalograph terrain system and KJ-6200 series microwave therapeutic apparatus were ranked among province level "torch projects" in 2001 and 2002 respectively.

公司目前有九大类在线产品,其中& KJ-1000系列红外乳腺诊断仪&、&KJ-9000型微波肿瘤热疗仪&荣获江苏省&高新技术产品&称号;&KJ-2000型脑电地形图仪&、&KJ-6200型微波治疗仪&被列为江苏省&火炬计划项目&;&KJ-9000型微波肿瘤热疗仪&被列为国家&火炬计划项目&。

Accordingly, viatic business should value additional service project more, let a tourist have bigger choice limits looks with more options.

因此,旅行商应更加重视附加服务项目,让游客有更大的选择范围和更多的选择项目。

Be in our country however each district in recent years in urban construction, governmental official taps a head through ", pat the chest," that pats buttock " the 3 urban project that take " means to come down certainly, holding very large proportion however, as a result builds a project not less is in ground of shoe the goose " burns money ".

然而在我国各地近年来的城市建设中,政府官员通过&拍脑袋、拍胸脯、拍屁股&的&三拍&方式确定下来的城市发展项目,却占据着很大的比重,以致不少建设项目都是在徒劳无益地&烧钱&。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。