查询词典 data-base
- 与 data-base 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Article 7 State organs, enterprises, public institutions, other organizations, individual industrial and commercial households, individuals and other statistical investigation objects must abide by this Law and the relevant state provisions and authentically, accurately, completely and timely provide the data needed by statistical investigation, and may not provide any unauthentic or incomplete statistical data or delay or refuse the report of statistical data.
第七条 国家机关、企业事业单位和其他组织以及个体工商户和个人等统计调查对象,必须依照本法和国家有关规定,真实、准确、完整、及时地提供统计调查所需的资料,不得提供不真实或者不完整的统计资料,不得迟报、拒报统计资料。
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This paper emphasized on discussing the technology of data mining in CRM. Data mining has the characteristic of distilling unknown and useful information and knowledge from mass and unperfected data. This characteristic is used to analyze the gigantic database in order to find good patterns which can forecast the client's purchase action, help the corporations solve any problem emerged in the mutual actions between the corporations and clients, guide the corporations to make reactions to the protean markets.
讨论了面向CRM的数据挖掘技术,在CRM实施过程中,运用数据挖掘能够从大量的、有噪音的数据中发现潜在的、有用的知识的特点,对CRM的庞大数据库进行分析,从中发现能够预测客户购买行为的模式,用以解决企业同客户进行交互活动时遇到的各种问题,指导企业对瞬息万变的市场做出及时的反应。
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In order to solve this problem, an improved pyramid technique based on fuzzy clustering is put forward. This new strategy uses a certain fuzzy clustering scheme on the original data sets at first, and then it applies pyramid technique on each cluster. By this means, the pyramid technique can be available in not only uniform data sets but also ununiform data sets.
为此,提出了一种改进的基于模糊聚类的金字塔技术,并将其用于高维划分策略,先对数据集进行模糊聚类处理,然后针对每个聚类进行金字塔划分,从而较好地实现了对非均匀分布数据的高维划分。
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A character-codes model based pattern recognition method by using amplitude data of targets frequency response is proposed after the establishment of high frequency response equation of radar targets. The method uses the same unvariant character-codes to express the same target of different angles and uses sequential separating of regions of target's reference variables to obtain multiple coding vectors of all regions for every target. The category and pose of target can be determined after a two-staged classification processing such as coding processing of target range profile data and errors correcting processing of coded data. The two-stage classification results are used to target identification as posterior hypothesis to be tested by sufficient convincing and necessary convincing. The character-codes model based pattern recognition method is also adaptive to variation of target angles and controllable in error probability. Time-consuming and complicated iterative computation is not necessary in the train process of pattern recognition.
首先建立了雷达目标的高频频率响应方程,这种方程将目标多散射中心理论与目标局部谐振理论有机地结合起来;进而提出了目标多频响应结构成像方法,这种方法将瑞利区频率响应或谐振区频率响应曲线的不同部位用各种不同的近似方法去逼近,通过特征谱估计方法将目标的局部频响特征与宽带距离响应特征结合起来;然后提出了一种基于姿态角变化区域的序贯划分与多模匹配的特征编码识别方法,这种方法具有能适应目标姿态角的变化以及能控制识别的差错概率α等优点,在目标识别时只需要目标在少数有限个频率激励下的幅频响应数据。
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Geophysical characteristics of Ordovician carbonate rock were studied using drilling data. Impedance is affected mostly by material properties and reservoirs types, to a negligibly extent by lithology and flow. Compact layers and minor\|fracture reservoirs of Ordovician carbonate rock have characteristics of high density, high velocity and high impedance, and the prediction of minor fractures reservoir is difficult by the general seismic ways. Big fractures and fractured\|vuggy and vuggy and cavity reservoirs of Ordovician carbonate rock have characteristics of minor density and low velocity and low impedance in central Tarim basin, which obviously different from the surrounding rock and produce obvious characteristics in seismic data, so reservoirs can be predicted by applying general seismic data.
根据已钻井资料,对塔中地区上奥陶统良里塔格组岩石地球物理特征进行了研究,结果表明:物性、储层类型对波阻抗影响最大,岩性、流体对波阻抗影响较小;奥陶系碳酸盐岩致密层和小裂缝型储层具有密度大、速度高、波阻抗值大的特点,利用地震常规预测手段较难预测出小裂缝型储层,而塔中地区奥陶系碳酸盐岩大裂缝型、裂缝-孔洞型、孔洞型、洞穴型储层具有密度小、速度低、波阻抗值小的特点,与围岩具有较为明显的差异,在地震上可以产生明显的响应,可利用常规地震资料来预测这种类型储层。
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Therefore, there is a possibility for improving the performance of non-real-time data traffic while still meeting the QoS of service requirement for real-time CBR traffic. The DOCSIS is established as the primary HFC network data communication standard. The intended service allows transparent bi-directional transfer of Internet Protocol traffic between the Cable Modem Termination System in cable system headend and Cable Modem in customer locations with significantly high data rate.
DOCSIS HFC网络的宽带性能使得传输高质量的实时音视频数据成为可能,实时可变比特率视频业务是宽带HFC网络的主要应用之一,实时VBR视频业务具有严格的延时和延时抖动要求,然而当前的DOCSIS HFC网络只能提供高速Internet接入,只支持有限的服务质量保证,现有的协议和方法不适合上行传输实时VBR视频业务。
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For low permeability oilfields, radial flow straight-line portion should not appear in producer measuring data during shut-in build up tests. A practical method to interpret formation parameters based on well testing data at early fillup period has been established With the application of this kind of method, ideal interpretation results can be obtained when the measure pressure data lie above and under semilog straight-line portion, and the formation parameters can be interpreted more reliably.
对于低渗透油田,在通常的关井压力恢复测试中,油井测压资料不能出现径向流直线段,针对这种情况建立了一种用早期续流段试井资料解释地层参数的实用方法,通过计算续流量利用褶积分析方法解释早期试井资料,可对实测压力数据点落在半对数直线段上方和下方的两种情况都收到较理想的解释效果,能解释出比较可靠的地层参数。
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Data from the Michelson Interferometer for Passive Atmospheric Sounding on board the European research satellite,Environmental Satellite is used to analyze the event,and comparison with the NCEP temperature data and ozone sonde measurement.The results show that difference between MIPAS data and NCEP or ozone sonde measurement is small.
选取了搭载在欧洲环境探测卫星ENVISAT上的对地遥感观测仪器麦克耳逊干涉被动大气探测仪的观测数据,首先利用臭氧探空资料和再分析气象资料对MIPAS观测的臭氧和温度廓线资料进行了对比验证;其次使用该资料对此次SSW过程进行了研究。
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This method has more practical value. First, this article has introduced the research situation of real-time transportation information collection, including the taxi electronic dispatch system as well as the corresponding technology. Analyzed the mothod of map coordinates transformation and the match method of vehicles localization data, then has analyzed the vehicles localization effective sampling with emphasis according to the drivers driving custom to get the tavel time of the road sections. It has filled the transportation blank region data.With the experiments of real data, explained this algorithm could obtain the road section reasonable travel time, int could describe the road network real-time condition.
本文首先介绍了实时交通信息采集的研究情况,包括电召系统以及相应的技术,分析了地图坐标转换、车辆定位数据匹配方法,然后根据驾驶员行车习惯重点分析了车辆定位有效采样对的获取并在此基础上进行单车路径旅行时间求取、时段内旅行时间求取的算法,填补了交通空白地带数据,并通过路上试验,说明该算法能够得到路段合理的旅行时间,能够描述路网的实时状态。
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Data, depending on the kind of data that makes up the key or data.
数据,根据类型的数据构成的关键或数据。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力