查询词典 sufficient statistic

This paper selects futures contracts of copper in SHFE, hard wheat in ZCE and soybean in DCE as samples and,by means of principle of maximum entropy,generalized extreme value distribution and K-S goodness-of-fit test, makes an empirical study on the characteristics of statistic distribution of time interval between extreme volatilities of return rate series of commodity futures in China.

本文基于极值理论，以沪铜、大连大豆和郑州硬麦期货为研究对象，应用最大信息熵原理、广义极值分布和K－S拟合检验，实证分析了我国商品期货收益率极端波动的时间间隔的统计分布特征。

Methods 1 Statistic methods including factorial experiment was carried out to optimize the major conditions for sample management, and the feasible negative and positive control for FCM analysis of CD62p expression were check out.

测定22℃保存液体血小板不同保存期再表达CD62p的能力，以评价该指标在血小板质量监测以及新的保存方法研究中的应用价值。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Statistic analysis, was performed using spss 11.5 and the falconer method.

应用spss 11.5软件、falconer公式对资料进行统计学处理和分析。

The purpose of this thesis is to design a system which can analyze the image of fauces and separate the image with different region of fauces automatically. By collecting a lot of normal cases and symptom cases with others complications for statistic analysis and comparison to finding an objective way to assist the physician make a precise diagnosis with computer. The contributions of this thesis may be summarized as follows.

本论文的研究目的在於发展一套可以处理喉部影像的分析技术，可以自动分离出诊断上的特徵区域，并且大量收集正常无症状及合并有各种情形并发症之咽喉胃酸逆流案例进行统计分析与比较，藉由电脑以更客观的方法辅助医师做出更精准的诊断结果。

The necessity and reality of designing of a personal matters management system are expounded at the first. And then, the design of such a system in Chinese dBASE Ⅱ and a function module suitable for input recording, command file updating, querying, statistic analysing, browsing and printing,...

首先阐明中文dBASEⅡ人事档案管理系统的必要性和现实性，然后阐明中文dBASEⅡ人事档案管理系统的设计思想，系统功能模块(包括记录输入模块，更新命令文件，查询功能，统计、浏览、打印功能，报表打印功能)的实现，最后，指出系统所具有的六个特点，即系统的通用性，建库的选择性，更新资料的保密性与多样性，查询的各种组合性，报表格式的灵活性以及统计打印的二维性等。

The image coefficient is modeled by using linear phase of statistic B-spline base filter.

因此，抑制相干斑噪声，是进一步利用SAR图像进行实时图像匹配和智能目

The technique statistic analysis based on the male fleuret competition of the 9th game in 2001, showed that the swing puncture had important status and effect in the fleuret competition.

通过对 2 0 0 1年第九届全运会男子花剑团体决赛和个人前八名的技术统计分析，说明甩剑刺技术在当今男子花剑比赛中的实用价值，重要地位与积极作用。

Results: No statistic significant differences between children sex and receiving or non-receiving this benefit factor, however, significant difference were showed at medical providing territories and insured fee factor pConclusions: In the selected children, parent's decision making and territory variance (ex: cities vs. townships gave influence of children to receive teeth fluoridation and incidence rate of caries.

研究结果发现，儿童接受涂氟与否与性别无统计差异；但与就医地区别、全民健保投保金额组别呈现统计上显著差异p依本研究显见涂氟可减少健保牙科医疗利用，确可达到降低医疗费用支出的目的，惟其所减少之健保医疗费用支出，尚未符合公务支付涂氟成本之效益。

This paper use Monte Carlo method in Excel to dynamically simulate the service status and waiting time of university dinning room windows. This method based on "random number" is usually used to solve practical problems with complicate probability distribution. This paper simulates one window and two windows of a dinning room separately. Through 1000 simulations and statistic analysis to get conclusions, thus bring up reference frame to decision maker.

用蒙特卡洛法在Excel上对大学食堂的窗口服务状态和排队等待问题进行模拟，分别模拟了食堂在开设一个窗口和两个窗口的情况下学生的排队问题，通过1000次模拟的统计分析得出，该方法具有简便、易行、实用性强的特点，为决策者提供了参考依据。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！