查询词典 thresholds

In particular the reasoning efficiency and precision of the expert system are improved further through self-learning the thresholds of monitoring parameters.

专家系统与一般的信息管理系统的区别不仅在于知识从流程中的分离(知识和知识使用是分离的)，更在于这些知识主要是经验知识，因此获取知识困难，开发专家系统要比一般的信息管理系统更复杂。

On the basis of introduction of the elementary principles and features of Particle Swarm Optimizational- gorithm,a new multi-thresholds segmentation method based on PSO is proposed.

在对粒子群优化算法的基本原理和方法进行简要概述的基础上，提出了一种基于粒子群的多阈值图像分割算法。

We give a simple and practical method to decide on exceedance threshold. Based on the linearity of mean excess function which is a qualitative means,this method uses moment estimate plot to analyze quantitatively the varying trend of shape parameter with changing thresholds.and combines these two means to choose reasonable threshold.

我们给出了确定超越门限的一种简单实用方法，该方法基于平均剩余函数图形的线性性这种定性方法，利用矩估计图定量分析形状参数估计随门限值变化趋势，将两种方法相结合来确定合理的超越门限。

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。

Taste aversion learning; taste buds; taste discrimination; taste epithelium; taste modifiers; taste panel evaluation; taste perception; taste pore; taste preferences; taste processing; taste receptors; taste receptor neurons; taste stimuli; taste thresholds; taste transduction; foliate; fungiform; vallate; circumvallate; umami taste; bitter principle; sweet taste; bitter taste; sour taste; salty taste; gustation; gustatory cortex; gustatory nerve; gustatory neurons; gustatory nucleus; gustatory sensilla; gustatory system

味道厌恶学习；味蕾；味道辨别力；味道上皮；味道调节剂；品尝小组评价；味道感受；味孔；味道偏爱；味道加工；味觉感受器；味觉感受器神经元；味道刺激；味觉阈值；味道转换；层状的；真菌状的；轮廓形的；围绕的；鲜味；苦味素；甜味；苦味；酸味；咸味；味觉；味觉皮层；味觉神经；味觉神经元；味觉核；味觉感器；味觉体系

Using solution culture experiment, discussed the influnce of nitrobenzene to the germinationrates and seedling growth of ten leguminous crops, and results showed that, when the nitrobenzeneconcentration was 1～100mg·L~(-1), it had little influnce to germination rates of leguminous crops,with the increasing of nitrobenzene concentration, emergence rates of leguminous crops decreased,but no significance compared with control, and found that the toxicity of nitrobenzene toleguminous related with the concentration, the thresholds of nitrobenzene toxicity to differentleguminous crops were different, under the test conditions, the inhibition of root was larger thanhypocotyl, according to the relationship between the inhition rates of root and hypocotyl length andthe nitrobenzene concentration, the sensitive order of the ten leguminous crops to nitrobenzenewas:small-seedsoybean＞kidneybean＞Dongnong42＞brownbean＞Dongnong49＞Dongnong46＞ormosia＞french bean＞black bean＞mung bean.

本研究探索了硝基苯对十种豆类作物的发芽率及幼苗生长的影响，结果表明：硝基苯浓度为1～100mg·L~(-1)时，对豆类作物发芽率影响不大，随着硝基苯浓度的增加，豆类作物出苗率有所降低，但与对照差异不显著，研究发现硝基苯对豆类作物的生物学毒性同浓度有关，硝基苯对不同的豆类作物的毒害阈值不同。

In this paper, we propose a new method to implement full adder based on chaos computing. By setting different thresholds and judgment conditions, the full adder is implemented by using only one chaotic unit.

基于混沌计算的思想提出了实现全加器的新方法，通过设定不同的阀值及判断条件，使用一个混沌单元实现全加器。

After studying the characteristics of Particle Swarm Optimization,Particle Swarm Optimization is used in wavelet domain to optimize the thresholds,and garrote shrinkage function is used to process wavelet decomposition coefficients,which overcome the shortcoming of discontinuity of hard-threshold and decreased the fixed bias of soft-threshold.

研究粒子群优化算法的特性，将其应用于小波域，对阈值进行寻优，并使用garrote阈值函数量化小波分解系数，而garrote阈值函数既克服了硬阈值函数的不连续性，也减小了软阈值函数存在的恒定偏差。

Review articles only; taste buds; taste aversion learning; taste discrimination; taste epithelium; taste modifiers; taste panel evaluation; taste perception; taste pore; taste preferences; taste processing; taste receptors; taste receptor neurons; taste stimuli; taste thresholds; taste transduction; umami taste; bitter principle; sweet taste; bitter taste; sour taste; salty taste; gustation; gustatory cortex; gustatory nerve; gustatory neurons; gustatory nucleus; gustatory system; gustatory sensilla

唯一的综述；味蕾；味道厌恶学习；味道辨别力；味道上皮；味道调节剂；品评小组评估；味道感知；味孔；味道偏爱；味道加工；味觉感受器；味觉感受器神经元；味道刺激；味觉阈值；味道转换；鲜味；苦素；甜味；苦味；酸味；咸味；味觉；味觉的皮层；味觉神经；味觉的神经元；味觉核；味觉的体系；味觉感器

All people, in a word, would come stumbling over their thresholds, and turning up their amazed and horror-stricken visages around the scaffold.

都会磕磕绊绊地通过门槛，在刑台四周抬起惊惶的面孔。他们会依稀看到那里站著一个人

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷