查询词典 loss

At the same time, we prove that the best linear unbiased prediction of a linear predictable variable Qy and the best linear unbiased prediction βn=(X"sV-1Xs)-1 X"sVs-1ys of regression coefficients of the finite populations βn=(X"V-1X)-1X"V-1y are admissible under matrix loss function and in the class of the linear predictions and the class that contains all predictions, and under quadratic loss function in the class of the linear predictions.

在线性预测类和一切预测类中是可容许预测，而在二次损失函数下其在线性预测类中是可容许预测。

Liquor-making enterprises in Sichuan had suffered great loss from May.12 Wenchuan Earthquake. The main reasons for distilleries' loss were analyzed and the following recommendations were put forward for the reconstruction and the restoration of the damaged distilleries: 1. layout design of workshops strictly followed relative national requirements and anti-earthquake grade of key workshop enhanced advisably; 2.the techniques of shock isolation, shock absorption and shock prevention etc. should be applied in...

在5·12汶川大地震中，四川白酒企业遭到了重大损失，分析了其主要原因，并建议白酒厂在新建、改建、扩建时满足以下条件：①严格按照国家有关规范中规定设计，对重点车间适当提高设防等级；②逐步将隔振、减振、制振等技术应用到白酒厂房屋设计与生产设备安置中；③贮存容器安置要科学合理，并采取适当的保护措施，大型贮存容器的设计要考虑底部抗压问题，以防止次生灾害的发生。

It is proved that the least squareestimators of linear estimable functions of regression coefficients areadmissible under matrix loss and minimax. The necessary and sufficientexistence conditions are derived for the uniformly minimum riskequivariant estimators of linear estimable functions ofregression coefficients under an affine group and a transitive group oftransformations respectively. It is also proved that there are no UMREestimators ofthe covariance matrix and variance under an affine groupof transformations and quadratic loss functions.

本文证明了回归系数的线性可估函数的最小二乘估计是极小极大的且在矩阵损失函数下是可容许的；还分别在仿射变换群和平移群下导出了存在回归系数的线性可估函数的一致最小风险同变估计的充要条件，并证明了在仿射变换和二次损失下不存在协方差阵和方差的 UMRE 估计。

Weight loss of 1 to 2 pounds a week may seem like an agonizingly slow pace, but if improving your health is a long-term goal, the speed of your weight loss isn't important.

每周只减一两斤也许是一个让人苦闷的缓慢的过程，但是如果增进健康是你的长期目标，那么减肥的速度就不太重要了。

Although some of the loss of ammonia can be recycled time after time in the production of solid ammonium phosphate, the problem of ammonia loss is still not solved, furthermore the relevant equipments for recycling are required, which result in more investment and operating cost.

虽然在制固体磷铵生产过程中，损失的一部分氨可以多次回收利用，但仍然存在氨损失，且增加了相应的回收设备，其投入和操作成本也有所增加。

Amnesiac is a loss of memory, but scientists in Britain have found that it can mean a loss of imagination as well.

健忘症就是丧失记忆，但是英国科学家发现健忘同时也意味着失去想象力。

Effects of angular frequency on storage modulus, loss modulus, loss factor and dynamic viscosity! were investigated.

用扩展流变仪测定了PET，PET-GF，PET-GF-EGMA熔体的储能模量、损耗模量、损耗因子和动态黏度等随角频率的变化规律。

In the paper, the principle and matrix description of the switch is expounded, and the aplanatism of signal lights is also testified, and the insert loss and polarization dependent loss is analysed.

本文将阐述光开关的原理与矩阵分析，论证这种自由空间光开关的等程性，讨论新型光开关结构与性能(插入损耗与偏振相关损耗)。

The reason the default produced is analyzed and a new latest available unscheduled channel with smallest void algorithm is presented. The performance of the two algorithms is simulated. The results show that in LAUC-SV algorithm the effective window of the packet loss versus unit delay time of fiber delay lines is expanded significantly and the packet loss ratio is decreased about 100.5. The algorithm complexity of the LAUC-SV is only increased arithmetically with LAUC. Both the algorithms can not support delay reservation protocol effectively.

分析了产生此缺陷的原因并提出了一种LAUC算法的改进算法LAUC-SV算法，采用仿真的方法分析比较了两种算法的性能，结果表明LAUC-SV算法比LAUC算法的丢包率下降100.5，且LAUC-SV算法下的丢包率关于光纤延时线单元延时时间的工作窗口与传统LAUC相比大大展宽，而前者的算法复杂度与后者相比仅呈算术增长，但两算法均不能有效支持延时预约协议。

In addition to dealing with recovery latency of temporal relation packet loss, ARMER reduces recovery latency of reliable multicast in the condition of spatial relation loss occurs.

ARMER协议引入了"前向的差错检测"机制，实现了主动节点支持的差错检测，有效降低了协议在发生空间相关丢包情况下的差错恢复的延迟。同时，ARMER协议也沿用了主动缓存以支持本地恢复的策略，因此，使得协议可在发生两种类型丢包情况下都维持较小的恢复延迟。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？