Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.
估计GM(1,1)模型中的参数通常采用最小二乘准则,而在模型精度检验时又常采用平均相对误差。
Comparing with test data, the simulation model shows high precision, thus could be used to study the dynamic characteristic of high back pressure electricity-generating diesel engines.
通过与试验数据对比,该仿真模型具有较高的精度,可以用于研究高背压发电用柴油机在动态工况下的运行特性。
To assure the precision of evaluations and predictions, a good software reliability model should have the function of describing test coverage and can reflect the fault repair process.
为了保证可靠性模型的估测精度,好的软件可靠性模型应该包括对测试覆盖的说明,并且能够反映软件的错误修复过程。
Finally, the dynamic mathematic model has been put into the simulation-testing platform to test the static simulation precision and dynamic response specific characteristic of the model.
并且将本模型嵌入到现有仿真平台进行仿真试验,得到一系列的仿真数据,用以检验模型的精确度和动态响应特性。
D-optimal test scheme was presented for calibrating second-order coefficient K2 of PIGA (Pendulous Integrating Gyro Accelerometer) error model on a precision centrifuge with counter-rotating platform.
提出了一种在带有反转平台的精密离心机上标定陀螺加速度计误差模型二次项系数K 2的D -最优试验方案。
The paper presented a two-position test method for calibrating error model coefficients of PIGA (pendulous integrating gyro accelerometer) using precision centrifuge without counter-rotating platform.
提出了一种在不带有反转平台的精密离心机上标定陀螺加速度计误差模型系数的两位置测试方法。
Using the neural networks technique and small test work, a high precision model for the non linear reflection of variables has been established and achieved satisfactory results.
应用神经网络技术可以较少的试验工作量,建立高精度的变量间非线性映射模型,取得了满意的效果。
Test result shows that compared with traditional similarity model of word frequency, the weighted semantic similarity model improves the precision obviously.
实验表明,本文提出的基于语义树的加权语义相似度模型与传统的词频相似度模型相比,准确率有明显提高。
The neural network model of high precision was obtained by the training of orthogonal test method.
通过正交试验法对模型的训练,得到了高精度的神经网络模型。
Through the model external-test, the average precision of volume model was over 90% and the estimation precision of stand net growth was over 80%.
通过模型的外检验,蓄积平均精度可达90%以上,林分纯生长量的估计精度可达80%以上。
The results of test show that this inverse model feed-forward compensator has effectively reduced the non-linear error of the system and has improved the control precision of GMA.
实验结果表明,逆模前馈补偿器有效地减小了系统的非线性误差,提高了执行器的控制精度。
The model reflects the actual dynamic characteristics and real operation state of pneumatic tires in motions. The comparison made with test data shows a high precision of the model.
考虑胎体的复杂变形之后,模型能真实地反映轮胎的力学特征和物理实质,理论模型与试验结果的比较也表明,该模型的精度足以反映轮胎的非稳态试验侧偏特性。
The utility model has the advantages of high sensitivity of a circuit and high precision of a test result, and can be used for high pressure and extra-high voltage systems.
本实用新型电路灵敏度高,测试结果精度高,可用于高压和超高压系统中。
The gray modeling method need less test data and is of high precision in prediction. Therefore, the gray model is feasible to a real time test of the strain or stress concentration problem.
根据六种典型应力集中试件的应变电测试验,用电测数据建立灰色模型,预测应力集中问题的峰值应力。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
经实测数据与所建模型对比验证,延性破坏、脆性破坏模式本构模型精度较高,可为岩石损伤评估提供依据。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
经实测数据与所建模型对比验证,延性破坏、脆性破坏模式本构模型精度较高,可为岩石损伤评估提供依据。
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