estimator是什么意思 estimator的中文翻译、读音、例句

Possible explanation:

Estimator is a noun that refers to someone or something that makes an estimate, which is a rough calculation or an approximate assessment of a quantity, value, or likelihood. Here are some aspects of the word that an English teacher could explore:

1. Etymology: The word estimator comes from the Latin word aestimare, which means "to value or estimate." The suffix -or indicates an agent or a doer. The word entered English in the 16th century, but its current sense of a person who estimates dates from the 19th century.

2. Types of estimators: There are many kinds of estimators, depending on the field, the purpose, the method, and the assumptions. Some common types are:

- Cost estimator: A specialist who calculates the expenses of a project or a product, such as materials, labor, overhead, and profit. Example: The cost estimator for the new building estimated that it would cost at least $10 million to build.

- Time estimator: A person who predicts how long a task or a process will take, based on experience, data, or intuition. Example: The time estimator for the software development team estimated that it would take six months to complete the new feature.

- Risk estimator: A tool or a model that evaluates the probability and impact of potential risks or hazards, such as in finance, insurance, medicine, or safety. Example: The risk estimator for the stock market predicted a 20% chance of a recession next year.

- Parameter estimator: A statistical method or a formula that estimates the values of unknown parameters in a model or a sample, such as mean, variance, or regression coefficients. Example: The maximum likelihood estimator of the population proportion was 0.35, with a margin of error of 0.05.

- Machine learning estimator: A function or an algorithm that trains a machine learning model on some data and predicts the outcomes of new data, such as in classification, regression, or clustering. Example: The gradient boosting estimator achieved an accuracy score of 0.85 on the test set.

3. Attributes of estimators: An estimator can be evaluated by several criteria, such as:

- Bias: the tendency of the estimator to overestimate or underestimate the true value of the parameter.

- Variance: the variability of the estimator's estimates across different samples or datasets.

- Efficiency: the ability of the estimator to use the available information effectively and minimize the mean squared error of the estimate.

- Consistency: the property of the estimator that ensures that it converges to the true value of the parameter as the sample size increases.

- Robustness: the resistance of the estimator to outliers, influential points, or violations of assumptions.

4. Use of estimator in discourse: Estimator is a versatile and common word that can appear in many contexts, such as:

- Technical writing: Estimators are frequently mentioned in technical reports, research papers, manuals, and guidelines that involve calculations, simulations, or predictions. Example: The estimator used in this study was based on linear regression with control variables.

- Business communication: Estimators are useful in business proposals, contracts, invoices, and financial statements that require cost analysis, budgeting, and forecasting. Example: Our cost estimator can give you an accurate estimate of your remodeling project within 24 hours.

- Academic discourse: Estimators are a common topic in academic discussions, seminars, and presentations that focus on statistics, economics, engineering, or machine learning. Example: The estimator's bias was reduced by adding a ridge penalty to the regression model.

- Popular media: Estimators can also appear in news articles, blog posts, podcasts, and social media memes that relate to current events, sports, or entertainment. Example: The estimator for the Oscars predicted that La La Land would win Best Picture, but Moonlight actually won.

Here are some example sentences that illustrate the use of estimator in different contexts:

- The estimator for the population mean was unbiased but with high variance, so we used a more efficient estimator that reduced the mean squared error by 30%.

- The estimator for the construction project underestimated the labor costs by 20%, causing a delay and a budget overrun that led to customer complaints.

- The estimator for the weather forecast predicted a 70% chance of rain tomorrow, but the actual rainfall was only 10 millimeters, which showed the estimator's overconfidence.

- The estimator for the student loan repayment plan gave me an estimate of $300 per month, but I found out that I could pay only $200 per month and still be able to pay off the loan in 10 years.

- The estimator for the movie box office gross was too optimistic, as the actual revenue was only half of the estimate, due to poor reviews and competition from other movies.

英 [ˈestɪmeɪtə(r)] 美 [ˈɛstəˌmeɪtər]

中文翻译：估算师，评估员

例句：

1. He works as an estimator for a construction company.

他在一家建筑公司担任估价师。

2. The insurance estimator came to assess the damage to our car.

保险评估员来评估我们车辆的损坏情况。

estimator通常被翻译为"估计器、评价者"的意思，在日常中也代表"化"的意思，在线读音是['estimeitә]，estimator来源于英语，在《牛津英汉双解词典》中，共找到56个与estimator相关的例句。

Estimator的翻译

1.估计器

例句:But, the fee estimator only appears to work for domestic tickets in the US. (然而，这个费用估计工具只能应用于美国的国内机票。)

2.评价者

例句:A multitaper spectral estimator is built based on the minimization of a cost function. (利用最小化代价函数的方法推导了一种谱分析的多窗口。)

3.化

例句:Had proven under certain situations, the MRSS average value estimator is more practical than SRS, is more effective. (证明了在一些情形下，MRSS的均值估计比SRS更实用，更有效。)

4.估计者、化

例句:Bayesian maximum a posterior DOA estimator based on Gibbs sampling (GSBM) is further investigated. (翻译:进一步研究了基于吉布斯抽样的贝叶斯最大后验概率方位估计方法。)

用法及短语

estimator一般作为名词使用，如在difference estimator(差量估计量)、distance estimator(估距关系)、durbin estimator(杜宾估计式)等常见短语中出现较多。

例句

1. Had proven under certain situations, the MRSS average value estimator is more practical than SRS, is more effective. (翻译:证明了在一些情形下，MRSS的均值估计比SRS更实用，更有效。)

2. Bayesian maximum a posterior DOA estimator based on Gibbs sampling (GSBM) is further investigated. (翻译:进一步研究了基于吉布斯抽样的贝叶斯最大后验概率方位估计方法。)

3. We also try to improve pathwise estimator in order to reduce standard error. (翻译:我们还将尝试改进逐路径估计量，以求减小标准误差。)

4. The RBFN based estimator is more effective and higher precision than that based on BPNN. (翻译:结果表明，基于智能神经网络的齿槽结构参数预估器具有良好的精度和效率。)

5. With frequency bias increasing, estimated bias and variance of adaptive frequency estimator (AFE) enlarge. (翻译:随着频偏的增大，自适应频率估计的偏差和方差也随之增大。)

6. Influence Measure Assessing Influence of Data on Almon Estimator and Generalized Coefficient Correlation (翻译:判定数据对Almon估计的影响度量与广义相关系数)

7. The new service simplifies the array of airline fees with the first fully integrated Fees Estimator in Europe, says the company. (翻译:该公司说，新的服务通过欧洲首个全面整合的FeesEstimator工具简化了航空公司的票价显示方式。)

8. Strong Consistency Rates of Conditional t-Quantiles Kernel Estimator for Mixing Sample (翻译:相依样本条件t-分位数核估计的强收敛速度)

近义词&反义词

estimator作为名词的时候，其近义词以及反义词有s、estimators等。