The data is relatively concentrated C. The data has a lot of outliers D. The data is inaccurate 相关知识点: 试题来源: 解析 B。方差较小表明数据相对集中。选项 A,数据高度分散时方差较大。选项 C,方差大小与异常值数量并非直接相关。选项 D,方差小不能说明数据不准确。反馈 收藏 ...
A dataset is a collection of data that can be used for analytics or to train machine learning models.
In data cleaning, if there are missing values in a dataset, what is a common approach? A. Ignore the missing values. B. Replace the missing values with the mean of the non-missing values. C. Remove the entire row or column with missing values. D. Leave the dataset as it is. ...
If there is no translation for a particular word or sense, a short description can be given in the target language, so speakers of that language still can understand what the word means; e.g. there is no equivalent of the Arabic wordin English, so the Arabic-English dictionary gives perso...
What is a data set? A data set, sometimes spelleddataset,is a collection of related data that's usually organized in a standardized format. Data sets are used for analytics,business intelligence, artificial intelligence (AI) model training and a variety of other use cases. Data sets can vary...
Data analytics as a practice is focused on using tools and techniques to explore and analyze data in real-time or near-real-time to uncover hidden patterns, correlations, and trends. The goal is predictive and prescriptive analysis, using advanced techniques to make accurate, dynamic, and forwar...
An epoch in machine learning refers to one complete pass of the training dataset through a neural network, helping to improve its accuracy and performance.
The role of scalars Another way of describing a vector like it’s a scientific thing is this: A tuple that has scalars (numbers or values from a dataset). According toBritannica, examples of scalars include density, energy, volume, time, and mass. ...
What's new in Power BI April 2025 Mobile layout auto-create is now generally available The auto-create mobile layout feature is now GA! This feature enables you to easily create a mobile-optimized layout for any new or existing report page, with just the push of a button! Check out our...
Many decades ago Patrick Suppes argued rather convincingly that theoretical hypotheses are not confronted with the direct, raw results of an experiment, ra