data preprocessing
[计] 数据预处理;资料预处理
2025-09-06 22:22 浏览次数 6
[计] 数据预处理;资料预处理
to introduce the general structure and definition of the data preprocessing phase of web logs mining.
讨论了web使用记录挖掘的预处理方法的一般流程及相关定义。
it first describes the data cleaning and data selection briefly, then discusses the data preprocessing and data representation as detail as possible, at last, introduces the data set management.
首先简要介绍数据清洗与选择的基本方法,然后详细论述数据预处理、数据表示和数据集管理等方面的问题。
different spectral data preprocessing methods and spectral regions have influences on the performance of model established.
不同光谱数据预处理方法和谱区范围,影响建立定量分析模型的质量。
this paper gives a brief description of softwares for multiprogramming operation and data preprocessing by means of a single-user microcomputer.
本文简要阐述了一套利用单用户微机,实现多程序分时并行和观测数据的预处理程序。
a data preprocessing method based on multi continuous attribute discretization.
基于多连续属性离散化的数据预处理方法。
a method of data preprocessing based on scattered point cloud was proposed.
提出了一种基于散乱点云的数据预处理方法。
in the process of test, principal component analysis is used as data preprocessing to extract the feature index from vibration signal statistic features as the input of svdd classifier.
在测试的过程中,主成分分析作为数据预处理,提取特征指数从振动信号的统计特征作为输入svdd分类。
in the data mining or machine learning field, a data preprocessing procedure is often needed to eliminate errors, noises, in-consistent data or missing data that are contained in the dataset.
在数据挖掘以及机器学习等领域,都需要涉及一个数据预处理过程,以消除数据中所包含的错误、噪声、不一致数据或缺失值。
the method research of envisat-1 asar data preprocessing includes radiometric calibration, geometrical correction and speckle reduction.
主要的研究内容如下: (1)asar数据预处理方法研究,包括辐射定标、几何校正和斑点噪声的去除。
finally, after extracting and adjusting the spot and background intensity information, data preprocessing is carried out by using the scatter plot and the ma plot.
最后,在数据提取方面,对基因芯片图像的靶点信号强度与背景信号强度进行了提取与校正,并且运用散点图与ma图对数据进行了预处理。
taking concrete chips and practical interface circuits for example, this paper discusses the problems of data preprocessing that generally exist in digital control system.
本文以具体的芯片、实用的接口电路为例,讨论了数字控制系统中普遍存在的数据预处理问题。
one of the steps of data preprocessing is dimensionality reduction.
维数约简是数据预处理的步骤之一。
classify the log file data and prepare for later data analysis, in the case of a large number of log data and based on data preprocessing rules.
在大量日志数据情况下,依据数据预处理的规则,把日志文件的数据内容分类,为后面的数据分析做好準备。
data preprocessing is analyzed and studied in this paper.
论文对此类数据预处理进行了分析和研究。
this paper discusses the data preprocessing of common information platform based on atms.
对面向atms共用信息平台的数据预处理技术进行了探讨。
data preprocessing technique may have a direct influence on the data mining effect.
而数据预处理技术的好坏直接影响数据挖掘的结果。
the function of the data preprocessing module is to distinguish and process abnormal data from sampled data.
数据预处理模块主要用于识别采集信号中的异常点,并进行相应的处理。
this method accomplishes the data preprocessing through data acquisition and data processing two stages, enhances data quality and accelerates the data processing.
该方法通过数据获取与数据处理两个阶段来完成数据预处理,提高了导入数据的质量,加速了数据处理过程。