Mining imperfect data : with examples in R and Python
著者
書誌事項
Mining imperfect data : with examples in R and Python
Society for Industrial and Applied Mathematics, c2020
2d ed.
- pbk.
大学図書館所蔵 全1件
注記
Includes bibliographical and index
内容説明・目次
内容説明
It has been estimated that as much as 80% of the total effort in a typical data analysis project is taken up with data preparation, including reconciling and merging data from different sources, identifying and interpreting various data anomalies, and selecting and implementing appropriate treatment strategies for the anomalies that are found. This book focuses on the identification and treatment of data anomalies, including examples that highlight different types of anomalies, their potential consequences if left undetected and untreated, and options for dealing with them.
As both data sources and free, open-source data analysis software environments proliferate, more people and organizations are motivated to extract useful insights and information from data of many different kinds (e.g., numerical, categorical, and text). The book emphasizes the range of open-source tools available for identifying and treating data anomalies, mostly in R but also with several examples in Python.
Mining Imperfect Data: With Examples in R and Python, Second Edition
presents a unified coverage of 10 different types of data anomalies (outliers, missing data, inliers, metadata errors, misalignment errors, thin levels in categorical variables, noninformative variables, duplicated records, coarsening of numerical data, and target leakage);
includes an in-depth treatment of time-series outliers and simple nonlinear digital filtering strategies for dealing with them; and
provides a detailed introduction to several useful mathematical characteristics of important data characterizations that do not appear to be widely known among practitioners, such as functional equations and key inequalities.
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