Statistical Methods for Imbalanced Data in Ecological and Biological Studies

Komori, Osamu/ Eguchi, Shinto

ISBN 10: 4431555692 / ISBN 13: 9784431555698

Published by Springer Verlag, 2019

About this Item

1st edition. 59 pages. 9.25x6.25x0.50 inches. In Stock.

Seller Inventory # x-4431555692

Bibliographic Details

• Title: Statistical Methods for Imbalanced Data in Ecological and Biological Studies
• Publisher: Springer Verlag
• Publication Date: 2019
• Language: English
• ISBN 10: 4431555692
• ISBN 13: 9784431555698
• Binding: Paperback
• Condition: Brand New
• Weight: 0.13 kilograms

About this title

Synopsis

This book presents a fresh, new approach in that it provides a comprehensive recent review of challenging problems caused by imbalanced data in prediction and classification, and also in that it introduces several of the latest statistical methods of dealing with these problems. The book discusses the property of the imbalance of data from two points of view. The first is quantitative imbalance, meaning that the sample size in one population highly outnumbers that in another population. It includes presence-only data as an extreme case, where the presence of a species is confirmed, whereas the information on its absence is uncertain, which is especially common in ecology in predicting habitat distribution. The second is qualitative imbalance, meaning that the data distribution of one population can be well specified whereas that of the other one shows a highly heterogeneous property. A typical case is the existence of outliers commonly observed in gene expression data, and another is heterogeneous characteristics often observed in a case group in case-control studies. The extension of the logistic regression model, maxent, and AdaBoost for imbalanced data is discussed, providing a new framework for improvement of prediction, classification, and performance of variable selection. Weights functions introduced in the methods play an important role in alleviating the imbalance of data. This book also furnishes a new perspective on these problem and shows some applications of the recently developed statistical methods to real data sets.

About the Author

Osamu Komori, The Institute of Statistical Mathematics, 
Shinto Eguchi, The Institute of Statistical Mathematics