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Plane Answers to Complex Questions: The Theory of Linear Models

為了解決Component vector的問題，作者Christensen, Ronald 這樣論述：

This textbook provides a wide-ranging introduction to the use and theory of linear models for analyzing data. The author’s emphasis is on providing a unified treatment of linear models, including analysis of variance models and regression models, based on projections, orthogonality, and other vec

tor space ideas. Every chapter comes with numerous exercises and examples that make it ideal for a graduate-level course. All of the standard topics are covered in depth: ANOVA, estimation including Bayesian estimation, hypothesis testing, multiple comparisons, regression analysis, and experimental

design models. In addition, the book covers topics that are not usually treated at this level, but which are important in their own right: balanced incomplete block designs, testing for lack of fit, testing for independence, models with singular covariance matrices, variance component estimation, be

st linear and best linear unbiased prediction, collinearity, and variable selection. This new edition includes a more extensive discussion of best prediction and associated ideas of R2, as well as new sections on inner products and perpendicular projections for more general spaces and Milliken and G

raybill’s generalization of Tukey’s one degree of freedom for nonadditivity test.

Component vector進入發燒排行的影片

機械學習分類演算法在線性致動器缺陷元件檢測之應用

為了解決Component vector的問題，作者許志安 這樣論述：

將線性滑軌與精密滾珠導螺桿的功能整合在單一組件的線性致動器，因兼具高剛性與行程精度，常應用於自動化產業的精密定位、量測..等設備。但因組成元件較多且複雜，元件的組裝品質常是決定線性致動器性能的關鍵。目前，大多數的製造商雖可透過麥克風，以量測線性致動器運轉的噪音值分辨不良品，但後續尚需大量人工檢查瑕疵元件，以確認產品不良的原因。本研究希望透過感測器與機械學習分類法，達到快速且自動化檢測出不良品，並可分辨缺陷元件狀態。滑塊螺帽是由線性滑軌之滑塊與滾珠螺桿之螺帽組成，為線性致動器最常發生不良品的組件，尤其是滾珠間隙、迴流器與螺帽的段差..等。本研究以三軸加速計安裝於滑塊螺帽，以及將麥克風安裝在實驗

平台上，透過往復運轉蒐集振動訊號與聲音訊號，並轉換為時間域與頻率域特徵值，還透過主成分分析(PCA)探討其特徵特性。機械學習分類法部份，使用K-近鄰演算法(KNN)與支持向量機(SVM)，對4類滾珠間隙、4類迴流器段差缺陷狀態、4類段差缺陷程度，進行分類訓練與測試並比較其效益。因分類數目高達52種，將耗費較大建模與測試時間，不利快速線上檢測，所以本研究採用三階段的模型數據分析，同時保有相當的分類準確度且大量降低演算時間。實驗結果顯示，透過三階段的分類架構，振動與聲音訊號的最佳分辨率為SVM-最佳高斯核82.59%與94.06%。驗證本研究模型對於線性致動器缺陷元件檢測與分類的可行性。

Data Science Revealed: With Feature Engineering, Data Visualization, Pipeline Development, and Hyperparameter Tuning

為了解決Component vector的問題，作者Nokeri, Tshepo Chris 這樣論述：

Get insight into data science techniques such as data engineering and visualization, statistical modeling, machine learning, and deep learning. This book teaches you how to select variables, optimize hyper parameters, develop pipelines, and train, test, and validate machine and deep learning mode

ls. Each chapter includes a set of examples allowing you to understand the concepts, assumptions, and procedures behind each model.The book covers parametric methods or linear models that combat under- or over-fitting using techniques such as Lasso and Ridge. It includes complex regression analysis

with time series smoothing, decomposition, and forecasting. It takes a fresh look at non-parametric models for binary classification (logistic regression analysis) and ensemble methods such as decision trees, support vector machines, and naive Bayes. It covers the most popular non-parametric method

for time-event data (the Kaplan-Meier estimator). It also covers ways of solving classification problems using artificial neural networks such as restricted Boltzmann machines, multi-layer perceptrons, and deep belief networks. The book discusses unsupervised learning clustering techniques such as t

he K-means method, agglomerative and Dbscan approaches, and dimension reduction techniques such as Feature Importance, Principal Component Analysis, and Linear Discriminant Analysis. And it introduces driverless artificial intelligence using H2O.After reading this book, you will be able to develop,

test, validate, and optimize statistical machine learning and deep learning models, and engineer, visualize, and interpret sets of data.What You Will LearnDesign, develop, train, and validate machine learning and deep learning modelsFind optimal hyper parameters for superior model performanceImprove

model performance using techniques such as dimension reduction and regularizationExtract meaningful insights for decision making using data visualizationWho This Book Is ForBeginning and intermediate level data scientists and machine learning engineers

一個植基於特徵選取與樣本選取技術的自動選股模型

為了解決Component vector的問題，作者洪郁翔 這樣論述：

本論文研究台灣上市上櫃公司之財務指標相關資料，提出以分群演算法（Cluster）區分財務體質良好與不佳的分群結果，搭配特徵選取方法（Feature Selection, FS）或是樣本選取方法（Instance Selection, IS）結合隨機森林（Random Forest）機器學習方法探討股票預測之成效，本研究選取訓練資料為2001年至2018年在台灣加權指數有多頭和空頭股市經歷兩個大週期循環分別為2007年金融海嘯以及2018年中美貿易大戰，並以預測之日為建構日以相同金額買入並且以2018年3月至2022年3月之資料進行投資策略回溯測試。其實驗結果顯示Cascade Simple

K-Means加上樣本選擇（Instance Selection）的遺傳基因演算法（Genetic Algorithm, GA）結合隨機森林（Random Forest）預測結果其報酬率為79%為最優，其次，自我組織設映圖SOM（Self-Organizing Map）加上過採樣方法(Synthesized Minority Oversampling Technique ,SMOTE)其報酬率為75%。本實驗結果在於Cascade Simple K-Means和SOM兩種分群演算法搭配任何一個特徵選取或是樣本選取並結合隨機森林演算法結果都有72%以上報酬率，均優於大盤指數的62%，甚至在EM（

Expectation-Maximization algorithm）演算法也有三種方法（IB3、IS-GA、PCA）可以超過大盤報酬率。