[{"content":"This page collects the academic and course-related materials on Undertide. Individual notes keep their original URLs, but this page is the stable entry point for browsing them by course and topic.\nCourse Collections STA305 - Design and Analysis of Experiments Experimental design, ANOVA, factorial designs, causal inference, power planning, and exam practice materials.\nSTA414 - Machine Learning II Machine learning notes around probability foundations, Bayesian inference, ELBO, EM, variational inference, graphical models, neural networks, and exam aidsheets.\nSTA437 - Multivariable Statistics Multivariable statistics materials including PCA, factor analysis, ICA, matrix review, midterm and final practice, and a handwritten-digit essay.\nSTA447 - Stochastic Process Stochastic process notes around Markov chains, martingales, optional stopping, Brownian motion, and Ito calculus.\nSTA457 - Time Series Analysis Time series notes covering stationarity, autocovariance, white noise, decomposition, AR/MA/ARMA models, forecasting, and final review material.\nStatistics and Data Work Exploring Influential Factors to Housing via MLE Multiple linear regression model exploration and model-selection workflow.\nData Visualization: Design, Standards, and Implementation English data-visualization foundations, design principles, and implementation notes.\n数据可视化 —— 设计，标准，实现技术 中文数据可视化笔记，和英文 data-visualization page 对应但不强制作为逐句翻译。\n","permalink":"/academics/","summary":"A stable entry point for course notes, study materials, statistics essays, and academic reference pages.","title":"Academic Notes and Course Index"},{"content":"This page is the standing index for active non-academic writing. Archived setup notes, lifestyle reviews, and old media notes stay available by direct URL but are no longer routed through this index.\nMain Categories Site and Blog Notes Site identity and active blog notes.\nProducts and App Documents Personal apps, product design notes, user guides, launch notes, and project reflections.\nApple and Swift Development Swift, SwiftUI, Apple-platform UI work, interaction design, and development-process notes.\nAI, Agents, and Workflow AI behavior principles, AGN, agentic coding, workflow design, and prompt/workflow material.\nAudio Engineering and Music Production Mixing, plugins, synthesizers, music creation, and reflections on audio technology.\nPersonal Notes and Incident Logs Fragmented notes, personal reflections, and incident records that are preserved as direct links.\n","permalink":"/writing/","summary":"A structured index for active non-academic writing, projects, audio notes, and personal essays.","title":"Writing and Projects Index"}]