qrn99 / CourseWorks

Various assignments completed in undergraduate studies

Course-works

Various assignments completed in undergraduate courses

Second Year

1. HPS200 Science and Values
   • Essay 1 - The Criteria on Theory Evaluation
   • Essay 2 - Ethics view: Categorical Imperative vs. Utilitarianism
   • Final Essay - Value Judgments on Organ Transplantation
2. PHL244 Human Nature
   • Paper 1 - Plato's argument on the soul cannot be destroyed
   • Paper 2 - Peter Singer’s argument on most people in the affluent world morally ought to be giving far more money to humanitarian aid than they currently are
   • Paper 3 - Harry Frankfurt’s argument on the Principle of Alternate Possibilities
3. HPS390 History of Mathematics After 1700
   • Essay - The notion of proof on the Pythagorean Theorem (Greek vs Chinese)

Third Year

1. MAT335 Fractals, Chaos, and Dynamics
   • Coding + Math Problem Sets (temporarily private)
   • Essays with the theme of Fractals, Chaos & Dynamics, and a final essay that integrate the three essays as a whole
2. STA302 Methods of Data Analysis I
   • R coding project with a video presentation on
     • MiniProject#1: running simulations to examine the properties of the least square regression, its inference tests, and how it models the true population relation:
       • the properties of unbiased estimators (sample mean, variance) under the impacts of sample size and error variances
       • whether the construction of a confidence interval produces consistent results with its definition
     • MiniProject#2: running simulations to examine the properties of multivariable linear regression and diagnostic check to observe and understand:
       • how correlated predictors affect the sample estimators
       • how model diagnostics work when the true model is non-linear
   • A formal report (final project) on:
     • how to pick a linear model for systolic blood pressure given the NHANES dataset using various model selection techniques as well as model diagnostics & validation
     • discuss the effect of chosen predictors on the combined systolic blood pressure reading
3. HPS390 History of Mathematics Before 1700
   • Essay: History of US' New Math Education Movement

Forth Year

1. CSC207 Software Design
   • Worked on the backend for the messaging system and TextUI for the Convention Manager program (group project) in Java and testing with JUnit
   • Check the separate repository for details
2. STA314 Statistics Machine Learning I
   • Coded associated functions in R with an R markdown file of vignette on how to:
     • A1: Use k-mean clustering algorithm to produce a cross-stitch pattern guidance given an image
     • A2: Use a logistic lasso model (with coordinate descent and tuning with cross validation) to perform classification on data by tidymodels workflow