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BSc Actuarial Science and Mathematics / Course details

Year of entry: 2021

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Course unit details:
Multivariate Statistics and Machine Learning

Unit code MATH38161
Credit rating 10
Unit level Level 3
Teaching period(s) Semester 1
Offered by Department of Mathematics
Available as a free choice unit? No

Overview

Multivariate statistical models and methods are essential for analysing complex-structured and possibly high-dimensional data from any areas of science and industry, ranging from biology and medicine, and genetics to finance and sociology. Multivariate statistics also provides the foundation of many machine learning algorithms.

In the first part of this module covers the foundations of multivariate data analysis, e.g., multivariate random variables, covariance and correlation, and multivariate regression. In addition, related approaches such dimension reduction and latent variable models are discussed.

The second part of the course is concerned with multivariate approaches for statistical learning in supervised and unsupervised settings, including techniques from machine learning, and their application in pattern recognition, classification, and high-dimensional data analysis.

Pre/co-requisites

Unit title Unit code Requirement type Description
Probability 2 MATH20701 Pre-Requisite Compulsory
Statistical Methods MATH20802 Pre-Requisite Compulsory
Please note

Desirable

Good working knowledge in the R statistical programming language.

Students are not permitted to take more than one of MATH38161 or MATH48061 for credit in the same undergraduate year.  Students are not permitted to take MATH48061 and MATH68061 for credit in an undergraduate programme and then a postgraduate programme.

Aims

To familiarise students with the fundamental concepts and ideas underlying multivariate statistical data analysis methods and related supervised and unsupervised machine learning approaches for pattern recognition and classification, as well as with their practical implementation and application using the R statistical programming language.

Learning outcomes

On successful completion of the course students will be able to:

  • use the programming language R for multivariate data analysis and graphical presentation
  • apply dimension reduction techniques such as PCA and CCA
  • perform clustering and classification using tools from both statistics and machine learning
  • make good choices among available parametric and nonparametric approaches
  • analyse high-dimensional data sets with suitable regularisation techniques

Syllabus

  • Multivariate normal model: distributional properties, estimation of covariance and correlation matrix both in large and small sample settings (using likelihood and regularised/shrinkage estimation), connection with multivariate regression. [4]
  • Dimension reduction and latent variable models: whitening transformations, Principle Components Analysis (PCA), Canonical Correlation Analysis (CCA), Factor Analysis (FA). [4]
  • Unsupervised learning / clustering: model-based clustering (finite normal mixture models), algorithmic approaches (e.g. K-means, hierarchical clustering). [4]
  • Supervised learning / classification: Diagonal, Linear, and Quadratic Discriminant Analysis (DDA, LDA, QDA) and regularised versions for high-dimensional data analysis.  Further approches to classification (eg support vector machines). [4]
  • Nonlinear and Nonparametric models: splines, decision trees, random forest. [4]

Assessment methods

Method Weight
Other 20%
Written exam 80%
  • Coursework: (2 written projects): weighting 20%
  • End of semester examination: weighting 80%

Feedback methods

Computer labs will provide an opportunity for students to try out the methods on real data and to get feedback from the instructor. Coursework projects also provide an opportunity for students to receive feedback. Students can also get feedback on their understanding directly from the lecturer, for example during the lecturer's office hour or after class.

Recommended reading

Study hours

Scheduled activity hours
Lectures 22
Practical classes & workshops 5
Tutorials 5
Independent study hours
Independent study 68

Teaching staff

Staff member Role
Korbinian Strimmer Unit coordinator

Additional notes

This course unit detail provides the framework for delivery in 20/21 and may be subject to change due to any additional Covid-19 impact.  

Please see Blackboard / course unit related emails for any further updates

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