Familiarity with least squares linear regression
Ability to program in R (preferred) or in Python
Basic knowledge of university-level probability theory, calculus, and linear algebra
Supervised statistical learning involves building a model for predicting an output (response, dependent) variable based on one or more input (predictor) variables. There are many areas where such a predictive question is of interest - for example, Netflix recommendations, self-driving cars, predicting disease status/vulnerability and finding early markers of diseases.
In unsupervised statistical learning, there are only input variables but no supervising output (dependent) variable; nevertheless, we can learn relationships and structures from such data using cluster analysis and methods for dimension reduction.
This course provides a basis for understanding statistical learning techniques and teaches the skills to apply and evaluate them.
The supervised learning methods discussed will include classical and state-of-the-art classification methods: regularized regression (Ridge, Lasso, and other L1- methods), naive Bayes, decision trees, and random forests. We explain the interrelations between these methods and analyze their behavior.
We will also discuss model selection, where we consider both classical and state-of-the-art methods, including various forms of cross-validation.
Concerning unsupervised learning, we consider methods for clustering (i.e., the classic k-means) and dimension reduction methods (like PCA).
an introduction to statistical learning
You will find the timetables for all courses and degree programmes of Leiden University in the tool MyTimetable (login). Any teaching activities that you have sucessfully registered for in MyStudyMap will automatically be displayed in MyTimeTable. Any timetables that you add manually, will be saved and automatically displayed the next time you sign in.
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For more information, watch the video or go the the 'help-page' in MyTimetable. Please note: Joint Degree students Leiden/Delft have to merge their two different timetables into one. This video explains how to do this.
Mode of instruction
Lectures and computer practicals. We will use Brightspace to share all course material.
The final grade is based on (each with a weight of 1/3):
1) a written structured assignment (individual, half way the course)
2) a written structured assignment (individual, at the end of the course)
3) oral presentation regarding the analysis of a data set of students’ own choice (in group, at the end of the course)
Students receive (during the lecture) feedback on the assignments and the oral presentation.
James, G., Witten, D., Hastie, T., & Tibshirani, R. (2021). An introduction to statistical learning: with applications in R. New York: Springer. A free copy and online tutorials are available online
Beaujean, A. A. (2014). Latent variable modeling using R. A step by step guide. New York: Routledge.
Berk, R. A. (2008). Statistical learning from a regression perspective. Springer. (a PDF is available via Leiden University Library)
Kuhn, M. & Johnson, K. (2013). Applied predictive modelling. Springer. (a PDF is available via Leiden University Library)
T. Hastie, R. Tibshirani, J. Friedman (2009). The Elements of Statistical Learning, (2nd edition) (available for free at https://web.stanford.edu/~hastie/Papers/ESLII.pdf)
Bishop, C. M. (2006). Pattern recognition and machine learning (1st edition). Springer.
Murphy, K. P. (2012). Machine learning: A probabilistic perspective. MIT Press.
From the academic year 2022-2023 on every student has to register for courses with the new enrollment tool MyStudyMap. There are two registration periods per year: registration for the fall semester opens in July and registration for the spring semester opens in December. Please see this page for more information.
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