Theoretical Foundations of Data Science I DSC 40A, Winter 2026 at UC San Diego π
Winter 2026
PCYNH 106
TUE & THUR 5:00PM - 6:20PM
Read the syllabus! Extra credit questions on the Midterm and Final will come from the syllabus. Check it out here . Office hours are listed under the Calendar tab.
Waitlist students: You are expected to attend from Day 1 and keep up with all course material. I accept all qualified students (those who meet prerequisites and have departmental approval). Only HDSI and the registrar can officially enroll you.
π§βπ« Tue Jan 6 LEC 1 Introduction to Modeling (LIVE) blank filled
HW Homework 0 (not due!)
π§βπ« Thu Jan 8 LEC 2 Empirical Risk Minimization blank filled recording
HOPS Hands-On Problem Solving 1
HW Homework 1 Released (due Jan 18, 11:59 pm)
π§βπ« Fri Jan 9 DISC Go over HW0 and LaTeX
π§βπ« Tue Jan 13 LEC 3 Comparing Loss Functions blank filled recording
HOPS Hands-On Problem Solving 2
π§βπ« Thu Jan 15 LEC 4 Simple Linear Regression blank filled recording
HOPS Hands-On Problem Solving 3
π§βπ« Fri Jan 16 DISC Groupwork 1
π§βπ« Tue Jan 20 DEMO Demo 2 - Linear Regression
HW Homework 2 Released (due Feb 1, 11:59 pm)
LEC 5 Simple Linear Regression, Continued blank filled recording
π§βπ« Thu Jan 22 HOPS Hands-On Problem Solving 4
LEC 6 Dot Products and Projections blank filled recording
π§βπ« Fri Jan 23 DISC Groupwork 1 Review
π§βπ« Tue Jan 27 HOPS Hands-On Problem Solving 5
LEC 7 Orthogonal Projections blank filled recording
π§βπ« Thu Jan 29 HOPS Hands-On Problem Solving 6
LEC 8 Regression and Linear Algebra blank filled recording
π§βπ« Fri Jan 30 DISC Midterm Review
π§βπ« Tue Feb 3 HOPS Hands-On Problem Solving 7
HW Homework 3 Released (due Feb 25, 11:59 pm)
LEC 9 Multiple Linear Regression blank filled recording
π§βπ« Thu Feb 5 EXAM Midterm Exam
π§βπ« Fri Feb 6 DISC Go over Midterm Answers
π§βπ« Tue Feb 10 LEC 10 Feature Engineering, Gradient Descent blank filled recording
π§βπ« Thu Feb 12 DEMO Demo 3 - Loss Surface Navigation (Gradient Descent)
HOPS Hands-On Problem Solving 8
LEC 11 Gradient Descent, Continued blank filled recording
π§βπ« Fri Feb 13 DISC Groupwork 2
π§βπ« Tue Feb 17 HOPS Hands-On Problem Solving 9
LEC 12 Foundations of Probability blank filled recording
HW Homework 4 Released (due Mar 6, 11:59 pm)
π§βπ« Thu Feb 19 DEMO Demo 5 - Interaction Terms
π§βπ« Fri Feb 20 DISC Groupwork 2 Review
π§βπ« Tue Feb 24 HOPS Hands-On Problem Solving 10
LEC 13 Combinatorics blank filled recording
π§βπ« Thu Feb 26 LEC 14 More Combinatorics Examples blank filled recording
HOPS Hands-On Problem Solving 11
π§βπ« Fri Feb 27 DISC Groupwork 3
π§βπ« Tue Mar 3 LEC 15 Bayes' Theorem and Independence blank filled recording
HOPS Hands-On Problem Solving 12
π§βπ« Thu Mar 5 LEC 16 Independence and Conditional Independence blank filled recording
HOPS Hands-On Problem Solving 13
π§βπ« Fri Mar 6 DISC Groupwork 3 Review
π§βπ« Tue Mar 10 LEC 17 NaΓ―ve Bayes blank filled recording
DEMO Demo 7 - Multi-Armed Bandit (Bayesian Updating)
π§βπ« Thu Mar 12 LEC 18 More NaΓ―ve Bayes, Review blank filled recording
LEC 19 Conclusion (LIVE)
π§βπ« Fri Mar 13 DISC Final Exam Review
π§βπ« Thu Mar 19 EXAM Final Exam