carolyn wang（王家悦）

hello there! i’m an undergraduate at uc berkeley (go bears!) majoring in computer science and minoring in politics, philosophy & law (ppl) as part of the eecs honors program.

i’m currently conducting nlp research at bair, teaching cs189 (cal’s machine learning course), and wandering the intellectual burrow between ml and social systems. the little voice in my head is:

enamored, quite hopelessly, with good stories. you'll very often find me writing or taking a nap...
interested in knowledge tracing w/llms, the social sciences, languages, and endurance sports
an adoring lover of music gigs, novels, giving (and receiving) hugs, the new yorker, jorts, and funny pranks

carolyn wang

"education is not the filling of a pail, but the lighting of a fire." -- william butler yeats

fall 26 office hours: wed 10-11am (gateway 1040 bear)
note: i'm leading all cs189 course logistics for this semester, so most of my resources will be posted on ed! see below for my materials from previous semesters. past students have found my cs189 discussion videos especially helpful :)

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cs 189 / 289a: introduction to machine learning (spring 2026)

course websiteeecs189.org

discussion videosyoutube.com/@cs189-sp26

disc01: math reviewvideo / blank / solution / notes

disc02: machine learning designvideo / blank / solution / notes

disc03: k-means, multivariate gaussiansvideo / blank / solution / notes

disc04: gradients, GMMs, ridgevideo / blank / solution / notes

disc05: bias-variance decompositionvideo / blank / solution / notes

disc06: logistic regressionvideo / blank / solution / notes

disc07: gradient descentvideo / blank / solution / notes

midterm (disc 01-07 content)video / blank / solution

disc08: convergence, approximationvideo / blank / solution / notes

disc09: back propogation, cnnsvideo / blank / solution / notes

disc10: transformers, attentionvideo / blank / solution / notes

disc11: positional encoding, kv cachingvideo / blank / solution / notes

disc12: finetuning, generative modelsvideo / blank / solution / notes

cs 61a: structure & interpretation of computer programs (fall 2025)

course websitecs61a.org

getting startedlab00 / lab slides / disc00 / disc slides

functions, controllab01 / lab slides / disc01 / disc slides

env diagrams, hofslab02 / lab slides / disc02 / disc slides

recursionmidterm 1 / disc03 / disc slides

tree recursion, abstractionlab03 / lab slides / disc04 / disc slides

treeslab04 / lab slides / disc05 / disc slides

iterators, generatorslab05 / lab slides / disc06 / disc slides

object oriented programminglab06 / lab slides / disc07 / disc slides

linked listslab07 / lab slides / disc08 / disc slides

concurrencymidterm 2 / disc09 / disc slides

scheme, scheme listslab8 / lab slides / disc10 / disc slides

interpreterslab9 / lab slides / disc11 / disc slides

macroslab10 / lab slides / disc12 / disc slides

sqllab11 / lab slides / disc13 / disc slides

naclo: north american computational linguistics olympiad

websitenaclo.org

zoink (2015, round 1)video / blank / solution

junk mail: part 1 (2021, round 1)video / blank / solution

junk mail: part 2 (2021, round 1)video / blank / solution

set in stone: part 1 (2020, round 1)video / blank / solution

set in stone: part 2 (2020, round 1)video / blank / solution

set in stone: part 3 (2020, round 1)video / blank / solution

chess tournament: part 1 (2016, round 1)video / blank / solution

chess tournament: part 2 (2016, round 1)video / blank / solution

we are all molistic in a way (2007, round 1)video / blank / solution