Technical research notes and creative writing, from machine unlearning and fairness to essays, poems and design experiments, by S K Deeraj.https://deeraj.meenhttps://deeraj.me/writing/multilingual-unlearning-position/https://deeraj.me/writing/multilingual-unlearning-position/My position on multilingual unlearning, with the maths behind it. Certify the fact and not the string, close the forget set across languages, and report the worst language instead of the average.Thu, 08 Oct 2026 00:00:00 GMTresearchmachine unlearningmultilingualpositionfairnessS K Deerajhttps://deeraj.me/writing/what-i-am/https://deeraj.me/writing/what-i-am/A wedding crasher, a borrowed car, a fake lawyer and a poet for twenty minutes, on belonging as half real and half theatre.Mon, 21 Sep 2026 00:00:00 GMTcreativebelongingperformancehumourS K Deerajhttps://deeraj.me/writing/unlearning-guarantees/https://deeraj.me/writing/unlearning-guarantees/Notes on (ε, δ)-certified removal, the Newton-step update behind it, and what the guarantee does and does not say about a deployed model.Mon, 14 Sep 2026 00:00:00 GMTresearchmachine unlearningprivacyoptimisationS K Deerajhttps://deeraj.me/writing/notes-on-slow-reading/https://deeraj.me/writing/notes-on-slow-reading/On why I print the papers I most want to understand, and what a margin pencil does that a highlighter pen in a PDF viewer does not.Sun, 30 Aug 2026 00:00:00 GMTcreativereadingprocessattentionS K Deerajhttps://deeraj.me/writing/eighteen-degrees-of-separation/https://deeraj.me/writing/eighteen-degrees-of-separation/From my father's compressor negotiations to a WiFi air conditioner with forty-two buttons, on paying for comfort in installments.Mon, 27 Jul 2026 00:00:00 GMTcreativehumourfamilymoneyS K Deerajhttps://deeraj.me/writing/inheritance-of-inaction/https://deeraj.me/writing/inheritance-of-inaction/Six white shirts, one unused iron, and what we actually inherit from our parents, which turns out to be the anxiety and not the discipline.Sun, 14 Jun 2026 00:00:00 GMTcreativehumourfamilyprocrastinationS K Deerajhttps://deeraj.me/writing/designing-in-two-registers/https://deeraj.me/writing/designing-in-two-registers/What laying out a printed page has taught me about writing a clean evaluation table, and the reverse.Mon, 18 May 2026 00:00:00 GMTcreativedesignprocessresearchS K Deerajhttps://deeraj.me/writing/sand-worth-half-an-hour/https://deeraj.me/writing/sand-worth-half-an-hour/A half-an-hourglass on a grandmother's dining table, and what it took to stop measuring time and start feeling it.Mon, 06 Apr 2026 00:00:00 GMTcreativememoirtimefamilyS K Deerajhttps://deeraj.me/writing/the-last-barber-of-block-e/https://deeraj.me/writing/the-last-barber-of-block-e/A portrait of the man who still cuts hair with scissors, and a shop that resists time by simply refusing to hurry.Mon, 23 Feb 2026 00:00:00 GMTcreativeportraitnostalgiacultureS K Deerajhttps://deeraj.me/writing/the-philosophy-of-small-talk/https://deeraj.me/writing/the-philosophy-of-small-talk/On "Chai peeni hai?", the small questions that hold relationships together, and what we lose when efficiency eats them.Mon, 19 Jan 2026 00:00:00 GMTcreativesmall talkcultureattentionS K Deeraj