David Udell

Karma: 3,129

Announcing: Iliad’s New 2026 Fellowships

David Udell, Alexander Gietelink Oldenziel and Leon Lang

14 Aug 2026 22:41 UTC

37 points

0 comments1 min readLW link

Announcing: Iliad’s Fall 2026 Programs

David Udell, Alexander Gietelink Oldenziel and Leon Lang

30 May 2026 4:37 UTC

65 points

12 comments1 min readLW link

The Iliad Intensive Course Materials (April 2026)

Leon Lang, David Udell and Alexander Gietelink Oldenziel

11 May 2026 18:55 UTC

162 points

4 comments13 min readLW link

(docs.google.com)

What is the Iliad Intensive?

Leon Lang, Alexander Gietelink Oldenziel and David Udell

15 Apr 2026 18:49 UTC

97 points

25 comments2 min readLW link

Announcing: ILIADIII: AENEID

Eddie Jean, windows, Alexander Gietelink Oldenziel and David Udell

11 Apr 2026 3:05 UTC

63 points

0 comments1 min readLW link

Announcing: Iliad Intensive + Iliad Fellowship

David Udell and Alexander Gietelink Oldenziel

20 Feb 2026 20:13 UTC

84 points

21 comments1 min readLW link

Announcing: Agent Foundations 2026 at CMU

David Udell, Alexander Gietelink Oldenziel, windows and Matthias Dellago

5 Dec 2025 18:37 UTC

60 points

4 comments1 min readLW link

(Not) Explaining GPT-2-Small Forward Passes with Edge-Level Autoencoder Circuits

David Udell, hrdkbhatnagar and JacksonKaunismaa

22 Jul 2025 20:36 UTC

23 points

0 comments6 min readLW link

Why Can’t We Hypothesize After the Fact?

David Udell26 Feb 2025 22:41 UTC

40 points

3 comments2 min readLW link

Causal Graphs of GPT-2-Small’s Residual Stream

David Udell9 Jul 2024 22:06 UTC

53 points

7 comments7 min readLW link

Sparse Coding, for Mechanistic Interpretability and Activation Engineering

David Udell23 Sep 2023 19:16 UTC

42 points

7 comments34 min readLW link

ActAdd: Steering Language Models without Optimization

technicalities, TurnTrout, lisathiergart, David Udell, Ulisse Mini and Monte M

6 Sep 2023 17:21 UTC

105 points

3 comments2 min readLW link

(arxiv.org)

Steering GPT-2-XL by adding an activation vector

TurnTrout, Monte M, David Udell, lisathiergart and Ulisse Mini

13 May 2023 18:42 UTC

442 points

98 comments50 min readLW link 1 review

Understanding and controlling a maze-solving policy network

TurnTrout, peligrietzer, Ulisse Mini, Monte M and David Udell

11 Mar 2023 18:59 UTC

336 points

28 comments23 min readLW link

Beneath My Epistemic Dignity

David Udell28 Feb 2023 4:02 UTC

6 points

3 comments2 min readLW link

Probability Theory: The Logic of Science, Jaynes

David Udell16 Feb 2023 21:57 UTC

29 points

0 comments18 min readLW link

Rounding Someone Off

David Udell24 Jan 2023 0:03 UTC

25 points

0 comments5 min readLW link

Consequentialists: One-Way Pattern Traps

David Udell16 Jan 2023 20:48 UTC

67 points

3 comments14 min readLW link

Linear Algebra Done Right, Axler

David Udell2 Jan 2023 22:54 UTC

58 points

6 comments9 min readLW link

Naive Set Theory, Halmos

David Udell22 Dec 2022 2:34 UTC

11 points

1 comment8 min readLW link