Tiago Pimentel

@tpimentel.bsky.social

2243 Followers 130 Following

Postdoc at ETH. Formerly, PhD student at the University of Cambridge :)

Screenshot of paper title: Tokenisation over Bounded Alphabets is Hard.
Figure showing the four phases of convergence in LM training
Paper title "The Non-Linear Representation Dilemma: Is Causal Abstraction Enough for Mechanistic Interpretability?" with the paper's graphical abstract showing how more powerful alignment maps between a DNN and an algorithm allow more complex features to be found and more "accurate" abstractions.
Title of paper "Causal Estimation of Tokenisation Bias" and schematic of how we define tokenisation bias, which is the causal effect we are interested in.
Inline citations with only first author name, or first two co-first author names.
Screenshot of paper's title. Paper title is: "Revisiting the Optimality of Word Lengths"