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Toni J.b. Liu

5 accepted papers

2025

Density estimation with LLMs: a geometric investigation of in-context learning trajectories

ICLR 2025poster

Large language models (LLMs) demonstrate remarkable emergent abilities to perform in-context learning across various tasks, including time series forecasting. This work investigates LLMs' ability to estimate probability density functions (PDFs) from data observed in-context; such density estimatio…

2024

LLMs learn governing principles of dynamical systems, revealing an in-context neural scaling law

EMNLP 2024main

We study LLMs’ ability to extrapolate the behavior of various dynamical systems, including stochastic, chaotic, continuous, and discrete systems, whose evolution is governed by principles of physical interest. Our results show that LLaMA-2, a language model trained on text, achieves accurate predict…

2024

Shadow Cones: A Generalized Framework for Partial Order Embeddings

ICLR 2024poster

Hyperbolic space has proven to be well-suited for capturing hierarchical relations in data, such as trees and directed acyclic graphs. Prior work introduced the concept of entailment cones, which uses partial orders defined by nested cones in the Poincar\'e ball to model hierarchies. Here, we introd…