Search Results for author: Ollie Liu

Found 6 papers, 3 papers with code

IsoBench: Benchmarking Multimodal Foundation Models on Isomorphic Representations

no code implementations1 Apr 2024 Deqing Fu, Ghazal Khalighinejad, Ollie Liu, Bhuwan Dhingra, Dani Yogatama, Robin Jia, Willie Neiswanger

Current foundation models exhibit impressive capabilities when prompted either with text only or with both image and text inputs.

Benchmarking Math

DeLLMa: A Framework for Decision Making Under Uncertainty with Large Language Models

no code implementations4 Feb 2024 Ollie Liu, Deqing Fu, Dani Yogatama, Willie Neiswanger

Large language models (LLMs) are increasingly used across society, including in domains like business, engineering, and medicine.

Decision Making Decision Making Under Uncertainty +2

On Retrieval Augmentation and the Limitations of Language Model Training

no code implementations16 Nov 2023 Ting-Rui Chiang, Xinyan Velocity Yu, Joshua Robinson, Ollie Liu, Isabelle Lee, Dani Yogatama

Augmenting a language model (LM) with $k$-nearest neighbors ($k$NN) retrieval on its training data alone can decrease its perplexity, though the underlying reasons for this remain elusive.

Language Modelling Memorization +1

Interpretable Diffusion via Information Decomposition

1 code implementation12 Oct 2023 Xianghao Kong, Ollie Liu, Han Li, Dani Yogatama, Greg Ver Steeg

For diffusion models, we show that a natural non-negative decomposition of mutual information emerges, allowing us to quantify informative relationships between words and pixels in an image.

Image Generation Vision-Language Segmentation

Approximating CKY with Transformers

1 code implementation3 May 2023 Ghazal Khalighinejad, Ollie Liu, Sam Wiseman

We investigate the ability of transformer models to approximate the CKY algorithm, using them to directly predict a sentence's parse and thus avoid the CKY algorithm's cubic dependence on sentence length.

Constituency Parsing Inductive Bias +1

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