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Ollie Liu

9 accepted papers

2026

Tina: Tiny Reasoning Models via LoRA

ICLR 2026poster

How cost-effectively can strong reasoning abilities be achieved in language models? Driven by this question, we present Tina, a family of tiny reasoning models achieved with high cost-efficiency. Tina shows that substantial reasoning performance can be developed using only minimal resources, by appl…

Cited by 0SourcecodeScholar
2026

Zebra-CoT: A Dataset for Interleaved Vision-Language Reasoning

ICLR 2026poster

Humans often rely on visual aids, such as diagrams or sketches, when tackling complex problems. Teaching multimodal models to adopt similar strategies, a process known as Visual Chain of Thought (visual CoT), is much more difficult. The main challenges are: (1) weak performance of off-the-shelf visu…

Cited by 0SourcecodeScholar
2025

AION-1: Omnimodal Foundation Model for Astronomical Sciences

NeurIPS 2025poster

While foundation models have shown promise across a variety of fields, astronomy lacks a unified framework for joint modeling across its highly diverse data modalities. In this paper, we present AION-1, the first large-scale multimodal foundation family of models for astronomy. AION-1 enables arbitr…

Cited by 0SourceScholar
2025

DeLLMa: Decision Making Under Uncertainty with Large Language Models

ICLR 2025spotlight

The potential of large language models (LLMs) as decision support tools is increasingly being explored in fields such as business, engineering, and medicine, which often face challenging tasks of *decision-making under uncertainty*. In this paper, we show that directly prompting LLMs on these types…

Cited by 5SourcePDFScholar
2025

MatViX: Multimodal Information Extraction from Visually Rich Articles

NAACL 2025long

Multimodal information extraction (MIE) is crucial for scientific literature, where valuable data is often spread across text, figures, and tables. In materials science, extracting structured information from research articles can accelerate the discovery of new materials. However, the multimodal na…

Cited by 2SourcePDFScholar
2024

Interpretable Diffusion via Information Decomposition

ICLR 2024poster

Denoising diffusion models enable conditional generation and density modeling of complex relationships like images and text. However, the nature of the learned relationships is opaque making it difficult to understand precisely what relationships between words and parts of an image are captured, or…

2024

On Retrieval Augmentation and the Limitations of Language Model Training

NAACL 2024short

Augmenting a language model (LM) with k-nearest neighbors (kNN) retrieval on its training data alone can decrease its perplexity, though the underlying reasons for this remain elusive. In this work, we rule out one previously posited possibility — the “softmax bottleneck.” We then create a new datas…

2023

How does GPT-2 compute greater-than?: Interpreting mathematical abilities in a pre-trained language model

NeurIPS 2023poster

Pre-trained language models can be surprisingly adept at tasks they were not explicitly trained on, but how they implement these capabilities is poorly understood. In this paper, we investigate the basic mathematical abilities often acquired by pre-trained language models. Concretely, we use mechani…