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Lijuan Liu

10 accepted papers

2026

High Accuracy, Less Talk (HALT): Reliable LLMs through Capability-Aligned Finetuning

ICLR 2026poster

Large Language Models (LLMs) currently respond to every prompt. However, they can produce incorrect answers when they lack knowledge or capability -- a problem known as hallucination. We instead propose post-training an LLM to generate content only when confident in its correctness and to otherwise…

Cited by 0SourceScholar
2025

QA-MDT: Quality-aware Masked Diffusion Transformer for Enhanced Music Generation

IJCAI 2025

Text-to-music (TTM) generation, which converts textual descriptions into audio, opens up innovative avenues for multimedia creation. Achieving high quality and diversity in this process demands extensive, high-quality data, which are often scarce in available datasets. Most open-source datasets freq

2024

RedCoast: A Lightweight Tool to Automate Distributed Training of LLMs on Any GPU/TPUs

NAACL 2024system demonstrations

The recent progress of AI can be largely attributed to large language models (LLMs). However, their escalating memory requirements introduce challenges for machine learning (ML) researchers and engineers. Addressing this requires developers to partition a large model to distribute it across multiple…

2023

Cappy: Outperforming and Boosting Large Multi-Task LMs with a Small Scorer

NeurIPS 2023poster

Large language models (LLMs) such as T0, FLAN, and OPT-IML excel in multi-tasking under a unified instruction-following paradigm, where they also exhibit remarkable generalization abilities to unseen tasks. Despite their impressive performance, these LLMs, with sizes ranging from several billion to…

Cited by 9SourcePDFScholar
2022

Geometry-Guided Progressive NeRF for Generalizable and Efficient Neural Human Rendering

ECCV 2022poster

"In this work we develop a generalizable and efficient Neural Radiance Field (NeRF) pipeline for high-fidelity free-viewpoint human body synthesis under settings with sparse camera views. Though existing NeRF-based methods can synthesize rather realistic details for human body, they tend to produce…

Cited by 49SourcePDFScholar
2022

Towards Better Semantic Understanding of Mobile Interfaces

COLING 2022main

Improving the accessibility and automation capabilities of mobile devices can have a significant positive impact on the daily lives of countless users. To stimulate research in this direction, we release a human-annotated dataset with approximately 500k unique annotations aimed at increasing the und…

2022

TreeMoCo: Contrastive Neuron Morphology Representation Learning

NeurIPS 2022accept

Morphology of neuron trees is a key indicator to delineate neuronal cell-types, analyze brain development process, and evaluate pathological changes in neurological diseases. Traditional analysis mostly relies on heuristic features and visual inspections. A quantitative, informative, and comprehensi…

2021

ActionBert: Leveraging User Actions for Semantic Understanding of User Interfaces

AAAI 2021technical

As mobile devices are becoming ubiquitous, regularly interacting with a variety of user interfaces (UIs) is a common aspect of daily life for many people. To improve the accessibility of these devices and to enable their usage in a variety of settings, building models that can assist users and accom…

Cited by 82SourcePDFScholar
2021

In-game Residential Home Planning via Visual Context-aware Global Relation Learning

AAAI 2021technical

In this paper, we propose an effective global relation learning algorithm to recommend an appropriate location of a building unit for in-game customization of residential home complex. Given a construction layout, we propose a visual context-aware graph generation network that learns the implicit gl…

Cited by 5SourcePDFScholar
2021

PhotoChat: A Human-Human Dialogue Dataset With Photo Sharing Behavior For Joint Image-Text Modeling

ACL 2021long

We present a new human-human dialogue dataset - PhotoChat, the first dataset that casts light on the photo sharing behavior in online messaging. PhotoChat contains 12k dialogues, each of which is paired with a user photo that is shared during the conversation. Based on this dataset, we propose two t…