Austin Xu
10 papers · 2020–2026 · 6 venues · across top CS/AI venues
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Achievements
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π Interdisciplinary Bridge Β· Silver πΊοΈ Taxonomy Completionist (28) π£ Hot Topic Early Bird π Conference Polyglot Β· Silver π Academic Marathon Β· Sprint
π
Renaissance Researcher
(6)
β
The Questioner
π
Century Club Β· Bronze
Top co-authors
Research topics
Machine Learning
(7)
Artificial Intelligence
(5)
Core AI
(5)
Application Areas
(4)
Learning Types
(4)
Deep Learning
(3)
Natural Language Processing
(3)
Core Methods
(3)
Models
(2)
Computer Vision
(1)
Data Science & Analytics
(1)
Interdisciplinary
(1)
Reinforcement Learning
(1)
Applications Β· Natural Language Processing
(1)
Applications Β· Data Science & Analytics
(1)
Keywords
large language model
(3)
metric learning
(3)
reinforcement learning
(2)
mahalanobis distance
(2)
group relative policy optimization
(2)
judge model
(2)
direct preference optimization
(1)
preference learning
(1)
semantic segmentation
(1)
language model evaluation
(1)
depth estimation
(1)
recommendation system
(1)
low-rank matrix
(1)
human feedback
(1)
language modeling
(1)
supervised fine-tuning
(1)
generative adversarial network
(1)
model evaluation
(1)
reward model
(1)
pairwise comparison
(1)
Papers
Hard2Verify: A Step-Level Verification Benchmark for Open-Ended Frontier Math
ACL 2026
J4R: Learning to Judge with Equivalent Initial State Group Relative Policy Optimization
ACL 2026
Direct Judgement Preference Optimization
EMNLP 2025
Does Context Matter? ContextualJudgeBench for Evaluating LLM-based Judges in Contextual Settings
ACL 2025
Evaluating Judges as Evaluators: The JETTS Benchmark of LLM-as-Judges as Test-Time Scaling Evaluators
ICML 2025
Topic-Guided Reinforcement Learning with LLMs for Enhancing Multi-Document Summarization
EMNLP 2025
Active metric learning and classification using similarity queries
UAI 2023
HandsOff: Labeled Dataset Generation With No Additional Human Annotations
CVPR 2023
Perceptual adjustment queries and an inverted measurement paradigm for low-rank metric learning
NeurIPS 2023
Simultaneous Preference and Metric Learning from Paired Comparisons
NeurIPS 2020