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Pan Du

7 accepted papers

2026

K-Sort Eval: Efficient Preference Evaluation for Visual Generation via Corrected VLM-as-a-Judge

ICLR 2026poster

The rapid development of visual generative models raises the need for more scalable and human-aligned evaluation methods. While the crowdsourced Arena platforms offer human preference assessments by collecting human votes, they are costly and time-consuming, inherently limiting their scalability. Le…

Cited by 0SourcecodeScholar
2025

Batched Self-Consistency Improves LLM Relevance Assessment and Ranking

EMNLP 2025

LLM query-passage relevance assessment is typically studied using a one-by-one pointwise (PW) strategy where each LLM call judges one passage at a time. However, this strategy requires as many LLM calls as there are passages while also preventing information sharing between passages. We thus hypothe

2025

Personalized Clustering via Targeted Representation Learning

AAAI 2025technical

Clustering traditionally aims to reveal a natural grouping structure within unlabeled data. However, this structure may not always align with users' preferences. In this paper, we propose a personalized clustering method that explicitly performs targeted representation learning by interacting with u…

2025

Unsupervised Learning for Class Distribution Mismatch

ICML 2025poster

Class distribution mismatch (CDM) refers to the discrepancy between class distributions in training data and target tasks. Previous methods address this by designing classifiers to categorize classes known during training, while grouping unknown or new classes into an "other" category. However, they…

2023

Semi-Supervised Learning via Weight-Aware Distillation under Class Distribution Mismatch

ICCV 2023poster

Semi-Supervised Learning (SSL) under class distribution mismatch aims to tackle a challenging problem wherein unlabeled data contain lots of unknown categories unseen in the labeled ones. In such mismatch scenarios, traditional SSL suffers severe performance damage due to the harmful invasion of the…

Cited by 9PDFcodeScholar
2021

Contrastive Coding for Active Learning Under Class Distribution Mismatch

ICCV 2021poster

Active learning (AL) is successful based on the assumption that labeled and unlabeled data are obtained from the same class distribution. However, its performance deteriorates under class distribution mismatch, wherein the unlabeled data contain many samples out of the class distribution of labeled…

Cited by 50PDFScholar
2021

Inductive Topic Variational Graph Auto-Encoder for Text Classification

NAACL 2021long

Graph convolutional networks (GCNs) have been applied recently to text classification and produced an excellent performance. However, existing GCN-based methods do not assume an explicit latent semantic structure of documents, making learned representations less effective and difficult to interpret.…

Cited by 40SourcePDFScholar