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Weijia Zhang

20 accepted papers

2026

Octopus: History-Free Gradient Orthogonalization for Continual Learning in Multimodal Large Language Models

CVPR 2026

Continual learning in multimodal large language models (MLLMs) aims to sequentially acquire knowledge while mitigating catastrophic forgetting, yet existing methods face inherent limitations: architecture-based approaches incur additional computational overhead and often generalize poorly to new tas

Cited by 0SourceScholar
2025

Correlated Low-Rank Adaptation for ConvNets

NeurIPS 2025poster

Low-Rank Adaptation (LoRA) methods have demonstrated considerable success in achieving parameter-efficient fine-tuning (PEFT) for Transformer-based foundation models. These methods typically fine-tune individual Transformer layers using independent LoRA adaptations. However, directly applying existi…

Cited by 0SourcecodeScholar
2025

Cross-Architecture Distillation Made Simple with Redundancy Suppression

ICCV 2025poster

We describe a simple method for cross-architecture knowledge distillation, where the knowledge transfer is cast into a redundant information suppression formulation. Existing methods introduce sophisticated modules, architecture-tailored designs, and excessive parameters, which impair their efficien…

Cited by 0SourcePDFScholar
2025

Foundation Models for Scientific Discovery: From Paradigm Enhancement to Paradigm Transition

NeurIPS 2025poster

Foundation models (FMs), such as GPT-4 and AlphaFold, are reshaping the landscape of scientific research. Beyond accelerating tasks such as hypothesis generation, experimental design, and result interpretation, they prompt a more fundamental question: Are FMs merely enhancing existing scientific met…

Cited by 0SourceScholar
2025

HACSurv: A Hierarchical Copula-Based Approach for Survival Analysis with Dependent Competing Risks

AISTATS 2025poster

In survival analysis, subjects often face competing risks; for example, individuals with cancer may also suffer from heart disease or other illnesses, which can jointly influence the prognosis of risks and censoring. Traditional survival analysis methods often treat competing risks as independent an…

Cited by 0SourcecodeScholar
2025

PVMamba: Parallelizing Vision Mamba via Dynamic State Aggregation

ICCV 2025poster

Mamba, an architecture with RNN-like sequence modeling of State Space Model (SSM), has demonstrated promising capabilities in long-range modeling with high efficiency. However, Mamba models struggle with structured 2D visual data using sequential computing, thereby lagging behind their attention-bas…

2025

Partial Label Causal Representation Learning for Instance-Dependent Supervision and Domain Generalization

AAAI 2025technical

Partial label learning (PLL) addresses situations where each training example is associated with a set of candidate labels, among which only one corresponds to the true class label. As the candidate labels often come from crowdsourced workers, their generation is inherently dependent on the features…

Cited by 0SourcePDFScholar
2025

Summarize-Exemplify-Reflect: Data-driven Insight Distillation Empowers LLMs for Few-shot Tabular Classification

EMNLP 2025

Recent studies show the promise of large language models (LLMs) for few-shot tabular classification but highlight challenges due to the variability in structured data. To address this, we propose distilling data into actionable insights to enable robust and effective classification by LLMs. Drawing

2024

Deep Copula-Based Survival Analysis for Dependent Censoring with Identifiability Guarantees

AAAI 2024technical

Censoring is the central problem in survival analysis where either the time-to-event (for instance, death), or the time-to censoring (such as loss of follow-up) is observed for each sample. The majority of existing machine learning-based survival analysis methods assume that survival is conditionall…

2024

Exploiting Conjugate Label Information for Multi-Instance Partial-Label Learning

IJCAI 2024poster

Multi-instance partial-label learning (MIPL) addresses scenarios where each training sample is represented as a multi-instance bag associated with a candidate label set containing one true label and several false positives. Existing MIPL algorithms have primarily focused on mapping multi-instance ba…

2024

FoodieQA: A Multimodal Dataset for Fine-Grained Understanding of Chinese Food Culture

EMNLP 2024main

Food is a rich and varied dimension of cultural heritage, crucial to both individuals and social groups. To bridge the gap in the literature on the often-overlooked regional diversity in this domain, we introduce FoodieQA, a manually curated, fine-grained image-text dataset capturing the intricate f…

2024

Irregular Multivariate Time Series Forecasting: A Transformable Patching Graph Neural Networks Approach

ICML 2024poster

Forecasting of Irregular Multivariate Time Series (IMTS) is critical for numerous areas, such as healthcare, biomechanics, climate science, and astronomy. Despite existing research addressing irregularities in time series through ordinary differential equations, the challenge of modeling correlation…

Cited by 12SourcePDFScholar
2024

Multi-Instance Partial-Label Learning with Margin Adjustment

NeurIPS 2024poster

Multi-instance partial-label learning (MIPL) is an emerging learning framework where each training sample is represented as a multi-instance bag associated with a candidate label set. Existing MIPL algorithms often overlook the margins for attention scores and predicted probabilities, leading to sub…

2024

QuadMamba: Learning Quadtree-based Selective Scan for Visual State Space Model

NeurIPS 2024poster

Recent advancements in State Space Models, notably Mamba, have demonstrated superior performance over the dominant Transformer models, particularly in reducing the computational complexity from quadratic to linear. Yet, difficulties in adapting Mamba from language to vision tasks arise due to the di…

2023

Disambiguated Attention Embedding for Multi-Instance Partial-Label Learning

NeurIPS 2023poster

In many real-world tasks, the concerned objects can be represented as a multi-instance bag associated with a candidate label set, which consists of one ground-truth label and several false positive labels. Multi-instance partial-label learning (MIPL) is a learning paradigm to deal with such tasks an…

Cited by 13SourcePDFScholar
2022

Multi-Instance Causal Representation Learning for Instance Label Prediction and Out-of-Distribution Generalization

NeurIPS 2022accept

Multi-instance learning (MIL) deals with objects represented as bags of instances and can predict instance labels from bag-level supervision. However, significant performance gaps exist between instance-level MIL algorithms and supervised learners since the instance labels are unavailable in MIL. Mo…

2021

Non-I.I.D. Multi-Instance Learning for Predicting Instance and Bag Labels with Variational Auto-Encoder

IJCAI 2021poster

Multi-instance learning is a type of weakly supervised learning. It deals with tasks where the data is a set of bags and each bag is a set of instances. Only the bag labels are observed whereas the labels for the instances are unknown. An important advantage of multi-instance learning is that by rep…

Cited by 23SourcePDFScholar