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Feng Hong

15 accepted papers

2026

Improving Diffusion Models for Class-imbalanced Training Data via Capacity Manipulation

ICLR 2026oral

While diffusion models have achieved remarkable performance in image generation, they often struggle with the imbalanced datasets frequently encountered in real-world applications, resulting in significant performance degradation on minority classes. In this paper, we identify model capacity allocat…

Cited by 0SourceScholar
2026

Rejection Mixing: Fast Semantic Propagation of Mask Tokens for Efficient DLLM Inference

CVPR 2026

Diffusion Large Language Models (DLLMs) promise fast non-autoregressive inference but suffer a severe quality and speed tradeoff in parallel decoding. This stems from the "combinatorial contradiction" phenomenon, where parallel tokens form semantically inconsistent combinations. We address this by i

Cited by 0SourcecodeScholar
2026

TRIP-Bench: A Benchmark for Long-Horizon Interactive Agents in Real-World Scenarios

ICML 2026poster

As LLM-based agents are deployed in increasingly complex real-world settings, existing benchmarks underrepresent key challenges such as enforcing global constraints, coordinating multi-tool reasoning, and adapting to evolving user behavior over long, multi-turn interactions. To bridge this gap, we i…

Cited by 0SourceScholar
2026

Wide-In, Narrow-Out: Revokable Decoding for Efficient and Effective DLLMs

ICLR 2026poster

Diffusion Large Language Models (DLLMs) have emerged as a compelling alternative to Autoregressive models, designed for fast parallel generation. However, existing DLLMs are plagued by a severe quality-speed trade-off, where faster parallel decoding leads to significant performance degradation. We a…

Cited by 0SourcecodeScholar
2025

Differential-informed Sample Selection Accelerates Multimodal Contrastive Learning

ICCV 2025poster

The remarkable success of contrastive-learning-based multimodal models has been greatly driven by training on ever-larger datasets with expensive compute consumption. Sample selection as an alternative efficient paradigm plays an important direction to accelerate the training process. However, recen…

2025

Learning to Instruct for Visual Instruction Tuning

NeurIPS 2025poster

We propose L2T, an advancement of visual instruction tuning (VIT). While VIT equips Multimodal LLMs (MLLMs) with promising multimodal capabilities, the current design choices for VIT often result in overfitting and shortcut learning, potentially degrading performance. This gap arises from an overemp…

Cited by 7SourcecodeScholar
2025

Non-collective Calibrating Strategy for Time Series Forecasting

IJCAI 2025

Deep learning-based approaches have demonstrated significant advancements in time series forecasting. Despite these ongoing developments, the complex dynamics of time series make it challenging to establish the rule of thumb for designing the golden model architecture. In this study, we argue that r

2024

Diversified Batch Selection for Training Acceleration

ICML 2024poster

The remarkable success of modern machine learning models on large datasets often demands extensive training time and resource consumption. To save cost, a prevalent research line, known as online batch selection, explores selecting informative subsets during the training process. Although recent eff…

2024

On Harmonizing Implicit Subpopulations

ICLR 2024poster

Machine learning algorithms learned from data with skewed distributions usually suffer from poor generalization, especially when minority classes matter as much as, or even more than majority ones. This is more challenging on class-balanced data that has some hidden imbalanced subpopulations, since…

Cited by 8SourcePDFScholar
2024

Revive Re-weighting in Imbalanced Learning by Density Ratio Estimation

NeurIPS 2024poster

In deep learning, model performance often deteriorates when trained on highly imbalanced datasets, especially when evaluation metrics require robust generalization across underrepresented classes. To address the challenges posed by imbalanced data distributions, this study introduces a novel method…

Cited by 1SourcePDFScholar
2023

Combating Representation Learning Disparity with Geometric Harmonization

NeurIPS 2023spotlight

Self-supervised learning (SSL) as an effective paradigm of representation learning has achieved tremendous success on various curated datasets in diverse scenarios. Nevertheless, when facing the long-tailed distribution in real-world applications, it is still hard for existing methods to capture tra…

2023

Long-Tailed Partial Label Learning via Dynamic Rebalancing

ICLR 2023poster

Real-world data usually couples the label ambiguity and heavy imbalance, challenging the algorithmic robustness of partial label learning (PLL) and long-tailed learning (LT). The straightforward combination of LT and PLL, i.e., LT-PLL, suffers from a fundamental dilemma: LT methods build upon a give…

2021

A Bottom-Up DAG Structure Extraction Model for Math Word Problems

AAAI 2021technical

Research on automatically solving mathematical word problems (MWP) has a long history. Most recent works adopt Seq2Seq approach to predict the result equations as a sequence of quantities and operators. Although result equations can be written as a sequence, it is essentially a structure. More preci…

Cited by 58SourcePDFScholar
2021

Learning to Learn Personalized Neural Network for Ventricular Arrhythmias Detection on Intracardiac EGMs

IJCAI 2021poster

Life-threatening ventricular arrhythmias (VAs) detection on intracardiac electrograms (IEGMs) is essential to Implantable Cardioverter Defibrillators (ICDs). However, current VAs detection methods count on a variety of heuristic detection criteria, and require frequent manual interventions to person…

Cited by 15SourcePDFScholar