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Dongfang Liu

45 accepted papers

2026

InfoDLM: an Information-Adaptive Framework for Discrete Diffusion Language Model Pretraining

ICML 2026poster

Diffusion language models (DLMs) can match or surpass similarly sized autoregressive language models on language understanding and reasoning. However, their mask-and-denoise pretraining relies on heuristic random masking, which fails to target the most informative tokens. Consequently, the model spe…

Cited by 0SourceScholar
2026

Make LVLMs Focus: Context-Aware Attention Modulation for Better Multimodal In-Context Learning

AAAI 2026technical

Multimodal in-context learning (ICL) is becoming a key capability that allows large vision-language models (LVLMs) to adapt to novel tasks without parameter updates, which expands their usefulness in many real-world applications. However, ICL performance remains unstable even when the in-context dem

Cited by 0SourcePDFScholar
2026

TokenSeek: Memory Efficient Fine Tuning via Instance-Aware Token Ditching

ICLR 2026poster

Fine tuning has been regarded as a de facto approach for adapting large language models (LLMs) to downstream tasks, but the high training memory consumption inherited from LLMs makes this process inefficient. Among existing memory efficient approaches, activation-related optimization has proven part…

Cited by 0SourceScholar
2025

All You Need is One: Capsule Prompt Tuning with a Single Vector

NeurIPS 2025poster

Prompt-based learning has emerged as a parameter-efficient finetuning (PEFT) approach to facilitate Large Language Model (LLM) adaptation to downstream tasks by conditioning generation with task-aware guidance. Despite its successes, current prompt-based learning methods heavily rely on laborious gr…

Cited by 0SourceScholar
2025

DS-LLM: Leveraging Dynamical Systems to Enhance Both Training and Inference of Large Language Models

ICLR 2025poster

The training of large language models (LLMs) faces significant computational cost challenges, limiting their scalability toward artificial general intelligence (AGI) and broader adoption. With model sizes doubling approximately every 3.4 months and training costs escalating from 64 million USD for G…

Cited by 2SourcePDFScholar
2025

Diff-PIC: Revolutionizing Particle-In-Cell Nuclear Fusion Simulation with Diffusion Models

ICLR 2025poster

The rapid development of AI highlights the pressing need for sustainable energy, a critical global challenge for decades. Nuclear fusion, generally seen as a promising solution, has been the focus of intensive research for nearly a century, with investments reaching hundreds of billions of dollars.…

Cited by 0SourcePDFScholar
2025

Exploring the Adversarial Vulnerabilities of Vision-Language-Action Models in Robotics

ICCV 2025poster

Recently in robotics, Vision-Language-Action (VLA) models have emerged as a transformative approach, enabling robots to execute complex tasks by integrating visual and linguistic inputs within an end-to-end learning framework. Despite their significant capabilities, VLA models introduce new attack s…

2025

MEPT: Mixture of Expert Prompt Tuning as a Manifold Mapper

EMNLP 2025

Considering deep neural networks as manifold mappers, the pretrain-then-fine-tune paradigm can be interpreted as a two-stage process: pretrain establishes a broad knowledge base, and fine-tune adjusts the model parameters to activate specific neural pathways to align with the target manifold. Althou

Cited by 0SourcePDFScholar
2025

Probabilistic Token Alignment for Large Language Model Fusion

NeurIPS 2025poster

Training large language models (LLMs) from scratch can yield models with unique functionalities and strengths, but it is costly and often leads to redundant capabilities. A more cost-effective alternative is to fuse existing pre-trained LLMs with different architectures into a more powerful model. H…

Cited by 0SourceScholar
2025

Re-Imagining Multimodal Instruction Tuning: A Representation View

ICLR 2025poster

Multimodal instruction tuning has proven to be an effective strategy for achieving zero-shot generalization by fine-tuning pre-trained Large Multimodal Models (LMMs) with instruction-following data. However, as the scale of LMMs continues to grow, fully fine-tuning these models has become highly par…

2025

Robust Ego-Exo Correspondence with Long-Term Memory

NeurIPS 2025poster

Establishing object-level correspondence between egocentric and exocentric views is essential for intelligent assistants to deliver precise and intuitive visual guidance. However, this task faces numerous challenges, including extreme viewpoint variations, occlusions, and the presence of small objec…

Cited by 0SourcecodeScholar
2025

Visual Agents as Fast and Slow Thinkers

ICLR 2025poster

Achieving human-level intelligence requires refining cognitive distinctions between \textit{System 1} and \textit{System 2} thinking. While contemporary AI, driven by large language models, demonstrates human-like traits, it falls short of genuine cognition. Transitioning from structured benchmarks…

2024

BadPart: Unified Black-box Adversarial Patch Attacks against Pixel-wise Regression Tasks

ICML 2024poster

Pixel-wise regression tasks (e.g., monocular depth estimation (MDE) and optical flow estimation (OFE)) have been widely involved in our daily life in applications like autonomous driving, augmented reality and video composition. Although certain applications are security-critical or bear societal si…

2024

Diffusion-Inspired Truncated Sampler for Text-Video Retrieval

NeurIPS 2024poster

Prevalent text-to-video retrieval methods represent multimodal text-video data in a joint embedding space, aiming at bridging the relevant text-video pairs and pulling away irrelevant ones. One main challenge in state-of-the-art retrieval methods lies in the modality gap, which stems from the substa…

Cited by 2SourcePDFScholar
2024

EAVE: Efficient Product Attribute Value Extraction via Lightweight Sparse-layer Interaction

EMNLP 2024finding

Product attribute value extraction involves identifying the specific values associated with various attributes from a product profile. While existing methods often prioritize the development of effective models to improve extraction performance, there has been limited emphasis on extraction efficien…

Cited by 1SourcePDFScholar
2024

Efficient Multimodal Semantic Segmentation via Dual-Prompt Learning

IROS 2024

Multimodal (e.g., RGB-Depth/RGB-Thermal) fusion has shown great potential for improving semantic segmentation in complex scenes (e.g., indoor/low-light conditions). Existing approaches often fully fine-tune a dual-branch encoder-decoder framework with a complicated feature fusion strategy for achiev

Cited by 45SourcecodeScholar
2024

Facing the Elephant in the Room: Visual Prompt Tuning or Full finetuning?

ICLR 2024poster

As the scale of vision models continues to grow, the emergence of Visual Prompt Tuning (VPT) as a parameter-efficient transfer learning technique has gained attention due to its superior performance compared to traditional full-finetuning. However, the conditions favoring VPT (the "when") and the un…

2024

Fusion Is Not Enough: Single Modal Attacks on Fusion Models for 3D Object Detection

ICLR 2024poster

Multi-sensor fusion (MSF) is widely used in autonomous vehicles (AVs) for perception, particularly for 3D object detection with camera and LiDAR sensors. The purpose of fusion is to capitalize on the advantages of each modality while minimizing its weaknesses. Advanced deep neural network (DNN)-base…

2024

Image Translation as Diffusion Visual Programmers

ICLR 2024poster

We introduce the novel Diffusion Visual Programmer (DVP), a neuro-symbolic image translation framework. Our proposed DVP seamlessly embeds a condition-flexible diffusion model within the GPT architecture, orchestrating a coherent sequence of visual programs ($i.e.$, computer vision models) for vario…

Cited by 25SourcePDFScholar
2024

M2PT: Multimodal Prompt Tuning for Zero-shot Instruction Learning

EMNLP 2024main

Multimodal Large Language Models (MLLMs) demonstrate remarkable performance across a wide range of domains, with increasing emphasis on enhancing their zero-shot generalization capabilities for unseen tasks across various modalities. Instruction tuning has emerged as an effective strategy for achiev…

2024

ProMotion: Prototypes As Motion Learners

CVPR 2024poster

In this work we introduce ProMotion a unified prototypical transformer-based framework engineered to model fundamental motion tasks. ProMotion offers a range of compelling attributes that set it apart from current task-specific paradigms. 1. We adopt a prototypical perspective establishing a unified…

Cited by 7SourcePDFScholar
2024

Prototypical Transformer As Unified Motion Learners

ICML 2024poster

In this work, we introduce the Prototypical Transformer (ProtoFormer), a general and unified framework that approaches various motion tasks from a prototype perspective. ProtoFormer seamlessly integrates prototype learning with Transformer by thoughtfully considering motion dynamics, introducing two…

Cited by 17SourcePDFScholar
2024

Text Is MASS: Modeling as Stochastic Embedding for Text-Video Retrieval

CVPR 2024highlight

The increasing prevalence of video clips has sparked growing interest in text-video retrieval. Recent advances focus on establishing a joint embedding space for text and video relying on consistent embedding representations to compute similarity. However the text content in existing datasets is gene…

Cited by 40SourcePDFScholar
2023

APrompt: Attention Prompt Tuning for Efficient Adaptation of Pre-trained Language Models

EMNLP 2023long main

With the continuous growth of large language models, the process of fine-tuning these models for new tasks has become increasingly parameter-intensive. Prompt tuning, a method that involves tuning a small set of soft prompts, has emerged as an effective and efficient approach for adapting large pre-…

Cited by 0SourceScholar
2023

Adversarial Training of Self-supervised Monocular Depth Estimation against Physical-World Attacks

ICLR 2023top-25%

Monocular Depth Estimation (MDE) is a critical component in applications such as autonomous driving. There are various attacks against MDE networks. These attacks, especially the physical ones, pose a great threat to the security of such systems. Traditional adversarial training method requires gro…

2023

ClusterFomer: Clustering As A Universal Visual Learner

NeurIPS 2023poster

This paper presents ClusterFormer, a universal vision model that is based on the Clustering paradigm with TransFormer. It comprises two novel designs: 1) recurrent cross-attention clustering, which reformulates the cross-attention mechanism in Transformer and enables recursive updates of cluster cen…

2023

E^2VPT: An Effective and Efficient Approach for Visual Prompt Tuning

ICCV 2023poster

As the size of transformer-based models continues to grow, fine-tuning these large-scale pre-trained vision models for new tasks has become increasingly parameter-intensive. Parameter-efficient learning has been developed to reduce the number of tunable parameters during fine-tuning. Although these…

Cited by 89PDFcodeScholar
2023

MUSTIE: Multimodal Structural Transformer for Web Information Extraction

ACL 2023long

The task of web information extraction is to extract target fields of an object from web pages, such as extracting the name, genre and actor from a movie page. Recent sequential modeling approaches have achieved state-of-the-art results on web information extraction. However, most of these methods o…

Cited by 18SourcePDFScholar
2023

MixPAVE: Mix-Prompt Tuning for Few-shot Product Attribute Value Extraction

ACL 2023findings

The task of product attribute value extraction is to identify values of an attribute from product information. Product attributes are important features, which help improve online shopping experience of customers, such as product search, recommendation and comparison. Most existing works only focus…

Cited by 31SourcePDFScholar
2023

Prompt Learns Prompt: Exploring Knowledge-Aware Generative Prompt Collaboration For Video Captioning

IJCAI 2023poster

Fine-tuning large vision-language models is a challenging task. Prompt tuning approaches have been introduced to learn fixed textual or visual prompts while freezing the pre-trained model in downstream tasks. Despite the effectiveness of prompt tuning, what do those learnable prompts learn remains u…

Cited by 45SourcePDFScholar
2023

TransFlow: Transformer As Flow Learner

CVPR 2023highlight

Optical flow is an indispensable building block for various important computer vision tasks, including motion estimation, object tracking, and disparity measurement. In this work, we propose TransFlow, a pure transformer architecture for optical flow estimation. Compared to dominant CNN-based method…

Cited by 99SourcePDFScholar
2022

GL-RG: Global-Local Representation Granularity for Video Captioning

IJCAI 2022poster

Video captioning is a challenging task as it needs to accurately transform visual understanding into natural language description. To date, state-of-the-art methods inadequately model global-local representation across video frames for caption generation, leaving plenty of room for improve…

2022

Learning Equivariant Segmentation with Instance-Unique Querying

NeurIPS 2022accept

Prevalent state-of-the-art instance segmentation methods fall into a query-based scheme, in which instance masks are derived by querying the image feature using a set of instance-aware embeddings. In this work, we devise a new training framework that boosts query-based models through discriminative…

2022

Learning to Generate Question by Asking Question: A Primal-Dual Approach with Uncommon Word Generation

EMNLP 2022main

Automatic question generation (AQG) is the task of generating a question from a given passage and an answer. Most existing AQG methods aim at encoding the passage and the answer to generate the question. However, limited work has focused on modeling the correlation between the target answer and the…

Cited by 9SourcePDFScholar
2022

Physical Attack on Monocular Depth Estimation with Optimal Adversarial Patches

ECCV 2022poster

"Deep learning has substantially boosted the performance of Monocular Depth Estimation (MDE), a critical component in fully vision-based autonomous driving (AD) systems (e.g., Tesla and Toyota). In this work, we develop an attack against learning-based MDE. In particular, we use an optimization-base…

2022

Towards Unbiased Label Distribution Learning for Facial Pose Estimation Using Anisotropic Spherical Gaussian

ECCV 2022poster

"Facial pose estimation refers to the task of predicting face orientation from a single RGB image. It is an important research topic with a wide range of applications in computer vision. Label distribution learning (LDL) based methods have been recently proposed for facial pose estimation, which ach…

Cited by 33SourcePDFScholar
2021

DenserNet: Weakly Supervised Visual Localization Using Multi-Scale Feature Aggregation

AAAI 2021technical

In this work, we introduce a Denser Feature Network(DenserNet) for visual localization. Our work provides three principal contributions. First, we develop a convolutional neural network (CNN) architecture which aggregates feature maps at different semantic levels for image representations…

2021

SG-Net: Spatial Granularity Network for One-Stage Video Instance Segmentation

CVPR 2021poster

Video instance segmentation (VIS) is a new and critical task in computer vision. To date, top-performing VIS methods extend the two-stage Mask R-CNN by adding a tracking branch, leaving plenty of room for improvement. In contrast, we approach the VIS task from a new perspective and propose a one-sta…

Cited by 241PDFcodeScholar
2021

Semantic Aware Data Augmentation for Cell Nuclei Microscopical Images With Artificial Neural Networks

ICCV 2021poster

There exists many powerful architectures for object detection and semantic segmentation of both biomedical and natural images. However, a difficulty arises in the ability to create training datasets that are large and well-varied. The importance of this subject is nested in the amount of training da…

Cited by 7PDFcodeScholar
2020

Multimodal Aggregation Approach for Memory Vision-Voice Indoor Navigation with Meta-Learning

IROS 2020poster

Vision and voice are two vital keys for agents’ interaction and learning. In this paper, we present a novel indoor navigation model called Memory Vision-Voice Indoor Navigation (MVV-IN), which receives voice commands and analyzes multimodal information of visual observation in order to enhance robot…

Cited by 24SourceScholar