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Di Niu

27 accepted papers

2026

Don't Show Pixels, Show Cues: Unlocking Visual Tool Reasoning in Language Models via Perception Programs

CVPR 2026

Multimodal language models (MLLMs) are increasingly paired with vision tools (e.g., depth, flow, correspondence) to enhance visual reasoning. However, despite access to these tool-generated visual cues, MLLMs often fail to benefit fully from them. Existing approaches typically feed raw tool outputs

Cited by 0SourcecodeScholar
2026

RAISE: Requirement-Adaptive Evolutionary Refinement for Training-Free Text-to-Image Alignment

CVPR 2026

Recent text-to-image (T2I) diffusion models achieve remarkable realism, yet faithful prompt-image alignment remains challenging, particularly for complex prompts with multiple objects, relations, and fine-grained attributes. Existing training-free inference-time scaling methods rely on fixed iterati

Cited by 0SourcecodeScholar
2026

ReaGEN: Adaptive Generation of Structured Chains-of-Thought for Efficient Multimodal Reasoning

CVPR 2026

Large Vision Language Models (LVLMs) exhibit strong perceptual and linguistic capabilities yet struggle with complex visual reasoning tasks that require structured, compositional, and adaptive inference. Existing approaches either rely on costly inference-time exploration--such as multi-path or tree

Cited by 0SourcecodeScholar
2025

FunEditor: Achieving Complex Image Edits via Function Aggregation with Diffusion Models

AAAI 2025technical

Diffusion models have demonstrated outstanding performance in generative tasks, making them ideal candidates for image editing. Recent studies highlight their ability to apply desired edits effectively by following textual instructions, yet with two key challenges remaining. First, these models stru…

Cited by 0SourcePDFScholar
2025

PixelMan: Consistent Object Editing with Diffusion Models via Pixel Manipulation and Generation

AAAI 2025technical

Recent research explores the potential of Diffusion Models (DMs) for consistent object editing, which aims to modify object position, size, and composition, etc., while preserving the consistency of objects and background without changing their texture and attributes. Current inference-time methods…

2025

Qua2SeDiMo: Quantifiable Quantization Sensitivity of Diffusion Models

AAAI 2025technical

Diffusion Models (DM) have democratized AI image generation through an iterative denoising process. Quantization is a major technique to alleviate the inference cost and reduce the size of DM denoiser networks. However, as denoisers evolve from variants of convolutional U-Nets toward newer Transform…

Cited by 0SourcePDFScholar
2025

Re-ttention: Ultra Sparse Visual Generation via Attention Statistical Reshape

NeurIPS 2025poster

Diffusion Transformers (DiT) have become the de-facto model for generating high-quality visual content like videos and images. A huge bottleneck is the attention mechanism where complexity scales quadratically with resolution and video length. One logical way to lessen this burden is sparse attentio…

Cited by 0SourcecodeScholar
2025

TaCIE: Enhancing Instruction Comprehension in Large Language Models through Task-Centred Instruction Evolution

COLING 2025main

The fine-tuning of Large Language Models (LLMs) specialized in code generation has seen notable advancements through the use of open-domain coding queries. Despite the successes, existing methodologies like Evol-Instruct encounter performance limitations, impeding further enhancements in code genera…

2024

Boosting of Thoughts: Trial-and-Error Problem Solving with Large Language Models

ICLR 2024poster

The reasoning performance of Large Language Models (LLMs) on a wide range of problems critically relies on chain-of-thought prompting, which involves providing a few chain of thought demonstrations as exemplars in prompts. Recent work, e.g., Tree of Thoughts, has pointed out the importance of explor…

2024

Building Optimal Neural Architectures using Interpretable Knowledge

CVPR 2024poster

Neural Architecture Search is a costly practice. The fact that a search space can span a vast number of design choices with each architecture evaluation taking nontrivial overhead makes it hard for an algorithm to sufficiently explore candidate networks. In this paper we propose AutoBuild a scheme w…

2024

EiG-Search: Generating Edge-Induced Subgraphs for GNN Explanation in Linear Time

ICML 2024poster

Understanding and explaining the predictions of Graph Neural Networks (GNNs), is crucial for enhancing their safety and trustworthiness. Subgraph-level explanations are gaining attention for their intuitive appeal. However, most existing subgraph-level explainers face efficiency challenges in explai…

2024

GOAt: Explaining Graph Neural Networks via Graph Output Attribution

ICLR 2024poster

Understanding the decision-making process of Graph Neural Networks (GNNs) is crucial to their interpretability. Most existing methods for explaining GNNs typically rely on training auxiliary models, resulting in the explanations remain black-boxed. This paper introduces Graph Output Attribution (GOA…

2024

Instruction Fusion: Advancing Prompt Evolution through Hybridization

ACL 2024long

The fine-tuning of Large Language Models (LLMs) specialized in code generation has seen notable advancements through the use of open-domain coding queries. Despite the successes, existing methodologies like Evol-Instruct encounter performance limitations, impeding further enhancements in code genera…

2024

Learning Truncated Causal History Model for Video Restoration

NeurIPS 2024poster

One key challenge to video restoration is to model the transition dynamics of video frames governed by motion. In this work, we propose Turtle to learn the truncated causal history model for efficient and high-performing video restoration. Unlike traditional methods that process a range of contextua…

2023

AIO-P: Expanding Neural Performance Predictors beyond Image Classification

AAAI 2023technical

Evaluating neural network performance is critical to deep neural network design but a costly procedure. Neural predictors provide an efficient solution by treating architectures as samples and learning to estimate their performance on a given task. However, existing predictors are task-dependent, pr…

2023

AutoGO: Automated Computation Graph Optimization for Neural Network Evolution

NeurIPS 2023poster

Optimizing Deep Neural Networks (DNNs) to obtain high-quality models for efficient real-world deployment has posed multi-faceted challenges to machine learning engineers. Existing methods either search for neural architectures in heuristic design spaces or apply low-level adjustments to computation…

2023

ConFEDE: Contrastive Feature Decomposition for Multimodal Sentiment Analysis

ACL 2023long

Multimodal Sentiment Analysis aims to predict the sentiment of video content. Recent research suggests that multimodal sentiment analysis critically depends on learning a good representation of multimodal information, which should contain both modality-invariant representations that are consistent a…

2023

ConKI: Contrastive Knowledge Injection for Multimodal Sentiment Analysis

ACL 2023findings

Multimodal Sentiment Analysis leverages multimodal signals to detect the sentiment of a speaker. Previous approaches concentrate on performing multimodal fusion and representation learning based on general knowledge obtained from pretrained models, which neglects the effect of domain-specific knowle…

2023

Exploiting Hierarchically Structured Categories in Fine-grained Chinese Named Entity Recognition

ACL 2023findings

Chinese Named Entity Recognition (CNER) is a widely used technology in various applications. While recent studies have focused on utilizing additional information of the Chinese language and characters to enhance CNER performance, this paper focuses on a specific aspect of CNER known as fine-grained…

2023

GENNAPE: Towards Generalized Neural Architecture Performance Estimators

AAAI 2023technical

Predicting neural architecture performance is a challenging task and is crucial to neural architecture design and search. Existing approaches either rely on neural performance predictors which are limited to modeling architectures in a predefined design space involving specific sets of operators and…

2023

Reparameterization through Spatial Gradient Scaling

ICLR 2023poster

Reparameterization aims to improve the generalization of deep neural networks by transforming a convolution operation into equivalent multi-branched structures during training. However, there exists a gap in understanding how reparameterization may change and benefit learning processes for neural ne…

2023

Search-Map-Search: A Frame Selection Paradigm for Action Recognition

CVPR 2023poster

Despite the success of deep learning in video understanding tasks, processing every frame in a video is computationally expensive and often unnecessary in real-time applications. Frame selection aims to extract the most informative and representative frames to help a model better understand video co…

2022

MatRank: Text Re-ranking by Latent Preference Matrix

EMNLP 2022finding

Text ranking plays a key role in providing content that best answers user queries. It is usually divided into two sub-tasks to perform efficient information retrieval given a query: text retrieval and text re-ranking. Recent research on pretrained language models (PLM) has demonstrated efficiency an…

Cited by 1SourcePDFScholar
2022

R5: Rule Discovery with Reinforced and Recurrent Relational Reasoning

ICLR 2022spotlight

Systematicity, i.e., the ability to recombine known parts and rules to form new sequences while reasoning over relational data, is critical to machine intelligence. A model with strong systematicity is able to train on small-scale tasks and generalize to large-scale tasks. In this paper, we propose…

2021

Generative Adversarial Neural Architecture Search

IJCAI 2021poster

Despite the empirical success of neural architecture search (NAS) in deep learning applications, the optimality, reproducibility and cost of NAS schemes remain hard to assess. In this paper, we propose Generative Adversarial NAS (GA-NAS) with theoretically provable convergence guarantees, promoting…

Cited by 14SourcePDFScholar