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Xiang Chen

89 accepted papers

2026

DRFusion: Drift-Resilient Temporally Consistent Infrared–Visible Video Fusion

ICML 2026poster

Infrared and visible video fusion is essential for achieving comprehensive perception in dynamic scenes. However, maintaining temporal consistency remains a formidable challenge. Conventional methods relying on optical flow often suffer from geometric rigidity and ghosting artifacts. Moreover, stand…

Cited by 0SourceScholar
2026

DeLiVR: Differential Spatiotemporal Lie Bias for Efficient Video Deraining

ICLR 2026poster

Videos captured in the wild often suffer from rain streaks, blur, and noise. In addition, even slight changes in camera pose can amplify cross-frame mismatches and temporal artifacts. Existing methods rely on optical flow or heuristic alignment, which are computationally expensive and less robust. T…

Cited by 0SourcecodeScholar
2026

Facial Dynamics in Video: Instruction Tuning for Improved Facial Expression Perception and Contextual Awareness

AAAI 2026technical

Facial expression captioning has found widespread application across various domains. Recently, the emergence of video Multimodal Large Language Models (MLLMs) has shown promise in general video understanding tasks. However, describing facial expressions within videos poses two major challenges for

Cited by 0SourcePDFScholar
2026

FastViDAR: Real-Time Omnidirectional Depth Estimation Via Alternative Hierarchical Attention

ICRA 2026poster

In this paper, we propose FastViDAR, a novel framework that takes four fisheye camera inputs and produces a full 360 depth map along with per-camera depth, fusion depth, and confidence estimates. Our main contributions are: (1) We introduce Alternative Hierarchical Attention (AHA) mechanism that eff…

2026

FoundIR-v2: Optimizing Pre-Training Data Mixtures for Image Restoration Foundation Model

CVPR 2026

Recent studies have witnessed significant advances in image restoration foundation models driven by improvements in the scale and quality of pre-training data. In this work, we find that the data mixture proportions from different restoration tasks are also a critical factor directly determining the

Cited by 0SourcecodeScholar
2026

Improving Explicit Dynamic Gaussian Splatting Optimization via Update Mixture

ICML 2026poster

3D Gaussian Splatting (3DGS) enables real-time, high-fidelity view synthesis via explicit scene representations and has recently been extended to dynamic scene modeling. In spite of excellent quality and interpretability, we find explicit Dynamic GS often exhibits generalization degradation in large…

Cited by 0SourceScholar
2026

MultiMedBench: A Scenario-Aware Benchmark for Evaluating Knowledge Editing in Medical VQA

AAAI 2026technical

Knowledge editing (KE) provides a scalable approach for updating factual knowledge in large language models without full retraining. While previous studies have demonstrated effectiveness in general domains and medical QA tasks, little attention has been paid to KE in multimodal medical scenarios. U

Cited by 0SourcePDFScholar
2026

Potent but Stealthy: Rethink Profile Pollution Against Sequential Recommendation via Bi-Level Constrained Reinforcement Paradigm

AAAI 2026technical

Sequential Recommenders, which exploit dynamic user intents through interaction sequences, are vulnerable to adversarial attacks. While existing attacks primarily rely on data poisoning, they require large-scale user access or fake profiles thus lacking practicality. In this paper, we focus on the P

Cited by 0SourcePDFScholar
2026

Reflect Then Learn: Active Prompting for Information Extraction Guided by Introspective Confusion

AAAI 2026technical

Large Language Models (LLMs) show remarkable potential for few-shot information extraction (IE), yet their performance is highly sensitive to the choice of in-context examples. Conventional selection strategies often fail to provide informative guidance, as they overlook a key source of model fallib

Cited by 0SourcePDFScholar
2026

Rethinking Rainy 3D Scene Reconstruction via Perspective Transforming and Brightness Tuning

AAAI 2026technical

Rain degrades the visual quality of multi-view images, which are essential for 3D scene reconstruction, resulting in inaccurate and incomplete reconstruction results. Existing datasets often overlook two critical characteristics of real rainy 3D scenes: the viewpoint-dependent variation in the appea

Cited by 0SourcePDFScholar
2026

ToProVAR: Efficient Visual Autoregressive Modeling via Tri-Dimensional Entropy-Aware Semantic Analysis and Sparsity Optimization

ICLR 2026poster

Visual Autoregressive (VAR) models enhance generation speed but face a critical efficiency bottleneck in later stages. In this paper, we present a novel optimization framework for VAR models that fundamentally differs from prior approaches such as FastVAR and SkipVAR. Instead of relying on heuristic…

Cited by 0SourceScholar
2026

UniRain: Unified Image Deraining with RAG-based Dataset Distillation and Multi-objective Reweighted Optimization

CVPR 2026

Despite significant progress has been made in image deraining, we note that most existing methods are often developed for only specific types of rain degradation and fail to generalize across diverse real-world rainy scenes. How to effectively model different rain degradations within a universal fra

Cited by 0SourcecodeScholar
2026

Unpaired Image Deraining Using Reward-Guided Self-Reinforcement Strategy

CVPR 2026

Unsupervised deraining has attracted attention for its ability to learn the real-world distribution of rain without paired supervision. However, the lack of strong constraints makes it difficult for the network to converge, especially with the complex diversity of rain degradation. A key motivation

Cited by 0SourceScholar
2026

VipAct: Visual-Perception Enhancement via Specialized VLM Agent Collaboration and Tool-use

AAAI 2026technical

While vision-language models (VLMs) have demonstrated remarkable performance across various tasks combining textual and visual information, they continue to struggle with fine-grained visual perception tasks that require detailed pixel-level analysis. Effectively eliciting comprehensive reasoning fr

Cited by 0SourcePDFScholar
2025

AIA: Autoregression-Based Injection Attacks Against Text2SQL Models

AAAI 2025technical

To facilitate understanding of users' diverse queries against the back-end databases in web applications, researchers have introduced Text-to-SQL (Text2SQL) models that can generate well-structured SQL queries from users' query texts in natural language. As the Text2SQL model decouples the user quer…

Cited by 0SourcePDFScholar
2025

Agentic Knowledgeable Self-awareness

ACL 2025long

Large Language Models (LLMs) have achieved considerable performance across various agentic planning tasks. However, traditional approaches adopt a “flood irrigation” methodology that indiscriminately injects gold trajectories, external feedback, and domain knowledge into agent models. This practice…

2025

Beyond Chain-of-Thought: A Survey of Chain-of-X Paradigms for LLMs

COLING 2025main

Chain-of-Thought (CoT) has been a widely adopted prompting method, eliciting impressive reasoning abilities of Large Language Models (LLMs). Inspired by the sequential thought structure of CoT, a number of Chain-of-X (CoX) methods have been developed to address challenges across diverse domains and…

Cited by 22SourcePDFScholar
2025

DeRainGS: Gaussian Splatting for Enhanced Scene Reconstruction in Rainy Environments

AAAI 2025technical

Reconstruction under adverse rainy conditions poses significant challenges due to reduced visibility and the distortion of visual perception. These conditions can severely impair the quality of geometric maps, which is essential for applications ranging from autonomous planning to environmental moni…

Cited by 0SourcePDFScholar
2025

Depth-Centric Dehazing and Depth-Estimation from Real-World Hazy Driving Video

AAAI 2025technical

In this paper, we study the challenging problem of simultaneously removing haze and estimating depth from real monocular hazy videos. These tasks are inherently complementary: enhanced depth estimation improves dehazing via the atmospheric scattering model (ASM), while superior dehazing contributes…

2025

Disambiguation in Conversational Question Answering in the Era of LLMs and Agents: A Survey

EMNLP 2025

Ambiguity remains a fundamental challenge in Natural Language Processing (NLP) due to the inherent complexity and flexibility of human language. With the advent of Large Language Models (LLMs), addressing ambiguity has become even more critical due to their expanded capabilities and applications. In

2025

Doc-React: Multi-page Heterogeneous Document Question-answering

ACL 2025short

Answering questions over multi-page, multimodal documents, including text and figures, is a critical challenge for applications that require answers to integrate information across multiple modalities and contextual dependencies. Existing methods, such as single-turn retrieval-augmented generation (…

Cited by 0SourcePDFScholar
2025

ECLAIR: Enhanced Clarification for Interactive Responses

AAAI 2025technical

We present ECLAIR (Enhanced CLArification for Interactive Responses), a novel unified and end-to-end framework for interactive disambiguation in enterprise AI assistants. ECLAIR generates clarification questions for ambiguous user queries and resolves ambiguity based on the user's response. We intro…

Cited by 1SourcePDFScholar
2025

ECLAIR: Enhanced Clarification for Interactive Responses in an Enterprise AI Assistant

AAAI 2025technical

Large language models (LLMs) have shown remarkable progress in understanding and generating natural language across various applications. However, they often struggle with resolving ambiguities in real-world, enterprise-level interactions, where context and domain-specific knowledge play a crucial r…

Cited by 0SourcePDFScholar
2025

Explainable Chain-of-Thought Reasoning: An Empirical Analysis on State-Aware Reasoning Dynamics

EMNLP 2025

Recent advances in chain-of-thought (CoT) prompting have demonstrated the ability of large language models (LLMs) to perform multi-step reasoning. While prior work focuses on improving CoT generation quality or attributing token-level importance, we propose a novel framework to structurally analyze

Cited by 0SourcePDFScholar
2025

FoundIR: Unleashing Million-scale Training Data to Advance Foundation Models for Image Restoration

ICCV 2025poster

Despite the significant progress made by all-in-one models in universal image restoration, existing methods suffer from a generalization bottleneck in real-world scenarios, as they are mostly trained on small-scale synthetic datasets with limited degradations. Therefore, large-scale high-quality rea…

Cited by 0SourcePDFScholar
2025

From Selection to Generation: A Survey of LLM-based Active Learning

ACL 2025long

Active Learning (AL) has been a powerful paradigm for improving model efficiency and performance by selecting the most informative data points for labeling and training. In recent active learning frameworks, Large Language Models (LLMs) have been employed not only for selection but also for generati…

Cited by 0SourcePDFScholar
2025

Fully Dynamic Embedding into $\ell_p$ Spaces

ICML 2025poster

Metric embeddings are fundamental in machine learning, enabling similarity search, dimensionality reduction, and representation learning. They underpin modern architectures like transformers and large language models, facilitating scalable training and improved generalization. Theoretically, the cla…

Cited by 0SourcePDFScholar
2025

GraPPI: A Retrieve-Divide-Solve GraphRAG Framework for Large-scale Protein-protein Interaction Exploration

NAACL 2025findings

Drug discovery (DD) has tremendously contributed to maintaining and improving public health. Hypothesizing that inhibiting protein misfolding can slow disease progression, researchers focus on target identification (Target ID) to find protein structures for drug binding. While Large Language Models…

2025

Graph-guided Cross-composition Feature Disentanglement for Compositional Zero-shot Learning

ACL 2025finding

Disentanglement of visual features of primitives (i.e., attributes and objects) has shown exceptional results in Compositional Zero-shot Learning (CZSL). However, due to the feature divergence of an attribute (resp. object) when combined with different objects (resp. attributes), it is challenging t…

2025

K-Buffers: A Plug-in Method for Enhancing Neural Fields with Multiple Buffers

IJCAI 2025

Neural fields are now the central focus of research in 3D vision and computer graphics. Existing methods mainly focus on various scene representations, such as neural points and 3D Gaussians. However, few works have studied the rendering process to enhance the neural fields. In this work, we propose

2025

MLLM can see? Dynamic Correction Decoding for Hallucination Mitigation

ICLR 2025poster

Multimodal Large Language Models (MLLMs) frequently exhibit hallucination phenomena, but the underlying reasons remain poorly understood. In this paper, we present an empirical analysis and find that, although MLLMs incorrectly generate the objects in the final output, they are actually able to reco…

2025

Numerical Pruning for Efficient Autoregressive Models

AAAI 2025technical

Transformers have emerged as the leading architecture in deep learning, proving to be versatile and highly effective across diverse domains beyond language and image processing. However, their impressive performance often incurs high computational costs due to their substantial model size. This pape…

Cited by 10SourcePDFScholar
2025

OCEAN: Offline Chain-of-thought Evaluation and Alignment in Large Language Models

ICLR 2025poster

Offline evaluation of LLMs is crucial in understanding their capacities, though current methods remain underexplored in existing research. In this work, we focus on the offline evaluation of the chain-of-thought capabilities and show how to optimize LLMs based on the proposed evaluation method. To e…

Cited by 0SourcePDFScholar
2025

Rethinking Nighttime Image Deraining via Learnable Color Space Transformation

NeurIPS 2025poster

Compared to daytime image deraining, nighttime image deraining poses significant challenges due to inherent complexities of nighttime scenarios and the lack of high-quality datasets that accurately represent the coupling effect between rain and illumination. In this paper, we rethink the task of nig…

Cited by 0SourcecodeScholar
2024

Agent Planning with World Knowledge Model

NeurIPS 2024poster

Recent endeavors towards directly using large language models (LLMs) as agent models to execute interactive planning tasks have shown commendable results. Despite their achievements, however, they still struggle with brainless trial-and-error in global planning and generating hallucinatory actions i…

2024

Bidirectional Multi-Scale Implicit Neural Representations for Image Deraining

CVPR 2024poster

How to effectively explore multi-scale representations of rain streaks is important for image deraining. In contrast to existing Transformer-based methods that depend mostly on single-scale rain appearance we develop an end-to-end multi-scale Transformer that leverages the potentially useful feature…

2024

Continual Multimodal Knowledge Graph Construction

IJCAI 2024poster

Current Multimodal Knowledge Graph Construction (MKGC) models struggle with the real-world dynamism of continuously emerging entities and relations, often succumbing to catastrophic forgetting—loss of previously acquired knowledge. This study introduces benchmarks aimed at fostering the development…

2024

DeCoT: Debiasing Chain-of-Thought for Knowledge-Intensive Tasks in Large Language Models via Causal Intervention

ACL 2024long

Large language models (LLMs) often require task-relevant knowledge to augment their internal knowledge through prompts. However, simply injecting external knowledge into prompts does not guarantee that LLMs can identify and use relevant information in the prompts to conduct chain-of-thought reasonin…

Cited by 4SourcePDFScholar
2024

FactCHD: Benchmarking Fact-Conflicting Hallucination Detection

IJCAI 2024poster

Despite their impressive generative capabilities, LLMs are hindered by fact-conflicting hallucinations in real-world applications. The accurate identification of hallucinations in texts generated by LLMs, especially in complex inferential scenarios, is a relatively unexplored area. To address this g…

2024

HanDiffuser: Text-to-Image Generation With Realistic Hand Appearances

CVPR 2024poster

Text-to-image generative models can generate high-quality humans but realism is lost when generating hands. Common artifacts include irregular hand poses shapes incorrect numbers of fingers and physically implausible finger orientations. To generate images with realistic hands we propose a novel dif…

Cited by 27SourcePDFScholar
2024

Infinite-Dimensional Feature Interaction

NeurIPS 2024poster

The past neural network design has largely focused on feature \textit{representation space} dimension and its capacity scaling (e.g., width, depth), but overlooked the feature \textit{interaction space} scaling. Recent advancements have shown shifted focus towards element-wise multiplication to fa…

Cited by 2SourcePDFScholar
2024

Knowledge Mechanisms in Large Language Models: A Survey and Perspective

EMNLP 2024finding

Understanding knowledge mechanisms in Large Language Models (LLMs) is crucial for advancing towards trustworthy AGI. This paper reviews knowledge mechanism analysis from a novel taxonomy including knowledge utilization and evolution. Knowledge utilization delves into the mechanism of memorization, c…

Cited by 20SourcePDFScholar
2024

Learning a Spiking Neural Network for Efficient Image Deraining

IJCAI 2024poster

Recently, spiking neural networks (SNNs) have demonstrated substantial potential in computer vision tasks. In this paper, we present an Efficient Spiking Deraining Network, called ESDNet. Our work is motivated by the observation that rain pixel values will lead to a more pronounced intensity of spik…

2024

OneGen: Efficient One-Pass Unified Generation and Retrieval for LLMs

EMNLP 2024finding

Despite the recent advancements in Large Language Models (LLMs), which have significantly enhanced the generative capabilities for various NLP tasks, LLMs still face limitations in directly handling retrieval tasks. However, many practical applications demand the seamless integration of both retriev…

2024

Out-of-Distribution Detection via Deep Multi-Comprehension Ensemble

ICML 2024poster

Recent research works demonstrate that one of the significant factors for the model Out-of-Distirbution detection performance is the scale of the OOD feature representation field. Consequently, model ensemble emerges as a trending method to expand this feature representation field leveraging expecte…

Cited by 5SourcePDFScholar
2024

Rethinking Multi-Scale Representations in Deep Deraining Transformer

AAAI 2024technical

Existing Transformer-based image deraining methods depend mostly on fixed single-input single-output U-Net architecture. In fact, this not only neglects the potentially explicit information from multiple image scales, but also lacks the capability of exploring the complementary implicit information…

Cited by 13SourcePDFScholar
2024

Structural Entropy Based Graph Structure Learning for Node Classification

AAAI 2024technical

As one of the most common tasks in graph data analysis, node classification is frequently solved by using graph structure learning (GSL) techniques to optimize graph structures and learn suitable graph neural networks. Most of the existing GSL methods focus on fusing different structural features (b…

Cited by 10SourcePDFScholar
2024

TAME-RD: Text Assisted Replication of Image Multi-Adjustments for Reverse Designing

ACL 2024findings

Given a source and its edited version performed based on human instructions in natural language, how do we extract the underlying edit operations, to automatically replicate similar edits on other images? This is the problem of reverse designing, and we present TAME-RD, a model to solve this problem…

Cited by 0SourcePDFScholar
2024

ToolChain*: Efficient Action Space Navigation in Large Language Models with A* Search

ICLR 2024poster

Large language models (LLMs) have demonstrated powerful decision-making and planning capabilities in solving complicated real-world problems. LLM-based autonomous agents can interact with diverse tools (e.g., functional APIs) and generate solution plans that execute a series of API function calls in…

Cited by 52SourcePDFScholar
2024

Towards Universal Mesh Movement Networks

NeurIPS 2024spotlight

Solving complex Partial Differential Equations (PDEs) accurately and efficiently is an essential and challenging problem in all scientific and engineering disciplines. Mesh movement methods provide the capability to improve the accuracy of the numerical solution without increasing the overall mesh d…

2024

Unified Hallucination Detection for Multimodal Large Language Models

ACL 2024long

Despite significant strides in multimodal tasks, Multimodal Large Language Models (MLLMs) are plagued by the critical issue of hallucination. The reliable detection of such hallucinations in MLLMs has, therefore, become a vital aspect of model evaluation and the safeguarding of practical application…

2023

Event-Centric Query Expansion in Web Search

ACL 2023industry

In search engines, query expansion (QE) is a crucial technique to improve search experience. Previous studies often rely on long-term search log mining, which leads to slow updates and is sub-optimal for time-sensitive news searches. In this work, we present Event-Centric Query Expansion (EQE), the…

Cited by 2SourcePDFScholar
2023

Fed-CBS: A Heterogeneity-Aware Client Sampling Mechanism for Federated Learning via Class-Imbalance Reduction

ICML 2023poster

Due to the often limited communication bandwidth of edge devices, most existing federated learning (FL) methods randomly select only a subset of devices to participate in training at each communication round. Compared with engaging all the available clients, such a random-selection mechanism could l…

Cited by 58SourcePDFScholar
2023

Hybrid CNN-Transformer Feature Fusion for Single Image Deraining

AAAI 2023technical

Since rain streaks exhibit diverse geometric appearances and irregular overlapped phenomena, these complex characteristics challenge the design of an effective single image deraining model. To this end, rich local-global information representations are increasingly indispensable for better satisfyin…

2023

Learning a Sparse Transformer Network for Effective Image Deraining

CVPR 2023highlight

Transformers-based methods have achieved significant performance in image deraining as they can model the non-local information which is vital for high-quality image reconstruction. In this paper, we find that most existing Transformers usually use all similarities of the tokens from the query-key p…

2023

Multimodal Analogical Reasoning over Knowledge Graphs

ICLR 2023poster

Analogical reasoning is fundamental to human cognition and holds an important place in various fields. However, previous studies mainly focus on single-modal analogical reasoning and ignore taking advantage of structure knowledge. Notably, the research in cognitive psychology has demonstrated that i…

2023

On Analyzing the Role of Image for Visual-Enhanced Relation Extraction (Student Abstract)

AAAI 2023technical

Multimodal relation extraction is an essential task for knowledge graph construction. In this paper, we take an in-depth empirical analysis that indicates the inaccurate information in the visual scene graph leads to poor modal alignment weights, further degrading performance. Moreover, the visual s…

2023

One Model for All Domains: Collaborative Domain-Prefix Tuning for Cross-Domain NER

IJCAI 2023poster

Cross-domain NER is a challenging task to address the low-resource problem in practical scenarios. Previous typical solutions mainly obtain a NER model by pre-trained language models (PLMs) with data from a rich-resource domain and adapt it to the target domain. Owing to the mismatch issue among ent…

2023

Online PCA in Converging Self-consistent Field Equations

NeurIPS 2023poster

Self-consistent Field (SCF) equation is a type of nonlinear eigenvalue problem in which the matrix to be eigen-decomposed is a function of its own eigenvectors. It is of great significance in computational science for its connection to the Schrödinger equation. Traditional fixed-point iteration meth…

Cited by 0SourcePDFScholar
2023

Reasoning with Language Model Prompting: A Survey

ACL 2023long

Reasoning, as an essential ability for complex problem-solving, can provide back-end support for various real-world applications, such as medical diagnosis, negotiation, etc. This paper provides a comprehensive survey of cutting-edge research on reasoning with language model prompting. We introduce…

2023

Self-Supervised Interest Transfer Network via Prototypical Contrastive Learning for Recommendation

AAAI 2023technical

Cross-domain recommendation has attracted increasing attention from industry and academia recently. However, most existing methods do not exploit the interest invariance between domains, which would yield sub-optimal solutions. In this paper, we propose a cross-domain recommendation method: Self-sup…

2022

ATPFL: Automatic Trajectory Prediction Model Design Under Federated Learning Framework

CVPR 2022poster

Although the Trajectory Prediction (TP) model has achieved great success in computer vision and robotics fields, its architecture and training scheme design rely on heavy manual work and domain knowledge, which is not friendly to common users. Besides, the existing works ignore Federated Learning (F…

Cited by 45PDFScholar
2022

Decoupling Knowledge from Memorization: Retrieval-augmented Prompt Learning

NeurIPS 2022accept

Prompt learning approaches have made waves in natural language processing by inducing better few-shot performance while they still follow a parametric-based learning paradigm; the oblivion and rote memorization problems in learning may encounter unstable generalization issues. Specifically, vanilla…

2022

Dense Learning Based Semi-Supervised Object Detection

CVPR 2022poster

The ultimate goal of semi-supervised object detection (SSOD) is to facilitate the utilization and deployment of detectors in actual applications with the help of a large amount of unlabeled data. Although a few works have proposed various self-training-based methods or consistency-regularization-bas…

Cited by 87PDFcodeScholar
2022

Differentiable Prompt Makes Pre-trained Language Models Better Few-shot Learners

ICLR 2022poster

Large-scale pre-trained language models have contributed significantly to natural language processing by demonstrating remarkable abilities as few-shot learners. However, their effectiveness depends mainly on scaling the model parameters and prompt design, hindering their implementation in most real…

2022

Discord Questions: A Computational Approach To Diversity Analysis in News Coverage

EMNLP 2022finding

There are many potential benefits to news readers accessing diverse sources. Modern news aggregators do the hard work of organizing the news, offering readers a plethora of source options, but choosing which source to read remains challenging.We propose a new framework to assist readers in identifyi…

2022

Domain-Adaptive Text Classification with Structured Knowledge from Unlabeled Data

IJCAI 2022poster

Domain adaptive text classification is a challenging problem for the large-scale pretrained language models because they often require expensive additional labeled data to adapt to new domains. Existing works usually fails to leverage the implicit relationships among words across domains. In this pa…

2022

Good Visual Guidance Make A Better Extractor: Hierarchical Visual Prefix for Multimodal Entity and Relation Extraction

NAACL 2022findings

Multimodal named entity recognition and relation extraction (MNER and MRE) is a fundamental and crucial branch in information extraction. However, existing approaches for MNER and MRE usually suffer from error sensitivity when irrelevant object images incorporated in texts. To deal with these issues…

2022

LightNER: A Lightweight Tuning Paradigm for Low-resource NER via Pluggable Prompting

COLING 2022main

Most NER methods rely on extensive labeled data for model training, which struggles in the low-resource scenarios with limited training data. Existing dominant approaches usually suffer from the challenge that the target domain has different label sets compared with a resource-rich source domain, wh…

2022

M2N: Mesh Movement Networks for PDE Solvers

NeurIPS 2022accept

Numerical Partial Differential Equation (PDE) solvers often require discretizing the physical domain by using a mesh. Mesh movement methods provide the capability to improve the accuracy of the numerical solution without introducing extra computational burden to the PDE solver, by increasing mesh re…

Cited by 19SourcePDFScholar
2022

ReSel: N-ary Relation Extraction from Scientific Text and Tables by Learning to Retrieve and Select

EMNLP 2022main

We study the problem of extracting N-ary relation tuples from scientific articles. This task is challenging because the target knowledge tuples can reside in multiple parts and modalities of the document. Our proposed method ReSel decomposes this task into a two-stage procedure that first retrieves…

2022

Title2Event: Benchmarking Open Event Extraction with a Large-scale Chinese Title Dataset

EMNLP 2022main

Event extraction (EE) is crucial to downstream tasks such as new aggregation and event knowledge graph construction. Most existing EE datasets manually define fixed event types and design specific schema for each of them, failing to cover diverse events emerging from the online text. Moreover, news…

2022

Towards Realistic Low-resource Relation Extraction: A Benchmark with Empirical Baseline Study

EMNLP 2022finding

This paper presents an empirical study to build relation extraction systems in low-resource settings. Based upon recent pre-trained language models, we comprehensively investigate three schemes to evaluate the performance in low-resource settings: (i) different types of prompt-based methods with few…

2022

Unpaired Deep Image Dehazing Using Contrastive Disentanglement Learning

ECCV 2022poster

"We offer a practical unpaired learning based image dehazing network from an unpaired set of clear and hazy images. This paper provides a new perspective to treat image dehazing as a two-class separated factor disentanglement task, i.e, the task-relevant factor of clear image reconstruction and the…

Cited by 45SourcePDFScholar
2022

Unpaired Deep Image Deraining Using Dual Contrastive Learning

CVPR 2022poster

Learning single image deraining (SID) networks from an unpaired set of clean and rainy images is practical and valuable as acquiring paired real-world data is almost infeasible. However, without the paired data as the supervision, learning a SID network is challenging. Moreover, simply using existin…

Cited by 196PDFScholar
2021

Cross-Domain Sentiment Classification with Contrastive Learning and Mutual Information Maximization

ICASSP 2021accepted

Existing language models usually require large amount of labeled data and are severely challenged by domain shift. In this work we propose a novel model for cross-domain sentiment classification - CLIM - Contrastive Learning with mutual Information Maximization, to explore the potential of contrasti…

Cited by 0SourceScholar
2021

Document-level Relation Extraction as Semantic Segmentation

IJCAI 2021poster

Document-level relation extraction aims to extract relations among multiple entity pairs from a document. Previously proposed graph-based or transformer-based models utilize the entities independently, regardless of global information among relational triples. This paper approaches the problem by pr…

2021

Few-Shot Intent Detection via Contrastive Pre-Training and Fine-Tuning

EMNLP 2021main

In this work, we focus on a more challenging few-shot intent detection scenario where many intents are fine-grained and semantically similar. We present a simple yet effective few-shot intent detection schema via contrastive pre-training and fine-tuning. Specifically, we first conduct self-supervise…

2021

Progressive Modality Reinforcement for Human Multimodal Emotion Recognition From Unaligned Multimodal Sequences

CVPR 2021poster

Human multimodal emotion recognition involves time-series data of different modalities, such as natural language, visual motions, and acoustic behaviors. Due to the variable sampling rates for sequences from different modalities, the collected multimodal streams are usually unaligned. The asynchrony…

Cited by 167PDFScholar
2020

An Image Enhancing Pattern-based Sparsity for Real-time Inference on Mobile Devices

ECCV 2020poster

Weight pruning has been widely acknowledged as a straightforward and effective method to eliminate redundancy in Deep Neural Networks (DNN), thereby achieving acceleration on various platforms. However, most of the pruning techniques are essentially trade-offs between model accuracy and regularity w…

2020

Cross-Domain Semantic Segmentation via Domain-Invariant Interactive Relation Transfer

CVPR 2020poster

Exploiting photo-realistic synthetic data to train semantic segmentation models has received increasing attention over the past years. However, the domain mismatch between synthetic and real images will cause a significant performance drop when the model trained with synthetic images is directly app…

Cited by 117PDFScholar