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Liang CHEN

84 accepted papers

2026

Advancing Off-Road Autonomous Driving: The Large-Scale ORAD-3D Dataset and Comprehensive Benchmarks

ICRA 2026poster

A major bottleneck in off-road autonomous driving research lies in the scarcity of large-scale, high-quality datasets and benchmarks. To bridge this gap, we present ORAD-3D, which, to the best of our knowledge, is the largest dataset specifically curated for off-road autonomous driving. ORAD-3D cove…

2026

AutoWebWorld: Synthesizing Infinite Verifiable Web Environments via Finite State Machines

ICML 2026poster

The performance of autonomous Web GUI agents heavily relies on the quality and quantity of their training data. However, a fundamental bottleneck persists: collecting interaction trajectories from real-world websites is expensive and difficult to verify. The underlying state transitions are hidden, …

Cited by 0SourceScholar
2026

BabyVision: Visual Reasoning Beyond Language

ICML 2026poster

While humans develop core visual skills long before acquiring language, contemporary Multimodal LLMs (MLLMs) still rely heavily on linguistic priors to compensate for their fragile visual understanding. We uncovered a crucial fact: state-of-the-art MLLMs consistently fail on basic visual tasks that …

Cited by 0SourceScholar
2026

Bridge: A Cross-Modal Learning Framework for Unified Semantic Representation in Noisy Communication

IJCAI 2026

Multimodal semantic communication systems face a critical challenge in extracting and aligning semantic features across heterogeneous modalities within a unified representation space, particularly under noisy transmission conditions. To address this, we propose Bridge, a cross-modal learning framewo

Cited by 0Scholar
2026

EEPO: Exploration-Enhanced Policy Optimization via Sample-Then-Forget

ICLR 2026poster

Balancing exploration and exploitation remains a central challenge in reinforcement learning with verifiable rewards (RLVR) for large language models (LLMs). Current RLVR methods often overemphasize exploitation, leading to entropy collapse, reduced exploratory capacity, and ultimately limited perfo…

Cited by 0SourcecodeScholar
2026

Expressive yet Efficient Feature Expansion with Adaptive Cross-Hadamard Products

ICLR 2026poster

Recent theoretical advances reveal that the Hadamard product induces nonlinear representations and implicit high-dimensional mappings for the field of deep learning, yet their practical deployment in efficient vision models remains underdeveloped. To address this gap, we introduce the Adaptive Cross…

Cited by 0SourceScholar
2026

GT-SNT: A Linear-Time Transformer for Large-Scale Graphs via Spiking Node Tokenization

AAAI 2026technical

Graph Transformers (GTs), which integrate message passing and self-attention mechanisms simultaneously, have achieved promising empirical results in graph prediction tasks. However, the design of scalable and topology-aware node tokenization has lagged behind other modalities. This gap becomes criti

Cited by 0SourcePDFScholar
2026

Learning Useful Supervision for Reinforcement Learning in Reasoning Models

ICML 2026poster

Supervised fine-tuning (SFT) and reinforcement learning with verifiable rewards (RLVR) are two widely used post-training paradigms for improving the reasoning ability of large language models (LLMs). Recent methods attempt to integrate SFT and RLVR in a single stage by reweighting or scheduling thei…

Cited by 0SourceScholar
2026

Spiking Heterogeneous Graph Attention Networks

AAAI 2026technical

Real-world graphs or networks are usually heterogeneous, involving multiple types of nodes and relationships. Heterogeneous graph neural networks (HGNNs) can effectively handle these diverse nodes and edges, capturing heterogeneous information within the graph, thus exhibiting outstanding performanc

Cited by 0SourcePDFScholar
2026

VCG-Bench: Towards A Unified Visual-Centric Benchmark for Structured Generation and Editing

ICML 2026poster

Despite the rapid advancements in Vision-Language Models (VLMs), a critical gap remains in their ability to handle structured, controllable diagrammatic tasks essential for professional workflows, as existing methods predominantly rely on pixel-based synthesis which operates in probabilistic pixel s…

Cited by 0SourceScholar
2025

A Spark of Vision-Language Intelligence: 2-Dimensional Autoregressive Transformer for Efficient Finegrained Image Generation

ICLR 2025poster

This work tackles the information loss bottleneck of vector-quantization (VQ) autoregressive image generation by introducing a novel model architecture called the 2-Dimensional Autoregression (DnD) Transformer. The DnD-Transformer predicts more codes for an image by introducing a new direction, **mo…

2025

Looking Beyond Text: Reducing Language Bias in Large Vision-Language Models via Multimodal Dual-Attention and Soft-Image Guidance

EMNLP 2025

Large vision-language models (LVLMs) have achieved impressive results in vision-language tasks. However, Therefore, we propose LACING, designed to address such bias with Mu ̲ L timodal Du ̲ A l-attention Me ̲ C han ̲ I sm (MDA) a ̲ N d Soft-Image ̲ G uidance (SIG). Specifically, MDA adopts a paralle

Cited by 0SourcePDFScholar
2025

MMEvalPro: Calibrating Multimodal Benchmarks Towards Trustworthy and Efficient Evaluation

NAACL 2025long

Large Multimodal Models (LMMs) exhibit impressive cross-modal understanding and reasoning abilities, often assessed through multiple-choice questions (MCQs) that include an image, a question, and several options. However, many benchmarks used for such evaluations suffer from systematic biases. Remar…

2025

Measuring Diversity in Synthetic Datasets

ICML 2025poster

Large language models (LLMs) are widely adopted to generate synthetic datasets for various natural language processing (NLP) tasks, such as text classification and summarization. However, accurately measuring the diversity of these synthetic datasets—an aspect crucial for robust model performance—re…

2025

Medusa: A Multi-Scale High-order Contrastive Dual-Diffusion Approach for Multi-View Clustering

CVPR 2025poster

Deep multi-view clustering methods utilize information from multiple views to achieve enhanced clustering results and have gained increasing popularity in recent years. Most existing methods typically focus on either inter-view or intra-view relationships, aiming to align information across views or…

Cited by 0SourcePDFScholar
2025

NTPP: Generative Speech Language Modeling for Dual-Channel Spoken Dialogue via Next-Token-Pair Prediction

ICML 2025poster

Inspired by the impressive capabilities of GPT-4o, there is growing interest in enabling speech language models (SLMs) to engage in natural, fluid spoken interactions with humans. Recent advancements have led to the development of several SLMs that demonstrate promising results in this area. However…

Cited by 0SourcePDFScholar
2025

Omni-MATH: A Universal Olympiad Level Mathematic Benchmark for Large Language Models

ICLR 2025poster

Recent advancements in large language models (LLMs) have led to significant breakthroughs in mathematical reasoning capabilities. However, existing benchmarks like GSM8K or MATH are now being solved with high accuracy (e.g., OpenAI o1 achieves 94.8% on MATH dataset), indicating their inadequacy for…

Cited by 50SourcePDFScholar
2025

PEARL: Towards Permutation-Resilient LLMs

ICLR 2025poster

The in-context learning (ICL) capability of large language models (LLMs) enables them to perform challenging tasks using provided demonstrations. However, ICL is highly sensitive to the ordering of demonstrations, leading to instability in predictions. This paper shows that this vulnerability can be…

2025

ROD: RGB-Only Fast and Efficient Off-Road Freespace Detection

ICRA 2025

Off-road freespace detection is more challenging than on-road scenarios because of the blurred boundaries of traversable areas. Previous state-of-the-art (SOTA) methods employ multi-modal fusion of RGB images and LiDAR data. However, due to the significant increase in inference time when calculating

Cited by 2SourcecodeScholar
2025

RepObE: Representation Learning-Enhanced Obfuscation Encryption Modular Semantic Task Framework

IJCAI 2025

Model inversion and adversarial attacks in semantic communication pose risks, such as content leaks, alterations, and prediction inaccuracies, which threaten security and reliability. This paper introduces, from an attacker's viewpoint, a novel framework called RepObE (Representation Learning-Enhanc

Cited by 0SourcePDFScholar
2025

SG-FSM: A Self-Guiding Zero-Shot Prompting Paradigm for Multi-Hop Question Answering Based on Finite State Machine

NAACL 2025findings

Large Language Models with chain-of-thought prompting, such as OpenAI-o1, have shown impressive capabilities in natural language inference tasks. However, Multi-hop Question Answering (MHQA) remains challenging for many existing models due to issues like hallucination, error propagation, and limited…

2025

SNS-Bench: Defining, Building, and Assessing Capabilities of Large Language Models in Social Networking Services

ICML 2025poster

With the rapid advancement of Social Networking Services (SNS), the need for intelligent and efficient interaction within diverse platforms has become more crucial. Large Language Models (LLMs) play an important role in SNS as they possess the potential to revolutionize user experience, content gene…

Cited by 0SourcePDFScholar
2025

SuperGPQA: Scaling LLM Evaluation across 285 Graduate Disciplines

NeurIPS 2025poster

Large language models (LLMs) have demonstrated remarkable proficiency in mainstream academic disciplines such as mathematics, physics, and computer science. However, human knowledge encompasses over 200 specialized disciplines, far exceeding the scope of existing benchmarks. The capabilities of LLMs…

Cited by 215SourceScholar
2025

Vulnerability-Aware Alignment: Mitigating Uneven Forgetting in Harmful Fine-Tuning

ICML 2025poster

Harmful fine-tuning (HFT), performed directly on open-source LLMs or through Fine-tuning-as-a-Service, breaks safety alignment and poses significant threats. Existing methods aim to mitigate HFT risks by learning robust representation on alignment data or making harmful data unlearnable, but they tr…

Cited by 0SourcePDFScholar
2024

A Graph is Worth 1-bit Spikes: When Graph Contrastive Learning Meets Spiking Neural Networks

ICLR 2024poster

While contrastive self-supervised learning has become the de-facto learning paradigm for graph neural networks, the pursuit of higher task accuracy requires a larger hidden dimensionality to learn informative and discriminative full-precision representations, raising concerns about computation, memo…

2024

A Safe and Efficient Timed-Elastic-Band Planner for Unstructured Environments

IROS 2024poster

In unstructured environments with complex obstacles and obscure road boundaries, the local planner faces more severe challenges in terms of safety and real-time performance. In order to fulfill these emerging requirements, we propose a novel Timed-Elastic-Band approach for unstructured environments,…

Cited by 2SourceScholar
2024

An Image is Worth 1/2 Tokens After Layer 2: Plug-and-Play Inference Acceleration for Large Vision-Language Models

ECCV 2024oral

"In this study, we identify the inefficient attention phenomena in Large Vision-Language Models (LVLMs), notably within prominent models like LLaVA-1.5, QwenVL-Chat, and Video-LLaVA. We find that the attention computation over visual tokens is extremely inefficient in the deep layers of popular LVLM…

2024

Consecutive Batch Model Editing with HooK Layers

EMNLP 2024main

As the typical retraining paradigm is unacceptably time- and resource-consuming, researchers are turning to model editing to find an effective way that supports both consecutive and batch scenarios to edit the model behavior directly. Despite all these practical expectations, existing model editing…

2024

Decomposition for Enhancing Attention: Improving LLM-based Text-to-SQL through Workflow Paradigm

ACL 2024findings

In-context learning of large-language models (LLMs) has achieved remarkable success in the field of natural language processing, while extensive case studies reveal that the single-step chain-of-thought prompting approach faces challenges such as attention diffusion and inadequate performance in com…

2024

Distribution-Independent Cell Type Identification for Single-Cell RNA-seq Data

IJCAI 2024poster

Automatic cell type annotation aims to transfer the label knowledge from label-abundant reference data to label-scarce target data, which makes encouraging progress in single-cell RNA-seq data analysis. While previous works have focused on classifying close-set cells and detecting open-set cells dur…

Cited by 1SourcePDFScholar
2024

LFME: A Simple Framework for Learning from Multiple Experts in Domain Generalization

NeurIPS 2024poster

Domain generalization (DG) methods aim to maintain good performance in an unseen target domain by using training data from multiple source domains. While success on certain occasions are observed, enhancing the baseline across most scenarios remains challenging. This work introduces a simple yet eff…

2024

Large Language Models are not Fair Evaluators

ACL 2024long

In this paper, we uncover a positional bias in the evaluation paradigm of adopting large language models (LLMs), e.g., GPT-4, as a referee to score and compare the quality of responses generated by candidate models. We find that the quality ranking of candidate responses can be easily hacked by simp…

2024

MMICL: Empowering Vision-language Model with Multi-Modal In-Context Learning

ICLR 2024poster

Since the resurgence of deep learning, vision-language models (VLMs) enhanced by large language models (LLMs) have grown exponentially in popularity. However, while LLMs can utilize extensive background knowledge and task information with in-context learning, most VLMs still struggle with understan…

2024

Mitigating Language-Level Performance Disparity in mPLMs via Teacher Language Selection and Cross-lingual Self-Distillation

NAACL 2024long

Large-scale multilingual Pretrained Language Models (mPLMs) yield impressive performance on cross-language tasks, yet significant performance disparities exist across different languages within the same mPLM. Previous studies endeavored to narrow these disparities by supervise fine-tuning the mPLMs…

2024

PCA-Bench: Evaluating Multimodal Large Language Models in Perception-Cognition-Action Chain

ACL 2024findings

We present PCA-Bench, a multimodal decision-making benchmark for evaluating the integrated capabilities of Multimodal Large Language Models (MLLMs). Departing from previous benchmarks focusing on simplistic tasks and individual model capability, PCA-Bench introduces three complex scenarios: autonomo…

2024

Parameter-Efficient Fine-Tuning with Discrete Fourier Transform

ICML 2024poster

Low-rank adaptation (LoRA) has recently gained much interest in fine-tuning foundation models. It effectively reduces the number of trainable parameters by incorporating low-rank matrices $A$ and $B$ to represent the weight change, i.e., $\Delta W=BA$. Despite LoRA's progress, it faces storage chall…

2024

SELF-GUARD: Empower the LLM to Safeguard Itself

NAACL 2024long

With the increasing risk posed by jailbreak attacks, recent studies have investigated various methods to improve the safety of large language models (LLMs), mainly falling into two strategies: safety training and safeguards. Safety training involves fine-tuning the LLM with adversarial samples, whic…

2024

State Space Models on Temporal Graphs: A First-Principles Study

NeurIPS 2024poster

Over the past few years, research on deep graph learning has shifted from static graphs to temporal graphs in response to real-world complex systems that exhibit dynamic behaviors. In practice, temporal graphs are formalized as an ordered sequence of static graph snapshots observed at discrete time…

2024

TeFF: Tracking-enhanced Forgetting-free Few-shot 3D LiDAR Semantic Segmentation

IROS 2024

In autonomous driving, 3D LiDAR plays a crucial role in understanding the vehicle’s surroundings. However, the newly emerged, unannotated objects presents few-shot learning problem for semantic segmentation. This paper addresses the limitations of current few-shot semantic segmentation by exploiting

Cited by 2SourcecodeScholar
2024

UltraEdit: Instruction-based Fine-Grained Image Editing at Scale

NeurIPS 2024poster

This paper presents UltraEdit, a large-scale (~ 4M editing samples), automatically generated dataset for instruction-based image editing. Our key idea is to address the drawbacks in existing image editing datasets like InstructPix2Pix and MagicBrush, and provide a *systematic* approach to producing…

2024

VLFeedback: A Large-Scale AI Feedback Dataset for Large Vision-Language Models Alignment

EMNLP 2024main

As large vision-language models (LVLMs) evolve rapidly, the demand for high-quality and diverse data to align these models becomes increasingly crucial. However, the creation of such data with human supervision proves costly and time-intensive. In this paper, we investigate the efficacy of AI feedba…

2024

VQCNIR: Clearer Night Image Restoration with Vector-Quantized Codebook

AAAI 2024technical

Night photography often struggles with challenges like low light and blurring, stemming from dark environments and prolonged exposures. Current methods either disregard priors and directly fitting end-to-end networks, leading to inconsistent illumination, or rely on unreliable handcrafted priors to…

2024

WatME: Towards Lossless Watermarking Through Lexical Redundancy

ACL 2024long

Text watermarking has emerged as a pivotal technique for identifying machine-generated text. However, existing methods often rely on arbitrary vocabulary partitioning during decoding to embed watermarks, which compromises the availability of suitable tokens and significantly degrades the quality of…

2023

Beyond Factuality: A Comprehensive Evaluation of Large Language Models as Knowledge Generators

EMNLP 2023long main

Large language models (LLMs) outperform information retrieval techniques for downstream knowledge-intensive tasks when being prompted to generate world knowledge. However, community concerns abound regarding the factuality and potential implications of using this uncensored knowledge. In light of th…

Cited by 0SourcecodeScholar
2023

Domain Generalization via Rationale Invariance

ICCV 2023poster

This paper offers a new perspective to ease the challenge of domain generalization, which involves maintaining robust results even in unseen environments. Our design focuses on the decision-making process in the final classifier layer. Specifically, we propose treating the element-wise contributions…

Cited by 26PDFcodeScholar
2023

Generalized Cell Type Annotation and Discovery for Single-Cell RNA-Seq Data

AAAI 2023technical

The rapid development of single-cell RNA sequencing (scRNA-seq) technology allows us to study gene expression heterogeneity at the cellular level. Cell annotation is the basis for subsequent downstream analysis in single-cell data mining. Existing methods rarely explore the fine-grained semantic kno…

Cited by 5SourcePDFScholar
2023

Improved Test-Time Adaptation for Domain Generalization

CVPR 2023poster

The main challenge in domain generalization (DG) is to handle the distribution shift problem that lies between the training and test data. Recent studies suggest that test-time training (TTT), which adapts the learned model with test data, might be a promising solution to the problem. Generally, a T…

2023

On the Off-Target Problem of Zero-Shot Multilingual Neural Machine Translation

ACL 2023findings

While multilingual neural machine translation has achieved great success, it suffers from the off-target issue, where the translation is in the wrong language. This problem is more pronounced on zero-shot translation tasks. In this work, we find that failing in encoding discriminative target languag…

2023

On the Pareto Front of Multilingual Neural Machine Translation

NeurIPS 2023poster

In this work, we study how the performance of a given direction changes with its sampling ratio in Multilingual Neural Machine Translation (MNMT). By training over 200 multilingual models with various model sizes, data sizes, and language directions, we find it interesting that the performance of ce…

2023

Prompting and Evaluating Large Language Models for Proactive Dialogues: Clarification, Target-guided, and Non-collaboration

EMNLP 2023long findings

Conversational systems based on Large Language Models (LLMs), such as ChatGPT, show exceptional proficiency in context understanding and response generation. However, they still possess limitations, such as failing to ask clarifying questions to ambiguous queries or refuse users' unreasonable reques…

Cited by 0SourcecodeScholar
2023

RECAL: Sample-Relation Guided Confidence Calibration over Tabular Data

EMNLP 2023long findings

Tabular-format data is widely adopted in various real-world applications. Various machine learning models have achieved remarkable success in both industrial applications and data-science competitions. Despite these successes, most current machine learning methods for tabular data lack accurate conf…

Cited by 0SourceScholar
2023

SAD: Semi-Supervised Anomaly Detection on Dynamic Graphs

IJCAI 2023poster

Anomaly detection aims to distinguish abnormal instances that deviate significantly from the majority of benign ones. As instances that appear in the real world are naturally connected and can be represented with graphs, graph neural networks become increasingly popular in tackling the anomaly detec…

2023

Scaling Up Dynamic Graph Representation Learning via Spiking Neural Networks

AAAI 2023technical

Recent years have seen a surge in research on dynamic graph representation learning, which aims to model temporal graphs that are dynamic and evolving constantly over time. However, current work typically models graph dynamics with recurrent neural networks (RNNs), making them suffer seriously from…

2023

Towards Hybrid-grained Feature Interaction Selection for Deep Sparse Network

NeurIPS 2023poster

Deep sparse networks are widely investigated as a neural network architecture for prediction tasks with high-dimensional sparse features, with which feature interaction selection is a critical component. While previous methods primarily focus on how to search feature interaction in a coarse-grained…

2023

Towards Robust Personalized Dialogue Generation via Order-Insensitive Representation Regularization

ACL 2023findings

Generating persona consistent dialogue response is important for developing an intelligent conversational agent. Recent works typically fine-tune large-scale pre-trained models on this task by concatenating persona texts and dialogue history as a single input sequence to generate the target response…

2022

ATP: AMRize Then Parse! Enhancing AMR Parsing with PseudoAMRs

NAACL 2022findings

As Abstract Meaning Representation (AMR) implicitly involves compound semantic annotations, we hypothesize auxiliary tasks which are semantically or formally related can better enhance AMR parsing. We find that 1) Semantic role labeling (SRL) and dependency parsing (DP), would bring more performance…

2022

CAR: Class-Aware Regularizations for Semantic Segmentation

ECCV 2022poster

"Recent segmentation methods, such as OCR and CPNet, utilizing “class level” information in addition to pixel features, have achieved notable success for boosting the accuracy of existing network modules. However, the extracted class-level information was simply concatenated to pixel features, witho…

2022

Evidential Neighborhood Contrastive Learning for Universal Domain Adaptation

AAAI 2022technical

Universal domain adaptation (UniDA) aims to transfer the knowledge learned from a labeled source domain to an unlabeled target domain without any constraints on the label sets. However, domain shift and category shift make UniDA extremely challenging, mainly attributed to the requirement of identify…

Cited by 47SourcePDFScholar
2022

Focus on the Target’s Vocabulary: Masked Label Smoothing for Machine Translation

ACL 2022short

Label smoothing and vocabulary sharing are two widely used techniques in neural machine translation models. However, we argue that simply applying both techniques can be conflicting and even leads to sub-optimal performance. When allocating smoothed probability, original label smoothing treats the s…

2022

Geometric Anchor Correspondence Mining With Uncertainty Modeling for Universal Domain Adaptation

CVPR 2022oral

Universal domain adaptation (UniDA) aims to transfer the knowledge learned from a label-rich source domain to a label-scarce target domain without any constraints on the label space. However, domain shift and category shift make UniDA extremely challenging, which mainly lies in how to recognize both…

Cited by 54PDFScholar
2022

Hierarchical Curriculum Learning for AMR Parsing

ACL 2022short

Abstract Meaning Representation (AMR) parsing aims to translate sentences to semantic representation with a hierarchical structure, and is recently empowered by pretrained sequence-to-sequence models. However, there exists a gap between their flat training objective (i.e., equally treats all output…

2022

Large-batch Optimization for Dense Visual Predictions: Training Faster R-CNN in 4.2 Minutes

NeurIPS 2022accept

Training a large-scale deep neural network in a large-scale dataset is challenging and time-consuming. The recent breakthrough of large-batch optimization is a promising way to tackle this challenge. However, although the current advanced algorithms such as LARS and LAMB succeed in classification mo…

2022

Mutual Nearest Neighbor Contrast and Hybrid Prototype Self-Training for Universal Domain Adaptation

AAAI 2022technical

Universal domain adaptation (UniDA) aims to transfer knowledge learned from a labeled source domain to an unlabeled target domain under domain shift and category shift. Without prior category overlap information, it is challenging to simultaneously align the common categories between two domains and…

Cited by 24SourcePDFScholar
2022

Neighborhood Consensus Contrastive Learning for Backward-Compatible Representation

AAAI 2022technical

In object re-identification (ReID), the development of deep learning techniques often involves model updates and deployment. It is unbearable to re-embedding and re-index with the system suspended when deploying new models. Therefore, backward-compatible representation is proposed to enable ``new''…

Cited by 8SourcePDFScholar
2022

OST: Improving Generalization of DeepFake Detection via One-Shot Test-Time Training

NeurIPS 2022accept

State-of-the-art deepfake detectors perform well in identifying forgeries when they are evaluated on a test set similar to the training set, but struggle to maintain good performance when the test forgeries exhibit different characteristics from the training images e.g., forgeries are created by uns…

Cited by 75SourcePDFScholar
2022

Perceiving and Modeling Density for Image Dehazing

ECCV 2022poster

"In the real world, the degradation of images taken under haze can be quite complex, where the spatial distribution of haze varies from image to image. Recent methods adopt deep neural networks to recover clean scenes from hazy images directly. However, due to the generic design of network architect…

2022

Self-Supervised Learning of Adversarial Example: Towards Good Generalizations for Deepfake Detection

CVPR 2022oral

Recent studies in deepfake detection have yielded promising results when the training and testing face forgeries are from the same dataset. However, the problem remains challenging when one tries to generalize the detector to forgeries created by unseen methods in the training dataset. This work add…

Cited by 271PDFcodeScholar
2022

Spiking Graph Convolutional Networks

IJCAI 2022poster

Graph Convolutional Networks (GCNs) achieve an impressive performance due to the remarkable representation ability in learning the graph information. However, GCNs, when implemented on a deep network, require expensive computation power, making them difficult to be deployed on battery-powered device…

2021

Learning a Non-Blind Deblurring Network for Night Blurry Images

CVPR 2021poster

Deblurring night blurry images is difficult, because the common-used blur model based on the linear convolution operation does not hold in this situation due to the influence of saturated pixels. In this paper, we propose a non-blind deblurring network (NBDN) to restore night blurry images. To mitig…

Cited by 36PDFScholar
2021

Reinforcement Learning with a Disentangled Universal Value Function for Item Recommendation

AAAI 2021technical

In recent years, there are great interests as well as many challenges in applying reinforcement learning (RL) to recommendation systems (RS). In this paper, we summarize three key practical challenges of large-scale RL-based recommender systems: massive state and action spaces, high-variance environ…

2021

Secure Deep Graph Generation with Link Differential Privacy

IJCAI 2021poster

Many data mining and analytical tasks rely on the abstraction of networks (graphs) to summarize relational structures among individuals (nodes). Since relational data are often sensitive, we aim to seek effective approaches to generate utility-preserved yet privacy-protected structured data. In thi…

Cited by 47SourcePDFScholar
2021

Understanding Structural Vulnerability in Graph Convolutional Networks

IJCAI 2021poster

Recent studies have shown that Graph Convolutional Networks (GCNs) are vulnerable to adversarial attacks on the graph structure. Although multiple works have been proposed to improve their robustness against such structural adversarial attacks, the reasons for the success of the attacks remain uncle…

2020

OID: Outlier Identifying and Discarding in Blind Image Deblurring

ECCV 2020poster

Blind deblurring methods are sensitive to outliers, such as saturated pixels and non-Gaussian noise. Even a small amount of outliers can dramatically degrade the quality of the estimated blur kernel, because the outliers are not conforming to the linear formation of the blurring process. Prior arts…

Cited by 33SourcePDFScholar
2019

A Region Based Attention Method for Weakly Supervised Sound Event Detection and Classification

ICASSP 2019accepted

Recently, an attention based convolutional recurrent neural network (CRNN) with learnable gated linear units (GLUs) has achieved state-of-the-art performance for audio tagging (AT) and sound event detection (SED) tasks in the Detection and Classification of Acoustic Scenes and Events (DCASE) challen…

Cited by 0SourceScholar
2019

Dnn-based Spectral Enhancement for Neural Waveform Generators with Low-bit Quantization

ICASSP 2019accepted

This paper presents a spectral enhancement method to improve the quality of speech reconstructed by neural waveform generators with low-bit quantization. At training stage, this method builds a multiple-target DNN, which predicts log amplitude spectra of natural high-bit waveforms together with the…

Cited by 0SourceScholar
2018

Learning Semantic Representations for Unsupervised Domain Adaptation

ICML 2018oral

It is important to transfer the knowledge from label-rich source domain to unlabeled target domain due to the expensive cost of manual labeling efforts. Prior domain adaptation methods address this problem through aligning the global distribution statistics between source domain and target domain, b…

2017

A joint learning based Face Super Resolution approach via contextual topological structure

ICASSP 2017accepted

Face Super Resolution(FSR) is to infer High Resolution(HR) facial images from given Low Resolution(LR) ones with the assistance of LR and HR training pairs. Among existing methods, local patch based methods are superior in visual and objective quality than global based methods. These local patch bas…

Cited by 0SourceScholar
2017

Towards expressive instrument synthesis through smooth frame-by-frame reconstruction: From string to woodwind

ICASSP 2017accepted

We consider the task of mapping the performance of a musical excerpt on one instrument to another. Our focus is on excitation-continuous instruments, where pitch, amplitude, spectrum, and time envelope are controlled continuously by the player. The synthesized instrument should follow the target ins…

Cited by 0SourceScholar