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Ang Li

110 accepted papers

2026

Are EEG Foundation Models Worth It? Comparative Evaluation with Traditional Decoders in Diverse BCI Tasks

ICLR 2026poster

Foundation models have recently emerged as a promising approach for learning generalizable EEG representations for brain–computer interfaces (BCIs). Yet, their true advantages over traditional methods—particularly classical non-neural approaches—remain unclear. In this work, we present a comprehensi…

Cited by 0SourcecodeScholar
2026

Capacity-Aware Inference: Mitigating the Straggler Effect in Mixture of Experts

ICLR 2026poster

The Mixture of Experts (MoE) is an effective architecture for scaling large language models by leveraging sparse expert activation to balance performance and efficiency. However, under expert parallelism, MoE suffers from inference inefficiencies due to imbalanced token-to-expert assignment, where u…

Cited by 0SourcecodeScholar
2026

CoordAR: One-Reference 6D Pose Estimation of Novel Objects via Autoregressive Coordinate Map Generation

AAAI 2026technical

Object 6D pose estimation, a crucial task for robotics and augmented reality applications, becomes particularly challenging when dealing with novel objects whose 3D models are not readily available. To reduce dependency on 3D models, recent studies have explored one-reference-based pose estimation,

Cited by 0SourcePDFScholar
2026

HWC-Loco: A Hierarchical Whole-Body Control Approach to Robust Humanoid Locomotion

ICLR 2026poster

Humanoid robots, capable of assuming human roles in various workplaces, have become essential to the advancement of embodied intelligence. However, as robots with complex physical structures, learning a control model that can operate robustly across diverse environments remains inherently challengin…

Cited by 0SourceScholar
2026

Local Linear Attention: An Optimal Interpolation of Linear and Softmax Attention For Test-Time Regression

ICLR 2026poster

Transformer architectures have achieved remarkable success in various domains. While efficient alternatives to Softmax Attention have been widely studied, the search for more expressive mechanisms grounded in theoretical insight—even at greater computational cost—has been relatively underexplored. I…

Cited by 3SourcecodeScholar
2026

MUSE: Multimodal Uncertainty-Based Self-Driven Evolution for Robust Physiological-Signal–Based Driver Fatigue Detection

AAAI 2026technical

Precise detection of driver mental fatigue is critical for reducing traffic accidents and enhancing road safety. Compared with vision-based detection—which is susceptible to illumination and occlusion—multimodal physiological‑signal-based approaches integrate complementary information from diverse

Cited by 0SourcePDFScholar
2026

Mining Tensor/Neuron-Level Sparsity to Maximize Mixture-of-Experts Potential in Post-Training and Inference

ICML 2026poster

Mixture of Experts (MoE) has emerged as a mainstream architecture for Large Language Models (LLMs), balancing computational efficiency with model scalability. While prior work has explored increasing tensor-level sparsity via finer-grained expert configurations during pre-training, we identify signi…

Cited by 0SourceScholar
2026

Position: Invisible Tokens, Visible Bills: The Urgent Need to Audit Hidden Operations in Opaque LLM Services

ICML 2026poster

Modern large language model (LLM) services increasingly rely on complex, often abstract operations, such as multi-step reasoning and multi-agent collaboration, to generate high-quality outputs. While users are billed based on token consumption and API usage, these internal steps are typically not vi…

Cited by 0SourceScholar
2026

Retrospective Feature Estimation for Continual Learning

ICML 2026poster

The intrinsic capability to continuously learn a changing data stream is a desideratum of deep neural networks (DNNs). However, current DNNs suffer from catastrophic forgetting, which interferes with remembering past knowledge. To mitigate this issue, existing Continual Learning (CL) approaches ofte…

Cited by 0SourcecodeScholar
2026

Solving Time-Dependent Differential Equations with Physical Dynamical Systems

ICML 2026oral

Time-Dependent Differential Equations (TDDEs) model dynamical processes across science and engineering, but time-critical applications require solvers delivering high-fidelity trajectories under stringent latency constraints. Most existing TDDE solvers are limited by time discretization, forcing a l…

Cited by 0SourceScholar
2026

Tactic: Adaptive Sparse Attention with Clustering and Distribution Fitting for Long-Context LLMs

ICLR 2026poster

Long-context models are essential for many applications but face inefficiencies in loading large KV caches during decoding. Prior methods enforce fixed token budgets for sparse attention, assuming a set number of tokens can approximate full attention. However, these methods overlook variations in th…

Cited by 0SourceScholar
2026

Think Then Rewrite: Reasoning Enhanced Query Rewriting for Domain Specific Retrieval

AAAI 2026technical

Query rewriting is a crucial task for improving retrieval, especially in professional domains such as law and medicine, where user queries are often underspecified and ambiguous. While large language models (LLMs) offer strong understanding and generation capabilities, existing LLM-based approaches

Cited by 0SourcePDFScholar
2026

UniCompress: Token Compression for Unified Vision-Language Understanding and Generation

CVPR 2026

Unified models aim to support both understanding and generation by encoding images into discrete tokens and processing them alongside text within a single autoregressive framework. This unified design offers architectural simplicity and cross-modal synergy, which facilitates shared parameterization,

Cited by 0SourceScholar
2026

Zebra-CoT: A Dataset for Interleaved Vision-Language Reasoning

ICLR 2026poster

Humans often rely on visual aids, such as diagrams or sketches, when tackling complex problems. Teaching multimodal models to adopt similar strategies, a process known as Visual Chain of Thought (visual CoT), is much more difficult. The main challenges are: (1) weak performance of off-the-shelf visu…

Cited by 0SourcecodeScholar
2026

Zeros can be Informative: Masked Binary U-Net for Image Segmentation on Tensor Cores

ICLR 2026poster

Real-time image segmentation is a key enabler for AR/VR, robotics, drones, and autonomous systems, where tight accuracy, latency, and energy budgets must be met on resource‑constrained edge devices. While U‑Net offers a favorable balance of accuracy and efficiency compared to large transformer‑based…

Cited by 0SourcecodeScholar
2025

$\texttt{G1}$: Teaching LLMs to Reason on Graphs with Reinforcement Learning

NeurIPS 2025poster

Although Large Language Models (LLMs) have demonstrated remarkable progress, their proficiency in graph-related tasks remains notably limited, hindering the development of truly general-purpose models. Previous attempts, including pretraining graph foundation models or employing supervised fine-tuni…

Cited by 0SourcecodeScholar
2025

Agent S: An Open Agentic Framework that Uses Computers Like a Human

ICLR 2025poster

We present Agent S, an open agentic framework that enables autonomous interaction with computers through Graphical User Interface (GUI), aimed at transforming human-computer interaction by automating complex, multi-step tasks. Agent S addresses three key challenges in automating computer tasks: acqu…

2025

An Expressive and Self-Adaptive Dynamical System for Efficient Function Learning

ICML 2025poster

Function learning forms the foundation of numerous scientific and engineering tasks. While modern machine learning (ML) methods model complex functions effectively, their escalating complexity and computational demands pose challenges to efficient deployment. In contrast, natural dynamical systems e…

Cited by 0SourcePDFScholar
2025

Architectural and Inferential Inductive Biases for Exchangeable Sequence Modeling

NeurIPS 2025poster

Autoregressive models have emerged as a powerful framework for modeling exchangeable sequences---i.i.d. observations when conditioned on some latent factor---enabling direct modeling of uncertainty from missing data (rather than a latent). Motivated by the critical role posterior inference plays as…

Cited by 0SourcecodeScholar
2025

Automatic Numbering and Pathological Recognition of Pediatric Teeth Using CNN and Attention Mechanisms

ICASSP 2025accepted

Preliminary progress has been made in using deep learning networks for tooth segmentation and numbering, as well as pathological identification in dental panoramic images. However, The publicly available datasets specifically for children’s teeth are very scarce. To address this issue, this paper pr…

Cited by 0SourceScholar
2025

Bag of Tricks for Sparse Mixture-of-Experts: A Benchmark Across Reasoning, Efficiency, and Safety

EMNLP 2025

Mixture-of-Experts (MoE) has emerged as a promising approach for scaling large language models efficiently. However, how to design a desired MoE architecture given performance, efficiency, or safety goals remains absent. Existing benchmarks often focus on isolated aspects (e.g., reasoning, efficienc

Cited by 0SourcePDFScholar
2025

CoEvo: Coevolution of LLM and Retrieval Model for Domain-Specific Information Retrieval

EMNLP 2025

Information retrieval in specialized domains (e.g., legal and medical) faces challenges in aligning user queries, often expressed in colloquial language, with highly structured, terminology-rich documents. This discrepancy creates a distribution gap in the text representation. Recent methods aim to

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

Embracing Imperfection: Simulating Students with Diverse Cognitive Levels Using LLM-based Agents

ACL 2025long

Large language models (LLMs) are revolutionizing education, with LLM-based agents playing a key role in simulating student behavior. A major challenge in student simulation is modeling the diverse learning patterns of students at various cognitive levels. However, current LLMs, typically trained as…

Cited by 0SourcePDFScholar
2025

FAIR Universe HiggsML Uncertainty Dataset and Competition

NeurIPS 2025poster

The FAIR Universe – HiggsML Uncertainty Challenge focused on measuring the physical properties of elementary particles with imperfect simulators. Participants were required to compute and report confidence intervals for a parameter of interest regarding the Higgs boson while accounting for various s…

Cited by 0SourcecodeScholar
2025

Legal Judgment Prediction based on Knowledge-enhanced Multi-Task and Multi-Label Text Classification

NAACL 2025long

Legal judgment prediction (LJP) is an essential task for legal AI, aiming at predicting judgments based on the facts of a case. Legal judgments can involve multiple law articles and charges. Although recent methods in LJP have made notable progress, most are constrained to single-task settings (e.g.…

2025

Mitigating Biases of Large Language Models in Stance Detection with Counterfactual Augmented Calibration

NAACL 2025long

Stance detection is critical for understanding the underlying position or attitude expressed toward a topic. Large language models (LLMs) have demonstrated significant advancements across various natural language processing tasks including stance detection, however, their performance in stance detec…

2025

On Scaling Up 3D Gaussian Splatting Training

ICLR 2025oral

3D Gaussian Splatting (3DGS) is increasingly popular for 3D reconstruction due to its superior visual quality and rendering speed. However, 3DGS training currently occurs on a single GPU, limiting its ability to handle high-resolution and large-scale 3D reconstruction tasks due to memory constraints…

2025

PersonalLLM: Tailoring LLMs to Individual Preferences

ICLR 2025poster

As LLMs become capable of complex tasks, there is growing potential for personalized interactions tailored to the subtle and idiosyncratic preferences of the user. We present a public benchmark, PersonalLLM, focusing on adapting LLMs to provide maximal benefits for a particular user. Departing from…

2025

Reinforcement Active Client Selection for Federated Heterogeneous Graph Learning

AAAI 2025technical

Carefully selecting clients to participate in aggregation can assist the global model in achieving better performance. However, existing research on federated heterogeneous graph learning (FHGL) has shown limited attention to the client selection (CS) problem. Current CS algorithms face challenges i…

Cited by 0SourcePDFScholar
2025

Speculate, then Collaborate: Fusing Knowledge of Language Models during Decoding

ICML 2025poster

Large Language Models (LLMs) often excel in specific domains but fall short in others due to the limitations of their training. Thus, enabling LLMs to solve problems collaboratively by integrating their complementary knowledge promises to improve their performance across domains. To realize this pot…

2025

SymRTLO: Enhancing RTL Code Optimization with LLMs and Neuron-Inspired Symbolic Reasoning

NeurIPS 2025poster

Optimizing Register Transfer Level (RTL) code is crucial for improving the efficiency and performance of digital circuits in the early stages of synthesis. Manual rewriting, guided by synthesis feedback, can yield high-quality results but is time-consuming and error-prone. Most existing compiler-bas…

Cited by 0SourceScholar
2025

Towards counterfactual fairness through auxiliary variables

ICLR 2025poster

The challenge of balancing fairness and predictive accuracy in machine learning models, especially when sensitive attributes such as race, gender, or age are considered, has motivated substantial research in recent years. Counterfactual fairness ensures that predictions remain consistent across coun…

2025

UniLR: Unleashing the Power of LLMs on Multiple Legal Tasks with a Unified Legal Retriever

ACL 2025long

Despite the impressive capabilities of LLMs, they often generate content with factual inaccuracies in LegalAI, which may lead to serious legal consequences. Retrieval-Augmented Generation (RAG), a promising approach, can conveniently integrate specialized knowledge into LLMs. In practice, there are…

2024

$\texttt{Model-GLUE}$: Democratized LLM Scaling for A Large Model Zoo in the Wild

NeurIPS 2024poster

As Large Language Models (LLMs) excel across tasks and specialized domains, scaling LLMs based on existing models has gained significant attention, which is challenged by potential performance drop when combining disparate models. Various techniques have been proposed to aggregate pre-trained LLMs,…

2024

A Challenge Dataset and Effective Models for Conversational Stance Detection

COLING 2024main

Previous stance detection studies typically concentrate on evaluating stances within individual instances, thereby exhibiting limitations in effectively modeling multi-party discussions concerning the same specific topic, as naturally transpire in authentic social media interactions. This constraint…

2024

Are Deep Neural Networks Robust to Named Entities? An Adversarial Attack and Defense Perspective

ICASSP 2024accepted

In light of the widespread utilization of deep neural networks in various natural language tasks, adversarial attacks targeting these models have emerged as a significant concern. Through the introduction of subtle perturbations via word substitution, word-level adversarial attacks have demonstrated…

Cited by 0SourceScholar
2024

Embodied Intelligence: Bionic Robot Controller Integrating Environment Perception, Autonomous Planning, and Motion Control

RA-L 2024

This letter proposes a bionic robot controller equipped with intelligent perception and autonomous planning modules to address the manufacturing industry's requirements for small-batch, customized, and autonomous task. Three crucial components: motion control module, vision perception module, and au

Cited by 18SourceScholar
2024

Enhancing Court View Generation with Knowledge Injection and Guidance

COLING 2024main

Court View Generation (CVG) is a challenging task in the field of Legal Artificial Intelligence (LegalAI), which aims to generate court views based on the plaintiff claims and the fact descriptions. While Pretrained Language Models (PLMs) have showcased their prowess in natural language generation,…

2024

Enhancing One-Shot Federated Learning Through Data and Ensemble Co-Boosting

ICLR 2024poster

One-shot Federated Learning (OFL) has become a promising learning paradigm, enabling the training of a global server model via a single communication round. In OFL, the server model is aggregated by distilling knowledge from all client models (the ensemble), which are also responsible for synthesizi…

2024

Extending Power of Nature from Binary to Real-Valued Graph Learning in Real World

ICLR 2024poster

Nature performs complex computations constantly at clearly lower cost and higher performance than digital computers. It is crucial to understand how to harness the unique computational power of nature in Machine Learning (ML). In the past decade, besides the development of Neural Networks (NNs), the…

Cited by 9SourcePDFScholar
2024

FLoRA: Federated Fine-Tuning Large Language Models with Heterogeneous Low-Rank Adaptations

NeurIPS 2024poster

The rapid development of Large Language Models (LLMs) has been pivotal in advancing AI, with pre-trained LLMs being adaptable to diverse downstream tasks through fine-tuning. Federated learning (FL) further enhances fine-tuning in a privacy-aware manner by utilizing clients' local data through in-si…

2024

FedHyper: A Universal and Robust Learning Rate Scheduler for Federated Learning with Hypergradient Descent

ICLR 2024poster

The theoretical landscape of federated learning (FL) undergoes rapid evolution, but its practical application encounters a series of intricate challenges, and hyperparameter optimization is one of these critical challenges. Amongst the diverse adjustments in hyperparameters, the adaptation of the le…

Cited by 5SourcePDFScholar
2024

From Graph to Word Bag: Introducing Domain Knowledge to Confusing Charge Prediction

COLING 2024main

Confusing charge prediction is a challenging task in legal AI, which involves predicting confusing charges based on fact descriptions. While existing charge prediction methods have shown impressive performance, they face significant challenges when dealing with confusing charges, such as Snatch and…

2024

Ground-Fusion: A Low-cost Ground SLAM System Robust to Corner Cases

ICRA 2024poster

We introduce Ground-Fusion, a low-cost sensor fusion simultaneous localization and mapping (SLAM) system for ground vehicles. Our system features efficient initialization, effective sensor anomaly detection and handling, real-time dense color mapping, and robust localization in diverse environments.…

Cited by 11SourcecodeScholar
2024

MAPSeg: Unified Unsupervised Domain Adaptation for Heterogeneous Medical Image Segmentation Based on 3D Masked Autoencoding and Pseudo-Labeling

CVPR 2024poster

Robust segmentation is critical for deriving quantitative measures from large-scale multi-center and longitudinal medical scans. Manually annotating medical scans however is expensive and labor-intensive and may not always be available in every domain. Unsupervised domain adaptation (UDA) is a well-…

2024

Mobile-Bench: An Evaluation Benchmark for LLM-based Mobile Agents

ACL 2024long

With the remarkable advancements of large language models (LLMs), LLM-based agents have become a research hotspot in human-computer interaction.However, there is a scarcity of benchmarks available for LLM-based mobile agents.Benchmarking these agents generally faces three main challenges:(1) The ine…

2024

MobileVLM: A Vision-Language Model for Better Intra- and Inter-UI Understanding

EMNLP 2024finding

Recently, mobile AI agents based on VLMs have been gaining increasing attention. These works typically utilize VLM as a foundation, fine-tuning it with instruction-based mobile datasets. However, these VLMs are typically pre-trained on general-domain data, which often results in a lack of fundamenta…

2024

Multi-modal Stance Detection: New Datasets and Model

ACL 2024findings

Stance detection is a challenging task that aims to identify public opinion from social media platforms with respect to specific targets. Previous work on stance detection largely focused on pure texts. In this paper, we study multi-modal stance detection for tweets consisting of texts and images, w…

2024

PID: Prompt-Independent Data Protection Against Latent Diffusion Models

ICML 2024poster

The few-shot fine-tuning of Latent Diffusion Models (LDMs) has enabled them to grasp new concepts from a limited number of images. However, given the vast amount of personal images accessible online, this capability raises critical concerns about civil privacy. While several previous defense methods…

2024

QGym: Scalable Simulation and Benchmarking of Queuing Network Controllers

NeurIPS 2024poster

Queuing network control allows allocation of scarce resources to manage congestion, a fundamental problem in manufacturing, communications, and healthcare. Compared to standard RL problems, queueing problems are distinguished by unique challenges: i) a system operating in continuous time, ii) high…

2024

QUAPPROX: A Framework for Benchmarking the Approximability of Variational Quantum Circuit

ICASSP 2024accepted

Most of the existing quantum neural network models, such as variational quantum circuits (VQCs), are limited in their ability to explore the non-linear relationships in input data. This gradually becomes the main obstacle for it to tackle realistic applications, such as natural language processing,…

Cited by 0SourceScholar
2024

SHED: Shapley-Based Automated Dataset Refinement for Instruction Fine-Tuning

NeurIPS 2024poster

The pre-trained Large Language Models (LLMs) can be adapted for many downstream tasks and tailored to align with human preferences through fine-tuning. Recent studies have discovered that LLMs can achieve desirable performance with only a small amount of high-quality data, suggesting that a large po…

2024

SpaRP: Fast 3D Object Reconstruction and Pose Estimation from Sparse Views

ECCV 2024poster

"Open-world 3D generation has recently attracted considerable attention. While many single-image-to-3D methods have yielded visually appealing outcomes, they often lack sufficient controllability and tend to produce hallucinated regions that may not align with users’ expectations. In this paper, we…

2024

Stereo-LiDAR Depth Estimation with Deformable Propagation and Learned Disparity-Depth Conversion

ICRA 2024poster

Accurate and dense depth estimation with stereo cameras and LiDAR is an important task for automatic driving and robotic perception. While sparse hints from LiDAR points have improved cost aggregation in stereo matching, their effectiveness is limited by the low density and non-uniform distribution.…

Cited by 4SourcecodeScholar
2024

TERD: A Unified Framework for Safeguarding Diffusion Models Against Backdoors

ICML 2024poster

Diffusion models have achieved notable success in image generation, but they remain highly vulnerable to backdoor attacks, which compromise their integrity by producing specific undesirable outputs when presented with a pre-defined trigger. In this paper, we investigate how to protect diffusion mode…

2024

Unleashing the Power of LLMs in Court View Generation by Stimulating Internal Knowledge and Incorporating External Knowledge

NAACL 2024findings

Court View Generation (CVG) plays a vital role in the realm of legal artificial intelligence, which aims to support judges in crafting legal judgment documents. The court view consists of three essential judgment parts: the charge-related, law article-related, and prison term-related parts, each req…

Cited by 4SourcePDFScholar
2023

AutoReP: Automatic ReLU Replacement for Fast Private Network Inference

ICCV 2023poster

The growth of the Machine-Learning-As-A-Service (MLaaS) market has highlighted clients' data privacy and security issues. Private inference (PI) techniques using cryptographic primitives offer a solution but often have high computation and communication costs, particularly with non-linear operators…

Cited by 41PDFcodeScholar
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

FedNAR: Federated Optimization with Normalized Annealing Regularization

NeurIPS 2023poster

Weight decay is a standard technique to improve generalization performance in modern deep neural network optimization, and is also widely adopted in federated learning (FL) to prevent overfitting in local clients. In this paper, we first explore the choices of weight decay and identify that weight d…

2023

Ising-Traffic: Using Ising Machine Learning to Predict Traffic Congestion under Uncertainty

AAAI 2023technical

This paper addresses the challenges in accurate and real-time traffic congestion prediction under uncertainty by proposing Ising-Traffic, a dual-model Ising-based traffic prediction framework that delivers higher accuracy and lower latency than SOTA solutions. While traditional solutions face the di…

Cited by 39SourcePDFScholar
2023

Open-VCLIP: Transforming CLIP to an Open-vocabulary Video Model via Interpolated Weight Optimization

ICML 2023poster

Contrastive Language-Image Pretraining (CLIP) has demonstrated impressive zero-shot learning abilities for image understanding, yet limited effort has been made to investigate CLIP for zero-shot video recognition. We introduce Open-VCLIP, a simple yet effective approach that transforms CLIP into a s…

2023

PolicyCleanse: Backdoor Detection and Mitigation for Competitive Reinforcement Learning

ICCV 2023poster

While real-world applications of reinforcement learning (RL) are becoming popular, the security and robustness of RL systems are worthy of more attention and exploration. In particular, recent works have revealed that, in a multi-agent RL environment, backdoor trigger actions can be injected into a…

Cited by 20PDFScholar
2023

Stance Detection on Social Media with Background Knowledge

EMNLP 2023long main

Identifying users' stances regarding specific targets/topics is a significant route to learning public opinion from social media platforms. Most existing studies of stance detection strive to learn stance information about specific targets from the context, in order to determine the user's stance on…

Cited by 0SourceScholar
2022

AEVA: Black-box Backdoor Detection Using Adversarial Extreme Value Analysis

ICLR 2022poster

Deep neural networks (DNNs) are proved to be vulnerable against backdoor attacks. A backdoor could be embedded in the target DNNs through injecting a backdoor trigger into the training examples, which can cause the target DNNs misclassify an input attached with the backdoor trigger. Recent backdoor…

2022

Attribute-Conditioned Face Swapping Network for Low-Resolution Images

ICASSP 2022accepted

Deep learning based face swapping technologies have opened new frontiers for entertainment industries while pose novel threats to identity security. Applying face swapping to real-world products, as well as defending against its misuse, rely on the capacity to generate high quality face swapped imag…

Cited by 0SourceScholar
2022

Information-theoretic Online Memory Selection for Continual Learning

ICLR 2022poster

A challenging problem in task-free continual learning is the online selection of a representative replay memory from data streams. In this work, we investigate the online memory selection problem from an information-theoretic perspective. To gather the most information, we propose the \textit{surpri…

Cited by 57SourcePDFScholar
2022

M2DGR: A Multi-Sensor and Multi-Scenario SLAM Dataset for Ground Robots

RA-L 2022

We introduce M2DGR: a novel large-scale dataset collected by a ground robot with a full sensor-suite including six fish-eye and one sky-pointing RGB cameras, an infrared camera, an event camera, a Visual-Inertial Sensor (VI-sensor), an inertial measurement unit (IMU), a LiDAR, a consumer-grade Globa

Cited by 257SourcecodeScholar
2022

Neural Mean Discrepancy for Efficient Out-of-Distribution Detection

CVPR 2022poster

Various approaches have been proposed for out-of-distribution (OOD) detection by augmenting models, input examples, training set, and optimization objectives. Deviating from existing work, we have a simple hypothesis that standard off-the-shelf models may already contain sufficient information about…

Cited by 67PDFScholar
2022

SimIPU: Simple 2D Image and 3D Point Cloud Unsupervised Pre-training for Spatial-Aware Visual Representations

AAAI 2022technical

Pre-training has become a standard paradigm in many computer vision tasks. However, most of the methods are generally designed on the RGB image domain. Due to the discrepancy between the two-dimensional image plane and the three-dimensional space, such pre-trained models fail to perceive spatial inf…

2022

Unsupervised Domain Adaptation for Monocular 3D Object Detection via Self-Training

ECCV 2022poster

"Monocular 3D object detection (Mono3D) has achieved unprecedented success with the advent of deep learning techniques and emerging large-scale autonomous driving datasets. However, drastic performance degradation remains an unwell-studied challenge for practical cross-domain deployment as the lack…

2021

FL-WBC: Enhancing Robustness against Model Poisoning Attacks in Federated Learning from a Client Perspective

NeurIPS 2021poster

Federated learning (FL) is a popular distributed learning framework that trains a global model through iterative communications between a central server and edge devices. Recent works have demonstrated that FL is vulnerable to model poisoning attacks. Several server-based defense approaches (e.g. ro…

2021

Noise Doesn't Lie: Towards Universal Detection of Deep Inpainting

IJCAI 2021poster

Deep image inpainting aims to restore damaged or missing regions in an image with realistic contents. While having a wide range of applications such as object removal and image recovery, deep inpainting techniques also have the risk of being manipulated for image forgery. A promising countermeasure…

Cited by 26SourcePDFScholar
2021

Robust Initialization of Multi-camera SLAM with Limited View Overlaps and Inaccurate Extrinsic Calibration

IROS 2021poster

This paper proposes a robust initialization method for a multi-camera visual SLAM system where cameras have only a limited common field of views and inaccurate extrinsic calibration. The limited common field of views leads to only a few common features that can be matched between cameras. Inaccurate…

Cited by 8SourceScholar
2021

Soteria: Provable Defense Against Privacy Leakage in Federated Learning From Representation Perspective

CVPR 2021poster

Federated learning (FL) is a popular distributed learning framework that can reduce privacy risks by not explicitly sharing private data. However, recent works have demonstrated that sharing model updates makes FL vulnerable to inference attack. In this work, we show our key observation that the dat…

Cited by 204PDFcodeScholar
2020

Learning to Incentivize Other Learning Agents

NeurIPS 2020poster

The challenge of developing powerful and general Reinforcement Learning (RL) agents has received increasing attention in recent years. Much of this effort has focused on the single-agent setting, in which an agent maximizes a predefined extrinsic reward function. However, a long-term question inevit…

2020

Near-Optimal Interference Exploitation 1-Bit Massive MIMO Precoding Via Partial Branch-and-Bound

ICASSP 2020accepted

In this paper, we focus on 1-bit precoding for large-scale antenna systems in the downlink based on the concept of constructive interference (CI). By formulating the optimization problem that aims to maximize the CI effect subject to the 1-bit constraint on the transmit signals, we mathematically pr…

Cited by 0SourceScholar
2020

PhysGAN: Generating Physical-World-Resilient Adversarial Examples for Autonomous Driving

CVPR 2020poster

Although Deep neural networks (DNNs) are being pervasively used in vision-based autonomous driving systems, they are found vulnerable to adversarial attacks where small-magnitude perturbations into the inputs during test time cause dramatic changes to the outputs. While most of the recent attack met…

Cited by 188PDFcodeScholar
2020

Prediction, Consistency, Curvature: Representation Learning for Locally-Linear Control

ICLR 2020poster

Many real-world sequential decision-making problems can be formulated as optimal control with high-dimensional observations and unknown dynamics. A promising approach is to embed the high-dimensional observations into a lower-dimensional latent representation space, estimate the latent dynamics mode…

Cited by 33SourceScholar
2020

Short-Term and Long-Term Context Aggregation Network for Video Inpainting

ECCV 2020poster

Video inpainting aims to restore missing regions of a video and has many applications such as video editing and object removal. However, existing methods either suffer from inaccurate short-term context aggregation or rarely explore long-term frame information. In this work, we present a novel conte…

Cited by 54SourcePDFScholar
2019

Interference Exploitation Precoding for Multi-level Modulations

ICASSP 2019accepted

In this paper, we investigate the interference exploitation precoding for multi-level modulations in the downlink multi-antenna systems. We mathematically derive the optimal precoding structures based on the Karush-Kuhn-Tucker (KKT) conditions. Furthermore, by formulating the dual problem, the preco…

Cited by 0SourceScholar
2019

Layout-Induced Video Representation for Recognizing Agent-in-Place Actions

ICCV 2019poster

We address scene layout modeling for recognizing agent-in-place actions, which are actions associated with agents who perform them and the places where they occur, in the context of outdoor home surveillance. We introduce a novel representation to model the geometry and topology of scene layouts so…

Cited by 4PDFScholar
2018

C-WSL: Count-guided Weakly Supervised Localization

ECCV 2018poster

We introduce count-guided weakly supervised localization (C-WSL), an approach that uses per-class object count as a new form of supervision to improve weakly supervised localization (WSL). C-WSL uses a simple count-based region selection algorithm to select high-quality regions, each of which covers…

Cited by 115SourcePDFScholar
2018

Dynamic Zoom-In Network for Fast Object Detection in Large Images

CVPR 2018poster

We introduce a generic framework that reduces the computational cost of object detection while retaining accuracy for scenarios where objects with varied sizes appear in high resolution images. Detection progresses in a coarse-to-fine manner, first on a down-sampled version of the image and then on…

Cited by 175SourcePDFScholar
2018

NISP: Pruning Networks Using Neuron Importance Score Propagation

CVPR 2018poster

To reduce the significant redundancy in deep Convolutional Neural Networks (CNNs), most existing methods prune neurons by only considering the statistics of an individual layer or two consecutive layers (e.g., prune one layer to minimize the reconstruction error of the next layer), ignoring the effe…

Cited by 1103SourcePDFScholar
2017

Generating Holistic 3D Scene Abstractions for Text-Based Image Retrieval

CVPR 2017poster

Spatial relationships between objects provide important information for text-based image retrieval. As users are more likely to describe a scene from a real world perspective, using 3D spatial relationships rather than 2D relationships that assume a particular viewing direction, one of the main chal…

Cited by 35PDFScholar
2017

Visual Relationship Detection With Internal and External Linguistic Knowledge Distillation

ICCV 2017poster

Understanding the visual relationship between two objects involves identifying the subject, the object, and a predicate relating them.We leverage the strong correlations between the predicate and the (subj,obj) pair (both semantically and spatially) to predict predicates conditioned on the subjects…

Cited by 326PDFScholar
2016

Abnormal event detection based on sparse reconstruction in crowded scenes

ICASSP 2016accepted

In this paper, we propose an algorithm of abnormal event detection in crowded scenes using sparse representation over the bases of normal motion feature descriptors. To construct an over-complete dictionary, we extract the histogram of maximal optical flow projection (HMOFP) feature from a set of no…

Cited by 0SourceScholar