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Pengfei Wang

40 accepted papers

2026

Fast Multi-view Consistent 3D Editing with Video Priors

AAAI 2026technical

Text-driven 3D editing enables user-friendly 3D object or scene editing with text instructions. Due to the lack of multi-view consistency priors, existing methods typically resort to employ 2D generation or editing models to process per-view individually, followed by iterative 2D-3D-2D updating. How

Cited by 0SourcePDFScholar
2026

One2Scene: Geometric Consistent Explorable 3D Scene Generation from a Single Image

ICLR 2026poster

Generating explorable 3D scenes from a single image is a highly challenging problem in 3D vision. Existing methods struggle to support free exploration, often producing severe geometric distortions and noisy artifacts when the viewpoint moves far from the original perspective. We introduce One2Scene…

Cited by 0SourcecodeScholar
2026

ProphetKV: User-Query-Driven Selective Recomputation for Efficient KV Cache Reuse in Retrieval-Augmented Generation

ICML 2026poster

The prefill stage of long-context Retrieval-Augmented Generation (RAG) is severely bottlenecked by computational overhead. To mitigate this, recent methods assemble pre-calculated KV caches of retrieved RAG documents (by a *user query*) and reprocess selected tokens to recover cross-attention betwee…

Cited by 0SourceScholar
2026

Regularized Offline Policy Optimization with Posterior Hybrid Bayesian Belief

ICML 2026poster

Offline reinforcement learning (RL) aims to optimize policies from pre-collected datasets. A bottleneck of this paradigm is managing epistemic uncertainty, which arises from limited data coverage (sample-level) and the ambiguity in identifying transition dynamics from finite data (model-level). To p…

Cited by 0SourceScholar
2026

scCluBench: Comprehensive Benchmarking of Clustering Algorithms for Single-Cell RNA Sequencing

AAAI 2026technical

Cell clustering is crucial for uncovering cellular heterogeneity in single-cell RNA sequencing (scRNA-seq) data by identifying cell types and marker genes. Despite its importance, existing benchmarks for scRNA-seq clustering remain fragmented, lacking standardized protocols and often omitting recent

Cited by 0SourcePDFScholar
2026

scLLM-DSC: LLM-Knowledge Enhanced Cross-Modal Deep Structural Clustering for Single-Cell RNA Sequencing

IJCAI 2026

Clustering is fundamental to scRNA-seq analysis, serving as a cornerstone for identifying cell populations and resolving tissue heterogeneity. However, existing methods focus on mining numerical statistical patterns, suffering from semantic agnosticism by neglecting the intrinsic biological function

Cited by 0Scholar
2025

CC-OCR: A Comprehensive and Challenging OCR Benchmark for Evaluating Large Multimodal Models in Literacy

ICCV 2025poster

Large Multimodal Models (LMMs) have demonstrated impressive performance in recognizing document images with natural language instructions. However, it remains unclear to what extent capabilities in literacy with rich structure and fine-grained visual challenges. The current landscape lacks a compreh…

Cited by 0SourcePDFScholar
2025

Diversity-oriented Data Augmentation with Large Language Models

ACL 2025long

Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP models. However, a significant challenge remains: Insufficient A…

2025

Dynamic and Adaptive Feature Generation with LLM

IJCAI 2025

The representation of feature space is a crucial environment where data points get vectorized and embedded for subsequent modeling. Thus, the efficacy of machine learning (ML) algorithms is closely related to the quality of feature engineering. As one of the most important techniques, feature genera

Cited by 0SourcePDFScholar
2025

EAR-SLAM: Environment-Aware Robust Localization System for Terrestrial-Aerial Bimodal Vehicles

ICRA 2025

Terrestrial-aerial bimodal vehicles (TABVs) can fly to avoid obstacles and move safely on the ground to save energy, offering enhanced adaptability and flexibility in various challenging environments. However, a robust localization approach becomes a bottleneck to stably applying the TABVs in real-w

Cited by 0SourceScholar
2025

HR${2}$-KILO: A High-Rate, Robust, Kinematic-Inertial-LiDAR Odometry for Humanoid Robots

RA-L 2025

In this letter, we present a high-rate and robust multi-sensor fusion framework for state estimation of humanoid robots, named HR<inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$^{2}$</tex-math></inline-formula>-KIL

Cited by 0SourceScholar
2025

Learning Dynamic Weight Adjustment for Spatial-Temporal Trajectory Planning in Crowd Navigation

ICRA 2025

Robot navigation in dense human crowds poses a significant challenge due to the complexity of human behavior in dynamic and obstacle-rich environments. In this work, we propose a dynamic weight adjustment scheme using a neural network to predict the optimal weights of objectives in an optimization-b

Cited by 8SourceScholar
2025

Motif-Oriented Representation Learning with Topology Refinement for Drug-Drug Interaction Prediction

AAAI 2025technical

Drug-Drug Interaction (DDI) prediction has attracted considerable attention in designing multi-drug combination strategies and avoiding adverse reactions. Notably, Artificial Intelligence (AI)-driven DDI prediction methods have emerged as a pivotal research paradigm. However, most AI-driven DDI pred…

Cited by 0SourcePDFScholar
2025

Rethinking Graph Contrastive Learning Through Relative Similarity Preservation

IJCAI 2025

Graph contrastive learning (GCL) has achieved remarkable success by following the computer vision paradigm of preserving absolute similarity between augmented views. However, this approach faces fundamental challenges in graphs due to their discrete, non-Euclidean nature -- view generation often bre

Cited by 0SourcePDFScholar
2025

State Feedback Enhanced Graph Differential Equations for Multivariate Time Series Forecasting

IJCAI 2025

Multivariate time series forecasting holds significant theoretical and practical importance in various fields, including web analytics and transportation. Recently, graph neural networks and graph differential equations have shown exceptional capabilities in modeling spatio-temporal features. Howeve

2025

scSiameseClu: A Siamese Clustering Framework for Interpreting Single-cell RNA Sequencing Data

IJCAI 2025

Single-cell RNA sequencing (scRNA-seq) reveals cell heterogeneity, with cell clustering playing a key role in identifying cell types and marker genes. Recent advances, especially graph neural networks (GNNs)-based methods, have significantly improved clustering performance. However, the analysis of

Cited by 0SourcePDFScholar
2024

A2G: Leveraging Intuitive Physics for Force-Efficient Robotic Grasping

RA-L 2024

In object manipulation, movements are inherently restricted by object geometry and dynamics. Humans use an intuitive understanding of physics while grasping objects, resulting in an efficient application of manipulation force. This involves a ‘common sense’ awareness of how objects behave in the phy

Cited by 1SourceScholar
2024

FedGCS: A Generative Framework for Efficient Client Selection in Federated Learning via Gradient-based Optimization

IJCAI 2024poster

Federated Learning faces significant challenges in statistical and system heterogeneity, along with high energy consumption, necessitating efficient client selection strategies. Traditional approaches, including heuristic and learning-based methods, fall short of addressing these complexities holist…

2024

Finite-Time Convergence Rates of Decentralized Local Markovian Stochastic Approximation

IJCAI 2024poster

Markovian stochastic approximation has recently aroused a great deal of interest in many fields; however, it is not well understood in decentralized settings. Decentralized Markovian stochastic approximation is far more challenging than its single-agent counterpart due to the complex coupling struct…

Cited by 0SourcePDFScholar
2024

Make Graph Neural Networks Great Again: A Generic Integration Paradigm of Topology-Free Patterns for Traffic Speed Prediction

IJCAI 2024poster

Urban traffic speed prediction aims to estimate the future traffic speed for improving urban transportation services. Enormous efforts have been made to exploit Graph Neural Networks (GNNs) for modeling spatial correlations and temporal dependencies of traffic speed evolving patterns, regularized by…

2024

Question Calibration and Multi-Hop Modeling for Temporal Question Answering

AAAI 2024technical

Many models that leverage knowledge graphs (KGs) have recently demonstrated remarkable success in question answering (QA) tasks. In the real world, many facts contained in KGs are time-constrained thus temporal KGQA has received increasing attention. Despite the fruitful efforts of previous models i…

Cited by 6SourcePDFScholar
2024

SCAT: A Time Series Forecasting with Spectral Central Alternating Transformers

IJCAI 2024poster

Time series forecasting has essential applications across various domains. For instance, forecasting power time series can optimize energy usage and bolster grid stability and reliability. Existing models based on transformer architecture are limited to classical design, ignoring the impact of spati…

Cited by 0SourcePDFScholar
2024

SemTrack: A Large-scale Dataset for Semantic Tracking in the Wild

ECCV 2024poster

"Knowing merely where the target is located is not sufficient for many real-life scenarios. In contrast, capturing rich details about the tracked target via its semantic trajectory, i.e. who/what this target is interacting with and when, where, and how they are interacting over time, is especially c…

Cited by 1SourcePDFScholar
2024

Semi-supervised Multi-label Learning with Balanced Binary Angular Margin Loss

NeurIPS 2024spotlight

Semi-supervised multi-label learning (SSMLL) refers to inducing classifiers using a small number of samples with multiple labels and many unlabeled samples. The prevalent solution of SSMLL involves forming pseudo-labels for unlabeled samples and inducing classifiers using both labeled and pseudo-lab…

Cited by 0SourcePDFScholar
2024

TFWT: Tabular Feature Weighting with Transformer

IJCAI 2024poster

In this paper, we propose a novel feature weighting method to address the limitation of existing feature processing methods for tabular data. Typically the existing methods assume equal importance across all samples and features in one dataset. This simplified processing methods overlook the unique…

Cited by 16SourcePDFScholar
2023

Adaptive Path-Memory Network for Temporal Knowledge Graph Reasoning

IJCAI 2023poster

Temporal knowledge graph (TKG) reasoning aims to predict the future missing facts based on historical information and has gained increasing research interest recently. Lots of works have been made to model the historical structural and temporal characteristics for the reasoning task. Most existing w…

2023

Geometric-Feature Representation Based Pre-Training Method for Reinforcement Learning of Peg-in-Hole Tasks

RA-L 2023

Recently, reinforcement learning (RL) is often used for learning the strategy of peg-in-hole tasks. However, traditional state representation of PiH RL might be either redundant or abstract, which leads to unnecessary learning steps and incompatibility with mathematical training optimization. To iss

Cited by 9SourceScholar
2023

Modeling Entities As Semantic Points for Visual Information Extraction in the Wild

CVPR 2023poster

Recently, Visual Information Extraction (VIE) has been becoming increasingly important in both academia and industry, due to the wide range of real-world applications. Previously, numerous works have been proposed to tackle this problem. However, the benchmarks used to assess these methods are relat…

2023

Reinforcement-Enhanced Autoregressive Feature Transformation: Gradient-steered Search in Continuous Space for Postfix Expressions

NeurIPS 2023spotlight

Feature transformation aims to generate new pattern-discriminative feature space from original features to improve downstream machine learning (ML) task performances. However, the discrete search space for the optimal feature explosively grows on the basis of combinations of features and operations…

Cited by 21SourcePDFScholar
2023

Sharpness-Aware Gradient Matching for Domain Generalization

CVPR 2023poster

The goal of domain generalization (DG) is to enhance the generalization capability of the model learned from a source domain to other unseen domains. The recently developed Sharpness-Aware Minimization (SAM) method aims to achieve this goal by minimizing the sharpness measure of the loss landscape.…

2022

Candidate Soups: Fusing Candidate Results Improves Translation Quality for Non-Autoregressive Translation

EMNLP 2022main

Non-autoregressive translation (NAT) model achieves a much faster inference speed than the autoregressive translation (AT) model because it can simultaneously predict all tokens during inference. However, its translation quality suffers from degradation compared to AT. And existing NAT methods only…

2021

Context-Guided Adaptive Network for Efficient Human Pose Estimation

AAAI 2021technical

Although recent work has achieved great progress in human pose estimation (HPE), most methods show limitations in either inference speed or accuracy. In this paper, we propose a fast and accurate end-to-end HPE method, which is specifically designed to overcome the commonly encountered jitter box, d…

2021

PGNet: Real-time Arbitrarily-Shaped Text Spotting with Point Gathering Network

AAAI 2021technical

The reading of arbitrarily-shaped text has received increasing research attention. However, existing text spotters are mostly built on two-stage frameworks or character-based methods, which suffer from either Non-Maximum Suppression (NMS), Region-of-Interest (RoI) operations, or character-level anno…

2021

Pattern-enhanced Contrastive Policy Learning Network for Sequential Recommendation

IJCAI 2021poster

Sequential recommendation aims to predict users’ future behaviors given their historical interactions. However, due to the randomness and diversity of a user’s behaviors, not all historical items are informative to tell his/her next choice. It is obvious that identifying relevant items and extractin…

Cited by 39SourcePDFScholar
2020

Pattern Analysis and Parameters Optimization of Dynamic Movement Primitives for Learning Unknown Trajectories

IROS 2020poster

A robot in the future may initially has a good learning capability but an empty library of movements. It gradually enriches its library of movements through human demonstrations. Dynamic Movement Primitives (DMPs) has been proved to be an effective way to represent trajectories. Trajectories are cla…

Cited by 3SourceScholar
2019

A Unified Active Assistance Control Framework of Hip Exoskeleton for Walking and Balance Assistance

IROS 2019poster

To actively assist human walking and balance recovery, a unified active assistance control framework of the hip exoskeleton is proposed in this paper. At the beginning of this paper, the condition of active assistance is analyzed. And then, a novel virtual stiffness model is proposed based on the an…

Cited by 8SourceScholar
2018

Left-Right Comparative Recurrent Model for Stereo Matching

CVPR 2018poster

Leveraging the disparity information from both left and right views is crucial for stereo disparity estimation. Left-right consistency check is an effective way to enhance the disparity estimation by referring to the information from the opposite view. However, the conventional left-right consisten…

Cited by 115SourcePDFScholar