Search Results for author: Changjun Jiang

Found 18 papers, 12 papers with code

Urban Architect: Steerable 3D Urban Scene Generation with Layout Prior

no code implementations10 Apr 2024 Fan Lu, Kwan-Yee Lin, Yan Xu, Hongsheng Li, Guang Chen, Changjun Jiang

(2) To handle the unbounded nature of urban scenes, we represent 3D scene with a Scalable Hash Grid structure, incrementally adapting to the growing scale of urban scenes.

3D Generation Model Optimization +2

LiDAR4D: Dynamic Neural Fields for Novel Space-time View LiDAR Synthesis

1 code implementation3 Apr 2024 Zehan Zheng, Fan Lu, Weiyi Xue, Guang Chen, Changjun Jiang

In light of this, we propose LiDAR4D, a differentiable LiDAR-only framework for novel space-time LiDAR view synthesis.

3D Reconstruction 4D reconstruction +3

Pensieve: Retrospect-then-Compare Mitigates Visual Hallucination

1 code implementation21 Mar 2024 Dingchen Yang, Bowen Cao, Guang Chen, Changjun Jiang

Multi-modal Large Language Models (MLLMs) demonstrate remarkable success across various vision-language tasks.

Hallucination Specificity

MAP: MAsk-Pruning for Source-Free Model Intellectual Property Protection

1 code implementation7 Mar 2024 Boyang Peng, Sanqing Qu, Yong Wu, Tianpei Zou, Lianghua He, Alois Knoll, Guang Chen, Changjun Jiang

In this paper, we target a practical setting where only a well-trained source model is available and investigate how we can realize IP protection.

Sophisticated Behavioral Simulation: A Possible Solution to Problems of Organized Complexity

no code implementations18 Jan 2024 Cheng Wang, Chuwen Wang, Yu Zhao, Wang Zhang, Shirong Zeng, Ronghui Ning, Changjun Jiang

As a matter of facts, they act as the best tool to handle problems in complex systems where closed-form expressions are unavailable and the target distribution in the representation space is too complex to be fully represented by data-driven learning models, such as deep learning (DL) models.

Weather Forecasting

Spreeze: High-Throughput Parallel Reinforcement Learning Framework

no code implementations11 Dec 2023 Jing Hou, Guang Chen, Ruiqi Zhang, Zhijun Li, Shangding Gu, Changjun Jiang

While existing parallel RL frameworks encompass a variety of RL algorithms and parallelization techniques, the excessively burdensome communication frameworks hinder the attainment of the hardware's limit for final throughput and training effects on a single desktop.

reinforcement-learning Reinforcement Learning (RL)

CFGPT: Chinese Financial Assistant with Large Language Model

1 code implementation19 Sep 2023 Jiangtong Li, Yuxuan Bian, Guoxuan Wang, Yang Lei, Dawei Cheng, Zhijun Ding, Changjun Jiang

The CFAPP is centered on large language models (LLMs) and augmented with additional modules to ensure multifaceted functionality in real-world application.

Decision Making Language Modelling +2

Urban Radiance Field Representation with Deformable Neural Mesh Primitives

1 code implementation ICCV 2023 Fan Lu, Yan Xu, Guang Chen, Hongsheng Li, Kwan-Yee Lin, Changjun Jiang

To construct urban-level radiance fields efficiently, we design Deformable Neural Mesh Primitive~(DNMP), and propose to parameterize the entire scene with such primitives.

Image Generation Novel View Synthesis

NeuralPCI: Spatio-temporal Neural Field for 3D Point Cloud Multi-frame Non-linear Interpolation

1 code implementation CVPR 2023 Zehan Zheng, Danni Wu, Ruisi Lu, Fan Lu, Guang Chen, Changjun Jiang

In light of these issues, we present NeuralPCI: an end-to-end 4D spatio-temporal Neural field for 3D Point Cloud Interpolation, which implicitly integrates multi-frame information to handle nonlinear large motions for both indoor and outdoor scenarios.

3D Point Cloud Interpolation Autonomous Driving

TMA: Temporal Motion Aggregation for Event-based Optical Flow

1 code implementation ICCV 2023 Haotian Liu, Guang Chen, Sanqing Qu, Yanping Zhang, Zhijun Li, Alois Knoll, Changjun Jiang

In this paper, we argue that temporal continuity is a vital element of event-based optical flow and propose a novel Temporal Motion Aggregation (TMA) approach to unlock its potential.

Event-based Optical Flow Optical Flow Estimation

Modality-Agnostic Debiasing for Single Domain Generalization

no code implementations CVPR 2023 Sanqing Qu, Yingwei Pan, Guang Chen, Ting Yao, Changjun Jiang, Tao Mei

We validate the superiority of our MAD in a variety of single-DG scenarios with different modalities, including recognition on 1D texts, 2D images, 3D point clouds, and semantic segmentation on 2D images.

Data Augmentation Domain Generalization +1

Upcycling Models under Domain and Category Shift

3 code implementations CVPR 2023 Sanqing Qu, Tianpei Zou, Florian Roehrbein, Cewu Lu, Guang Chen, DaCheng Tao, Changjun Jiang

We examine the superiority of our GLC on multiple benchmarks with different category shift scenarios, including partial-set, open-set, and open-partial-set DA.

Clustering Source-Free Domain Adaptation +2

Unified Multimodal Model with Unlikelihood Training for Visual Dialog

1 code implementation23 Nov 2022 ZiHao Wang, Junli Wang, Changjun Jiang

Prior work performs the standard likelihood training for answer generation on the positive instances (involving correct answers).

Answer Generation Chatbot +4

Modeling and Analysis of Three Properties of Mobile Interactive Systems Based on Variable Petri Nets

no code implementations15 Jan 2021 Ru Yang, Zhijun Ding, Changjun Jiang, Mengchu Zhou

The case study of a practical mobile payment system shows the effectiveness of the proposed method.

Cannot find the paper you are looking for? You can Submit a new open access paper.