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Cheng Jin

33 accepted papers

2026

Advanced Black-Box Tuning of Large Language Models with Limited API Calls

AAAI 2026technical

Black-box tuning is an emerging paradigm for adapting large language models (LLMs) to better achieve desired behaviors, particularly when direct access to model parameters is unavailable. Current strategies, however, often present a dilemma of suboptimal extremes: either separately train a small pro

Cited by 0SourcePDFScholar
2026

AutoQRA: Joint Optimization of Mixed-Precision Quantization and Low-rank Adapters for Efficient LLM Fine-Tuning

ICML 2026poster

Quantization followed by parameter-efficient fine-tuning has emerged as a promising paradigm for downstream adaptation under tight GPU memory constraints. However, this sequential pipeline fails to leverage the intricate interaction between quantization bit-width and LoRA rank. Specifically, a caref…

Cited by 0SourceScholar
2026

Explore and Establish Synergistic Effects Between Weight Pruning and Coreset Selection in Neural Network Training

AAAI 2026technical

Modern deep neural networks rely heavily on massive model weights and training samples, incurring substantial computational costs. Weight pruning and coreset selection are two emerging paradigms proposed to improve computational efficiency. In this paper, we first explore the interplay between redu

Cited by 0SourcePDFScholar
2026

Investigating Data Pruning for Pretraining Biological Foundation Models at Scale

AAAI 2026technical

Biological foundation models (BioFMs), pretrained on large-scale biological sequences, have recently shown strong potential in providing meaningful representations for diverse downstream bioinformatics tasks. However, such models often rely on millions to billions of training sequences and billions

Cited by 0SourcePDFScholar
2025

Achieving Ensemble-Like Performance in a Single Model: A Feature Diversification Framework for Image-Text Matching

AAAI 2025technical

Model ensembling is a widely used technique that enhances performance in image-text matching tasks by combining multiple models, each trained with different initializations. However, the inefficiencies associated with training several models and generating outputs from them constrain their practical…

Cited by 0SourcePDFScholar
2025

An Exemplar-based Framework for Chinese Text Recognition

AAAI 2025technical

This paper introduces a novel exemplar-based framework for reading Chinese texts in natural scene or document images. We present the Deep Exemplar-based Chinese Text Recognizer, which is structured to first identify candidate characters as exemplars from each text-line, and subsequently recognize th…

Cited by 0SourcePDFScholar
2025

Angle Domain Guidance: Latent Diffusion Requires Rotation Rather Than Extrapolation

ICML 2025poster

Classifier-free guidance (CFG) has emerged as a pivotal advancement in text-to-image latent diffusion models, establishing itself as a cornerstone technique for achieving high-quality image synthesis. However, under high guidance weights, where text-image alignment is significantly enhanced, CFG als…

2025

Complete Structure Guided Point Cloud Completion via Cluster- and Instance-Level Contrastive Learning

NeurIPS 2025spotlight

Point cloud completion, aiming to reconstruct missing part from incomplete point clouds, is a pivotal task in 3D computer vision. Traditional supervised approaches often necessitate complete point clouds for training supervision, which are not readily accessible in real-world applications. Recent st…

Cited by 0SourceScholar
2025

Expanding the Scope of Negatives: Boosting Image-Text Matching with Negatives Distribution Guided Learning

AAAI 2025technical

Image-text matching is a crucial task that bridges visual and linguistic modalities. Recent research typically formulates it into the problem of maximizing the margin with the truly hardest negatives to enhance the learning efficiency and avoid the poor local optima. We argue that such formulation c…

Cited by 0SourcePDFScholar
2025

GameGen-X: Interactive Open-world Game Video Generation

ICLR 2025poster

We introduce GameGen-$\mathbb{X}$, the first diffusion transformer model specifically designed for both generating and interactively controlling open-world game videos. This model facilitates high-quality, open-domain generation by approximating various game elements, such as innovative charact…

2025

Optimized Gradient Clipping for Noisy Label Learning

AAAI 2025technical

Previous research has shown that constraining the gradient of loss function w.r.t. model-predicted probabilities can enhance the model robustness against noisy labels. These methods typically specify a fixed optimal threshold for gradient clipping through validation data to obtain the desired robust…

2025

Population Normalization for Federated Learning

CVPR 2025poster

Batch normalization (BN) is widely recognized as an essential method in training deep neural networks, facilitating convergence and enhancing model stability. However, in Federated Learning (FL) contexts, where training data are typically heterogeneous and clients often face resource constraints, th…

Cited by 0SourcePDFScholar
2025

Towards Robust Influence Functions with Flat Validation Minima

ICML 2025poster

The Influence Function (IF) is a widely used technique for assessing the impact of individual training samples on model predictions. However, existing IF methods often fail to provide reliable influence estimates in deep neural networks, particularly when applied to noisy training data. This issue d…

Cited by 0SourcePDFScholar
2025

Unified Multimodal Chain-of-Thought Reward Model through Reinforcement Fine-Tuning

NeurIPS 2025poster

Recent advances in multimodal Reward Models (RMs) have shown significant promise in delivering reward signals to align vision models with human preferences. However, current RMs are generally restricted to providing direct responses or engaging in shallow reasoning processes with limited depth, ofte…

Cited by 0SourceScholar
2025

Unleashing the Semantic Adaptability of Controlled Diffusion Model for Image Colorization

IJCAI 2025

Recent data-driven image colorization methods have leveraged pre-trained Text-to-Image (T2I) diffusion models as generative prior, while still suffering from unsatisfactory and inaccurate semantic-level color control. To address these issues, we propose a Semantic Adaptation method (SeAda) that enha

2024

EPA: Neural Collapse Inspired Robust Out-of-distribution Detector

ICASSP 2024accepted

Out-of-distribution (OOD) detection plays a crucial role in ensuring the security of neural networks. Existing works have leveraged the fact that In-distribution (ID) samples form a subspace in the feature space, achieving state-of-the-art (SOTA) performance. However, the comprehensive characteristi…

Cited by 0SourceScholar
2024

Efficient Scene Text Image Super-Resolution with Semantic Guidance

ICASSP 2024accepted

Scene text image super-resolution has significantly improved the accuracy of scene text recognition. However, many existing methods emphasize performance over efficiency and ignore the practical need for lightweight solutions in deployment scenarios. Faced with the issues, our work proposes an effic…

Cited by 0SourceScholar
2024

FusionFormer: A Concise Unified Feature Fusion Transformer for 3D Pose Estimation

AAAI 2024technical

Depth uncertainty is a core challenge in 3D human pose estimation, especially when the camera parameters are unknown. Previous methods try to reduce the impact of depth uncertainty by multi-view and/or multi-frame feature fusion to utilize more spatial and temporal information. However, they general…

2024

High-fidelity Person-centric Subject-to-Image Synthesis

CVPR 2024poster

Current subject-driven image generation methods encounter significant challenges in person-centric image generation. The reason is that they learn the semantic scene and person generation by fine-tuning a common pre-trained diffusion which involves an irreconcilable training imbalance. Precisely to…

2024

Point Cloud Part Editing: Segmentation, Generation, Assembly, and Selection

AAAI 2024technical

Ideal part editing should guarantee the diversity of edited parts, the fidelity to the remaining parts, and the quality of the results. However, previous methods do not disentangle each part completely, which means the edited parts will affect the others, resulting in poor diversity and fidelity. In…

2024

PoseIRM: Enhance 3D Human Pose Estimation on Unseen Camera Settings via Invariant Risk Minimization

CVPR 2024poster

Camera-parameter-free multi-view pose estimation is an emerging technique for 3D human pose estimation (HPE). They can infer the camera settings implicitly or explicitly to mitigate the depth uncertainty impact showcasing significant potential in real applications. However due to the limited camera…

Cited by 3SourcePDFScholar
2024

Target Optimization Direction Guided Transfer Learning for Image Classification

ICASSP 2024accepted

At present, deep learning has made impressive achievements in various fields; however, effectively training deep neural networks on small data sets remains a significant challenge. Transfer learning, as a method of efficient training across multiple tasks, has been widely used to solve this problem.…

Cited by 0SourceScholar
2024

The Continuous Jump Control of a Locust-Inspired Robot With Omnidirectional Trajectory Adjustment

RA-L 2024

Jumping is an effective way for small robots to overcome obstacles. After years of development, many miniature jumping robots have been proposed with various mechanisms, and they have achieved jump trajectory control, fall recovery, and even continuous jumps. However, most miniature jumping robots d

Cited by 7SourceScholar
2024

Unleashing the Denoising Capability of Diffusion Prior for Solving Inverse Problems

NeurIPS 2024poster

The recent emergence of diffusion models has significantly advanced the precision of learnable priors, presenting innovative avenues for addressing inverse problems. Previous works have endeavored to integrate diffusion priors into the maximum a posteriori estimation (MAP) framework and design optim…

2022

Attention-Based Transformation from Latent Features to Point Clouds

AAAI 2022technical

In point cloud generation and completion, previous methods for transforming latent features to point clouds are generally based on fully connected layers (FC-based) or folding operations (Folding-based). However, point clouds generated by FC-based methods are usually troubled by outliers and rough s…

2022

SpanConv: A New Convolution via Spanning Kernel Space for Lightweight Pansharpening

IJCAI 2022poster

Standard convolution operations can effectively perform feature extraction and representation but result in high computational cost, largely due to the generation of the original convolution kernel corresponding to the channel dimension of the feature map, which will cause unnecessary redundancy. In…

2021

CPCGAN: A Controllable 3D Point Cloud Generative Adversarial Network with Semantic Label Generating

AAAI 2021technical

Generative Adversarial Networks (GAN) are good at generating variant samples of complex data distributions. Generating a sample with certain properties is one of the major tasks in the real-world application of GANs. In this paper, we propose a novel generative adversarial network to generate 3D poi…

Cited by 19SourcePDFScholar
2020

One-sample Guided Object Representation Disassembling

NeurIPS 2020poster

The ability to disassemble the features of objects and background is crucial for many machine learning tasks, including image classification, image editing, visual concepts learning, and so on. However, existing (semi-)supervised methods all need a large amount of annotated samples, while unsupervis…