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yucheng wang

31 accepted papers

2026

A Unified Shape-Aware Foundation Model for Time Series Classification

AAAI 2026technical

Foundation models pre-trained on large-scale source datasets are reshaping the traditional training paradigm for time series classification. However, existing time series foundation models primarily focus on forecasting tasks and often overlook classification-specific challenges, such as modeling in

Cited by 0SourcePDFScholar
2026

Assignment-Driven Hash Learning in a Hyper-Semantic Space for On-the-Fly Category Discovery

CVPR 2026

On-the-fly Category Discovery (OCD) aims to dynamically identify both known and emerging unknown categories from streaming data, using supervision from only a limited set of labeled classes. Despite recent progress, our empirical analysis reveals fundamental limitations: existing methods suffer from

Cited by 0SourceScholar
2026

BEE-RAG: Balanced Entropy Engineering for Retrieval-Augmented Generation

AAAI 2026technical

With the rapid advancement of large language models (LLMs), retrieval-augmented generation (RAG) has emerged as a critical approach to supplement the inherent knowledge limitations of LLMs. However, due to the typically large volume of retrieved information, RAG tends to operate with long context le

Cited by 0SourcePDFScholar
2026

CARE-Edit: Condition-Aware Routing of Experts for Contextual Image Editing

CVPR 2026

Unified diffusion editors often rely on a fixed, shared backbone for diverse tasks, suffering from task interference and poor adaptation to heterogeneous demands (e.g., local vs global, semantic vs photometric). In particular, prevalent ControlNet and OmniControl variants combine multiple conditioni

Cited by 0SourcecodeScholar
2026

Compose and Fuse: Revisiting the Foundational Bottlenecks in Multimodal Reasoning

ICLR 2026poster

Multimodal large language models (MLLMs) promise enhanced reasoning by integrating diverse inputs such as text, vision, and audio. Yet, despite their perceptual strengths, their reasoning ability across modalities remains underexplored, with conflicting reports on whether additional modalities help…

Cited by 0SourceScholar
2026

GPan-LoRA: Gaussian Process Amortized Networks for Bayesian Low-Rank Adaptation in Large Language Models

ICML 2026poster

Principled uncertainty quantification (UQ) is increasingly recognized as essential for trustworthy artificial general intelligence (AGI). Bayesian Low-Rank Adaptation (LoRA) provides a principled mechanism for uncertainty-aware fine-tuning of large language models (LLMs). However, existing technique…

Cited by 0SourceScholar
2026

Linking Perception, Confidence and Accuracy in MLLMs

CVPR 2026

Recent advances in Multi-modal Large Language Models (MLLMs) have predominantly focused on enhancing visual \perception to improve \accuracy. However, a critical question remains unexplored: Do models know when they do not know? Through a probing experiment, we reveal a severe \confidence miscalibra

Cited by 0SourcecodeScholar
2026

MapDream: Task-Driven Map Learning for Vision-Language Navigation

ICML 2026poster

Vision-Language Navigation (VLN) requires agents to follow natural language instructions in partially observed 3D environments, motivating map representations that aggregate spatial context beyond local perception. However, most existing approaches rely on hand-crafted maps constructed independently…

Cited by 0SourceScholar
2026

MonoDream: Monocular Vision-Language Navigation with Panoramic Dreaming

AAAI 2026technical

Vision-Language Navigation (VLN) tasks often leverage panoramic RGB and depth inputs to provide rich spatial cues for action planning, but these sensors can be costly or less accessible in real-world deployments. Recent approaches based on Vision-Language Action (VLA) models achieve strong results w

Cited by 0SourcePDFScholar
2026

Progress-Think: Semantic Progress Reasoning for Vision-Language Navigation

CVPR 2026

Vision-Language Navigation requires agents to act coherently over long horizons by understanding not only local visual context but also how far they have advanced within a multi-step instruction.However, recent Vision-Language-Action models focus on direct action prediction and earlier progress meth

Cited by 0SourceScholar
2025

Aux-Think: Exploring Reasoning Strategies for Data-Efficient Vision-Language Navigation

NeurIPS 2025poster

Vision-Language Navigation is a critical task for developing embodied agents that can follow natural language instructions to navigate in complex real-world environments. Recent advances by finetuning large pretrained models have significantly improved generalization and instruction grounding compa…

Cited by 0SourceScholar
2025

C-LoRA: Contextual Low-Rank Adaptation for Uncertainty Estimation in Large Language Models

NeurIPS 2025poster

Low-Rank Adaptation (LoRA) offers a cost-effective solution for fine-tuning large language models (LLMs), but it often produces overconfident predictions in data-scarce few-shot settings. To address this issue, several classical statistical learning approaches have been repurposed for scalable uncer…

Cited by 0SourcecodeScholar
2025

DREAM: Disentangling Risks to Enhance Safety Alignment in Multimodal Large Language Models

NAACL 2025long

Multimodal Large Language Models (MLLMs) pose unique safety challenges due to their integration of visual and textual data, thereby introducing new dimensions of potential attacks and complex risk combinations. In this paper, we begin with a detailed analysis aimed at disentangling risks through ste…

2025

From One to More: Contextual Part Latents for 3D Generation

ICCV 2025poster

To generate 3D objects, early research focused on multi-view-driven approaches relying solely on 2D renderings. Recently, the 3D native latent diffusion paradigm has demonstrated superior performance in 3D generation, because it fully leverages the geometric information provided in ground truth 3D d…

2024

Conditional Generative Denoiser for Nighttime UAV Tracking

IROS 2024

State-of-the-art (SOTA) visual object tracking methods have significantly enhanced the autonomy of unmanned aerial vehicles (UAVs). However, in low-light conditions, the presence of irregular real noise from the environments severely degrades the performance of these SOTA methods. Moreover, existing

Cited by 5SourcecodeScholar
2024

Enhancing Tactile Sensing in Robotics: Dual-Modal Force and Shape Perception with EIT-based Sensors and MM-CNN

ICRA 2024poster

Electrical Impedance Tomography (EIT)-based tactile sensors offer durability, scalability, and cost-effective manufacturing. However, simultaneously reconstructing force and shape from boundary measurements remains challenging due to EIT’s inherent location dependencies and image artifacts. This stu…

Cited by 2SourceScholar
2024

Foster Adaptivity and Balance in Learning with Noisy Labels

ECCV 2024poster

"Label noise is ubiquitous in real-world scenarios, posing a practical challenge to supervised models due to its effect in hurting the generalization performance of deep neural networks. Existing methods primarily employ the sample selection paradigm and usually rely on dataset-dependent prior knowl…

Cited by 6SourcePDFScholar
2024

Fully-Connected Spatial-Temporal Graph for Multivariate Time-Series Data

AAAI 2024technical

Multivariate Time-Series (MTS) data is crucial in various application fields. With its sequential and multi-source (multiple sensors) properties, MTS data inherently exhibits Spatial-Temporal (ST) dependencies, involving temporal correlations between timestamps and spatial correlations between senso…

2024

Graph-Aware Contrasting for Multivariate Time-Series Classification

AAAI 2024technical

Contrastive learning, as a self-supervised learning paradigm, becomes popular for Multivariate Time-Series (MTS) classification. It ensures the consistency across different views of unlabeled samples and then learns effective representations for these samples. Existing contrastive learning methods m…

2024

Knowledge Transfer with Simulated Inter-Image Erasing for Weakly Supervised Semantic Segmentation

ECCV 2024poster

"Though adversarial erasing has prevailed in weakly supervised semantic segmentation to help activate integral object regions, existing approaches still suffer from the dilemma of under-activation and over-expansion due to the difficulty in determining when to stop erasing. In this paper, we propose…

2024

Textual Tokens Classification for Multi-Modal Alignment in Vision-Language Tracking

ICASSP 2024accepted

Most vision-language (VL) trackers rely on coarse-grained information from sentences to achieve multi-modal alignment. However, this information is insufficient for accurately describing the target in each frame due to the inherent ambiguity, summarization, and invariance of sentences, thereby makin…

Cited by 0SourceScholar
2024

Uncertainty-aware Continuous Implicit Neural Representations for Remote Sensing Object Counting

AISTATS 2024poster

Many existing object counting methods rely on density map estimation (DME) of the discrete grid representation by decoding extracted image semantic features from designed convolutional neural networks (CNNs). Relying on discrete density maps not only leads to information loss dependent on the origin…

2023

Cascaded Denoising Transformer for UAV Nighttime Tracking

RA-L 2023

The automation of unmanned aerial vehicles (UAVs) has been greatly promoted by visual object tracking methods with onboard cameras. However, the random and complicated real noise produced by the cameras seriously hinders the performance of state-of-the-art (SOTA) UAV trackers, especially in low-illu

Cited by 11SourceScholar
2023

SEnsor Alignment for Multivariate Time-Series Unsupervised Domain Adaptation

AAAI 2023technical

Unsupervised Domain Adaptation (UDA) methods can reduce label dependency by mitigating the feature discrepancy between labeled samples in a source domain and unlabeled samples in a similar yet shifted target domain. Though achieving good performance, these methods are inapplicable for Multivariate T…

2022

Document-Level Event Extraction via Human-Like Reading Process

ICASSP 2022accepted

Document-level Event Extraction (DEE) is particularly tricky due to the two challenges it poses: scattering-arguments and multi-events. The first challenge means that arguments of one event record could reside in different sentences in the document, while the second one reflects that one document ma…

Cited by 0SourceScholar
2021

Discontinuous Named Entity Recognition as Maximal Clique Discovery

ACL 2021long

Named entity recognition (NER) remains challenging when entity mentions can be discontinuous. Existing methods break the recognition process into several sequential steps. In training, they predict conditioned on the golden intermediate results, while at inference relying on the model output of the…

2021

Distilling Holistic Knowledge With Graph Neural Networks

ICCV 2021poster

Knowledge Distillation (KD) aims at transferring knowledge from a larger well-optimized teacher network to a smaller learnable student network. Existing KD methods have mainly considered two types of knowledge, namely the individual knowledge and the relational knowledge. However, these two types of…

Cited by 80PDFcodeScholar
2021

Maximal Clique Based Non-Autoregressive Open Information Extraction

EMNLP 2021main

Open Information Extraction (OpenIE) aims to discover textual facts from a given sentence. In essence, the facts contained in plain text are unordered. However, the popular OpenIE systems usually output facts sequentially in the way of predicting the next fact conditioned on the previous decoded one…

Cited by 19SourcePDFScholar
2020

TPLinker: Single-stage Joint Extraction of Entities and Relations Through Token Pair Linking

COLING 2020main

Extracting entities and relations from unstructured text has attracted increasing attention in recent years but remains challenging, due to the intrinsic difficulty in identifying overlapping relations with shared entities. Prior works show that joint learning can result in a noticeable performance…