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Xing Wu

13 accepted papers

2026

LiteLong: Resource-Efficient Long-Context Data Synthesis for LLMs

AAAI 2026technical

High-quality long-context data is essential for training large language models (LLMs) capable of processing extensive documents, yet existing synthesis approaches using relevance-based aggregation face challenges of computational efficiency. We present LiteLong, a resource-efficient method for synth

Cited by 0SourcePDFScholar
2026

Put the Space of LoRA Initialization to the Extreme to Preserve Pre-trained Knowledge

AAAI 2026technical

Low-Rank Adaptation (LoRA) is the leading parameter-efficient fine-tuning method for Large Language Models (LLMs), but it still suffers from catastrophic forgetting. Recent work has shown that specialized LoRA initialization can alleviate catastrophic forgetting. There are currently two approaches t

Cited by 0SourcePDFScholar
2025

SAM Adaptation with Refocused Attention and Diverse Prompts for Medical Image Segmentation

ICASSP 2025accepted

The adaptation research of SAM in the field of medical image mainly adopts two types of methods: parameter fine-tuning and prompt engineering, but these methods face two main issues: (1)Parameter fine-tuning methods have limitations in focusing the model encoder’s attention on the foreground of medi…

Cited by 0SourceScholar
2025

Task-level Distributionally Robust Optimization for Large Language Model-based Dense Retrieval

AAAI 2025technical

Large Language Model-based Dense Retrieval (LLM-DR) optimizes over numerous heterogeneous fine-tuning collections from different domains. However, the discussion about its training data distribution is still minimal. Previous studies rely on empirically assigned dataset choices or sampling ratios, w…

2024

Dual Directional Complementary Gradient Fusion and Deep Refinement for Hyperspectral Image Super Resolution

ICASSP 2024accepted

The spatial and spectral resolution trade-off in the hyperspectral imaging is a fundamental and essential issue, and automatically generating high-resolution images in both spatial and spectral domains (HR-HS) by merging a low spatial resolution hyperspectral (LR-HS) image and a high spatial resolut…

Cited by 0SourceScholar
2024

EDM: Synthetic Data from Exemplar Diffusion Model Improves Non-Communicable Diseases Detection

ICASSP 2024accepted

There have been researches revealing obvious associations between facial phenotypes and non-communicable diseases (NCDs), which enables effective health assessment with the integration of model-based learning methods. However, the paucity and poor quality of available datasets hinder the development…

Cited by 0SourceScholar
2024

Texture-Unet: A Texture-Aware Network for Bone Marrow Smear Whole-Slide Image Region of Interest Segmentation

ICASSP 2024accepted

Bone marrow smear cytology involves observing and analyzing the morphological features of bone marrow cells, and identifying regions of interest (ROI) where the cells are morphologically clear and evenly distributed is a crucial part of this process. However, existing deep learning methods for selec…

Cited by 0SourceScholar
2023

ConTextual Masked Auto-Encoder for Dense Passage Retrieval

AAAI 2023technical

Dense passage retrieval aims to retrieve the relevant passages of a query from a large corpus based on dense representations (i.e., vectors) of the query and the passages. Recent studies have explored improving pre-trained language models to boost dense retrieval performance. This paper proposes CoT…

2022

ESimCSE: Enhanced Sample Building Method for Contrastive Learning of Unsupervised Sentence Embedding

COLING 2022main

Contrastive learning has been attracting much attention for learning unsupervised sentence embeddings. The current state-of-the-art unsupervised method is the unsupervised SimCSE (unsup-SimCSE). Unsup-SimCSE takes dropout as a minimal data augmentation method, and passes the same input sentence to a…

2022

InfoCSE: Information-aggregated Contrastive Learning of Sentence Embeddings

EMNLP 2022finding

Contrastive learning has been extensively studied in sentence embedding learning, which assumes that the embeddings of different views of the same sentence are closer. The constraint brought by this assumption is weak, and a good sentence representation should also be able to reconstruct the origina…

2022

RaP: Redundancy-aware Video-language Pre-training for Text-Video Retrieval

EMNLP 2022finding

Video language pre-training methods have mainly adopted sparse sampling techniques to alleviate the temporal redundancy of videos. Though effective, sparse sampling still suffers inter-modal redundancy: visual redundancy and textual redundancy. Compared with highly generalized text, sparsely sampled…

2022

Smoothed Contrastive Learning for Unsupervised Sentence Embedding

COLING 2022main

Unsupervised contrastive sentence embedding models, e.g., unsupervised SimCSE, use the InfoNCE loss function in training. Theoretically, we expect to use larger batches to get more adequate comparisons among samples and avoid overfitting. However, increasing batch size leads to performance degradati…

2022

Text Smoothing: Enhance Various Data Augmentation Methods on Text Classification Tasks

ACL 2022short

Before entering the neural network, a token needs to be converted to its one-hot representation, which is a discrete distribution of the vocabulary. Smoothed representation is the probability of candidate tokens obtained from the pre-trained masked language model, which can be seen as a more informa…