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Decoding speech from brain signals is a challenging research problem. Although existing technologies have made progress in reconstructing the mel spectrograms of auditory stimuli at the word or letter level, there remain core challenges in…

声音 · 计算机科学 2025-08-12 Cunhang Fan , Sheng Zhang , Jingjing Zhang , Enrui Liu , Xinhui Li , Gangming Zhao , Zhao Lv

Deep learning models for semantic segmentation often experience performance degradation when deployed to unseen target domains unidentified during the training phase. This is mainly due to variations in image texture (\ie style) from…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Woo-Jin Ahn , Geun-Yeong Yang , Hyun-Duck Choi , Myo-Taeg Lim

Domain Generalized Semantic Segmentation (DGSS) seeks to utilize source domain data exclusively to enhance the generalization of semantic segmentation across unknown target domains. Prevailing studies predominantly concentrate on feature…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Hongwei Niu , Linhuang Xie , Jianghang Lin , Shengchuan Zhang

This paper studies uncertainty quantification for large language models (LLMs) under black-box access, where only a small number of responses can be sampled for each query. In this setting, estimating the effective semantic alphabet…

计算与语言 · 计算机科学 2026-04-22 Hongxing Pan , Yingying Guo , Wenqing Kuang , Jiashi Lu

Deep learning based speech enhancement in the short-time Fourier transform (STFT) domain typically uses a large window length such as 32 ms. A larger window can lead to higher frequency resolution and potentially better enhancement. This…

声音 · 计算机科学 2022-12-07 Zhong-Qiu Wang , Gordon Wichern , Shinji Watanabe , Jonathan Le Roux

In-band full-duplex (IBFD) is a theoretically effective solution to increase the overall throughput for the future wireless communications system by enabling transmission and reception over the same time-frequency resources. However,…

信息论 · 计算机科学 2024-08-02 Kai Niu , Zijian Liang , Chao Dong , Jincheng Dai , Zhongwei Si , Ping Zhang

Metaphorical imagination, the ability to connect seemingly unrelated concepts, is fundamental to human cognition and communication. While understanding linguistic metaphors has advanced significantly, grasping multimodal metaphors, such as…

多媒体 · 计算机科学 2026-04-20 Wenhao Qian , Zhenzhen Hu , Zijie Song , Jia Li

This paper tackles the pressing challenge of preserving semantic meaning in communication systems constrained by limited bandwidth. We introduce a novel reinforcement learning framework that achieves per-dimension unequal error protection…

机器学习 · 计算机科学 2026-03-02 Moirangthem Tiken Singh , Adnan Arif

Existing large language models (LLMs) are known for generating "hallucinated" content, namely a fabricated text of plausibly looking, yet unfounded, facts. To identify when these hallucination scenarios occur, we examine the properties of…

计算与语言 · 计算机科学 2023-09-06 Mohamed Akrout

Transformer architectures, underpinned by the self-attention mechanism, have achieved state-of-the-art results across numerous natural language processing (NLP) tasks by effectively modeling long-range dependencies. However, the…

机器学习 · 计算机科学 2025-04-15 Andrew Kiruluta , Priscilla Burity , Samantha Williams

Domain shift widely exists in the visual world, while modern deep neural networks commonly suffer from severe performance degradation under domain shift due to the poor generalization ability, which limits the real-world applications. The…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Yuyang Zhao , Zhun Zhong , Na Zhao , Nicu Sebe , Gim Hee Lee

The surge in interest regarding image dehazing has led to notable advancements in deep learning-based single image dehazing approaches, exhibiting impressive performance in recent studies. Despite these strides, many existing methods fall…

计算机视觉与模式识别 · 计算机科学 2025-01-20 Seongmin Hwang , Daeyoung Han , Cheolkon Jung , Moongu Jeon

Hallucinations in large language models (LLMs) produce fluent continuations that are not supported by the prompt, especially under minimal contextual cues and ambiguity. We introduce Distributional Semantics Tracing (DST), a model-native…

计算与语言 · 计算机科学 2026-03-17 Gagan Bhatia , Somayajulu G Sripada , Kevin Allan , Jacobo Azcona

Retrieval-Augmented Generation (RAG) systems remain susceptible to hallucinations despite grounding in retrieved evidence. While current detection methods leverage embedding similarity and natural language inference (NLI), their reliability…

机器学习 · 计算机科学 2025-12-22 Debu Sinha

The integration of structured hierarchical embeddings into transformer-based architectures introduces a refined approach to lexical representation, ensuring that multi-scale semantic relationships are preserved without compromising…

Data-centric artificial intelligence (AI) has remarkably advanced medical imaging, with emerging methods using synthetic data to address data scarcity while introducing synthetic-to-real gaps. Unsupervised domain adaptation (UDA) shows…

图像与视频处理 · 电气工程与系统科学 2025-09-03 Linyu Fan , Che Wang , Ming Ye , Qizhi Yang , Zejun Wu , Xinghao Ding , Yue Huang , Jianfeng Bao , Shuhui Cai , Congbo Cai

High dynamic range (HDR) imaging from multiple low dynamic range (LDR) images has been suffering from ghosting artifacts caused by scene and objects motion. Existing methods, such as optical flow based and end-to-end deep learning based…

图像与视频处理 · 电气工程与系统科学 2023-11-09 Tianhong Dai , Wei Li , Xilei Cao , Jianzhuang Liu , Xu Jia , Ales Leonardis , Youliang Yan , Shanxin Yuan

In this paper a novel data embedding technique in frequency domain has been proposed using Discrete Fourier Transform (DFT) for image authentication and secured message transmission based on hiding a large volume of data into gray images.…

密码学与安全 · 计算机科学 2012-12-17 Nabin Ghoshal , J. K. Mandal

Image fusion aims to blend complementary information from multiple sensing modalities, yet existing approaches remain limited in robustness, adaptability, and controllability. Most current fusion networks are tailored to specific tasks and…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Jiayang Li , Chengjie Jiang , Junjun Jiang , Pengwei Liang , Jiayi Ma , Liqiang Nie

In this paper, a novel and robust algorithm is proposed for adaptive beamforming based on the idea of reconstructing the autocorrelation sequence (ACS) of a random process from a set of measured data. This is obtained from the first column…

信息论 · 计算机科学 2021-06-25 Saeed Mohammadzadeh , Vitor H. Nascimento , Rodrigo C. de Lamare , Osman Kukrer