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The paper copes with the task of automatic assessment of second language proficiency from the language learners' spoken responses to test prompts. The task has significant relevance to the field of computer assisted language learning. The…

计算与语言 · 计算机科学 2023-10-19 Sara Papi , Edmondo Trentin , Roberto Gretter , Marco Matassoni , Daniele Falavigna

A Brain Computer Interface (BCI) connects the human brain to the outside world, providing a direct communication channel. Electroencephalography (EEG) signals are commonly used in BCIs to reflect cognitive patterns related to motor function…

机器学习 · 计算机科学 2025-11-19 Abdullah Al Shiam , Md. Khademul Islam Molla , Abu Saleh Musa Miah , Md. Abdus Samad Kamal

Functional MRI data exhibit high-dimensional spatiotemporal structure, making both prediction and decoding challenging. In this work, we investigate neural integral-operator-based models for encoding and decoding tasks in fMRI, with…

机器学习 · 计算机科学 2026-05-21 Andreas Kramer , Saugat Acharya , Alice Giola , Emanuele Zappala

Neurophysiological decoding, fundamental to advancing brain-computer interface (BCI) technologies, has significantly benefited from recent advances in deep learning. However, existing decoding approaches largely remain constrained to…

信号处理 · 电气工程与系统科学 2025-08-07 Di Wu , Yifei Jia , Siyuan Li , Shiqi Zhao , Jie Yang , Mohamad Sawan

Mixture-of-Experts (MoE) architectures have become the key to scaling modern LLMs, yet little is understood about how their sparse routing dynamics respond to multilingual data. In this work, we analyze expert routing patterns using…

计算与语言 · 计算机科学 2026-02-19 Lucas Bandarkar , Chenyuan Yang , Mohsen Fayyaz , Junlin Hu , Nanyun Peng

Brain decoding is a data analysis paradigm for neuroimaging experiments that is based on predicting the stimulus presented to the subject from the concurrent brain activity. In order to make inference at the group level, a straightforward…

机器学习 · 统计学 2014-04-17 Emanuele Olivetti , Seyed Mostafa Kia , Paolo Avesani

An increasing number of LLMs employ Mixture-of-Experts (MoE) architectures where the feed-forward layer is replaced by a pool of experts and each token only activates a small subset of them. During autoregressive generation, these models…

This paper presents a novel approach towards creating a foundational model for aligning neural data and visual stimuli across multimodal representationsof brain activity by leveraging contrastive learning. We used electroencephalography…

计算机视觉与模式识别 · 计算机科学 2024-11-18 Matteo Ferrante , Tommaso Boccato , Grigorii Rashkov , Nicola Toschi

Sequential recommendation (SR) systems excel at capturing users' dynamic preferences by leveraging their interaction histories. Most existing SR systems assign a single embedding vector to each item to represent its features, adopting…

信息检索 · 计算机科学 2026-01-21 Mingrui Liu , Sixiao Zhang , Cheng Long

In this study we focus on the problem of joint learning of multiple differential networks with function Magnetic Resonance Imaging (fMRI) data sets from multiple research centers. As the research centers may use different scanners and…

统计方法学 · 统计学 2021-06-08 Hao Chen , Ying Guo , Yong He , Dong Liu , Lei Liu , Xiao-Hua Zhou

Brain encoding and decoding aims to understand the relationship between external stimuli and brain activities, and is a fundamental problem in neuroscience. In this article, we study latent embedding alignment for brain encoding and…

统计方法学 · 统计学 2026-03-24 Shuoxun Xu , Zhanhao Yan , Lexin Li

Biological research has revealed that the verbal semantic information in the brain cortex, as an additional source, participates in nonverbal semantic tasks, such as visual encoding. However, previous visual encoding models did not…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Shuxiao Ma , Linyuan Wang , Bin Yan

The human brain is a complex, dynamic network, which is commonly studied using functional magnetic resonance imaging (fMRI) and modeled as network of Regions of interest (ROIs) for understanding various brain functions. Recent studies…

定量方法 · 定量生物学 2024-06-26 Yifan Yang , Yutong Mao , Xufu Liu , Xiao Liu

The integration of multi-modal Magnetic Resonance Imaging (MRI) and clinical data holds great promise for enhancing the diagnosis of neurological disorders (NDs) in real-world clinical settings. Deep Learning (DL) has recently emerged as a…

图像与视频处理 · 电气工程与系统科学 2025-06-19 Wajih Hassan Raza , Aamir Bader Shah , Yu Wen , Yidan Shen , Juan Diego Martinez Lemus , Mya Caryn Schiess , Timothy Michael Ellmore , Renjie Hu , Xin Fu

Reconstructing the viewed images from human brain activity bridges human and computer vision through the Brain-Computer Interface. The inherent variability in brain function between individuals leads existing literature to focus on…

计算机视觉与模式识别 · 计算机科学 2024-04-01 Ruijie Quan , Wenguan Wang , Zhibo Tian , Fan Ma , Yi Yang

In this study, we propose MoME, a Mixture of Visual Language Medical Experts, for Medical Image Segmentation. MoME adapts the successful Mixture of Experts (MoE) paradigm, widely used in Large Language Models (LLMs), for medical…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Arghavan Rezvani , Xiangyi Yan , Anthony T. Wu , Kun Han , Pooya Khosravi , Xiaohui Xie

Decoding language from neural signals holds considerable theoretical and practical importance. Previous research has indicated the feasibility of decoding text or speech from invasive neural signals. However, when using non-invasive neural…

人机交互 · 计算机科学 2023-09-15 Bo Wang , Xiran Xu , Longxiang Zhang , Boda Xiao , Xihong Wu , Jing Chen

Understanding the neural mechanisms behind auditory and linguistic processing is key to advancing cognitive neuroscience. In this study, we use Magnetoencephalography (MEG) data to analyze brain responses to spoken language stimuli. We…

神经元与认知 · 定量生物学 2025-01-08 Matteo Ciferri , Matteo Ferrante , Nicola Toschi

Understanding how spontaneous brain activity relates to stimulus-driven neural responses is a fundamental challenge in cognitive neuroscience. While task-based functional magnetic resonance imaging (fMRI) captures localized stimulus-evoked…

神经元与认知 · 定量生物学 2025-09-18 Chuyang Zhou , Ziao Ji , Daochang Liu , Dongang Wang , Chenyu Wang , Chang Xu

Word embeddings are one of the most useful tools in any modern natural language processing expert's toolkit. They contain various types of information about each word which makes them the best way to represent the terms in any NLP task. But…

计算与语言 · 计算机科学 2019-06-20 Armin Seyeditabari , Narges Tabari , Shafie Gholizade , Wlodek Zadrozny