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A significant number of studies apply acoustic and linguistic characteristics of human speech as prominent markers of dementia and depression. However, studies on discriminating depression from dementia are rare. Co-morbid depression is…

计算与语言 · 计算机科学 2022-10-10 Malikeh Ehghaghi , Frank Rudzicz , Jekaterina Novikova

Topic modeling is used for discovering latent semantic structure, usually referred to as topics, in a large collection of documents. The most widely used methods are Latent Dirichlet Allocation and Probabilistic Latent Semantic Analysis.…

计算与语言 · 计算机科学 2020-08-24 Dimo Angelov

End-to-end acoustic-to-word speech recognition models have recently gained popularity because they are easy to train, scale well to large amounts of training data, and do not require a lexicon. In addition, word models may also be easier to…

计算与语言 · 计算机科学 2019-02-20 Shruti Palaskar , Vikas Raunak , Florian Metze

We propose Diverse Embedding Neural Network (DENN), a novel architecture for language models (LMs). A DENNLM projects the input word history vector onto multiple diverse low-dimensional sub-spaces instead of a single higher-dimensional…

计算与语言 · 计算机科学 2015-04-17 Kartik Audhkhasi , Abhinav Sethy , Bhuvana Ramabhadran

Most of medical developments require the ability to identify samples that are anomalous with respect to a target group or control group, in the sense they could belong to a new, previously unseen class or are not class data. In this case…

Alzheimer's disease (AD) has become a prevalent neurodegenerative disease worldwide. Traditional diagnosis still relies heavily on medical imaging and clinical assessment by physicians, which is often time-consuming and resource-intensive…

计算与语言 · 计算机科学 2026-02-17 Tongze Zhang , Jun-En Ding , Melik Ozolcer , Fang-Ming Hung , Albert Chih-Chieh Yang , Feng Liu , Yi-Rou Ji , Sang Won Bae

Whisper fails to correctly transcribe dementia speech because persons with dementia (PwDs) often exhibit irregular speech patterns and disfluencies such as pauses, repetitions, and fragmented sentences. It was trained on standard speech and…

音频与语音处理 · 电气工程与系统科学 2025-05-29 Emmanuel Akinrintoyo , Nadine Abdelhalim , Nicole Salomons

Deep learning has been successful in predicting neurodegenerative disorders, such as Alzheimer's disease, from magnetic resonance imaging (MRI). Combining multiple imaging modalities, such as T1-weighted (T1) and diffusion-weighted imaging…

Robust strategies for Alzheimer's disease (AD) detection are important, given the high prevalence of AD. In this paper, we study the performance and generalizability of three approaches for AD detection from speech on the recent ADReSSo…

计算与语言 · 计算机科学 2022-09-16 Aparna Balagopalan , Jekaterina Novikova

Dementia is a progressive cognitive syndrome with Alzheimer's disease (AD) as the leading cause. Conversation-based AD detection offers a cost-effective alternative to clinical methods, as language dysfunction is an early biomarker of AD.…

计算与语言 · 计算机科学 2025-02-27 Arezo Shakeri , Mina Farmanbar , Krisztian Balog

Dialogue act recognition is an important component of a large number of natural language processing pipelines. Many research works have been carried out in this area, but relatively few investigate deep neural networks and word embeddings.…

计算与语言 · 计算机科学 2020-10-23 Christophe Cerisara , Pavel Kral , Ladislav Lenc

We propose a novel framework for integrating fragmented multi-modal data in Alzheimer's disease (AD) research using large language models (LLMs) and knowledge graphs. While traditional multimodal analysis requires matched patient IDs across…

机器学习 · 计算机科学 2025-08-19 Kanan Kiguchi , Yunhao Tu , Katsuhiro Ajito , Fady Alnajjar , Kazuyuki Murase

Language is a valuable source of clinical information in Alzheimer's Disease, as it declines concurrently with neurodegeneration. Consequently, speech and language data have been extensively studied in connection with its diagnosis. This…

人工智能 · 计算机科学 2020-10-14 Sofia de la Fuente Garcia , Craig Ritchie , Saturnino Luz

Several machine learning algorithms have been developed for the prediction of Alzheimer's disease and related dementia (ADRD) from spontaneous speech. However, none of these algorithms have been translated for the prediction of broader…

Sequence labeling architectures use word embeddings for capturing similarity, but suffer when handling previously unseen or rare words. We investigate character-level extensions to such models and propose a novel architecture for combining…

计算与语言 · 计算机科学 2016-11-15 Marek Rei , Gamal K. O. Crichton , Sampo Pyysalo

Automated diagnosis of Alzheimer Disease(AD) from brain imaging, such as magnetic resonance imaging (MRI), has become increasingly important and has attracted the community to contribute many deep learning methods. However, many of these…

图像与视频处理 · 电气工程与系统科学 2024-03-01 Yifeng Wang , Ke Chen , Haohan Wang

In recent years, machine learning has been widely adopted to automate the audio mixing process. Automatic mixing systems have been applied to various audio effects such as gain-adjustment, equalization, and reverberation. These systems can…

声音 · 计算机科学 2022-09-21 Satvik Venkatesh , David Moffat , Eduardo Reck Miranda

By illuminating latent structures in a corpus of text, topic models are an essential tool for categorizing, summarizing, and exploring large collections of documents. Probabilistic topic models, such as latent Dirichlet allocation (LDA),…

信息检索 · 计算机科学 2021-12-07 Bahareh Harandizadeh , J. Hunter Priniski , Fred Morstatter

Compared to other clinical screening techniques, speech-and-language-based automated Alzheimer's disease (AD) detection methods are characterized by their non-invasiveness, cost-effectiveness, and convenience. Previous studies have…

音频与语音处理 · 电气工程与系统科学 2024-12-10 Yin-Long Liu , Rui Feng , Jia-Hong Yuan , Zhen-Hua Ling

Speech contains information that is clinically relevant to some diseases, which has the potential to be used for health assessment. Recent work shows an interest in applying deep learning algorithms, especially pretrained large speech…

声音 · 计算机科学 2024-07-02 Hok-Shing Lau , Mark Huntly , Nathon Morgan , Adesua Iyenoma , Biao Zeng , Tim Bashford