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Alzheimer's dementia (AD) is a neurodegenerative disorder with cognitive decline that commonly impacts language ability. This work extends the paired perplexity approach to detecting AD by using a recent large language model (LLM), the…

Computation and Language · Computer Science 2025-06-12 Yao Xiao , Heidi Christensen , Stefan Goetze

While Large Language Models (LLMs) have shown strong performance on clinical text understanding, they struggle with longitudinal prediction tasks such as dementia prognosis, which require reasoning over complex, non-monotonic symptom…

Computation and Language · Computer Science 2026-03-23 Choonghan Kim , Hyunmin Hwang , Hangeol Chang , Jaemin Kim , Jinse Park , Jae-Sung Lim , Jong Chul Ye

Data augmentation is an inexpensive way to increase training data diversity and is commonly achieved via transformations of existing data. For tasks such as classification, there is a good case for learning representations of the data that…

Sound · Computer Science 2021-04-20 Turab Iqbal , Karim Helwani , Arvindh Krishnaswamy , Wenwu Wang

Background: The increasing availability of databases containing both magnetic resonance imaging (MRI) and genetic data allows researchers to utilize multimodal data to better understand the characteristics of dementia of Alzheimer's type…

The vast majority of modern speech enhancement systems rely on data-driven neural network models. Conventionally, larger datasets are presumed to yield superior model performance, an observation empirically validated across numerous tasks…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-20 Chenda Li , Wangyou Zhang , Wei Wang , Robin Scheibler , Kohei Saijo , Samuele Cornell , Yihui Fu , Marvin Sach , Zhaoheng Ni , Anurag Kumar , Tim Fingscheidt , Shinji Watanabe , Yanmin Qian

Alzheimer's disease (AD) is the most common age-related dementia. It remains a challenge to identify the individuals at risk of dementia for precise management. Brain MRI offers a noninvasive biomarker to detect brain aging. Previous…

Machine Learning · Computer Science 2021-07-26 Chao Li , Yiran Wei , Xi Chen , Carola-Bibiane Schonlieb

Traditional disease surveillance can be augmented with a wide variety of real-time sources such as, news and social media. However, these sources are in general unstructured and, construction of surveillance tools such as taxonomical…

Machine Learning · Computer Science 2016-06-07 Saurav Ghosh , Prithwish Chakraborty , Emily Cohn , John S. Brownstein , Naren Ramakrishnan

Alzheimer's Disease (AD) is nowadays the most common form of dementia, and its automatic detection can help to identify symptoms at early stages, so that preventive actions can be carried out. Moreover, non-intrusive techniques based on…

Computation and Language · Computer Science 2020-11-21 Mireia Farrús , Joan Codina-Filbà

In this paper, a data augmentation method is proposed for depression detection from speech signals. Samples for data augmentation were created by changing the frame-width and the frame-shift parameters during the feature extraction process.…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-15 Vijay Ravi , Jinhan Wang , Jonathan Flint , Abeer Alwan

The use of deep learning for radio modulation recognition has become prevalent in recent years. This approach automatically extracts high-dimensional features from large datasets, facilitating the accurate classification of modulation…

Machine Learning · Computer Science 2023-11-08 Tao Chen , Shilian Zheng , Kunfeng Qiu , Luxin Zhang , Qi Xuan , Xiaoniu Yang

Vision-Language Pre-training (VLP) is drawing increasing interest for its ability to minimize manual annotation requirements while enhancing semantic understanding in downstream tasks. However, its reliance on image-text datasets poses…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Sinuo Wang , Yutong Xie , Yuyuan Liu , Qi Wu

Text classification is a representative downstream task of natural language processing, and has exhibited excellent performance since the advent of pre-trained language models based on Transformer architecture. However, in pre-trained…

Computation and Language · Computer Science 2022-04-07 Byeong-Cheol Jo , Tak-Sung Heo , Yeongjoon Park , Yongmin Yoo , Won Ik Cho , Kyungsun Kim

Document-level neural machine translation (DocNMT) aims to generate translations that are both coherent and cohesive, in contrast to its sentence-level counterpart. However, due to its longer input length and limited availability of…

Computation and Language · Computer Science 2024-01-30 Minghao Wu , Yufei Wang , George Foster , Lizhen Qu , Gholamreza Haffari

Anxiety and depression are the most common mental health issues worldwide, affecting a non-negligible part of the population. Accordingly, stakeholders, including governments' health systems, are developing new strategies to promote early…

Artificial Intelligence · Computer Science 2024-12-24 Francisco de Arriba-Pérez , Silvia García-Méndez

Agitation is one of the most common responsive behaviors in people living with dementia, particularly among those residing in community settings without continuous clinical supervision. Timely prediction of agitation can enable early…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Ali Abedi , Charlene H. Chu , Shehroz S. Khan

Automated speaking assessment (ASA) on opinion expressions is often hampered by the scarcity of labeled recordings, which restricts prompt diversity and undermines scoring reliability. To address this challenge, we propose a novel training…

Computation and Language · Computer Science 2025-09-12 Chung-Chun Wang , Jhen-Ke Lin , Hao-Chien Lu , Hong-Yun Lin , Berlin Chen

Data augmentation, the artificial creation of training data for machine learning by transformations, is a widely studied research field across machine learning disciplines. While it is useful for increasing a model's generalization…

Computation and Language · Computer Science 2022-09-09 Markus Bayer , Marc-André Kaufhold , Christian Reuter

Dementia of Alzheimer's Type (DAT) is a complex disorder influenced by numerous factors, but it is unclear how each factor contributes to disease progression. An in-depth examination of these factors may yield an accurate estimate of…

Despite progress in deep learning for Alzheimer's disease (AD) diagnostics, models trained on structural magnetic resonance imaging (sMRI) often do not perform well when applied to new cohorts due to domain shifts from varying scanners,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Zobia Batool , Diala Lteif , Vijaya B. Kolachalama , Huseyin Ozkan , Erchan Aptoula

As an effective strategy, data augmentation (DA) alleviates data scarcity scenarios where deep learning techniques may fail. It is widely applied in computer vision then introduced to natural language processing and achieves improvements in…

Computation and Language · Computer Science 2022-06-28 Bohan Li , Yutai Hou , Wanxiang Che