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The ever-growing number of people using Twitter makes it a valuable source of timely information. However, detecting events in Twitter is a difficult task, because tweets that report interesting events are overwhelmed by a large volume of…

Social and Information Networks · Computer Science 2015-05-22 Adrien Guille , Cecile Favre

Annotating text data for event information extraction systems is hard, expensive, and error-prone. We investigate the feasibility of integrating coarse-grained data (document or sentence labels), which is far more feasible to obtain,…

Computation and Language · Computer Science 2022-05-12 Osman Mutlu

Remote monitoring of motor functions is a powerful approach for health assessment, especially among the elderly population or among subjects affected by pathologies that negatively impact their walking capabilities. This is further…

Signal Processing · Electrical Eng. & Systems 2022-05-18 Antonio Bevilacqua , Lisa Alcock , Brian Caulfield , Eran Gazit , Clint Hansen , Neil Ireson , Georgiana Ifrim

Passive tracking methods, such as phone and wearable sensing, have become dominant in monitoring human behaviors in modern ubiquitous computing studies. While there have been significant advances in machine-learning approaches to translate…

Human-Computer Interaction · Computer Science 2025-10-31 Jiachen Li , Xiwen Li , Justin Steinberg , Akshat Choube , Bingsheng Yao , Xuhai Xu , Dakuo Wang , Elizabeth Mynatt , Varun Mishra

In this work, we investigate the effectiveness of injecting external knowledge to a large language model (LLM) to identify semantic plausibility of simple events. Specifically, we enhance the LLM with fine-grained entity types, event types…

Computation and Language · Computer Science 2024-09-02 Chong Shen , Chenyue Zhou

We investigate attention as the active pursuit of useful information. This contrasts with attention as a mechanism for the attenuation of irrelevant information. We also consider the role of short-term memory, whose use is critical to any…

Machine Learning · Computer Science 2015-11-02 Philip Bachman , David Krueger , Doina Precup

Event cameras encode visual information with high temporal precision, low data-rate, and high-dynamic range. Thanks to these characteristics, event cameras are particularly suited for scenarios with high motion, challenging lighting…

Computer Vision and Pattern Recognition · Computer Science 2020-12-10 Etienne Perot , Pierre de Tournemire , Davide Nitti , Jonathan Masci , Amos Sironi

Many hallmarks of human intelligence, such as generalizing from limited experience, abstract reasoning and planning, analogical reasoning, creative problem solving, and capacity for language require the ability to consolidate experience…

Artificial Intelligence · Computer Science 2018-11-07 Igor Mordatch

This paper presents a technique which exploits the occurrence of certain events as observed by different sensors, to detect and classify objects. This technique explores the extent of dependence between features being observed by the…

Signal Processing · Electrical Eng. & Systems 2021-03-08 Siddharth Roheda , Hamid Krim , Zhi-Quan Luo , Tianfu Wu

The use of sensors available through smart devices has pervaded everyday life in several applications including human activity monitoring, healthcare, and social networks. In this study, we focus on the use of smartwatch accelerometer…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Chrisogonas O. Odhiambo , Sanjoy Saha , Corby K. Martin , Homayoun Valafar

Accurately recognizing human context from smartphone sensor data remains a significant challenge, especially in sedentary settings where activities such as studying, attending lectures, relaxing, and eating exhibit highly similar inertial…

Signal Processing · Electrical Eng. & Systems 2025-12-03 Aditya Sneh , Nilesh Kumar Sahu , Snehil Gupta , Haroon R. Lone

Generative document retrieval, an emerging paradigm in information retrieval, learns to build connections between documents and identifiers within a single model, garnering significant attention. However, there are still two challenges: (1)…

Information Retrieval · Computer Science 2024-05-14 Yong Guan , Dingxiao Liu , Jinchen Ma , Hao Peng , Xiaozhi Wang , Lei Hou , Ru Li

With the increasing number of IoT devices, there is a growing demand for energy-free sensors. Human activity recognition holds immense value in numerous daily healthcare applications. However, the majority of current sensing modalities…

Signal Processing · Electrical Eng. & Systems 2023-08-11 Kaede Shintani , Hamada Rizk , Hirozumi Yamaguchi

Human decision-making heavily relies on active sensing, a well-documented cognitive behaviour for evidence gathering to accommodate ever-changing environments. However, its operational mechanism in the real world remains non-trivial.…

Artificial Intelligence · Computer Science 2026-01-09 Hongliang Lu , Yunmeng Liu , Junjie Yang

Every day, billions of mobile network events (i.e. CDRs) are generated by cellular phone operator companies. Latent in this data are inspiring insights about human actions and behaviors, the discovery of which is important because…

Artificial Intelligence · Computer Science 2018-02-13 Zolzaya Dashdorj , Stanislav Sobolevsky , Luciano Serafini , Fabrizio Antonelli , Carlo Ratti

Human brain is continuously inundated with the multisensory information and their complex interactions coming from the outside world at any given moment. Such information is automatically analyzed by binding or segregating in our brain.…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Arda Senocak , Junsik Kim , Tae-Hyun Oh , Hyeonggon Ryu , Dingzeyu Li , In So Kweon

Eating habits are learned throughout the early stages of our lives. However, it is not easy to be aware of how our food-related routine affects our healthy living. In this work, we address the unsupervised discovery of nutritional habits…

Computer Vision and Pattern Recognition · Computer Science 2020-09-17 Estefania Talavera , Andreea Glavan , Alina Matei , Petia Radeva

People with color vision deficiency often face challenges in distinguishing colors such as red and green, which can complicate daily tasks and require the use of assistive tools or environmental adjustments. Current support tools mainly…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Shogo Morita , Yan Zhang , Takuto Yamauchi , Sinan Chen , Jialong Li , Kenji Tei

Detecting personal health mentions on social media is essential to complement existing health surveillance systems. However, annotating data for detecting health mentions at a large scale is a challenging task. This research employs a…

Computation and Language · Computer Science 2022-12-13 Olanrewaju Tahir Aduragba , Jialin Yu , Alexandra I. Cristea

Human beings have rich ways of emotional expressions, including facial action, voice, and natural languages. Due to the diversity and complexity of different individuals, the emotions expressed by various modalities may be semantically…

Artificial Intelligence · Computer Science 2023-02-06 Chuan Zhang , Daoxin Zhang , Ruixiu Zhang , Jiawei Li , Jianke Zhu