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With the pervasive use of smartphones that sense, collect, and process valuable information about the environment, ensuring location privacy has become one of the most important concerns in the modern age. A few recent research studies…

密码学与安全 · 计算机科学 2018-02-06 Arsalan Mosenia , Xiaoliang Dai , Prateek Mittal , Niraj Jha

Wandering is a problematic behavior in people with dementia that can lead to dangerous situations. To alleviate this problem we design an approach for the real-time automatic detection of wandering leading to getting lost. The approach…

The widespread adoption of continuously connected smartphones and tablets developed the usage of mobile applications, among which many use location to provide geolocated services. These services provide new prospects for users: getting…

密码学与安全 · 计算机科学 2018-10-09 Primault Vincent , Boutet Antoine , Ben Mokhtar Sonia , Brunie Lionel

Interactive digital maps have revolutionized how people travel and learn about the world; however, they rely on pre-existing structured data in GIS databases (e.g., road networks, POI indices), limiting their ability to address geo-visual…

Videos clips became the most important and prominent multimedia document to illustrate the rituals process of Hajj and Umrah. Therefore, it is necessary to develop a system to facilitate access to information related to the duties, the…

多媒体 · 计算机科学 2019-04-19 Mohamed Hamroun , Sonia Lajmi

Wayfinding signs play an important role in guiding users to navigate in a virtual environment and in helping pedestrians to find their ways in a real-world architectural site. Conventionally, the wayfinding design of a virtual environment…

To overcome the travelling difficulty for the visually impaired group, this paper presents a novel ETA (Electronic Travel Aids)-smart guiding device in the shape of a pair of eyeglasses for giving these people guidance efficiently and…

人机交互 · 计算机科学 2017-09-28 Jinqiang Bai , Shiguo Lian , Zhaoxiang Liu , Kai Wang , Dijun Liu

The main aim of the work presented here is to contribute to computer science advances in the multimodal usability area, in-as-much as it addresses one of the major issues relating to the generation of effective oral system messages: how to…

人机交互 · 计算机科学 2007-08-28 Suzanne Kieffer , Noëlle Carbonell

Recommendation based on user preferences is a common task for e-commerce websites. New recommendation algorithms are often evaluated by offline comparison to baseline algorithms such as recommending random or the most popular items. Here,…

Pilgrimage represents the most important Islamic religious gathering in the world where millions of pilgrims visit the holy places of Makkah and Madinah to perform their rituals. The safety and security of pilgrims is the highest priority…

计算机视觉与模式识别 · 计算机科学 2020-02-20 Marwa Ben Jabra , Adel Ammar , Anis Koubaa , Omar Cheikhrouhou , Habib Hamam

Users install many apps on their smartphones, raising issues related to information overload for users and resource management for devices. Moreover, the recent increase in the use of personal assistants has made mobile devices even more…

信息检索 · 计算机科学 2021-01-12 Mohammad Aliannejadi , Hamed Zamani , Fabio Crestani , W. Bruce Croft

Current exploration methods struggle to search for shops or restaurants in unknown open-world environments due to the lack of prior knowledge. Humans can leverage venue maps that offer valuable scene priors to aid exploration planning by…

机器人学 · 计算机科学 2025-03-04 Chang Chen , Liang Lu , Lei Yang , Yinqiang Zhang , Yizhou Chen , Ruixing Jia , Jia Pan

Vision based localization is the problem of inferring the pose of the camera given a single image. One solution to this problem is to learn a deep neural network to infer the pose of a query image after learning on a dataset of images with…

机器学习 · 计算机科学 2019-11-11 Carlos Lassance , Yasir Latif , Ravi Garg , Vincent Gripon , Ian Reid

It's important to monitor road issues such as bumps and potholes to enhance safety and improve road conditions. Smartphones are equipped with various built-in sensors that offer a cost-effective and straightforward way to assess road…

Localization of a wireless mobile device or a robot in indoor and GPS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional cameras and LIDAR-based alternative sensing and localization modalities…

机器人学 · 计算机科学 2022-01-14 Ehsan Latif , Ramviyas Parasuraman

Web search engines have long served as indispensable tools for information retrieval; user behavior and query formulation strategies have been well studied. The introduction of search engines powered by large language models (LLMs)…

信息检索 · 计算机科学 2024-01-19 Albatool Wazzan , Stephen MacNeil , Richard Souvenir

In transport modeling and prediction, trip purposes play an important role since mobility choices (e.g. modes, routes, departure times) are made in order to carry out specific activities. Activity based models, which have been gaining…

计算机与社会 · 计算机科学 2015-02-16 Youngsung Kim , Francisco C. Pereira , Fang Zhao , Ajinkya Ghorpade , P. Christopher Zegras , Moshe Ben-Akiva

Virtual globes have progressed from little-known technology to broadly popular software in a mere few years. We investigated this phenomenon through a survey and discovered that, while virtual globes are en vogue, their use is restricted to…

人机交互 · 计算机科学 2019-04-04 J. Schöning , B. Hecht , M. Raubal , A. Krüger , M. Marsh , M. Rohs

We present SGoLAM, short for simultaneous goal localization and mapping, which is a simple and efficient algorithm for Multi-Object Goal navigation. Given an agent equipped with an RGB-D camera and a GPS/Compass sensor, our objective is to…

计算机视觉与模式识别 · 计算机科学 2021-10-15 Junho Kim , Eun Sun Lee , Mingi Lee , Donsu Zhang , Young Min Kim

Images are a convenient way to specify which particular object instance an embodied agent should navigate to. Solving this task requires semantic visual reasoning and exploration of unknown environments. We present a system that can perform…