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Recently, the research of wireless sensing has achieved more intelligent results, and the intelligent sensing of human location and activity can be realized by means of WiFi devices. However, most of the current human environment perception…

Machine Learning · Computer Science 2019-03-14 Shangqing Liu , Yanchao Zhao , Fanggang Xue , Bing Chen , Xiang Chen

Crowdsourcing plays an essential role in the Internet of Things (IoT) for data collection, where a group of workers is equipped with Internet-connected geolocated devices to collect sensor data for marketing or research purpose. In this…

Cryptography and Security · Computer Science 2020-12-29 Mengmeng Yang , Ivan Tjuawinata , Kwok Yan Lam , Jun Zhao , Lin Sun

When exploring new areas, robotic systems generally exclusively plan and execute controls over geometry that has been directly measured. When entering space that was previously obstructed from view such as turning corners in hallways or…

Robotics · Computer Science 2024-03-19 Alec Reed , Brendan Crowe , Doncey Albin , Lorin Achey , Bradley Hayes , Christoffer Heckman

Crowd sensing is a new paradigm which leverages the pervasive smartphones to efficiently collect sensing data, enabling numerous novel applications. To achieve good service quality for a crowd sensing application, incentive mechanisms are…

Computer Science and Game Theory · Computer Science 2014-03-24 Jiajun Sun

Mobile on-body sensing has distinct advantages for the analysis and understanding of crowd dynamics: sensing is not geographically restricted to a specific instrumented area, mobile phones offer on-body sensing and they are already deployed…

Physics and Society · Physics 2011-09-09 Daniel Roggen , Martin Wirz , Gerhard Tröster , Dirk Helbing

Better understanding and modelling of building interiors and the emergence of more impressive AR/VR technology has brought up the need for automatic parsing of floorplan images. However, there is a clear lack of representative datasets to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Ahti Kalervo , Juha Ylioinas , Markus Häikiö , Antti Karhu , Juho Kannala

Reconstructing geometry and topology structures from raw unstructured data has always been an important research topic in indoor mapping research. In this paper, we aim to reconstruct the floorplan with a vectorized representation from…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Yuzhou Liu , Lingjie Zhu , Xiaodong Ma , Hanqiao Ye , Xiang Gao , Xianwei Zheng , Shuhan Shen

Flood is a natural phenomenon that causes severe environmental damage and destruction in smart cities. After a flood, topographic, geological, and living conditions change. As a result, the previous information regarding the environment is…

Computers and Society · Computer Science 2022-03-15 Sajedeh Abbasi , Hamed Vahdat-Nejad , Hamideh Hajiabadi

Real-time generation of natural-looking floor plans is vital in games with dynamic environments. This paper presents an algorithm to generate suburban house floor plans in real-time. The algorithm is based on the work presented in [1].…

Graphics · Computer Science 2012-11-27 Maysam Mirahmadi , Abdallah Shami

Wearable and IoT devices requiring positioning and localisation services grow in number exponentially every year. This rapid growth also produces millions of data entries that need to be pre-processed prior to being used in any indoor…

Signal Processing · Electrical Eng. & Systems 2022-11-29 Darwin Quezada-Gaibor , Lucie Klus , Joaquín Torres-Sospedra , Elena Simona Lohan , Jari Nurmi , Carlos Granell , Joaquín Huerta

People counting system in crowded places has become a very useful practical application that can be accomplished in various ways which include many traditional methods using sensors. Examining the case of real time scenarios, the algorithm…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Satyanarayana Penke , Gopikrishna Pavuluri , Soukhya Kunda , Satvik M , CharanKumar Y

Vertical localization, particularly floor separation, remains a major challenge in indoor positioning systems operating in GPS-denied multistory environments. This paper proposes a fully data-driven, graph-based framework for blind floor…

Networking and Internet Architecture · Computer Science 2026-02-03 Rabia Yasa Kostas , Kahraman Kostas

Pedestrian Indoor localization based on modalities available in modern smartphones have been widely studied in literature and many of the specific challenges have been addressed. However, very few approaches consider the whole problem and…

Signal Processing · Electrical Eng. & Systems 2024-05-01 Christophe Villien , Anne Frassati , Bruno Flament

Objective: This research explores using crowdsourcing for software usability evaluation. Background: Usability studies are essential for designing user-friendly software, but traditional methods are often costly and time-consuming.…

Software Engineering · Computer Science 2024-08-14 Muhammad Nasir

Many sensors/meters are deployed in commercial buildings to monitor and optimize their performance. However, because sensor metadata is inconsistent across buildings, software-based solutions are tightly coupled to the sensor metadata…

Machine Learning · Computer Science 2015-09-03 Dezhi Hong , Jorge Ortiz , Arka Bhattacharya , Kamin Whitehouse

Realtime crowdsourcing research has demonstrated that it is possible to recruit paid crowds within seconds by managing a small, fast-reacting worker pool. Realtime crowds enable crowd-powered systems that respond at interactive speeds: for…

Social and Information Networks · Computer Science 2012-04-16 Michael S. Bernstein , David R. Karger , Robert C. Miller , Joel Brandt

We present a novel learning-based collision avoidance algorithm, CrowdSteer, for mobile robots operating in dense and crowded environments. Our approach is end-to-end and uses multiple perception sensors such as a 2-D lidar along with a…

Robotics · Computer Science 2020-04-30 Jing Liang , Utsav Patel , Adarsh Jagan Sathyamoorthy , Dinesh Manocha

The aim of crowd counting is to estimate the number of people in images by leveraging the annotation of center positions for pedestrians' heads. Promising progresses have been made with the prevalence of deep Convolutional Neural Networks.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Zhi-Qi Cheng , Jun-Xiu Li , Qi Dai , Xiao Wu , Alexander Hauptmann

The simulation of the dynamical behavior of pedestrians and crowds in spatial structures is a consolidated research and application context that still presents challenges for researchers in different fields and disciplines. Despite…

Multiagent Systems · Computer Science 2016-08-18 Giuseppe Vizzari , Stefania Bandini

The paper proposes a multi-modal sensor fusion algorithm that fuses WiFi, IMU, and floorplan information to infer an accurate and dense location history in indoor environments. The algorithm uses 1) an inertial navigation algorithm to…

Robotics · Computer Science 2021-05-20 Sachini Herath , Saghar Irandoust , Bowen Chen , Yiming Qian , Pyojin Kim , Yasutaka Furukawa