[HTML][HTML] A LSTM-based approach for modelling the movement uncertainty of indoor trajectories with mobile sensing data

Z Liu, W Shi, Y Yu, P Chen, BY Chen - International Journal of Applied …, 2022 - Elsevier
Individuals' indoor trajectories can be reconstructed with sensing data for indoor navigation.
However, the movement uncertainty of such reconstructed indoor trajectories has seldom …

Spatial data quality in the Internet of Things: Management, exploitation, and prospects

H Li, H Lu, CS Jensen, B Tang… - ACM Computing Surveys …, 2022 - dl.acm.org
With the continued deployment of the Internet of Things (IoT), increasing volumes of devices
are being deployed that emit massive spatially referenced data. Due in part to the dynamic …

Indoor mapping and modeling by parsing floor plan images

Y Wu, J Shang, P Chen, S Zlatanova… - International Journal of …, 2021 - Taylor & Francis
ABSTRACT A large proportion of indoor spatial data is generated by parsing floor plans.
However, a mature and automatic solution for generating high-quality building elements (eg …

Towards crowd-aware indoor path planning (extended version)

T Liu, H Li, H Lu, MA Cheema, L Shou - arXiv preprint arXiv:2104.05480, 2021 - arxiv.org
Indoor venues accommodate many people who collectively form crowds. Such crowds in
turn influence people's routing choices, eg, people may prefer to avoid crowded rooms when …

Indoor top-k keyword-aware routing query

Z Feng, T Liu, H Li, H Lu, L Shou… - 2020 IEEE 36th …, 2020 - ieeexplore.ieee.org
People have many activities indoors and there is an increasing demand of keyword-aware
route planning for indoor venues. In this paper, we study the indoor top-k keyword-aware …

Mobile semantic-aware trajectory for personalized location privacy preservation

G Qiu, D Guo, Y Shen, G Tang… - IEEE Internet of Things …, 2020 - ieeexplore.ieee.org
Synthesizing a fake trajectory with consistent lifestyle and meaningful mobility as the actual
one is the most popular way to protect the location privacy in trajectory sharing. Recent …

Contact tracing over uncertain indoor positioning data

T Liu, H Li, H Lu, MA Cheema… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Pandemics often cause dramatic losses of human lives and impact our societies in many
aspects such as public health, tourism, and economy. To contain the spread of an epidemic …

Shortest path queries for indoor venues with temporal variations

T Liu, Z Feng, H Li, H Lu, MA Cheema… - 2020 IEEE 36th …, 2020 - ieeexplore.ieee.org
Indoor shortest path query (ISPQ) is of fundamental importance for indoor location-based
services (LBS). However, existing ISPQs ignore indoor temporal variations, eg, the open and …

DeepIndoorCrowd: Predicting crowd flow in indoor shopping malls with an interpretable transformer network

C Chu, H Zhang, P Wang, F Lu - Transactions in GIS, 2023 - Wiley Online Library
Accurate and interpretable prediction of crowd flow would benefit business management
and public security. The existing studies are challenged to adapt to the indoor environment …

Indoor mobility data encoding with TSTM-in: A topological-semantic trajectory model

J Qin, L Wang, T Wu, Y Li, L Xiang, Y Zhu - Computers, Environment and …, 2024 - Elsevier
The growing ubiquity of location/activity sensing technologies has created unprecedented
opportunities for research on human spatiotemporal interaction behavior in mobile …