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- research-articleJune 2024
Diffusion-Based Unsupervised Pre-training for Automated Recognition of Vitality Forms
- Noemi Canovi,
- Federico Montagna,
- Radoslaw Niewiadomski,
- Alessandra Sciutti,
- Giuseppe Di Cesare,
- Cigdem Beyan
AVI '24: Proceedings of the 2024 International Conference on Advanced Visual InterfacesJune 2024, Article No.: 34, Pages 1–9https://doi.org/10.1145/3656650.3656689Social communication involves interpreting nonverbal behaviors, detecting and anticipating others’ actions and intentions. Actions convey not only the goal and motor intention but also the form, i.e., variations in action execution. These variations, ...
- research-articleAugust 2024
Community detection of trajectory data for location-based facility recommendation system
International Journal of Information and Communication Technology (IJICT), Volume 25, Issue 22024, Pages 101–117https://doi.org/10.1504/ijict.2024.140304Trajectory contains spatial-data generated from traces of moving objects like people, animals, etc. Community generated from trajectories portrays common behaviour. Trajectory clustering based on community-detection involves region-graph generation and ...
- short-paperNovember 2023
Estimating future human trajectories from sparse time series data
HuMob-Challenge '23: Proceedings of the 1st International Workshop on the Human Mobility Prediction ChallengeNovember 2023, Pages 26–31https://doi.org/10.1145/3615894.3628500In this paper, we address the Human Mobility Prediction Challenge (HuMob Challenge) 2023, focusing on the prediction of human mobility patterns using sparse datasets, a prevalent challenge impacting urban planning, disaster risk management, and ...
- posterOctober 2023
Poster: Vehicle-to-Infrastructure Security for Reduced Speed Work Zone
MobiHoc '23: Proceedings of the Twenty-fourth International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile ComputingOctober 2023, Pages 571–573https://doi.org/10.1145/3565287.3617980We consider the cybersecurity challenges arising from communications between autonomous vehicles and smart infrastructures. In particular, we consider coordination between vehicles and Reduced Speed Work Zones (RSWZ). Malicious or tampered ...
- research-articleAugust 2023
A Design of Activity-Based Mobility Intervention
SSTD '23: Proceedings of the 18th International Symposium on Spatial and Temporal DataAugust 2023, Pages 131–140https://doi.org/10.1145/3609956.3609970Human mobility influences our society and vice versa. During the COVID-19 pandemic, non-pharmaceutical intervention that alters activity-based mobility such as work-from-home greatly impacted human mobility patterns. Many studies on developing ...
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- research-articleApril 2023
Tweet Trajectory and AMPS-based Contextual Cues can Help Users Identify Misinformation
- Himanshu Zade,
- Megan Woodruff,
- Erika Johnson,
- Mariah Stanley,
- Zhennan Zhou,
- Minh Tu Huynh,
- Alissa Elizabeth Acheson,
- Gary Hsieh,
- Kate Starbird
Proceedings of the ACM on Human-Computer Interaction (PACMHCI), Volume 7, Issue CSCW1Article No.: 103, Pages 1–27https://doi.org/10.1145/3579536Well-intentioned users sometimes enable the spread of misinformation due to limited context about where the information originated and/or why it is spreading. Building upon recommendations based on prior research about tackling misinformation, we explore ...
- research-articleMarch 2023
Thrust Control for Aircraft Landing on a Carrier
Automation and Remote Control (ARCO), Volume 84, Issue 3Mar 2023, Pages 294–304https://doi.org/10.1134/S0005117923030098AbstractThis paper considers aircraft landing on a carrier. We propose two schemes for calculating, first, the probability of a go-around due to disengaging the arresting gear and, second, the maximum descent of the aircraft’s trajectory with respect to ...
- research-articleJanuary 2023
A method of designing swinging-leg walking trajectory for biped robot on plat ground
International Journal of Computing Science and Mathematics (IJCSM), Volume 17, Issue 12023, Pages 28–38https://doi.org/10.1504/ijcsm.2023.130425The periodic walking of biped robot involves the alternate movement of supporting leg and swinging leg. In order to quickly plan the gait, it is necessary to select the key posture of biped walking on the premise of maintaining the stability of the robot. ...
- research-articleJanuary 2023
Fuzzy logic-based delay efficient data collection technique for IoT environment
International Journal of Communication Networks and Distributed Systems (IJCNDS), Volume 29, Issue 62023, Pages 653–678https://doi.org/10.1504/ijcnds.2023.133902The sensor nodes in WSNs are resource constraints and data collection is draining the sensor node's energy. Therefore, collecting data in a single hop by the mobile device helps in preserving the sensor node energy. This paper is introducing a fuzzy logic-...
- surveyNovember 2022
A Survey on Spatio-temporal Data Analytics Systems
ACM Computing Surveys (CSUR), Volume 54, Issue 10sArticle No.: 219, Pages 1–38https://doi.org/10.1145/3507904Due to the surge of spatio-temporal data volume, the popularity of location-based services and applications, and the importance of extracted knowledge from spatio-temporal data to solve a wide range of real-world problems, a plethora of research and ...
- posterNovember 2022
High-accuracy GNSS localization with low-cost
SIGSPATIAL '22: Proceedings of the 30th International Conference on Advances in Geographic Information SystemsNovember 2022, Article No.: 95, Pages 1–4https://doi.org/10.1145/3557915.3561031Sub-meter accurate vehicle localization is often the ultimate goal in the automotive industry as well as fleet management today and the Global Navigation Satellite System (GNSS) is one of the most practical ways to achieve this goal. In addition to ...
- demonstrationNovember 2022
Efficient network-constrained trajectory queries
SIGSPATIAL '22: Proceedings of the 30th International Conference on Advances in Geographic Information SystemsNovember 2022, Article No.: 92, Pages 1–4https://doi.org/10.1145/3557915.3561028The large search companies have very clearly shown that full-text search on very large datasets can be executed efficiently. In this paper, we show how querying spatio-temporal trajectory data can be converted to a full-text search problem. This allows ...
- research-articleNovember 2022Best Paper
Maximum entropy bridgelets for trajectory completion
SIGSPATIAL '22: Proceedings of the 30th International Conference on Advances in Geographic Information SystemsNovember 2022, Article No.: 79, Pages 1–8https://doi.org/10.1145/3557915.3561015Location measurements from people and vehicles often have long temporal gaps between them. However, we would still like to reason about location behavior during these gaps. This paper presents a new method for filling these gaps that is both principled ...
- posterNovember 2022
Generating community road network from GPS trajectories via style transfer
SIGSPATIAL '22: Proceedings of the 30th International Conference on Advances in Geographic Information SystemsNovember 2022, Article No.: 24, Pages 1–4https://doi.org/10.1145/3557915.3560958Road network generation from massive trajectories has mainly focused on the mining of urban arterial roads while the demand for refined road networks in communities full of low-grade roads is increasing. Trajectory GPS signals in communities tend to be ...
- research-articleOctober 2022
Jointly Contrastive Representation Learning on Road Network and Trajectory
CIKM '22: Proceedings of the 31st ACM International Conference on Information & Knowledge ManagementOctober 2022, Pages 1501–1510https://doi.org/10.1145/3511808.3557370Road network and trajectory representation learning are essential for traffic systems since the learned representation can be directly used in various downstream tasks (e.g., traffic speed inference, travel time estimation). However, most existing ...
- research-articleOctober 2022
Aries: Accurate Metric-based Representation Learning for Fast Top-k Trajectory Similarity Query
CIKM '22: Proceedings of the 31st ACM International Conference on Information & Knowledge ManagementOctober 2022, Pages 499–508https://doi.org/10.1145/3511808.3557239With the prevalence of location-based services (LBS), trajectories are being generated rapidly. As is widely used in LBS, top-k trajectory similarity query serves as a key operation, deeply empowering applications such as travel route recommendation and ...
- research-articleOctober 2022
Experiments and Analyses of Anonymization Mechanisms for Trajectory Data Publishing
Journal of Computer Science and Technology (JCST), Volume 37, Issue 5Oct 2022, Pages 1026–1048https://doi.org/10.1007/s11390-022-2409-xAbstractWith the advancing of location-detection technologies and the increasing popularity of mobile phones and other location-aware devices, trajectory data is continuously growing. While large-scale trajectories provide opportunities for various ...
- research-articleSeptember 2022
Exploring the tidal effect of urban business district with large-scale human mobility data
Frontiers of Computer Science: Selected Publications from Chinese Universities (FCS), Volume 17, Issue 3Jun 2023https://doi.org/10.1007/s11704-022-1623-6AbstractBusiness districts are urban areas that have various functions for gathering people, such as work, consumption, leisure and entertainment. Due to the dynamic nature of business activities, there exists significant tidal effect on the boundary and ...
- keynoteAugust 2022
Digitalization in the Service of Society: The Case of Big Vehicle Trajectory Data
SSDBM '22: Proceedings of the 34th International Conference on Scientific and Statistical Database ManagementJuly 2022, Article No.: 26, Page 1https://doi.org/10.1145/3538712.3543822The ongoing, sweeping digitalization of societal processes generates massive volumes of data that capture the underlying processes at an unprecedented level of detail, in turn enabling us to better understand and improve those processes. Put ...
- research-articleJune 2022
An Augmented UCAL Model for Predicting Trajectory and Location
Cybernetics and Information Technologies (CYBAIT), Volume 22, Issue 2Jun 2022, Pages 114–124https://doi.org/10.2478/cait-2022-0020AbstractPredicting human mobility between locations plays an important role in a wide range of applications and services such as transportation, economics, sociology and other fields. Mobility prediction can be implemented through various machine learning ...