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A Demonstration of KAMEL: A Scalable BERT-based System for Trajectory Imputation

Published: 05 June 2023 Publication History

Abstract

This demo presents KAMEL; a novel trajectory imputation framework that aims to impute sparse trajectories as a means of increasing their accuracy, and hence the accuracy of their applications. Unlike the large majority of current trajectory imputation techniques, KAMEL does not require the knowledge or the availability of the underlying road network, which makes it applicable to important applications like map inference that need to infer the road network itself. Audience will experience KAMEL through various scenarios that show the imputation accuracy as well as KAMEL internals.

Supplemental Material

MP4 File
This demo presents KAMEL; a novel trajectory imputation framework that aims to impute sparse trajectories as a means of increasing their accuracy, and hence the accuracy of their applications. Unlike the large majority of current trajectory imputation techniques, KAMEL does not require the knowledge or the availability of the underlying road network, which makes it applicable to important applications like map inference that need to infer the road network itself. Audience will experience KAMEL through various scenarios that show the imputation accuracy as well as KAMEL internals.

References

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S. Abbar, M. Alizadeh, F. Bastani, S. Chawla, S. He, H. Balakrishnan, and S. Madden. The Science of Algorithmic Map Inference (Tutorial). In KDD, 2018.
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S. Brakatsoulas, D. Pfoser, R. Salas, and C. Wenk. On Map-Matching Vehicle Tracking Data. In VLDB, 2005.
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I. Brodsky. H3: Uber's Hexagonal Hierarchical Spatial Index. https://eng.uber.com/h3/.
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J. Devlin, M. Chang, K. Lee, and K. Toutanova. BERT: Pre-training of Deep Bidirectional Transformers for Language Understanding. CoRR, abs/1810.04805, 2018.
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M. M. Elshrif, K. Isufaj, and M. F. Mokbel. Network-less trajectory imputation. In SIGSPATIAL, 2022.
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Y. Li, Y. Li, D. Gunopulos, and L. J. Guibas. Knowledge-based Trajectory Completion from Sparse GPS Samples. In SIGSPATIAL, 2016.
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Mapillary. Unveiling the Mapping in Logistics Report: The Impact of Broken Maps on Last-Mile Deliveries. https://blog.mapillary.com/update/2020/02/14/mapping-in-logistics.html.
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Discover New Roads with Bing Maps. https://blogs.bing.com/maps/2022--12/Bing-Maps-is-bringing-new-roads/.
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M. Musleh, S. Abbar, R. Stanojevic, and M. F. Mokbel. QARTA: An ML-based System for Accurate Map Services. PVLDB, 14(11), 2021.
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M. Musleh and M. F. Mokbel. RASED: A Scalable Dashboard for Monitoring Road Network Updates in OSM. In MDM, 2022.
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M. Musleh, M. F. Mokbel, and S. Abbar. Let's Speak Trajectories. In SIGSPATIAL, pages 37:1--37:4, Seattle, WA, USA, Nov. 2022.
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Taxi Service Trajectory. Prediction Challenge. ECML PKDD 2015. http://www.geolink.pt/ecmlpkdd2015-challenge/dataset.html.
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S. Ruan, C. Long, J. Bao, C. Li, Z. Yu, R. Li, Y. Liang, T. He, and Y. Zheng. Learning to Generate Maps from Trajectories. In AAAI, 2020.
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Traffic Technology Today. Poor maps costing delivery companies US $6bn annually. https://www.traffictechnologytoday.com/news/mapping/poor-maps-costing-delivery-companies-us6bn-annually.html.
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K. Zheng, Y. Zheng, X. Xie, and X. Zhou. Reducing Uncertainty of Low-Sampling- Rate Trajectories. In ICDE, 2012.

Cited By

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  • (2024)Let's Speak Trajectories: A Vision to Use NLP Models for Trajectory Analysis TasksACM Transactions on Spatial Algorithms and Systems10.1145/365647010:2(1-25)Online publication date: 1-Jul-2024
  • (2024)Effective Trajectory Imputation using Simple Probabilistic Language Models2024 25th IEEE International Conference on Mobile Data Management (MDM)10.1109/MDM61037.2024.00027(51-60)Online publication date: 24-Jun-2024
  • (2024)Pre-trained Transformer Uncovers Meaningful Patterns in Human Mobility Data2024 IEEE International Conference on Big Data (BigData)10.1109/BigData62323.2024.10825246(5819-5828)Online publication date: 15-Dec-2024
  • Show More Cited By

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cover image ACM Conferences
SIGMOD '23: Companion of the 2023 International Conference on Management of Data
June 2023
330 pages
ISBN:9781450395076
DOI:10.1145/3555041
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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Publication History

Published: 05 June 2023

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Author Tags

  1. trajectory BERT
  2. trajectory NLP
  3. trajectory imputation

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This demo presents KAMEL; a novel trajectory imputation framework that aims to impute sparse trajectories as a means of increasing their accuracy, and hence the accuracy of their applications. Unlike the large majority of current trajectory imputation techniques, KAMEL does not require the knowledge or the availability of the underlying road network, which makes it applicable to important applications like map inference that need to infer the road network itself. Audience will experience KAMEL through various scenarios that show the imputation accuracy as well as KAMEL internals. https://dl.acm.org/doi/10.1145/3555041.3589733#23_01_SIGMOD_KAMEL_DEMO.mp4

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Overall Acceptance Rate 785 of 4,003 submissions, 20%

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Cited By

View all
  • (2024)Let's Speak Trajectories: A Vision to Use NLP Models for Trajectory Analysis TasksACM Transactions on Spatial Algorithms and Systems10.1145/365647010:2(1-25)Online publication date: 1-Jul-2024
  • (2024)Effective Trajectory Imputation using Simple Probabilistic Language Models2024 25th IEEE International Conference on Mobile Data Management (MDM)10.1109/MDM61037.2024.00027(51-60)Online publication date: 24-Jun-2024
  • (2024)Pre-trained Transformer Uncovers Meaningful Patterns in Human Mobility Data2024 IEEE International Conference on Big Data (BigData)10.1109/BigData62323.2024.10825246(5819-5828)Online publication date: 15-Dec-2024
  • (2023)Trajectory-BERT: Trajectory Estimation Based on BERT Trajectory Pre-Training Model and Particle Filter AlgorithmSensors10.3390/s2322912023:22(9120)Online publication date: 11-Nov-2023
  • (2023)Kamel: A Scalable BERT-Based System for Trajectory ImputationProceedings of the VLDB Endowment10.14778/3632093.363211317:3(525-538)Online publication date: 1-Nov-2023
  • (2023)Towards A Foundation Model For Trajectory Intelligence2023 IEEE International Conference on Data Mining Workshops (ICDMW)10.1109/ICDMW60847.2023.00112(832-835)Online publication date: 4-Dec-2023

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