2024
Efficient Cost Modeling of Space-filling Curves.
Proc. VLDB Endow., September, 2024
Fast, accurate and explainable time series classification through randomization.
Data Min. Knowl. Discov., 2024
Family Caregiver Experiences of Using a Mobile App for Music-based Training to Support Dementia Care.
Proceedings of the CHI Conference on Human Factors in Computing Systems, 2024
2023
An active foveated gaze prediction algorithm based on a Bayesian ideal observer.
Pattern Recognit., November, 2023
Ad-hoc platoon formation and dissolution strategies for multi-lane highways.
J. Intell. Transp. Syst., March, 2023
Efficient Cost Modeling of Space-filling Curves.
CoRR, 2023
Efficient Index Learning via Model Reuse and Fine-tuning.
Proceedings of the 39th IEEE International Conference on Data Engineering, ICDE 2023, 2023
Efficiently Learning Spatial Indices.
Proceedings of the 39th IEEE International Conference on Data Engineering, 2023
2022
An Online Unsupervised Dynamic Window Method to Track Repeating Patterns From Sensor Data.
IEEE Trans. Cybern., 2022
Shape-Sphere: A metric space for analysing time series by their shape.
Inf. Sci., 2022
Optimizing crowdsourced delivery routes through concurrent selection of pickup stores and drivers.
Proceedings of the 15th ACM SIGSPATIAL International Workshop on Computational Transportation Science, 2022
2021
Preserving Privacy in the Internet of Connected Vehicles.
IEEE Trans. Intell. Transp. Syst., 2021
A differentially private algorithm for range queries on trajectories.
Knowl. Inf. Syst., 2021
Fast, Accurate and Interpretable Time Series Classification Through Randomization.
CoRR, 2021
A Lazy Approach for Efficient Index Learning.
CoRR, 2021
A Transferable Technique for Detecting and Localising Segments of Repeating Patterns in Time series.
Proceedings of the International Joint Conference on Neural Networks, 2021
2020
Privacy- and Context-aware Release of Trajectory Data.
ACM Trans. Spatial Algorithms Syst., 2020
The Impact of Flexible Platoon Formation Operations.
IEEE Trans. Intell. Veh., 2020
Conference report: The 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPATIAL 2019): Chicago, Illinois, USA, November 5-8, 2019.
ACM SIGSPATIAL Special, 2020
Effectively Learning Spatial Indices.
Proc. VLDB Endow., 2020
Optimal route planning for stochastic time-dependent hitchhiker's problem.
J. Locat. Based Serv., 2020
TGM: A Generative Mechanism for Publishing Trajectories With Differential Privacy.
IEEE Internet Things J., 2020
PRESS: A personalised approach for mining top-k groups of objects with subspace similarity.
Data Knowl. Eng., 2020
GeoPrune: Efficiently Matching Trips in Ride-sharing Through Geometric Properties.
Proceedings of the SSDBM 2020: 32nd International Conference on Scientific and Statistical Database Management, 2020
Optimal visual search based on a model of target detectability in natural images.
Proceedings of the Advances in Neural Information Processing Systems 33: Annual Conference on Neural Information Processing Systems 2020, 2020
Fast and Accurate Time Series Classification Through Supervised Interval Search.
Proceedings of the 20th IEEE International Conference on Data Mining, 2020
Highly Efficient and Scalable Multi-hop Ride-sharing.
Proceedings of the SIGSPATIAL '20: 28th International Conference on Advances in Geographic Information Systems, 2020
2019
Protecting privacy for distance and rank based group nearest neighbor queries.
World Wide Web, 2019
Congestion-Aware Ride-Sharing.
ACM Trans. Spatial Algorithms Syst., 2019
Generating traffic data for any city using SMARTS simulator.
ACM SIGSPATIAL Special, 2019
An effective and versatile distance measure for spatiotemporal trajectories.
Data Min. Knowl. Discov., 2019
GeoPrune: Efficiently Finding Shareable Vehicles Based on Geometric Properties.
CoRR, 2019
Differentially Private Streaming to Untrusted Edge Servers in Intelligent Transportation System.
Proceedings of the 18th IEEE International Conference On Trust, 2019
Characteristics of Local Intrinsic Dimensionality (LID) in Subspaces: Local Neighbourhood Analysis.
Proceedings of the Similarity Search and Applications - 12th International Conference, 2019
LiftSmart: a monitoring and warning wearable for weight trainers.
Proceedings of the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2019 ACM International Symposium on Wearable Computers, 2019
Quantifying the Impact of Autonomous Vehicles using Microscopic Simulations.
Proceedings of the 12th ACM SIGSPATIAL International Workshop on Computational Transportation Science, 2019
2018
Efficient Computation of the Optimal Accessible Location for a Group of Mobile Agents.
ACM Trans. Spatial Algorithms Syst., 2018
Publishing spatial histograms under differential privacy.
Proceedings of the 30th International Conference on Scientific and Statistical Database Management, 2018
An Automated Matrix Profile for Mining Consecutive Repeats in Time Series.
Proceedings of the PRICAI 2018: Trends in Artificial Intelligence, 2018
Continuous Obstructed Detour Queries.
Proceedings of the 10th International Conference on Geographic Information Science, 2018
Studying transportation problems with the SMARTS simulator (demo paper).
Proceedings of the 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2018
Activity-based ride-sharing in action (demo paper).
Proceedings of the 26th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2018
Finding All Nearest Neighbors with a Single Graph Traversal.
Proceedings of the Database Systems for Advanced Applications, 2018
2017
Geosensor Networks, Formal Foundations.
Proceedings of the Encyclopedia of GIS., 2017
SMARTS: Scalable Microscopic Adaptive Road Traffic Simulator.
ACM Trans. Intell. Syst. Technol., 2017
Optimal Pick up Point Selection for Effective Ride Sharing.
IEEE Trans. Big Data, 2017
A Simulation Study of Emergency Vehicle Prioritization in Intelligent Transportation Systems.
Proceedings of the 85th IEEE Vehicular Technology Conference, 2017
Challenges of Differentially Private Release of Data Under an Open-world Assumption.
Proceedings of the 29th International Conference on Scientific and Statistical Database Management, 2017
A Fast and Accurate Index Structure for Spatiotemporal Trajectories.
Proceedings of the 14th EAI International Conference on Mobile and Ubiquitous Systems: Computing, 2017
From Ride-Sourcing to Ride-Sharing through Hot-Spots.
Proceedings of the 14th EAI International Conference on Mobile and Ubiquitous Systems: Computing, 2017
The Hitchhiker's Guide to the Optimal Route Planning.
Proceedings of the 18th IEEE International Conference on Mobile Data Management, 2017
Ride-sharing is About Agreeing on a Destination.
Proceedings of the 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2017
2016
Privacy-Aware Dynamic Ride Sharing.
ACM Trans. Spatial Algorithms Syst., 2016
Spatial Consensus Queries in a Collaborative Environment.
ACM Trans. Spatial Algorithms Syst., 2016
SleepExplorer: a visualization tool to make sense of correlations between personal sleep data and contextual factors.
Pers. Ubiquitous Comput., 2016
Group meetup in the presence of obstacles.
Inf. Syst., 2016
Detecting unseen anomalies in weight training exercises.
Proceedings of the 28th Australian Conference on Computer-Human Interaction, 2016
Real Time Autonomous Point of Interest Mining through Ambient Smartphone Sensing.
Proceedings of the 13th International Conference on Mobile and Ubiquitous Systems: Computing, 2016
Mining city-wide encounters in real-time.
Proceedings of the 24th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, GIS 2016, Burlingame, California, USA, October 31, 2016
Location privacy for group meetups.
Proceedings of the 24th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, GIS 2016, Burlingame, California, USA, October 31, 2016
On the effectiveness of removing location information from trajectory data for preserving location privacy.
Proceedings of the 9th ACM SIGSPATIAL International Workshop on Computational Transportation Science, 2016
Automatic Generation and Validation of Road Maps from GPS Trajectory Data Sets.
Proceedings of the 25th ACM International Conference on Information and Knowledge Management, 2016
Not For Me: Older Adults Choosing Not to Participate in a Social Isolation Intervention.
Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems, 2016
Trip Planning Queries for Subgroups in Spatial Databases.
Proceedings of the Databases Theory and Applications, 2016
2015
Automatically recognizing places of interest from unreliable GPS data using spatio-temporal density estimation and line intersections.
Pervasive Mob. Comput., 2015
Robust inferences of travel paths from GPS trajectories.
Int. J. Geogr. Inf. Sci., 2015
The CASE histogram: privacy-aware processing of trajectory data using aggregates.
GeoInformatica, 2015
Efficient mining of platoon patterns in trajectory databases.
Data Knowl. Eng., 2015
A Unified Framework for Authenticating Privacy Preserving Location Based Services.
Proceedings of the Second International ACM Workshop on Managing and Mining Enriched Geo-Spatial Data, 2015
Designing Intelligent Sleep Analysis Systems for Automated Contextual Exploration on Personal Sleep-Tracking Data.
Proceedings of the New Frontiers in Artificial Intelligence, 2015
How private can i be among public users?
Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing, 2015
Combining range-based and range-free methods: a unified approach for localization.
Proceedings of the 23rd SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2015
Trajectory inference for mobile devices using connected cell towers.
Proceedings of the 23rd SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2015
Optimal mobile facility localization.
Proceedings of the 23rd SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2015
Efficient Computation of Trips with Friends and Families.
Proceedings of the 24th ACM International Conference on Information and Knowledge Management, 2015
PrivacyPalisade: Evaluating app permissions and building privacy into smartphones.
Proceedings of the 10th International Conference on Information, 2015
2014
The min-dist location selection and facility replacement queries.
World Wide Web, 2014
GeoPrivacy 2014 workshop report: the First ACM SIGSPATIAL International Workshop on Privacy in Geographic Information Collection and Analysis, Dallas, Texas, USA - November 4, 2014.
ACM SIGSPATIAL Special, 2014
Exploring ambient technology for connecting hospitalised children with school and home.
Int. J. Hum. Comput. Stud., 2014
Protection of sensitive trajectory datasets through spatial and temporal exchange.
Proceedings of the Conference on Scientific and Statistical Database Management, 2014
Efficient Matching of Substrings in Uncertain Sequences.
Proceedings of the 2014 SIAM International Conference on Data Mining, 2014
Is this you?: identifying a mobile user using only diagnostic features.
Proceedings of the 13th International Conference on Mobile and Ubiquitous Multimedia, 2014
A context-aware do-not-disturb service for mobile devices.
Proceedings of the 13th International Conference on Mobile and Ubiquitous Multimedia, 2014
A simple localization system for ad-hoc indoor meetings through wireless connection points.
Proceedings of the 13th International Conference on Mobile and Ubiquitous Multimedia, 2014
Protecting mobile users from visual privacy attacks.
Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing, 2014
Location Oblivious Privacy Protection for Group Nearest Neighbor Queries.
Proceedings of the Geographic Information Science - 8th International Conference, 2014
Euler histogram tree: a spatial data structure for aggregate range queries on vehicle trajectories.
Proceedings of the IWCTS 2014, 2014
Group nearest neighbor queries in the presence of obstacles.
Proceedings of the 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2014
Spatio-temporal trajectory simplification for inferring travel paths.
Proceedings of the 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2014
Travel distance versus navigation complexity: a study on different spatial queries on road networks.
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, 2014
Tell Me What You Want and I Will Tell Others Where You Have Been.
Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, 2014
Captioned photographs in psychosocial aged care: relationship building and boundary work.
Proceedings of the CHI Conference on Human Factors in Computing Systems, 2014
An Authorised Pseudonym System for Privacy Preserving Location Proof Architectures.
Proceedings of the Twelfth Australasian Information Security Conference, 2014
2013
Countering overlapping rectangle privacy attack for moving kNN queries.
Inf. Syst., 2013
Opportunistic sampling-based query processing in wireless sensor networks.
GeoInformatica, 2013
Group Trip Planning Queries in Spatial Databases.
Proceedings of the Advances in Spatial and Temporal Databases, 2013
Proceedings of the Augmentation, Application, Innovation, Collaboration, OzCHI '13, Adelaide, Australia - November 25, 2013
A k-leader fuel-efficient traffic model.
Proceedings of the 2013 IEEE Intelligent Vehicles Symposium (IV), 2013
Optimal traffic merging strategy for communication- and sensor-enabled vehicles.
Proceedings of the 16th International IEEE Conference on Intelligent Transportation Systems, 2013
K-coverage in regular deterministic sensor deployments.
Proceedings of the 2013 IEEE Eighth International Conference on Intelligent Sensors, 2013
Mining Probabilistic Frequent Spatio-Temporal Sequential Patterns with Gap Constraints from Uncertain Databases.
Proceedings of the 2013 IEEE 13th International Conference on Data Mining, 2013
Protecting privacy for group nearest neighbor queries with crowdsourced data and computing.
Proceedings of the 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing, 2013
Older adults as digital content producers.
Proceedings of the 2013 ACM SIGCHI Conference on Human Factors in Computing Systems, 2013
2012
ISA 2011 Workshop Report: a report on the Third International Workshop on Indoor Spatial Awareness: (Chicago, Illinois - November 1, 2011).
ACM SIGSPATIAL Special, 2012
Gesture recognition using RFID technology.
Pers. Ubiquitous Comput., 2012
Actively engaging older adults in the development and evaluation of tablet technology.
Proceedings of the 24th Australian Computer-Human Interaction Conference, OzCHI '12, Melbourne, VIC, Australia - November 26, 2012
The Min-dist Location Selection Query.
Proceedings of the IEEE 28th International Conference on Data Engineering (ICDE 2012), 2012
Privacy aware trajectory determination in road traffic networks.
Proceedings of the SIGSPATIAL 2012 International Conference on Advances in Geographic Information Systems (formerly known as GIS), 2012
Extracting significant places from mobile user GPS trajectories: a bearing change based approach.
Proceedings of the SIGSPATIAL 2012 International Conference on Advances in Geographic Information Systems (formerly known as GIS), 2012
2011
"Don't trust anyone": Privacy protection for location-based services.
Pervasive Mob. Comput., 2011
Privacy-aware collection of aggregate spatial data.
Data Knowl. Eng., 2011
Privacy Preserving Moving KNN Queries
CoRR, 2011
On Optimal Arrangements of Binary Sensors.
Proceedings of the Spatial Information Theory - 10th International Conference, 2011
2010
Analysis and evaluation of V*-<i>k</i>NN: an efficient algorithm for moving <i>k</i>NN queries.
VLDB J., 2010
A motion-aware approach for efficient evaluation of continuous queries on 3D object databases.
VLDB J., 2010
Privacy-Aware Traffic Monitoring.
IEEE Trans. Intell. Transp. Syst., 2010
Spatial interpolation in wireless sensor networks: localized algorithms for variogram modeling and Kriging.
GeoInformatica, 2010
Social isolation of older people: the role of domestic technologies.
Proceedings of the 22nd Australasian Computer-Human Interaction Conference, 2010
SISSI '10: social interaction in spatially separated environments.
Proceedings of the UbiComp 2010: Ubiquitous Computing, 12th International Conference, 2010
Easiest-to-reach neighbor search.
Proceedings of the 18th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2010
Local network Voronoi diagrams.
Proceedings of the 18th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2010
Localization and interaction in active indoor environments.
Proceedings of the Indoor Spatial Awareness, 2010
Privacy preserving group nearest neighbor queries.
Proceedings of the EDBT 2010, 2010
2009
Optimizing query processing using selectivity-awareness in Wireless Sensor Networks.
Comput. Environ. Urban Syst., 2009
Privacy for real-time location-based services.
ACM SIGSPATIAL Special, 2009
Spatio-temporal database research at the University of Melbourne.
SIGMOD Rec., 2009
Decentralized Traffic Management Strategies for Sensor-Enabled Cars
CoRR, 2009
V*-kNN: An Efficient Algorithm for Moving k Nearest Neighbor Queries.
Proceedings of the 25th International Conference on Data Engineering, 2009
Robust traffic merging strategies for sensor-enabled cars using time geography.
Proceedings of the 17th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2009
Opportunistic sampling in wireless sensor networks.
Proceedings of the 17th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2009
2008
Geosensor Networks, Formal Foundations.
Proceedings of the Encyclopedia of GIS., 2008
The V*-Diagram: a query-dependent approach to moving KNN queries.
Proc. VLDB Endow., 2008
Efficient generation of simple polygons for characterizing the shape of a set of points in the plane.
Pattern Recognit., 2008
Kriging for Localized Spatial Interpolation in Sensor Networks.
Proceedings of the Scientific and Statistical Database Management, 2008
A Motion-Aware Approach to Continuous Retrieval of 3D Objects.
Proceedings of the 24th International Conference on Data Engineering, 2008
Autonomous navigation of mobile agents using RFID-enabled space partitions.
Proceedings of the 16th ACM SIGSPATIAL International Symposium on Advances in Geographic Information Systems, 2008
Load Balancing for Moving Object Management in a P2P Network.
Proceedings of the Database Systems for Advanced Applications, 2008
2007
Mobile Computing Systems Programming: A Graduate Distributed Computing Course.
IEEE Distributed Syst. Online, 2007
Navigation and interaction in physical spaces using RFID enabled spatial sensing.
Proceedings of the 5th International Conference on Embedded Networked Sensor Systems, 2007
Proactive traffic merging strategies for sensor-enabled cars.
Proceedings of the Fourth International Workshop on Vehicular Ad Hoc Networks, 2007
Distributed Histograms for Processing Aggregate Data from Moving Objects.
Proceedings of the 8th International Conference on Mobile Data Management (MDM 2007), 2007
Safeguarding Location Privacy in Wireless Ad-Hoc Networks.
Proceedings of the UbiComp 2007: Ubiquitous Computing, 9th International Conference, 2007
2006
Algorithms for Reliable Navigation and Wayfinding.
Proceedings of the Spatial Cognition V: Reasoning, 2006
Efficient Data Collection and Selective Queries in Sensor Networks.
Proceedings of the GeoSensor Networks, Second International Conference, 2006
Incremental Rank Updates for Moving Query Points.
Proceedings of the Geographic Information Science, 4th International Conference, 2006
A Spatiotemporal Model of Strategies and Counter Strategies for Location Privacy Protection.
Proceedings of the Geographic Information Science, 4th International Conference, 2006
2005
Ontology-driven map generalization.
J. Vis. Lang. Comput., 2005
Wayfinding choremes - a language for modeling conceptual route knowledge.
J. Vis. Lang. Comput., 2005
A Formal Model of Obfuscation and Negotiation for Location Privacy.
Proceedings of the Pervasive Computing, 2005
Simulation of Obfuscation and Negotiation for Location Privacy.
Proceedings of the Spatial Information Theory, International Conference, 2005
2004
Commonsense Notions of Proximity and Direction in Environmental Space.
Spatial Cogn. Comput., 2004
Information Dissemination in Mobile Ad-Hoc Geosensor Networks.
Proceedings of the Geographic Information Science, Third International Conference, 2004
2003
Spatial Vagueness and Second-Order.
Spatial Cogn. Comput., 2003
Geometrische Repräsentation scharf und vage begrenzter Objekte.
Künstliche Intell., 2003
A Geometric Agent Following Route Instructions.
Proceedings of the Spatial Cognition III, Routes and Navigation, Human Memory and Learning, 2003
Linearized Terrain: Languages for Silhouette Representations.
Proceedings of the Spatial Information Theory. Foundations of Geographic Information Science, 2003
"Simplest" Paths: Automated Route Selection for Navigation.
Proceedings of the Spatial Information Theory. Foundations of Geographic Information Science, 2003
2002
Geometrische Repräsentation scharf und vage begrenzter Objekte.
PhD thesis, 2002
Qualitative Spatial Change.
Künstliche Intell., 2002
A Graded Approach to Directions between Extended Objects.
Proceedings of the Geographic Information Science, Second International Conference, 2002
2001
A Geometric Theory of Vague Boundaries Based on Supervaluation.
Proceedings of the Spatial Information Theory: Foundations of Geographic Information Science, 2001
2000
The Influence of Linear Shapes on Solving Interval-Based Configuration Problems.
Proceedings of the Spatial Cognition II, 2000
Lexical Specifications of Paths.
Proceedings of the Spatial Cognition II, 2000
Proceedings of the Theory and Application of Diagrams, First International Conference, 2000
1999
Representing Simple Trajectories as Oriented Curves.
Proceedings of the Twelfth International Florida Artificial Intelligence Research Society Conference, 1999
Reasoning about Cardinal Directions Using Grids as Qualitative Geographic Coordinates.
Proceedings of the Spatial Information Theory: Cognitive and Computational Foundations of Geographic Information Science, 1999
1998
Shape Nouns and Shape Concepts: A Geometry for 'Corner'.
Proceedings of the Spatial Cognition, 1998
1997
An Axiomatic Approach to the Spatial Relations Underlying Left-Right and in Front of-Behind.
Proceedings of the KI-97: Advances in Artificial Intelligence, 1997