ComputationWorld 2019
May 05, 2019 to May 09, 2019 - Venice, Italy

  • SERVICE COMPUTATION 2019, The Eleventh International Conference on Advanced Service Computing
  • CLOUD COMPUTING 2019, The Tenth International Conference on Cloud Computing, GRIDs, and Virtualization
  • FUTURE COMPUTING 2019, The Eleventh International Conference on Future Computational Technologies and Applications
  • COGNITIVE 2019, The Eleventh International Conference on Advanced Cognitive Technologies and Applications
  • ADAPTIVE 2019, The Eleventh International Conference on Adaptive and Self-Adaptive Systems and Applications
  • CONTENT 2019, The Eleventh International Conference on Creative Content Technologies
  • PATTERNS 2019, The Eleventh International Conference on Pervasive Patterns and Applications
  • COMPUTATION TOOLS 2019, The Tenth International Conference on Computational Logics, Algebras, Programming, Tools, and Benchmarking
  • BUSTECH 2019, The Ninth International Conference on Business Intelligence and Technology

InfoSys 2019
June 02, 2019 to June 06, 2019 - Athens, Greece

  • ICNS 2019, The Fifteenth International Conference on Networking and Services
  • ICAS 2019, The Fifteenth International Conference on Autonomic and Autonomous Systems
  • ENERGY 2019, The Ninth International Conference on Smart Grids, Green Communications and IT Energy-aware Technologies
  • WEB 2019, The Seventh International Conference on Building and Exploring Web Based Environments
  • DBKDA 2019, The Eleventh International Conference on Advances in Databases, Knowledge, and Data Applications
  • SIGNAL 2019, The Fourth International Conference on Advances in Signal, Image and Video Processing
  • BIOTECHNO 2019, The Eleventh International Conference on Bioinformatics, Biocomputational Systems and Biotechnologies

InfoWare 2019
June 30, 2019 to July 04, 2019 - Rome, Italy

  • ICCGI 2019, The Fourteenth International Multi-Conference on Computing in the Global Information Technology
  • ICWMC 2019, The Fifteenth International Conference on Wireless and Mobile Communications
  • VEHICULAR 2019, The Eighth International Conference on Advances in Vehicular Systems, Technologies and Applications
  • INTERNET 2019, The Eleventh International Conference on Evolving Internet
  • COLLA 2019, The Ninth International Conference on Advanced Collaborative Networks, Systems and Applications
  • INTELLI 2019, The Eighth International Conference on Intelligent Systems and Applications
  • VISUAL 2019, The Fourth International Conference on Applications and Systems of Visual Paradigms
  • HUSO 2019, The Fifth International Conference on Human and Social Analytics
  • BRAININFO 2019, The Fourth International Conference on Neuroscience and Cognitive Brain Information

DataSys 2019
July 28, 2019 to August 01, 2019 - Nice, France

  • AICT 2019, The Fifteenth Advanced International Conference on Telecommunications
  • ICIW 2019, The Fourteenth International Conference on Internet and Web Applications and Services
  • ICIMP 2019, The Fourteenth International Conference on Internet Monitoring and Protection
  • SMART 2019, The Eighth International Conference on Smart Cities, Systems, Devices and Technologies
  • IMMM 2019, The Ninth International Conference on Advances in Information Mining and Management
  • INFOCOMP 2019, The Ninth International Conference on Advanced Communications and Computation
  • MOBILITY 2019, The Ninth International Conference on Mobile Services, Resources, and Users
  • SPWID 2019, The Fifth International Conference on Smart Portable, Wearable, Implantable and Disability-oriented Devices and Systems
  • ACCSE 2019, The Fourth International Conference on Advances in Computation, Communications and Services

NexTech 2019
September 22, 2019 to September 26, 2019 - Porto, Portugal

  • UBICOMM 2019, The Thirteenth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies
  • ADVCOMP 2019, The Thirteenth International Conference on Advanced Engineering Computing and Applications in Sciences
  • SEMAPRO 2019, The Thirteenth International Conference on Advances in Semantic Processing
  • AMBIENT 2019, The Ninth International Conference on Ambient Computing, Applications, Services and Technologies
  • EMERGING 2019, The Eleventh International Conference on Emerging Networks and Systems Intelligence
  • DATA ANALYTICS 2019, The Eighth International Conference on Data Analytics
  • GLOBAL HEALTH 2019, The Eighth International Conference on Global Health Challenges
  • CYBER 2019, The Fourth International Conference on Cyber-Technologies and Cyber-Systems

NetWare 2019
October 27, 2019 to October 31, 2019 - Nice, France

  • SENSORCOMM 2019, The Thirteenth International Conference on Sensor Technologies and Applications
  • SENSORDEVICES 2019, The Tenth International Conference on Sensor Device Technologies and Applications
  • SECURWARE 2019, The Thirteenth International Conference on Emerging Security Information, Systems and Technologies
  • AFIN 2019, The Eleventh International Conference on Advances in Future Internet
  • CENICS 2019, The Twelfth International Conference on Advances in Circuits, Electronics and Micro-electronics
  • ICQNM 2019, The Thirteenth International Conference on Quantum, Nano/Bio, and Micro Technologies
  • FASSI 2019, The Fifth International Conference on Fundamentals and Advances in Software Systems Integration
  • GREEN 2019, The Fourth International Conference on Green Communications, Computing and Technologies

SoftNet 2019
November 24, 2019 to November 28, 2019 - Valencia, Spain

  • ICSEA 2019, The Fourteenth International Conference on Software Engineering Advances
  • ICSNC 2019, The Fourteenth International Conference on Systems and Networks Communications
  • CENTRIC 2019, The Twelfth International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services
  • VALID 2019, The Eleventh International Conference on Advances in System Testing and Validation Lifecycle
  • SIMUL 2019, The Eleventh International Conference on Advances in System Simulation
  • SOTICS 2019, The Ninth International Conference on Social Media Technologies, Communication, and Informatics
  • INNOV 2019, The Eighth International Conference on Communications, Computation, Networks and Technologies
  • HEALTHINFO 2019, The Fourth International Conference on Informatics and Assistive Technologies for Health-Care, Medical Support and Wellbeing

 


ThinkMind // DBKDA 2014, The Sixth International Conference on Advances in Databases, Knowledge, and Data Applications // View article dbkda_2014_3_10_50038


In-Memory Distance Threshold Queries on Moving Object Trajectories

Authors:
Michael Gowanlock
Henri Casanova

Keywords: spatiotemporal databases; query optimization

Abstract:
The need to query spatiotemporal databases that store trajectories of moving objects arises in a broad range of application domains. In this work, we focus on in-memory distance threshold queries which return all moving objects that are found within a given distance d of a fixed or moving object over a time interval. We propose algorithms to solve such queries efficiently, using an R-tree index to store trajectory data and two methods for filtering out trajectory segments so as to reduce segment processing time. We evaluate our algorithms on both real-world and synthetic in-memory trajectory datasets. Choosing an efficient trajectory splitting strategy to reduce index resolution increases the efficiency of distance threshold queries. Interestingly, the traditional notion of considering good trajectory splits by minimizing the volume of MBBs so as to reduce index overlap is not well-suited to improve the performance of in-memory distance threshold queries.

Pages: 41 to 50

Copyright: Copyright (c) IARIA, 2014

Publication date: April 20, 2014

Published in: conference

ISSN: 2308-4332

ISBN: 978-1-61208-334-6

Location: Chamonix, France

Dates: from April 20, 2014 to April 24, 2014

SERVICES CONTACT
2010 - 2017 © ThinkMind. All rights reserved.
Read Terms of Service and Privacy Policy.