An efficient data processing framework for mining the massive trajectory of moving objects: Fid-Bau Portal

An efficient data processing framework for mining the massive trajectory of moving objects

Zhou, Yuanchun / Zhang, Yang / Ge, Yong / Xue, Zhenghua / Fu, Yanjie / Guo, Danhuai / Shao, Jing / Zhu, Tiangang / Wang, Xuezhi / Li, Jianhui

Abstract

Highlights•A novel framework for efficient processing of trajectory data of moving objects.•Propose a big data distribution module based on a two-step consistent hashing algorithm.•Propose a data transformation module based on a parallel linear referencing strategy.•Propose a compression-aware I/O performance improvement module.•Conduct extensive empirical studies on large scale 1.114TB synthetic data and real 578GB GPS data.

AbstractRecently, there has been increasing development of positioning technology, which enables us to collect large scale trajectory data for moving objects. Efficient processing and analysis of massive trajectory data has thus become an emerging and challenging task for both researchers and practitioners. Therefore, in this paper, we propose an efficient data processing framework for mining massive trajectory data. This framework includes three modules: (1) a data distribution module, (2) a data transformation module, and (3) a high performance I/O module. Specifically, we first design a two-step consistent hashing algorithm, which takes into account load balancing, data locality, and scalability, for a data distribution module. In the data transformation module, we present a parallel strategy of a linear referencing algorithm with reduced subtask coupling, easy-implemented parallelization, and low communication cost. Moreover, we propose a compression-aware I/O module to improve the processing efficiency. Finally, we conduct a comprehensive performance evaluation on a synthetic dataset (1.114TB) and a real world taxi GPS dataset (578GB). The experimental results demonstrate the advantages of our proposed framework.