Most of mobile object trajectory clustering analysis to date has been focused on clustering the location points or sub-trajectories extracted from trajectory data. This paper presents TRACEMOB, a systematic approach to clustering whole trajectories of mobile objects traveling in road networks. TRACEMOB as a whole trajectory clustering framework has three unique features. First, we design […]
Archives for October 2017
Efficient Distance-Aware Influence Maximization in Geo-Social Networks
Given a social network G and a positive integer k, the influence maximization problem aims to identify a set of k nodes in G that can maximize the influence spread under a certain propagation model. As the proliferation of geo-social networks, location-aware promotion is becoming more necessary in real applications. In this paper, we study […]
Efficient Pattern-Based Aggregation on Sequence Data
A Sequence OLAP (S-OLAP) system provides a platform on which pattern-based aggregate (PBA) queries on a sequence database are evaluated. In its simplest form, a PBA query consists of a pattern template T and an aggregate function F. A pattern template is a sequence of variables, each is defined over a domain. Each variable is […]