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ACM Transactions on Spatial Algorithms and Systems (TSAS), Volume 2 Issue 3, October 2016

Efficient Processing of Relevant Nearest-Neighbor Queries
Christodoulos Efstathiades, Alexandros Efentakis, Dieter Pfoser
Article No.: 9
DOI: 10.1145/2934675

Novel Web technologies and resulting applications have led to a participatory data ecosystem that, when utilized properly, will lead to more rewarding services. In this work, we investigate the case of Location-Based Services, specifically how to...

Mining At Most Top-K% Spatiotemporal Co-occurrence Patterns in Datasets with Extended Spatial Representations
Karthik Ganesan Pillai, Rafal A. Angryk, Juan M. Banda, Dustin Kempton, Berkay Aydin, Petrus C. Martens
Article No.: 10
DOI: 10.1145/2936775

Spatiotemporal co-occurrence patterns (STCOPs) in datasets with extended spatial representations are two or more different event types, represented as polygons evolving in time, whose instances often occur together in both space and time. Finding...

Simulating Our LifeSteps by Example
Nikos Pelekis, Stylianos Sideridis, Panagiotis Tampakis, Yannis Theodoridis
Article No.: 11
DOI: 10.1145/2937753

During the past few decades, a number of effective methods for indexing, query processing, and knowledge discovery in moving object databases have been proposed. An interesting research direction that has recently emerged handles semantics of...

Social Influence-Aware Reverse Nearest Neighbor Search
Hui-Ju Hung, De-Nian Yang, Wang-Chien Lee
Article No.: 12
DOI: 10.1145/2964906

Business-location planning, critical to the success of many businesses, can be addressed by the reverse nearest neighbors (RNN) query using geographical proximity to the customers as the main metric to find a store location close to many...