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ACM Transactions on Spatial Algorithms and Systems (TSAS) - SIGSPATIAL Paper and Regular Papers, Volume 3 Issue 2, August 2017

Section: SIGSPATIAL Paper

Accurate and Energy-Efficient GPS-Less Outdoor Localization
Heba Aly, Anas Basalamah, Moustafa Youssef
Article No.: 4
DOI: 10.1145/3085575

Location-based services have become an important part of our daily lives. However, such services require continuous user tracking while preserving the scarce cell-phone battery resource. In this article, we present Dejavu, a system that...

Section: Regular Papers

Spatial Partition-Based Particle Filtering for Data Assimilation in Wildfire Spread Simulation
Yuan Long, Xiaolin Hu
Article No.: 5
DOI: 10.1145/3099471

This article develops a spatial partition-based particle filtering framework to support data assimilation for large-scale wildfire spread simulation effectively. The developed spatial partition-based particle filtering framework breaks the system...

Classification of Passes in Football Matches Using Spatiotemporal Data
Sanjay Chawla, Joël Estephan, Joachim Gudmundsson, Michael Horton
Article No.: 6
DOI: 10.1145/3105576

A knowledgeable observer of a game of football (soccer) can make a subjective evaluation of the quality of passes made between players during the game, such as rating them as Good, OK, or Bad. In this article, we consider the...

Toward Mining Stop-by Behaviors in Indoor Space
Shan-Yun Teng, Wei-Shinn Ku, Kun-Ta Chuang
Article No.: 7
DOI: 10.1145/3106736

In this article, we explore a new mining paradigm, called Indoor Stop-by Patterns (ISP), to discover user stop-by behavior in mall-like indoor environments. The discovery of ISPs enables new marketing collaborations, such as a...