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- W2953199845 abstract "Location-Based Service (LBS) is rapidly becoming the next ubiquitous technology for a wide range of mobile applications. To support applications that demand nearest-neighbor and history queries, an LBS spatial indexer must be able to efficiently update, query, archive and mine location records, which can be in contention with each other. In this work, we propose MOIST, whose baseline is a recursive spatial partitioning indexer built upon BigTable. To reduce update and query contention, MOIST groups nearby objects of similar trajectory into the same school, and keeps track of only the history of school leaders. This dynamic clustering scheme can eliminate redundant updates and hence reduce update latency. To improve history query processing, MOIST keeps some history data in memory, while it flushes aged data onto parallel disks in a locality-preserving way. Through experimental studies, we show that MOIST can support highly efficient nearest-neighbor and history queries and can scale well with an increasing number of users and update frequency." @default.
- W2953199845 created "2019-06-27" @default.
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- W2953199845 date "2012-08-20" @default.
- W2953199845 modified "2023-09-26" @default.
- W2953199845 title "MOIST: A Scalable and Parallel Moving Object Indexer with School Tracking" @default.
- W2953199845 doi "https://doi.org/10.48550/arxiv.1208.4178" @default.
- W2953199845 hasPublicationYear "2012" @default.
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