The R*-tree: an efficient and robust access method for points and rectangles
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
Towards an analysis of range query performance in spatial data structures
PODS '93 Proceedings of the twelfth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A model for the prediction of R-tree performance
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A cost model for nearest neighbor search in high-dimensional data space
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Updating and Querying Databases that Track Mobile Units
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Indexing the positions of continuously moving objects
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Introduction to Algorithms
Cost and Imprecision in Modeling the Position of Moving Objects
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
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VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Capturing the Uncertainty of Moving-Object Representations
SSD '99 Proceedings of the 6th International Symposium on Advances in Spatial Databases
Evaluating probabilistic queries over imprecise data
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Querying Imprecise Data in Moving Object Environments
IEEE Transactions on Knowledge and Data Engineering
Efficient query evaluation on probabilistic databases
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Efficient indexing methods for probabilistic threshold queries over uncertain data
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Evaluation of probabilistic queries in moving objects databases
MobiDE '06 Proceedings of the 5th ACM international workshop on Data engineering for wireless and mobile access
On-line data reduction and the quality of history in moving objects databases
MobiDE '06 Proceedings of the 5th ACM international workshop on Data engineering for wireless and mobile access
ULDBs: databases with uncertainty and lineage
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Index for fast retrieval of uncertain spatial point data
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A hyperplane based indexing technique for high-dimensional data
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Range search on multidimensional uncertain data
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Probabilistic skylines on uncertain data
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
Modeling and querying vague spatial objects using shapelets
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
On-line discovery of hot motion paths
EDBT '08 Proceedings of the 11th international conference on Extending database technology: Advances in database technology
Probabilistic ranked queries in uncertain databases
EDBT '08 Proceedings of the 11th international conference on Extending database technology: Advances in database technology
EDBT '08 Proceedings of the 11th international conference on Extending database technology: Advances in database technology
Monochromatic and bichromatic reverse skyline search over uncertain databases
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Ranking queries on uncertain data: a probabilistic threshold approach
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Finding frequent items in probabilistic data
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Query answering techniques on uncertain and probabilistic data: tutorial summary
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Query Selectivity Estimation for Uncertain Data
SSDBM '08 Proceedings of the 20th international conference on Scientific and Statistical Database Management
ProUD: Probabilistic Ranking in Uncertain Databases
SSDBM '08 Proceedings of the 20th international conference on Scientific and Statistical Database Management
Efficient search for the top-k probable nearest neighbors in uncertain databases
Proceedings of the VLDB Endowment
Cleaning uncertain data with quality guarantees
Proceedings of the VLDB Endowment
Processing probabilistic spatio-temporal range queries over moving objects with uncertainty
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
Top-k dominating queries in uncertain databases
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
Evaluating probability threshold k-nearest-neighbor queries over uncertain data
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
PROUD: a probabilistic approach to processing similarity queries over uncertain data streams
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
Anytime measures for top-k algorithms on exact and fuzzy data sets
The VLDB Journal — The International Journal on Very Large Data Bases
Probabilistic Threshold Range Aggregate Query Processing over Uncertain Data
APWeb/WAIM '09 Proceedings of the Joint International Conferences on Advances in Data and Web Management
Hot Item Detection in Uncertain Data
PAKDD '09 Proceedings of the 13th Pacific-Asia Conference on Advances in Knowledge Discovery and Data Mining
Efficient processing of probabilistic reverse nearest neighbor queries over uncertain data
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SSDBM 2009 Proceedings of the 21st International Conference on Scientific and Statistical Database Management
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QuaCon'09 Proceedings of the 1st international conference on Quality of context
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QuaCon'09 Proceedings of the 1st international conference on Quality of context
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Geometric computations on indecisive points
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Continuous monitoring of skylines over uncertain data streams
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AN EFFICIENT REPRESENTATION MODEL OF DISTANCE DISTRIBUTION BETWEEN UNCERTAIN OBJECTS
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Spatial query processing for fuzzy objects
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Indexing uncertain spatio-temporal data
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Probabilistic top-k dominating queries in uncertain databases
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Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Processing probabilistic range queries over gaussian-based uncertain data
SSTD'13 Proceedings of the 13th international conference on Advances in Spatial and Temporal Databases
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Personal and Ubiquitous Computing
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In an "uncertain database", an object o is associated with a multi-dimensional probability density function(pdf), which describes the likelihood that o appears at each position in the data space. A fundamental operation is the "probabilistic range search" which, given a value pq and a rectangular area rq, retrieves the objects that appear in rq with probabilities at least pq. In this paper, we propose the U-tree, an access method designed to optimize both the I/O and CPU time of range retrieval on multi-dimensional imprecise data. The new structure is fully dynamic (i.e., objects can be incrementally inserted/deleted in any order), and does not place any constraints on the data pdfs. We verify the query and update efficiency of U-trees with extensive experiments.