Home >> range range aggregate processing spatial da ases


range range aggregate processing spatial da ases

Euler Histogram Tree: A Spatial Data Structure for ...

E.1 [Data]: Data structures; H.2.8 [Database applications]: Spa-tial databases and GIS General Terms Algorithms Keywords aggregate query, spatial histogram, hierarchical data structure 1. INTRODUCTION This paper addresses the problem of processing a variant of range queries in spatial databases for vehicle trajectories. More specifi-

Of Aggregate Query Processing

range aggregate processing spatial databases. range aggregate processing in spatial databases. Range aggregate processing in spatial databases - IEEE, 2004/11/01 Abstract: A range aggregate query returns summarized information about the points falling in a hyper-rectangle (eg, the total number of these points instead of their concrete ids) ...

Supporting Spatial Aggregation in Sensor Network Databases

Supporting Spatial Aggregation in Sensor Network ... proaches for aggregate processing in database systems, these works focus on efficient processing of the traditional aggre-gate operators. Literature on spatial databases also mainly ... wireless sensor networks is orthogonal to our work on spatial aggregate processing. We can utilize any ...

Utilizing Voronoi Cells of Location Data Streams for ...

database systems, these works focus on efficient processing of the traditional aggregate operators. Literature on spatial databases also mainly focus on modelling issues, the class of nearest neighbor queries and index structures to provide fast answers to the queries [4]. Meanwhile, the research work on aggregate processing in wireless sensor ...

A Scalable Algorithm for Maximizing Range Sum in Spatial ...

require managing and processing a large amount of location information, and technologies studied in spatial databases are getting a great deal of attention for this purpose. Tradi-tional researches in spatial databases, however, have mostly focused on retrieving objects (e.g., range search , nearest

Approximately processing aggregate range queries on remote ...

 · Read "Approximately processing aggregate range queries on remote spatial databases, International Journal of Knowledge and Web Intelligence" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Range-aggregate query problems involving geometric ...

We consider variations of the standard orthogonal range searching motivated by applications in database querying and VLSI layout processing. In a generic instance of such a problem, called a range-aggregate query problem we wish to preprocess a set S of geometric objects such that given a query orthogonal range q, a certain intersection or proximity query on the objects of S intersected by q ...

Query processing in spatial network databases

Xuegang Huang , Christian S. Jensen , Simonas Šaltenis, Multiple k nearest neighbor query processing in spatial network databases, Proceedings of the 10th East European conference on Advances in Databases and Information Systems, September 07, 2006, Thessaloniki, Greece

Range-aggregate query problems involving geometric ...

We consider variations of the standard orthogonal range searching motivated by applications in database querying and VLSI layout processing. In a generic instance of such a problem, called a range-aggregate query problem we wish to preprocess a set S of geometric objects such that given a query orthogonal range q, a certain intersection or proximity query on the objects of S intersected by q ...

definition of aggregate query processing

Probabilistic Threshold Range Aggregate Query Processing... - CSE A range aggregate query (RA query) on certain data returns ... Aggregate Nearest Neighbor Queries in Road Networks Index Terms—Query processing, spatial databases, spatial databases and GIS, ... Online Processing of Aggregate Queries in the Cloud 29 Oct ...

range aggregate processing spatial databases

Range Aggregate Processing in Spatial Databases . CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—A range aggregate query returns summarized information about the points falling in a hyper-rectangle (e.g., the total number of these points instead of their concrete ids).

Probabilistic Threshold Range Aggregate Query Processing ...

Large amount of uncertain data is inherent in many novel and important applications such as sensor data analysis and mobile data management. A probabilistic threshold range aggregate (PTRA) query retrieves summarized information about the uncertain objects satisfying a range query, with respect to a given probability threshold.

Range aggregate processing in spatial databases - Henan ...

Clustering spatial networks for aggregate query. 2013225Clustering spatial networks for aggregate query processing: A hypergraph approach$ Engin Demir, Cevdet Aykanat , B Barla Cambazoglu but generally the nearest neighbor, range search, spatial join, and closest pair queries are the Query types in spatial networks are somewhat different than those in spatial databases as the evaluation of

Spatial Aggregation: Data Model and Implementation Leticia ...

We propose a formal model for spatial aggregation that supports efficient eval-uation of aggregate queries in spatial databases based on the OLAP paradigm. This model is aimed at integrating GIS and OLAP in a unique framework. A GIS dimension is defined as …

Efficient Maximum Range Search on Remote Spatial …

processing either k-ANN queries or aggregate range queries on remote spatial databases. In other words, a new strategy for efficiently processing these queries is required. This paper applies Regular Polygon based Search Algorithm (RPSA)toefficiently searching approximate aggregate range …

Colored top-K range-aggregate queries - ScienceDirect

We consider colored top-K range-aggregate query, where color indicates a category.We consider colored, weighted points and intervals as input objects. • We report best k colors with respect to aggregate functions Max/Min and Count.. We propose efficient output sensitive solutions for functions Max/Min and Count.

Algorithms for Fundamental Spatial Aggregate Operations ...

spatial aggregates is devoted to mechanisms to support range queries, or box queries. Aggregate range queries perform some aggregate operation over spatial or spatiotemporal data that fall into a user speci ed area (the range or box), pos-sibly over some speci ed time window [17, 10, 13]. Such aggregation mechanisms seem to stem from the ...

Approximation Techniques for Spatial Data

tance. In spatial data management, records in the database have a spatial extent, and users can pose expressive queries such as a spatial join between two relations (join all objects that overlap or are within certain distance of each other) or a range query (report all objects in a selected range, or return an aggregate over the selected objects).

Approximate range query processing in spatial network ...

TY - JOUR. T1 - Approximate range query processing in spatial network databases. AU - Al-Khalidi, Haidar. AU - Abbas, Zainab. AU - Safar, Maytham Hassan

range aggregate processing spatial databases

Range Aggregate Processing in Spatial Databases . CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract—A range aggregate query returns summarized information about the points falling in a hyper-rectangle (e.g., the total number of these points instead of their concrete ids).

Spatial database - Wikipedia

A spatial database is a database that is optimized for storing and querying data that represents objects defined in a geometric space. Most spatial databases allow the representation of simple geometric objects such as points, lines and polygons. Some spatial databases handle more complex structures such as 3D objects, topological coverages, linear networks, and TINs.

(PDF) Range aggregate processing in spatial databases

Range aggregate processing in spatial databases Article (PDF Available) in IEEE Transactions on Knowledge and Data Engineering 16(12): 1570 · January …

Range Query Grouping In Spatial Networks Using Dual ...

Abstract. Location-based services and the abundant usage of smart phones and GPS-enabled devices, the necessity of outsourcing spatial data has grown rapidly.It deals with the approximate string search in large spatial databases.Specifically, this investigate range queries augmented with a string similarity search predicate in both Euclidean space and road networks.

Analyzing the performance of NoSQL vs. SQL databases for ...

This paper attempts to evaluate the performance of an existing NoSQL database 'MongoDB' with its inbuilt spatial functions with that of a SQL database with spatial extension 'PostGIS' for two problems – spatial and aggregate queries, across a range of datasets, with varying features counts.

Materialized views for count aggregates of spatial data ...

/ Materialized views for count aggregates of spatial data. Advances in Databases and Information Systems - 16th East European Conference, ADBIS 2012, Proceedings. Vol. 7503 LNCS 2012. pp. 440 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

Analyzing the performance of NoSQL vs. SQL databases for ...

an existing NoSQL database ’MongoDB’ with its inbuilt spatial functions with that of a SQL database with spatial extension ’PostGIS’ for two problems spatial and aggregate queries, across a range of datasets, with varying features counts. All the data in the analysis was processed In-memory and no secondary memory was used.

(PDF) Data Structures for Range-Aggregate Extent Queries ...

to the upper (resp. lower) hull of the convex hull of [15] S. Shekhar and S. Chawla. Spatial Databases: A Tour. Prentice Hall, 2002. Si . Let ωiL (resp. ωiR ) be the minimum distance be- [16] Y. Tao and D. Papadias. Range aggregate processing in spatial databases.

Clustering spatial networks for aggregate query processing ...

Clustering spatial networks for aggregate query processing: A hypergraph approach$ Engin Demir, Cevdet Aykanat , B. Barla Cambazoglu ... but generally the nearest neighbor, range search, spatial join, and closest pair queries are the ... Query types in spatial networks are somewhat different than those in spatial databases as the evaluation of ...

Predicted range aggregate processing in spatio-temporal ...

Predicted Range Aggregate Processing in Spatio-temporal Databases Wei Liao, Guifen Tang, Ning Jing, Zhinong Zhong School of Electronic Science and Engineering, National University of Defense Technology Changsha, China [email protected] Abstract Predicted range aggregate (PRA) query is an important researching issue in spatio-temporal

Materialized views for count aggregates of spatial data ...

/ Materialized views for count aggregates of spatial data. Advances in Databases and Information Systems - 16th East European Conference, ADBIS 2012, Proceedings. Vol. 7503 LNCS 2012. pp. 440 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

Spatial database - Wikipedia

A spatial database is a database that is optimized for storing and querying data that represents objects defined in a geometric space. Most spatial databases allow the representation of simple geometric objects such as points, lines and polygons. Some spatial databases handle more complex structures such as 3D objects, topological coverages, linear networks, and TINs.

Spatial Data (SQL Server) - SQL Server | Microsoft Docs

 · Spatial data represents information about the physical location and shape of geometric objects. These objects can be point locations or more complex objects such as countries, roads, or lakes. SQL Server supports two spatial data types: the geometry data type and the geography data type.