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A novel information retrieval method based on R-tree index for smart hospital information system

Xinlu Wang, Weiming Meng, Mingchuan Zhang
2019 International Journal of Advanced Computer Research  
Acknowledgment This work was supported in part by the National Natural Science Foundation of China (NSFC) under Grants no. 61801171, and in part by the basic research projects at the University of Henan  ...  As one of the most popular dynamic spatial index structures [20−22] , Rtree is widely used in prototype research and commercial spatial database systems.  ...  Because of dynamics, aggregation and high efficiency, R-tree becomes one of the most widely used and mature indexing technologies in today.  ... 
doi:10.19101/ijacr.2019.940030 fatcat:uc3ndnqn4va3dj7cnzmfjcayca

Investigation and Visualization of Query Determine Spatial Pattern in GIS

Anto Xavier. A, A. Arivazhagan
2018 Indonesian Journal of Electrical Engineering and Computer Science  
Geo server handle the client questions and show the outcome on the dynamic maps.</p>  ...  Information like area astute populace, schools and healing facilities is gathered from various sources. To store GIS information PostgreSQL and PostGIS is giving a good support and capable database.  ...  The point is to discover thickness based clusters in spatial information.  ... 
doi:10.11591/ijeecs.v9.i3.pp552-554 fatcat:6nvmzq6o7ngzbokim6cwjb5js4

Revisiting R-Tree Construction Principles [chapter]

Sotiris Brakatsoulas, Dieter Pfoser, Yannis Theodoridis
2002 Lecture Notes in Computer Science  
We compare our clustering approach to two prominent examples of spatial access methods, the R-and the R*-tree.  ...  In particular, we argue that dynamic R-tree construction is a typical clustering problem which can be addressed by incorporating existing clustering algorithms.  ...  In the field of coupling clustering and spatial indexing, to our knowledge, it is the first time to incorporate a clustering algorithm into a dynamic spatial access method.  ... 
doi:10.1007/3-540-45710-0_13 fatcat:7dd2r3d6jnhzphn6zfwo2gyatq

Research of spatial data cache index of electricity GIS

Bo Hu
2013 Applied Mathematics & Information Sciences  
This paper studies the application of present situation of the GIS platform in the power industry, in view of the existing problems, putting forward a kind of spatial data model of the power facilities  ...  for power industry, and putting forward clustering indexing method based on semantic meaning, and accelerating the response speed of the multi-level cache mechanism.  ...  The authors are grateful to the anonymous referee for a careful checking of the details and for helpful comments that improved this paper.  ... 
doi:10.12785/amis/070336 fatcat:ky6qkgsbofgn7kcaem65pqgfam

Indexing of Query on Spatial Data in P2P Systems

AR. Arunachalam
2012 IOSR Journal of Engineering  
The main objective of this paper is to analyze the process of preserving the locality and dimensionality of space in the network.  ...  Spatial P2P is dynamic in nature. Spatial objects are having distinct properties like identity location and relationship among them and spatial data is multidimensional.  ...  In traditional database systems, NN queries are executed always starting from the root of that tree, i.e., the top-most level clustering; in contrast, in a peer to-peer environment any node should have  ... 
doi:10.9790/3021-0203451453 fatcat:m5ovnigcinei7movrafdzzywam

THE INFLUENCE OF SPATIAL AND SIZE SCALE ON PHYLOGENETIC RELATEDNESS IN TROPICAL FOREST COMMUNITIES

Nathan G. Swenson, Brian J. Enquist, Jill Thompson, Jess K. Zimmerman
2007 Ecology  
When spatial-and sizescaling axes were analyzed in concert, phylogenetic overdispersion of co-occurring species was most important at small spatial scales and in four of five FDPs for the largest size  ...  The relative importance of biotic, abiotic, and stochastic processes in structuring ecological communities continues to be a central focus in community ecology.  ...  Recent work by Swenson et al. (2006) has shown that as the spatial scale of the species pool is increased in relation to the local assemblage scale, phylogenetic clustering becomes more common.  ... 
doi:10.1890/06-1499.1 pmid:17645023 fatcat:ujv3pe6rarfh3igmr2p677jpd4

An efficient 3D R-tree spatial index method for virtual geographic environments

Qing Zhu, Jun Gong, Yeting Zhang
2007 ISPRS journal of photogrammetry and remote sensing (Print)  
Being one of the most promising methods, the R-tree spatial index has been paid increasing attention in 3D geospatial database management.  ...  A new spatial cluster grouping algorithm and R-tree insertion algorithm is then proposed.  ...  Acknowledgments The work described in this paper was supported by National Natural Science Foundation of China (40671158 and 40620130438) and National High Technology Research and Development Program of  ... 
doi:10.1016/j.isprsjprs.2007.05.007 fatcat:dxliuix7l5gfxnnm7kpjgrc45a

New methods for topological clustering and spatial access in object-oriented 3D databases

M. Breunig, A. B. Cremers, W. Müller, J. Siebeck
2001 Proceedings of the ninth ACM international symposium on Advances in geographic information systems - GIS '01  
We are presenting new methods for the efficient spatial access and the physical clustering of 3D geometries according to their topology.  ...  On the other hand, geoscientists and engineers need 3D surface and solid data to research dynamic processes.  ...  Acknowledgements The concepts realized in GeoToolKit have been developed in close cooperation with the Geological Institute at the University of Bonn.  ... 
doi:10.1145/512161.512194 dblp:conf/gis/BreunigCMS01 fatcat:kfrewyuto5cqfo7v4l2gmyjwna

New methods for topological clustering and spatial access in object-oriented 3D databases

M. Breunig, A. B. Cremers, W. Müller, J. Siebeck
2001 Proceedings of the ninth ACM international symposium on Advances in geographic information systems - GIS '01  
We are presenting new methods for the efficient spatial access and the physical clustering of 3D geometries according to their topology.  ...  On the other hand, geoscientists and engineers need 3D surface and solid data to research dynamic processes.  ...  Acknowledgements The concepts realized in GeoToolKit have been developed in close cooperation with the Geological Institute at the University of Bonn.  ... 
doi:10.1145/512191.512194 fatcat:g4r47qzrvje4vk3jujulbafoda

A Survey on Clustering Algorithms for Data in Spatial Database Management Systems

Author Chandra.E, Author Anuradha.V.P
2011 International Journal of Computer Applications  
Each one of the clustering algorithm has advantages and limitations for processing multidimensional data and hence in spatial clustering process.  ...  Hypergraphs and Delaunay triangulations are the enhanced features utilized in a spatial clustering algorithm.  ...  INTRODUCTION Spatial data mining is the discovery of interesting relationships and characteristics that may exist implicitly in spatial databases.  ... 
doi:10.5120/2969-3975 fatcat:eijzgpqndff7fcptsubaew5ntm

A storage and access architecture for efficient query processing in spatial database systems [chapter]

Thomas Brinkhoff, Holger Horn, Hans-Peter Kriegel, Ralf Schneider
1993 Lecture Notes in Computer Science  
In this paper, we describe a storage and access architecture which is composed from the above building blocks in a modular fashion.  ...  Due to the high complexity of objects and queries and also due to extremely large data volumes, geographic database systems impose stringent requirements on their storage and access architecture with respect  ...  The first step in this direction is the development and implementation of 3D-approximation and decomposition techniques.  ... 
doi:10.1007/3-540-56869-7_20 fatcat:p2otzbxrb5b6hjvxsjmfehaxhm

Research and implementation on spatial data storage and operation based on Hadoop platform

Yonggang Wang, Sheng Wang
2010 2010 Second IITA International Conference on Geoscience and Remote Sensing  
Those key technology problems in the application of GIS such as spatial data storage, spatial index and spatial operation were described and studied in detail.  ...  We evaluated the performance and efficiency of spatial operation in Hadoop experiment environment with the real world data set.  ...  For each index file, in order to achieve local data aggregation we adopt the spatial cluster method which is the index form of Hilbert ranking.  ... 
doi:10.1109/iita-grs.2010.5603956 fatcat:durlj2jzkbewvkr5prfxsj6rlm

Data Dissemination Techniques using DBSCAN and DD-Rtree for Spatial Data Mining

2020 International journal of recent technology and engineering  
To make the data processing done in parallel, various clustering sampling methodologies are in use such as Slink, DBSCAN, and Optics and so on.  ...  Our research work will help to implements spatial data dynamically using DDR-tree mechanism.  ...  in spatial databases.  ... 
doi:10.35940/ijrte.e6578.018520 fatcat:rfh4au4ksfcyzgojzlqedserse

A Dimension-Independent and Extensible Framework for Huge Geometric Models [article]

David Canino
2010 Smart Tools and Applications in Graphics  
The OMSM framework can be easily adapted to the users needs through dynamic plugins, providing many techniques to be integrated in a storing architecture.  ...  Nowadays, gigantic models can be easily produced in many applications and their dimension often exceeds the RAM size in a common workstation.  ...  only a local database.  ... 
doi:10.2312/localchapterevents/italchap/italianchapconf2010/111-116 dblp:conf/egItaly/Canino10 fatcat:xqvurg3v7rccrmjugvwgfuqxna

Analysis of Using Metric Access Methods for Visual Search of Objects in Video Databases

Henrique Batista Silva, Zenilton Kleber Gonçalves Patrocínio, Silvio Jamil Ferzoli Guimarães
2014 Revista de Informática Teórica e Aplicada  
This article presents an approach to object retrieval that searches for and localizes all the occurrences of an object in a video database, given a query image of the object.  ...  In addition, a ranking strategy based on the spatial layout of the regions (spatial consistency) is fully described and evaluated.  ...  M-tree is a balanced tree, and it is able to handle dynamic data files and requires no periodic reorganization.  ... 
doi:10.22456/2175-2745.37349 fatcat:zjaglcwvdrgipfibnxaivo64oq
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