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An Integrated Photogrammetric and Spatial Database Management System for Producing Fully Structured Data Using Aerial and Remote Sensing Images
2009
Sensors
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3D spatial data acquired from aerial and remote sensing images by photogrammetric techniques is one of the most accurate and economic data sources for GIS, map production, and spatial data updating. ...
Applying spatial databases overcomes the problem of managing spatial and attributes data in a coupled approach. ...
Some topological constraints do not have a fixed nature. These constraints are changing from one scale to another scale or from one application to another one. ...
doi:10.3390/s90402320
pmid:22574014
pmcid:PMC3348797
fatcat:jbjmuzvxo5e47iujgredjli7my
Content-based Image Retrieval by Spatial Similarity
2002
Defence Science Journal
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A content-based image retrieval system that erticiently and effectively retrieves information from a defence image database along with the architecture for retrieving images by spatial similarity is presented ...
obiects in a m c i f i c area ..... ~~~~~~ ~~~ ~~ -~ ~ ~ from the aerial photographs and to retrieve images similar to the query image from image database. ...
Fig. 4(b) shows the objects extracted from the image and their corresponding MBRs. ...
doi:10.14429/dsj.52.2183
fatcat:zpsflnbz3nelxgbpvhq6orps6y
Measuring consistency with respect to topological dependency constraints
2010
Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems - GIS '10
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In this paper we propose measures to evaluate the degree of violation of a topological dependency constraint by geometries stored in a spatial database instance. ...
a set of topo-semantic integrity constraints, in particular, a set of topological dependency constraints. ...
This enables not only to decide whether or not a database is useful for an application, but also to compare database instances from where one wishes to extract information. ...
doi:10.1145/1869790.1869818
dblp:conf/gis/RodriguezBML10
fatcat:65kfoar4djad3gzlddcycduj64
A Kind of Improved VGI Spatial Association Rule Mining Algorithm Based on Multi-level Semantic Constraints
2017
DEStech Transactions on Computer Science and Engineering
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Spatial data mining is a demanding field since huge amounts of spatial data have been collected in various applications, ranging from remote sensing to geographical information systems, VGI data, computer ...
The paper proposes a kind of VGI spatial association rule mining, which can extract frequent set quickly from VGI data. The experiment shows that the proposed algorithm is valid and efficient. ...
The paper proposes a kind of algorithm for extracting spatial association rules based on the multi-level semantic constraints, which can extract frequent set quickly from VGI data, and the experiments ...
doi:10.12783/dtcse/iceiti2016/6135
fatcat:vk26qpmgjbdanaihdaqxnxpzsq
Inconsistency Issues in Spatial Databases
[chapter]
2005
Lecture Notes in Computer Science
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This chapter analyzes inconsistency issues in spatial databases. ...
The main contribution of this paper is a survey of existing approaches to dealing with inconsistency issues in spatial databases that emphasizes the current state of the art and that outlines research ...
or objects, which can be extracted from several sources at different times. ...
doi:10.1007/978-3-540-30597-2_8
fatcat:edougipvhveexkikdrkso47ud4
Towards Visual Summaries of Geographic Databases Based on Chorems
[chapter]
2009
Lecture Notes in Geoinformation and Cartography
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To get such a visual summary, a two-step process is built, first a phase of spatial data mining process extracts geographic knowledge, and a second phase visualizes it by means of chorems -which can be ...
For many applications, it is very important to get an overview of database contents; and in the case of geographic database, a visual summary can be very helpful for a decision-maker or for any person ...
Rosalva Loreto both from Puebla, Mexico, and Dr Giuliana Vitiello, Dr Monica Sebillo and Dr Vincenzo Del Fatto from the University of Salerno, Italy. ...
doi:10.1007/978-3-540-88244-2_15
fatcat:gvrnqewwbrgchm4wlywy6cmuky
Intelligent Interaction with Virtual Geographical Environments Based on Geographic Knowledge Graph
2019
ISPRS International Journal of Geo-Information
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We construct a multi-level semantic parsing model and an enhanced GeoKG for structured geographic information data, such as digital maps, 3D virtual scenes, and unstructured information data. ...
Based on a geographic knowledge base and a geospatial database, intelligent interactions with virtual geographical environments can be realized by natural language question answering, entity links, and ...
Resolving Spatial Orientation Relations The semantic analysis of orientation relationships needs to consider the constraints of topological and distance relations. ...
doi:10.3390/ijgi8100428
fatcat:chqinehmzbem7dgeye7ceeqss4
Ontology to Improve CBIR System
2012
International Journal of Computer Applications
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Thus we propose a system for image retrieval which will use spatial information to build many of the topological relations like connectivity, adjacency, membership and orientation using ontology along ...
(high precision) while insuring that relevant information is not overlooked (high recall). ...
The classical CBIR extracts features based on moments, color, shape, texture etc. from the image to be retrieved and performs similarity measures with the features extracted from the database images to ...
doi:10.5120/8335-1897
fatcat:uzq46gcqofbaln7ebvjckbrigu
:{unav)
2012
Geoinformatica
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In geographical information systems (GIS), data quality management has to handle the spatial features of objects, which brings speci®c problems. ...
the SUR) is currently conducted; ®rst results are presented. * the structural level (data structures), * the geometric level (conceptual model), * the topo-semantic level (objects meaning according to topological ...
A list of properties has been extracted from observations of the world and from a study of the most used spatial data models. This list given on ®gure 4 is the subject of the next part (3.1). ...
doi:10.1023/a:1009824308542
fatcat:glekknogf5b7tbep2v4ufsj6ce
Incremental Updating Information Extraction and Topology Conflict Detection Method for Updating Road Network
2019
Abstracts of the International Cartographic Association
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The extraction of incremental information includes two key technologies, namely road network matching and road network selection. ...
Compared with the traditional web spatial information service system, service system of map information also put forward higher requirements of real time and veracity. ...
The extraction of incremental information includes two key technologies, namely road network matching and road network selection. ...
doi:10.5194/ica-abs-1-429-2019
fatcat:hdorqvwjl5fnbfmqn6kkz5ta7i
APPLICATION OF SPATIOTEMPORAL ASSOCIATION RULES ON SOLAR DATA TO SUPPORT SPACE WEATHER FORECASTING
2020
Zenodo
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MiTSAI has to extract interesting new patterns compared with the art-state algorithms. ...
Here, a description is given about the details of the modern algorithm MiTSAI, which is an extractor of Thematic Spatiotemporal Association Rules (TSARs) from solar Satellite Image Time Series (SITS). ...
Figure 9 . 9 Rules extracted from the Haralick features database.
Figure 11 . 11 Rules extracted from the SURF features database. ...
doi:10.5281/zenodo.3743968
fatcat:yd7fnsk7f5hshoulptiwh3hrgm
Mining and Filtering Multi-level Spatial Association Rules with ARES
[chapter]
2005
Lecture Notes in Computer Science
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In spatial data mining, a common task is the discovery of spatial association rules from spatial databases. ...
It supports spatial database coupling and discovery of multi-level spatial association rules as a means for spatial data exploration. ...
Acknowledgments We thank Jim Petch, Keith Cole and Mohammed Islam (University of Manchester) for collecting data made available through Manchester Computing in the context of the IST European project SPIN (Spatial ...
doi:10.1007/11425274_36
fatcat:5xlgkitshfb6xgfl5yejvdfrue
Deriving place graphs from spatial databases
2018
Locate Conference
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In this research, we present an innovative approach to derive place graphs from information stored in spatial databases, with a demonstration using OpenStreetMap data. ...
A place graph is an abstract representation of human place knowledge, which models spatial references. ...
Accordingly, the hypothesis of this paper is that place graphs can be generated from information stored in spatial databases. ...
dblp:conf/locate/HamzeiCVT018
fatcat:zmqyjuggira6bjln2ci6urrhoa
Computer-generated Visual Summaries of Spatial Databases: Chorems or not Chorems?
2009
SAPIENS
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databases. ...
Indeed for spatial decision-makers, it is more important to identify and map problems than facts. ...
CANONICAL DATABASE The system begins by a database to be mined in order to extract spatial patterns. ...
doaj:c324c117b1204e44a55bb403407895e0
fatcat:fwl4lavyhnd4hjbuohmhkbfos4
An ontology for the generalisation of the bathymetry on nautical charts
2014
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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geometrical constraints but also to semantic constraints. ...
These methods are mainly used to generate a new chart from the bathymetric database or from a large scale chart through selection and simplification however a part of the process consists in selecting ...
Virtuoso stores all the concepts and relationships of the ontology, forming an ontology database and is also used to store the bathymetric database from which chart data are extracted. ...
doi:10.5194/isprsannals-ii-2-1-2014
fatcat:lbrjww472rhopephvq24l3cjb4
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