A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is text/html.
Filters
A Model of Fuzzy Topological Relations for Simple Spatial Objects in GIS
2015
Boletim de Ciências Geodésicas
Preserved Fulltext
Firstly, we propose a new definition for simple fuzzy line segments and simple fuzzy regions based on computational fuzzy topology. ...
And then, we also propose a new model to compute fuzzy topological relations between simple spatial objects, an analysis of the new model exposes:(1) the topological relations of two simple crisp objects ...
Based on empty and non-empty invariance, Clementini and Di Felice's Algebraic model, , gave a total of 44 relations between two spatial regions with a broad boundary. ...
doi:10.1590/s1982-21702015000200022
fatcat:co2wxrxmafer7i6c7qkhpdcviu
Cognitively plausible representations for the alignment of sketch and geo-referenced maps
2017
Journal of Spatial Information Science
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
In many geo-spatial applications, freehand sketch maps are considered as an intuitive way to collect user-generated spatial information. ...
Researchers have proposed various qualitative representations to capture distorted and generalized spatial information in sketch maps. ...
The QCNs at the local level are incomplete graphs. The qualifier and spatial rules introduce a none relation between non-adjacent objects in the scene. ...
doi:10.5311/josis.2017.14.294
fatcat:gbkvgh2i5bcadmqzxlmaoipak4
Combinational Reasoning of Quantitative Fuzzy Topological Relations for Simple Fuzzy Regions
2015
PLoS ONE
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
relations of multi-resolution spatial databases. ...
Thus, extending the existing research and improving upon the previous work, this paper presents a new method to describe fuzzy topological relations between simple spatial regions in Geographic Information ...
topological relations of multi-resolution spatial databases [5] [6] [7] . ...
doi:10.1371/journal.pone.0117379
pmid:25775452
pmcid:PMC4361350
fatcat:ipzvtdprgbg6tmfd3jimdlsvwq
A survey of qualitative spatial representations
2013
Knowledge engineering review (Print)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
The reasons for this interest in using qualitative spatial relations include cognitive comprehensibility, efficiency and computational facility. ...
Representation and reasoning with qualitative spatial relations is an important problem in artificial intelligence and has wide applications in the fields of geographic information system, computer vision ...
The topological relations between the indefinite regions are represented by a quadruple of RCC relations between the component crisp regions. ...
doi:10.1017/s0269888913000350
fatcat:47zparitlbb4zmzwobixv2w4ai
Consistency among parts and aggregates: A computational model
1996
Transactions on GIS
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2006; you can also visit the original URL.
The file type is application/pdf.
The formalism extends immediately to relations between two regions with disconnected parts as well as to relations between a region and an arbitrary number of separations. ...
Heterogeneous geographic databases contain multiple views of the same geographic objects at different levels of spatial resolution. ...
Consistent Topological Relations between Regions with Disconnected Parts Ideally, no knowledge about the relation between D A 01 and B would be required to derive the topological relation between A * * ...
doi:10.1111/j.1467-9671.1996.tb00044.x
fatcat:st6je5uabbdxbbh7yhiva5gh5q
Topological Visualisation Techniques for Volume Multifield Data
[chapter]
2018
Computer Graphics and Imaging [Working Title]
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Topological algorithms are used to reduce scalar fields to a skeleton by mapping critical changes in the topology to the vertices of graph structures. ...
This survey paper provides an overview of topological visualisation techniques for scalar data sets. ...
The "rank invariant" is a method for representing persistence in a multi-field by generalising upon the concept of Betti numbers present in univariate topology. ...
doi:10.5772/intechopen.82185
fatcat:f4pgvn2dvzauxp4l6vmje47itm
Simple QSF-trees
1999
Proceedings of the eighth international conference on Information and knowledge management - CIKM '99
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2010; you can also visit the original URL.
The file type is application/pdf.
The method exploits the semantics of topological relations between spatial objects to further reduce the number of index nodes visited during the search. ...
Keywords Database management, spatial database, spatial access methods, point access methods, topological relations. ...
For each topological relation between actual spatial objects, Table 3 gives the coordinates of the L-and H-region used in searching a QSF-tree. ...
doi:10.1145/319950.319953
dblp:conf/cikm/YuOE99
fatcat:m5dmuhya4ff2xg47ist22uk2la
2D Figure Pattern Mining
[chapter]
2011
New Fundamental Technologies in Data Mining
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
Topology graph mining Our method represents spatial relations between the geometric primitives as the topology graph, which is invariant to the 2D affine transformations such as rotation, scaling and www.intechopen.comNew ...
The edge labels represent the spatial relations between the geometric primitives touching or intersecting each other. ...
doi:10.5772/13425
fatcat:iyfk4w3oerephcqewbh3ielaxu
A spatiotemporal object-oriented data model for landslides (LOOM)
2020
Landslides. Journal of the International Consortium on Landslides
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Spatial relations are handled through a hierarchical classification based on topological rules and two levels of aggregation are defined: (i) landslide complexes, grouping spatially connected landslides ...
It aims at the effective storage, in a single dataset, of the complex spatial and temporal relations between landslides recorded and mapped in an area and at their manipulation. ...
RCC describes regions by their possible relations to each other. RCC8 consists of 8 basic relations that are possible between two regions. ...
doi:10.1007/s10346-020-01591-4
fatcat:hwnrxjtdofdpbbttqmmanwbz4e
Ensuring semantic spatial constraints in virtual environments using UML/OCL
2010
Proceedings of the 17th ACM Symposium on Virtual Reality Software and Technology - VRST '10
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
We mainly focus on two important classes of spatial relations, namely, topological and projective relations that allow nonmetric representation of space. ...
Spatial objects and relationships between them, compose a spatial model that is the backbone of virtual environments (VEs). ...
This work was supported by La Région Bretagne, France. ...
doi:10.1145/1889863.1889912
dblp:conf/vrst/TrinhQLC10
fatcat:qfjf3t7bejgfrktyshifqhcuua
Joint Contour Net analysis of lattice QCD data
[article]
2018
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Other Versions
In this work we consider how multivariate topological visualisation techniques can be applied to simulation data to help domain scientists predict the location of phase transitions. ...
In the process it is intended that applying these techniques to lattice QCD will strengthen the interpretation of output from multivariate topological algorithms, including the joint contour net. ...
At higher levels of cooling positive and negative regions become direct neighbours with no near-zero region in between. ...
arXiv:1703.02488v3
fatcat:4ygq4beqtbcvxnlkjpfehldbsq
Analysis of Graph Invariants in Functional Neocortical Circuitry Reveals Generalized Features Common to Three Areas of Sensory Cortex
2014
PLoS Computational Biology
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
distinct cortical regions. ...
By establishing the presence of graph invariants, which are label-independent characteristics common to all circuit topologies, our study revealed organizational features that generalized across functionally ...
To foster reproducibility and fast development of future work based upon these results, we have published functional graph analysis tools under an open source, GPLv3 license, available here: https:/ ...
doi:10.1371/journal.pcbi.1003710
pmid:25010654
pmcid:PMC4091703
fatcat:hvpiauftjjcedi7h2txsc6swpq
Discovery of spatial association rules in geo-referenced census data: A relational mining approach
2003
Intelligent Data Analysis
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The formulation of a new method based on a multi-relational data mining approach is proposed. ...
In particular, the accommodation of the spatial dimension in census data mining is investigated for the task of discovering spatial association rules, that is, association rules involving spatial relations ...
(Spatial Mining for Data of Public Interest) and by the MURST COFIN-2001 project on "Methods for the extraction, validation and representation of statistical information in a decision context". ...
doi:10.3233/ida-2003-7604
fatcat:3qhtztbbprho5bgtue5s3euqlq
Critical matter and geometric phase transitions
2004
Physics Letters A
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
These two elements are shown to induce a geometric phase transition from Riemannian geometry to a conformally invariant geometry. PACS numbers: 64.60.-i, 02.40.-k, 04.20.-q ...
A review of the fundamental nature of critical phenomena suggests that fluctuations of matter fields coupled with a topological transition are the signature elements of critical systems. ...
Papini for introducing him to the topic of conformal invariance. ...
doi:10.1016/j.physleta.2004.01.044
fatcat:sbze25oh55ddzbqr54iekbz6qm
Topo-distance: Measuring the Difference between Spatial Patterns
[chapter]
2000
Lecture Notes in Computer Science
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The framework uses a multi-modal language S4u interpreted on topological spaces (rather than Kripke semantics) to describe the spatial patterns. ...
A framework to deal with spatial patterns at the qualitative level of mereotopology is proposed. The main contribution is to provide formal tools for issues of model equivalence and model similarity. ...
Given two topological models X, O, ν , X , O , ν , a total topological bisimulation is a non-empty relation ⊆ X × X defined for all x ∈ X and for all x ∈ X such that if x x : (base): x ∈ ν(p) iff x ∈ ν ...
doi:10.1007/3-540-40006-0_6
fatcat:fl2svirudbeermhkizkfmpvmyq
« Previous
Showing results 1 — 15 out of 15,488 results