Results 11 to 20 of about 271,473 (265)
Approximate MaxRS in spatial databases [PDF]
Proceedings of the VLDB Endowment, 2013 In the maximizing range sum (MaxRS) problem, given (i) a setPof 2D points each of which is associated with a positive weight, and (ii) a rectanglerof specific extents, we need to decide where to placerin order to maximize the covered weight ofr- that is, the total weight of the data points covered byr.
Yufei Tao 0001 +3 more
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Spatial searching in geometric databases [PDF]
Proceedings. Fourth International Conference on Data Engineering, 2003 A principle is presented for transforming suitable index structures for points into index structures for k-dimensional intervals. In many applications, these intervals serve as simple geometric keys for nonzero-size objects. The transformation fully preserves the advantages of the selected index structure for points, such as efficient update and ...
Six, Hans-Werner, Widmayer, Peter
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Research on Planar Mosaic Method for Colored Textures of Regularly Symmetric Jar-type Cultural Relics [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe use of stitching methods to obtain side view unfolded images of jar-shaped cultural relics with regular symmetrical shapes is of great significance for the digital presentation of cultural heritage.
X. Yuan, Y. Hu
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A Framework for Cartographic Representation of Archaeological Sites under the Digital Humanities Perspective [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThis study is based on the intersection of digital humanities and archaeological geography, and aims to construct a multidimensional classification system (value dimension, spatial form, cultural connotation) that integrates ontology and phenomenological
D. Xie, Y. Hu
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Fuzzy Reliability in Spatial Databases [PDF]
Advances in Fuzzy Systems, 2013 Today it is very difficult to evaluate the quality of spatial databases, mainly for the heterogeneity of input data. We define a fuzzy process for evaluating the reliability of a spatial database: the area of study is partitioned in isoreliable zones, defined as homogeneous zones in terms of data quality and environmental characteristics.
F. Di Martino, SESSA, SALVATORE
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Two-Phase Oblique Photogrammetric Model for Automated Change Detection in Railroad Slopes [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesRailroad slope detection is crucial for railroad inspection. However, traditional stability detection methods face challenges such as high costs, subjectivity, and reliance on prior information.
X. Zhu, M. Huang, M. Huang, L. Wang
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Improving Spatial neighbor Index Performance Based on [PDF]
Kirkuk Journal of Science, 2014 Spatial data consists of objects in space made up of points, lines, regions and data of higher dimensions. Access method is required to support efficient manipulation of the multi-dimensional spatial objects in the secondary storage.
Nzar Abdulqader Ali Payman Othman Rahem
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Method for Establishing a Spatial Database of Traffic Signs with Machine Learning
Media Komunikasi Teknik Sipil, 2023 Traffic signs are part of road equipment whose existence is very important, in addition to functioning as warnings, prohibitions, orders, or instructions for road users, traffic signs are also a means to reduce accidents and regulate driver behavior ...
Nindyo Cahyo Kresnanto +1 more
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International Journal of Digital Earth, 2021 There are different processes in 3D urban land administration in which spatial analysis plays an underpinning role. Among 3D data models, Industry Foundation Class (IFC) provides the potential capabilities for modelling legal and physical dimensions of ...
Maryam Barzegar +3 more
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Computing the inverse of cardinal direction relations between regions
Journal of Intelligent Systems, 2022 The inversion of directions is an important operation with directions which plays an important role in qualitative spatial reasoning and spatial queries. In this work, we address on the inversion operation of the basic cardinal direction relations in the
Wang Miao +5 more
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