Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"spatial databases"”.
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Efficient Concurrent Operations in Spatial Databases
… ecology analysis, and space research, efficient spatial data access methods have attracted much research. Especially, moving object management and continuous spatial queries are becoming highlighted in the spatial database area. However, most of the existing spatial query processing approaches …
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GeoExpert - An Expert System Based Framework for Data Quality in Spatial Databases
<p>Usage of very large sets of historical spatial data in knowledge discovery process became a common trend, and in order to obtain better results from this knowledge discovery process the data should be of high quality. In this thesis we proposed a framework 'GeoExpert' for data quality assessment …
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Measuring Community Consensus in Facial Characterization Using Spatial Databases and Fuzzy Logic
Spatial databases store geometric objects and capture spatial relationships that can be used to represent key features of the human face. One can search spatial databases for these objects, and seek the relationships between them, using fuzzy logic to provide a natural way to describe the human …
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A single-pass grid-based algorithm for clustering big data on spatial databases
… With the rapid growth of very large databases, traditional clustering algorithms become inefficient due to insufficient memory capacity. Grid-based algorithms try to solve this problem by dividing the space into cells and then performing clustering on the cells. However these …
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Developing a theory of nightclub location choice
… various government documents, as well as spatial and non-spatial databases, were consulted to formulate conclusions. As is the case with other forms of retail, nightclub owners are most concerned with patron accessibility and proximity to complimentary businesses when deciding where to …
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Remote sensing for developing an operational monitoring scheme for the Sundarban Reserved Forest, Bangladesh <engl.>
… Therefore accurate and continuously updated spatial information is needed for optimising forest management and environmental planning on both levels to support the fulfilment of urgent needs of sustainability of the forest. Considering the specific topography and the poor accessibility of the …
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An Object-Oriented Algorithmic Laboratory for Ordering Sparse Matrices
… for cache performance, gene sequencing, and spatial databases. Fill reducing orderings are generally limited to—but an inextricable part of—sparse matrix factorization.</p> <p>Our major contribution to this field is the design of new and improved heuristics for these NP-hard problems and …
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Environmental management in Antarctica using geographical information systems
… using GIS where appropriate to handle the spatial data. At an international level, an Antarctic Treaty Data Centre (ATDC) is proposed to receive and coordinate data and directories from participating national and regional centres, to establish a scientific and environmental data system, and …
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Summarizing data with representative patterns
… to model the inherent veracity of data; spatial data mining attracts much research attention as the widespread of location-based services and wearable devices. As a fundamental topic of data mining, how to effectively and efficiently summarize data in this situation still remains to be …
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FP-tree Based Spatial Co-location Pattern Mining
A co-location pattern is a set of spatial features frequently located together in space. A frequent pattern is a set of items that frequently appears in a transaction database. Since its introduction, the paradigm of frequent pattern mining has undergone a shift from candidate generation-and-test …