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139
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MDM
2004
Springer
15 years 10 months ago
2004
Springer
Location-based applications require a well-formed representation of spatial knowledge. Current location models can be classified into symbolic or geometric models. The former att...
149
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WETICE
2003
IEEE
15 years 10 months ago
2003
IEEE
Digital signatures, like physical signatures, can verify that a specific user affixed their signature to a document and they can also verify that the document is the same as when ...