588 search results - page 48 / 118 » Positive higher-order queries |
158
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DGCI
2000
Springer
15 years 8 months ago
2000
Springer
We consider the problem of finding the best match for a given query shape among candidate shapes stored in a shape base. This is central to a wide range of applications, such as, d...
133
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CORR
2010
Springer
14 years 11 months ago
2010
Springer
LRM-Trees are an elegant way to partition a sequence of values into sorted consecutive blocks, and to express the relative position of the first element of each block within a prev...
237
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PODS
2009
ACM
16 years 5 months ago
2009
ACM
Let be a finite, ordered alphabet, and consider a string x = x1x2 . . . xn n . A secondary index for x answers alphabet range queries of the form: Given a range [al, ar] , retu...
154
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GIS
2009
ACM
15 years 11 months ago
2009
ACM
In this paper, we formalize the novel concept of Constrained Reverse k-Nearest Neighbor (CRkNN) search on mobile objects (clients) performed at a central server. The CRkNN query c...
230
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ICDE
2008
IEEE
16 years 5 months ago
2008
IEEE
- The embedding of positioning capabilities in mobile devices and the emergence of location-based applications have created novel opportunities for utilizing several types of multi...