32545 search results - page 6338 / 6509 » Data Structures and Algorithms |
157
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PODS
2008
ACM
16 years 5 months ago
2008
ACM
We revisit the classical chase procedure, studying its properties as well as its applicability to standard database problems. We settle (in the negative) the open problem of decid...
154
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ICDE
2010
IEEE
16 years 4 months ago
2010
IEEE
Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
161
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ICDE
2010
IEEE
16 years 4 months ago
2010
IEEE
Many online or local data sources provide powerful querying mechanisms but limited ranking capabilities. For instance, PubMed allows users to submit highly expressive Boolean keywo...
158
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MOBIHOC
2005
ACM
16 years 4 months ago
2005
ACM
: In this paper, we analyze the node scheduling approach of topology control in the context of reliable packet delivery. In node scheduling, only a minimum set of nodes needed for ...
154
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MOBIHOC
2005
ACM
16 years 4 months ago
2005
ACM
In this paper, we introduce a novel congestion control algorithm for TCP over multihop IEEE 802.11 wireless networks implementing rate-based scheduling of transmissions within the...