3972 search results - page 626 / 795 » Cosparse analysis modeling - uniqueness and algorithms |
137
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STOC
2004
ACM
16 years 4 months ago
2004
ACM
We prove an (lg n) cell-probe lower bound on maintaining connectivity in dynamic graphs, as well as a more general trade-off between updates and queries. Our bound holds even if t...
144
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MOBIHOC
2005
ACM
16 years 3 months ago
2005
ACM
Location information is very useful in the design of sensor network infrastructures. In this paper, we study the anchor-free 2D localization problem by using local angle measureme...
121
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CCS
2009
ACM
15 years 10 months ago
2009
ACM
Tor is an anonymous communications network with thousands of router nodes worldwide. An intuition reflected in much of the literature on anonymous communications is that, as an a...
142
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CIKM
2007
Springer
15 years 10 months ago
2007
Springer
Opinion retrieval is a document retrieval process, which requires documents to be retrieved and ranked according to their opinions about a query topic. A relevant document must sa...
180
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IPSN
2007
Springer
15 years 10 months ago
2007
Springer
Recent work has shown that, despite the minimal information provided by a binary proximity sensor, a network of such sensors can provide remarkably good target tracking performanc...