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TIP
2008
118views more  TIP 2008»
15 years 4 months ago
Minimum Variance Optimal Rate Allocation for Multiplexed H.264/AVC Bitstreams
Consider the problem of transmitting multiple video streams to fulfill a constant bandwidth constraint. The available bit budget needs to be distributed across the sequences in ord...
Marco Tagliasacchi, Giuseppe Valenzise, Stefano Tu...
ICDE
2009
IEEE
106views Database» more  ICDE 2009»
16 years 6 months ago
Dynamic Approaches to In-network Aggregation
Collaboration between small-scale wireless devices hinges on their ability to infer properties shared across multiple nearby nodes. Wireless-enabled mobile devices in particular cr...
Oliver Kennedy, Christoph Koch, Alan J. Demers
ICDE
1999
IEEE
113views Database» more  ICDE 1999»
16 years 6 months ago
I/O Complexity for Range Queries on Region Data Stored Using an R-tree
In this paper we study the node distribution of an Rtree storing region data, like for instance islands, lakes or human-inhabited areas. We will show that real region datasets are...
Guido Proietti, Christos Faloutsos
135
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PODS
2005
ACM
115views Database» more  PODS 2005»
16 years 4 months ago
Histograms revisited: when are histograms the best approximation method for aggregates over joins?
The traditional statistical assumption for interpreting histograms and justifying approximate query processing methods based on them is that all elements in a bucket have the same...
Alin Dobra
IPMI
2009
Springer
15 years 11 months ago
Estimating the Confidence of Statistical Model Based Shape Prediction
We propose a method for estimating confidence regions around shapes predicted from partial observations, given a statistical shape model. Our method relies on the estimation of the...
Rémi Blanc, Ekaterina Syrkina, Gábor...