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» On Approximate Majority and Probabilistic Time
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PODS
2005
ACM
211views Database» more  PODS 2005»
14 years 8 months ago
Join-distinct aggregate estimation over update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
Sumit Ganguly, Minos N. Garofalakis, Amit Kumar, R...
HUC
2009
Springer
14 years 1 months ago
Simultaneous localization and mapping for pedestrians using only foot-mounted inertial sensors
In this paper we describe a new Bayesian estimation approach for simultaneous mapping and localization for pedestrians based on odometry with foot mounted inertial sensors. When s...
Patrick Robertson, Michael Angermann, Bernhard Kra...
FOCS
2000
IEEE
14 years 29 days ago
Stable Distributions, Pseudorandom Generators, Embeddings and Data Stream Computation
In this article, we show several results obtained by combining the use of stable distributions with pseudorandom generators for bounded space. In particular: —We show that, for a...
Piotr Indyk
FOCS
1999
IEEE
14 years 26 days ago
Near-Optimal Conversion of Hardness into Pseudo-Randomness
Various efforts ([?, ?, ?]) have been made in recent years to derandomize probabilistic algorithms using the complexity theoretic assumption that there exists a problem in E = dti...
Russell Impagliazzo, Ronen Shaltiel, Avi Wigderson
DBSEC
2004
108views Database» more  DBSEC 2004»
13 years 10 months ago
Why Is this User Asking so Many Questions? Explaining Sequences of Queries
A sequence of queries submitted by a database user within a short period of time may have a single, illuminating explanation. In this paper we consider sequences of single-record q...
Aybar C. Acar, Amihai Motro