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» Database De-Centralization - A Practical Approach
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ICPR
2002
IEEE
14 years 2 months ago
Human Identification by Spatio-Temporal Symmetry
We describe spatio-temporal symmetry and its extraction via a Generalised Symmetry Operator. Its use in gait recognition is reinforced by the view from psychology that human gait ...
James B. Hayfron-Acquah, Mark S. Nixon, John N. Ca...
EDBT
2009
ACM
135views Database» more  EDBT 2009»
14 years 2 months ago
Provenance for nested subqueries
Data provenance is essential in applications such as scientific computing, curated databases, and data warehouses. Several systems have been developed that provide provenance fun...
Boris Glavic, Gustavo Alonso
EDBT
2009
ACM
164views Database» more  EDBT 2009»
14 years 1 months ago
Efficient identification of starters and followers in social media
Activity and user engagement in social media such as web logs, wikis, online forums or social networks has been increasing at unprecedented rates. In relation to social behavior i...
Michael Mathioudakis, Nick Koudas
DEXA
2004
Springer
91views Database» more  DEXA 2004»
14 years 1 months ago
Efficient Processing of Distributed Iceberg Semi-joins
The Iceberg SemiJoin (ISJ) of two datasets R and S returns the tuples in R which join with at least k tuples of S. The ISJ operator is essential in many practical applications incl...
Mohammed Kasim Imthiyaz, Dong Xiaoan, Panos Kalnis
EDBT
2009
ACM
119views Database» more  EDBT 2009»
14 years 1 months ago
Unrestricted wavelet synopses under maximum error bound
Constructing Haar wavelet synopses under a given approximation error has many real world applications. In this paper, we take a novel approach towards constructing unrestricted Ha...
Chaoyi Pang, Qing Zhang, David P. Hansen, Anthony ...