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SIGMOD
2004
ACM
157views Database» more  SIGMOD 2004»
16 years 5 months ago
Holistic UDAFs at streaming speeds
Many algorithms have been proposed to approximate holistic aggregates, such as quantiles and heavy hitters, over data streams. However, little work has been done to explore what t...
Graham Cormode, Theodore Johnson, Flip Korn, S. Mu...
ICDE
2007
IEEE
114views Database» more  ICDE 2007»
15 years 11 months ago
Ranking Issues for Information Integration
Ranking of query/search answers, although introduced by early information retrieval systems, has become mandatory for internet searches. When the answers of a query or search are ...
Aditya Telang, Roochi Mishra, Sharma Chakravarthy
DOLAP
2006
ACM
15 years 11 months ago
Pre-aggregation with probability distributions
Motivated by the increasing need to analyze complex, uncertain multidimensional data this paper proposes probabilistic OLAP queries that are computed using probability distributio...
Igor Timko, Curtis E. Dyreson, Torben Bach Pederse...
AICCSA
2005
IEEE
112views Hardware» more  AICCSA 2005»
15 years 10 months ago
Multilevel chunking of multidimensional arrays
Multidimensional arrays have become very common in scientific and business applications. Such arrays are usually very large and hence they are stored on secondary or tertiary stor...
A. S. Sawires, Nagwa M. El-Makky, Khalil M. Ahmed
WISE
2005
Springer
15 years 10 months ago
Document Re-ranking by Generality in Bio-medical Information Retrieval
Document ranking is well known to be a crucial process in information retrieval (IR). It presents retrieved documents in an order of their estimated degrees of relevance to query. ...
Xin Yan, Xue Li, Dawei Song