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SIGMOD
2007
ACM
160views Database» more  SIGMOD 2007»
16 years 6 months ago
Supporting ranking and clustering as generalized order-by and group-by
The Boolean semantics of SQL queries cannot adequately capture the "fuzzy" preferences and "soft" criteria required in non-traditional data retrieval applicati...
Chengkai Li, Min Wang, Lipyeow Lim, Haixun Wang, K...
SIGMOD
2010
ACM
310views Database» more  SIGMOD 2010»
15 years 11 months ago
The DataPath system: a data-centric analytic processing engine for large data warehouses
Since the 1970’s, database systems have been “compute-centric”. When a computation needs the data, it requests the data, and the data are pulled through the system. We belie...
Subi Arumugam, Alin Dobra, Christopher M. Jermaine...
VLDB
1999
ACM
174views Database» more  VLDB 1999»
15 years 10 months ago
Extending Practical Pre-Aggregation in On-Line Analytical Processing
On-Line Analytical Processing (OLAP) based on a dimensional view of data is being used increasingly for the purpose of analyzing very large amounts of data. To improve query perfo...
Torben Bach Pedersen, Christian S. Jensen, Curtis ...
CIDR
2009
157views Algorithms» more  CIDR 2009»
15 years 7 months ago
Capturing Data Uncertainty in High-Volume Stream Processing
We present the design and development of a data stream system that captures data uncertainty from data collection to query processing to final result generation. Our system focuse...
Yanlei Diao, Boduo Li, Anna Liu, Liping Peng, Char...
INFORMATICALT
2008
162views more  INFORMATICALT 2008»
15 years 6 months ago
Vague Rough Set Techniques for Uncertainty Processing in Relational Database Model
Abstract. The study of databases began with the design of efficient storage and data sharing techniques for large amount of data. This paper concerns the processing of imprecision ...
Karan Singh, Samajh Singh Thakur, Mangi Lal