12 search results - page 1 / 3 » Column Stores for Wide and Sparse Data |
CIDR
2007
13 years 6 months ago
2007
While it is generally accepted that data warehouses and OLAP workloads are excellent applications for column-stores, this paper speculates that column-stores may well be suited fo...
ICDE
2012
IEEE
11 years 7 months ago
2012
IEEE
— XML is commonly supported by SQL database systems. However, existing mappings of XML to tables can only deliver satisfactory query performance for limited use cases. In this pa...
SIGMOD
2007
ACM
14 years 4 months ago
2007
ACM
A "sparse" data set typically has hundreds or even thousands of attributes, but most objects have non-null values for only a small number of these attributes. A popular ...
ICDE
2006
IEEE
14 years 5 months ago
2006
IEEE
"Sparse" data, in which relations have many attributes that are null for most tuples, presents a challenge for relational database management systems. If one uses the no...
SDM
2011
SIAM
12 years 7 months ago
2011
SIAM
Latent semantic analysis (LSA), as one of the most popular unsupervised dimension reduction tools, has a wide range of applications in text mining and information retrieval. The k...