4051 search results - page 752 / 811 » Aggregation |
99
Voted
VLDB
1997
ACM
15 years 6 months ago
1997
ACM
Data is often stored in summarized form, as a histogram of aggregates (COUNTs, SUMs, or AVeraGes) over speci ed ranges. We study how to estimate the original detail data from the ...
129
Voted
VLDB
1997
ACM
15 years 6 months ago
1997
ACM
Sorting is a memory intensive operation whose performance is greatly affected by the amount of memory available as work space. When the input size is unknown or available memory s...
123
Voted
CHI
1993
ACM
15 years 6 months ago
1993
ACM
An adaptive user interface relies, to a large extent, upon an adequate user model (e.g., a representationof user-expertise). However, building a user model may be a tedious and ti...
180
Voted
COBUILD
1998
Springer
15 years 6 months ago
1998
Springer
Abstract. As the amount of information and communication increases dramatically new working environments must provide efficient mechanisms to maximize the benefits of these develop...
124
Voted
ASSETS
2007
ACM
15 years 6 months ago
2007
ACM
Web browsing is inefficient for blind web users because of persistent accessibility problems, but the extent of these problems and their practical effects from the perspective of ...