Sciweavers

394 search results - page 66 / 79
» Conditional Preferences: A New Semantics for Database Querie...
Sort
View
VLDB
1990
ACM
106views Database» more  VLDB 1990»
13 years 11 months ago
The Time Index: An Access Structure for Temporal Data
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
Ramez Elmasri, Gene T. J. Wuu, Yeong-Joon Kim
ICDE
2007
IEEE
121views Database» more  ICDE 2007»
13 years 11 months ago
Evaluating Different Ranking Functions for Context-Based Literature Search
Context-based literature digital library search is a new search paradigm that creates an effective ranking of query outputs by controlling query output topic diversity. We define ...
Nattakarn Ratprasartporn, Sulieman Bani-Ahmad, Ali...
DEXAW
1999
IEEE
176views Database» more  DEXAW 1999»
13 years 11 months ago
Windsurf: Region-Based Image Retrieval Using Wavelets
In this paper we present WINDSURF (Wavelet-Based Indexing of Images Using Region Fragmentation), a new approach to content-based image retrieval. The method uses the wavelet trans...
Stefania Ardizzoni, Ilaria Bartolini, Marco Patell...
ICDE
2002
IEEE
129views Database» more  ICDE 2002»
14 years 8 months ago
Active XQuery
Besides being adopted as the new interchange format for the Internet, XML is finding increasing acceptance as a native data repository language. In order to make XML repositories ...
Angela Bonifati, Daniele Braga, Alessandro Campi, ...
ICWE
2004
Springer
14 years 26 days ago
Personalisation Services for Self E-learning Networks
This paper describes the personalisation services designed for self e-learning networks in the SeLeNe project. A self e-learning network consists of web-based learning objects that...
Kevin Keenoy, Alexandra Poulovassilis, Vassilis Ch...