104 search results - page 20 / 21 » Database Trends and Directions: Current Challenges and Oppor... |
SIGMOD
2009
ACM
14 years 6 months ago
2009
ACM
Schema evolution poses serious challenges in historical data management. Traditionally historical data have been archived either by (i) migrating them into the current schema vers...
ICDAR
2009
IEEE
14 years 1 months ago
2009
IEEE
In recent years, many document image retrieval algorithms have been proposed. However, most of the current approaches either need good quality images or depend on the page layout ...
SIGMOD
2008
ACM
14 years 6 months ago
2008
ACM
A major problem in detecting events in streams of data is that the data can be imprecise (e.g. RFID data). However, current state-ofthe-art event detection systems such as Cayuga ...
PVLDB
2010
13 years 1 months ago
2010
The ever-increasing number of intrusions in public and commercial networks has created the need for high-speed archival solutions that continuously store streaming network data to...
SIGMOD
2004
ACM
14 years 6 months ago
2004
ACM
Ranking is an important property that needs to be fully supported by current relational query engines. Recently, several rank-join query operators have been proposed based on rank...