617 search results - page 98 / 124 » Semantic queries in databases: problems and challenges |
MIR
2010
ACM
14 years 2 months ago
2010
ACM
There is considerable research in the field of content-based medical image retrieval; however, few of the current systems investigate the relationship between the radiologists’...
DBISP2P
2003
Springer
14 years 2 months ago
2003
Springer
Abstract. Building distributed content–based publish/subscribe systems has remained a challenge. Existing solutions typically use a relatively small set of trusted computers as b...
SIGIR
2012
ACM
11 years 11 months ago
2012
ACM
Finding topic experts on microblogging sites with millions of users, such as Twitter, is a hard and challenging problem. In this paper, we propose and investigate a new methodolog...
DEBU
2006
13 years 8 months ago
2006
Performance tuning in modern database systems requires a lot of expertise, is very time consuming and often misdirected. Tuning attempts often lack a methodology that has a holist...
VLDB
2002
ACM
13 years 8 months ago
2002
ACM
Complex database queries require the use of memory-intensive operators like sort and hashjoin. Those operators need memory, also referred to as SQL memory, to process their input ...