617 search results - page 98 / 124 » Semantic queries in databases: problems and challenges |
185
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MIR
2010
ACM
15 years 11 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’...
167
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DBISP2P
2003
Springer
15 years 11 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...
206
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SIGIR
2012
ACM
13 years 8 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...
174
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DEBU
2006
15 years 6 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...
213
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VLDB
2002
ACM
15 years 5 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 ...