756 search results - page 118 / 152 » Leveraging the CAPTCHA Problem |
LAWEB
2009
IEEE
14 years 2 months ago
2009
IEEE
—Computer science academics and professionals typically consider their contributions in terms of the algorithms, applications, and techniques that they develop. Yet equally impor...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
We study the problem of continuous monitoring of top-k queries over multiple non-synchronized streams. Assuming a sliding window model, this general problem has been a well addres...
CIVR
2009
Springer
14 years 2 months ago
2009
Springer
Semantic concept detectors are often individually and independently developed. Using peripherally related concepts for leveraging the power of joint detection, which is referred t...
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
When search is against structured documents, it is beneficial to extract information from user queries in a format that is consistent with the backend data structure. As one step...
ICDE
2007
IEEE
14 years 2 months ago
2007
IEEE
Trust management is a form of access control that uses delegation to achieve scalability beyond a single organization or federation. However, delegation can be difficult to contr...