4118 search results - page 655 / 824 » Mechanisms for usage control |
114
click to vote
WWW
2009
ACM
16 years 5 months ago
2009
ACM
We present a new CAPTCHA which is based on identifying an image's upright orientation. This task requires analysis of the often complex contents of an image, a task which hum...
WWW
2008
ACM
16 years 5 months ago
2008
ACM
All information exchange on the Internet ? whether through full text, controlled vocabularies, ontologies, or other mechanisms ? ultimately requires that that an information provi...
132
click to vote
HPCA
2007
IEEE
16 years 5 months ago
2007
IEEE
Transactional Memory (TM) provides mechanisms that promise to simplify parallel programming by eliminating the need for locks and their associated problems (deadlock, livelock, pr...
234
click to vote
SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
We describe an approach for pipelining nested data collections in scientific workflows. Our approach logically delimits arbitrarily nested collections of data tokens using special...
220
click to vote
SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
Many scenarios involve merging of two B-tree indexes, both covering the same key range. Increasing demand for continuous availability and high performance requires that such mergi...