807 search results - page 112 / 162 » Term Rewriting for Access Control |
101
click to vote
WWW
2009
ACM
16 years 4 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...
127
click to vote
CCS
2009
ACM
16 years 4 months ago
2009
ACM
Denial of Service (DoS) attacks are serious threats for network societies. For dealing with DoS attacks, Jakobsson and Juels first proposed the notion of useful client puzzles (UC...
132
Voted
CHI
2005
ACM
16 years 3 months ago
2005
ACM
As part of a comparative ethnographic study of everyday life of young professionals in London, Los Angeles, and Tokyo, we conducted a detailed survey of wallets and their contents...
117
Voted
CHI
2004
ACM
16 years 3 months ago
2004
ACM
Successfully staging a mixed reality game in which online players are chased through a virtual city by runners located in the real world requires extensive orchestration work. An ...
150
click to vote
PODS
2008
ACM
16 years 3 months ago
2008
ACM
We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...