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DBPL
1993
Springer
141views Database» more  DBPL 1993»
15 years 11 months ago
Some Properties of Query Languages for Bags
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...
Leonid Libkin, Limsoon Wong
CICLING
2010
Springer
15 years 11 months ago
Word Length n-Grams for Text Re-use Detection
Abstract. The automatic detection of shared content in written documents –which includes text reuse and its unacknowledged commitment, plagiarism– has become an important probl...
Alberto Barrón-Cedeño, Chiara Basile...
CCS
2007
ACM
15 years 11 months ago
Analyzing network traffic to detect self-decrypting exploit code
Remotely-launched software exploits are a common way for attackers to intrude into vulnerable computer systems. As detection techniques improve, remote exploitation techniques are...
Qinghua Zhang, Douglas S. Reeves, Peng Ning, S. Pu...
CCS
2006
ACM
15 years 11 months ago
An effective defense against email spam laundering
Laundering email spam through open-proxies or compromised PCs is a widely-used trick to conceal real spam sources and reduce spamming cost in underground email spam industry. Spam...
Mengjun Xie, Heng Yin, Haining Wang
AFRIGRAPH
2003
ACM
15 years 11 months ago
Efficient clustering and visibility calculation for global illumination
Using a radiosity method to estimate light inter-reflections within large scenes still remains a difficult task. The two main reasons are: (i) the computations entailed by the rad...
Daniel Meneveaux, Kadi Bouatouch, Gilles Subrenat,...