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ICTCS
2007
Springer
14 years 1 months ago
Analyzing Non-Interference with respect to Classes
The information flow property of Non-Interference was recently relaxed into Abstract NonInterference (ANI), a weakened version where attackers can only observe properties of data,...
Damiano Zanardini
ICALP
2005
Springer
14 years 27 days ago
Tight Lower Bounds for Query Processing on Streaming and External Memory Data
We study a clean machine model for external memory and stream processing. We show that the number of scans of the external data induces a strict hierarchy (as long as work space is...
Martin Grohe, Christoph Koch, Nicole Schweikardt
MFCS
2005
Springer
14 years 27 days ago
Autoreducibility, Mitoticity, and Immunity
We show the following results regarding complete sets. • NP-complete sets and PSPACE-complete sets are many-one autoreducible. • Complete sets of any level of PH, MODPH, or th...
Christian Glaßer, Mitsunori Ogihara, Aduri P...
ICALP
2004
Springer
14 years 23 days ago
Games with Winning Conditions of High Borel Complexity
We first consider infinite two-player games on pushdown graphs. In previous work, Cachat, Duparc and Thomas [4] have presented a winning decidable condition that is Σ3-complete ...
Olivier Serre
ICALP
2003
Springer
14 years 18 days ago
Optimal Cache-Oblivious Implicit Dictionaries
We consider the issues of implicitness and cache-obliviousness in the classical dictionary problem for n distinct keys over an unbounded and ordered universe. One finding in this ...
Gianni Franceschini, Roberto Grossi