150 views107 votes14 years 11 months ago ISPDC 2010»
—Providing independent uniform samples from a system population poses considerable problems in highly dynamic settings, like P2P systems, where the number of participants and the...
90 views108 votes15 years 6 months ago ACSAC 2003»
Methods are presented to increase resiliency to server failures by migrating long running, secure TCP-based connections to backup servers, thus mitigating damage from servers disa...
182 views187 votes16 years 2 months ago ICDE 2008»
A reparable database management system has the ability to automatically undo the set of transactions that are corrupted by a human error or malicious attack. The key technical chal...
The agent paradigm can be seen as an extension of the notion of (active) objects by concepts like autonomy and cooperation. Mainstream object-oriented modeling techniques do not a...
— Recently, research on disconnected networks has been fostered by several studies on delay-tolerant networks, which are designed in order to sustain disconnected operations. We ...
101 views111 votes14 years 11 months ago JCO 2010»
Abstract Polynomial-time data reduction is a classical approach to hard graph problems. Typically, particular small subgraphs are replaced by smaller gadgets. We generalize this ap...
Recently, intellectual property protection (IPP) techniques attracted a great deal of attention from semiconductor, system integration and software companies. A number of watermar...
It is commonly agreed that Wireless Sensor Networks (WSN) is one of the technologies that better fulfills features like the ones required by Critical (Information) Infrastructures....
122 views105 votes15 years 5 months ago ICSE 1999»
We address the dependence of critical infrastructures— including electric power, telecommunications, finance and transportation—on vulnerable information systems. Our approach...
Online feedback-based rating systems are gaining popularity. Dealing with collaborative unfair ratings in such systems has been recognized as an important but difficult problem. T...