Online deal communities where members can submit deals offered by firms and where they share information on discounted products are currently enjoying great popularity. However, studies on drivers of deal popularity in these communities are still scarce. Although deal popularity may be attributed to a large extent to the discount price, an extensive investigation of why some deals are voted mor...

DEAL is a DES-based block cipher proposed by Knudsen. The block size of DEAL is 128 bits, twice as much as the DES block size. The main result of the current paper is a certificational attack on DEAL192, the DEAL variant with a 192-bit key. The attack allows a trade-off between the number of plaintext/ciphertext pairs and the time for the attacker’s computations. Nevertheless, the DEAL design p...

We present DEAL, a spoken dialogue system for conversation training under development at KTH. DEAL is a game with a spoken language interface designed for second language learners. The system is intended as a multidisciplinary research platform where challenges and potential benefits of combining elements from computer games, dialogue systems and language learning can be explored.

Any scheduling scheme for grid applications must make implicit or explicit assumptions about both the future behaviour of the application and the future availability and performance of grid resources. This paper describes an approach in which the future application behaviour is constrained by the use of algorithmic skeletons, facilitating modelling with a performance oriented process algebra, a...

This paper uses data from the popular television game-show, "Deal or No Deal?", to analyse the way individuals make choices under risk. In a unique approach to the problem, I present a formal game-theoretical model of the show in which both the contestant and the banker are modelled as strategic players. I use standard techniques to form hypotheses of how rational expected utility-maximisers wo...