In the last four years, daily deals have emerged from nowhere to become a multi-billion dollar industry world-wide. Daily deal sites such as Groupon and Livingsocial offer products and services at deep discounts to consumers via email and social networks. As the industry matures, there are many questions regarding the impact of daily deals on the marketplace. Important questions in this regard ...

A new, formal, role-based, framework for modeling and analyzing both real world and artificial organizations is introduced. It exploits static and dynamic properties of the organizational model and includes the (frequently ignored) environment. The transition is described from a generic framework of an organization to its deployed model and to the actual agent allocation. For verification and v...

We build upon previous work done in online shopping segmentation but follow a customer-revealed approach by using an explorative cluster analysis on a sample of 11,848 daily deal shoppers located in Switzerland. We identify six segments into which the daily deal shoppers can be categorized: recreational shoppers, mobile shoppers, traditionalists, bargain hunters, socializers, and convenience se...

In this paper we describe a novel attack method on product ciphers, the reflection attack. The attack method exploits certain similarities among round functions which have not been utilized in previous self similarity attacks. We give practical examples illustrating the power of the reflection attack on several ciphers such as GOST, DEAL and some variants of DES and Magenta. Many interesting an...

Currently, one of the loci communes economic history is that New Deal was right cocktail state-mandated policies to pull US economy out Great Depression begun in 1929. The relevance this interpretation has increased tremendously since crisis 2008 many compare with There a quasi-general demand for new Deal. This view contended by Austrian School Economics and other free-market oriented thinkers....