We have conducted an empirical study of a number of computer security exploits and determined that the rates at which incidents involving the exploit are reported to the CERT can be modeled using a common mathematical framework. Data associated with three significant exploits involving vulnerabilities in phf, imap, and bind can all be modeled using the formula C = I + S pM where C is the cumula...

Topic modeling of fashion trends were analyzed using the MALLET toolkit. Harper’s Bazaar magazines from 1860-1899 were used (freely available online). This resulted in 20 topics with 4 characterizing words each. Trends over time were analyzed in several different ways using 100-topics and 20-topics.

Business processes are constantly affected by the environment in which they execute. The environment can change due to seasonal and financial trends. For organisations it is crucial to understand their processes and to be able to estimate the effects of these trends on the processes. Business process simulation is a way to investigate the performance of a business process and to analyse the pro...

Earth scientists have always been interested in the description and analysis of surfaces, particularly those which serve to describe mapped data. The methods used in this context fall into two categories, written descriptions (using terms such as dip, strike, plunge, isoclinal folding, attitude of axial plane, iaiiation etc.1 and mathematical approximations. To overcome the inadequacies of verb...

National reference standards (NRSs) for biologics are established through potency estimation by a multicenter joint study of standard materials used in the approval process for national lot release and quality control of vaccines, blood products, and other biologics. In this study, a stability evaluation was conducted to determine whether the potency of NRSs for six blood products was being mai...

introduction: studying the hydrological cycle, especially in large scales such as water catchments, is difficult and complicated despite the fact that the numbers of hydrological components are limited. this complexity rises from complex interactions between hydrological components and environment. recognition, determination and modeling of all interactive processes are needed to address this i...