As individuals become more experienced with information technologies (ITs), they become limited by well-learned behavioral routines for using an IT, which act to inhibit innovation. This “paradox of the active user” can prove problematic for organizations, which derive benefits when organizational ITs are used to their fullest potential. Thus, to advance research on individual differences and p...

We show that if a line ` is an isolated line transversal to a finite familyF of (possibly intersecting) balls in R and no two balls are externally tangent on ` then there is a subfamily G ⊆ F of size at most 12 such that ` is an isolated line transversal to G. We generalize this result to families of semi-algebraic ovaloids.

This year the University of Waterloo (UW) participated in the TREC Legal Interactive track and used the same process as last year except that this year we used three different human operators as opposed to only one as UW did last year. We participated in three topics: 301, 302, and 303. Relative to other participants, we performed well on one of the three topics. For two of the topics, low reca...

Many mobile learning (m-learning) systems have been promising that they would supersede current classroom or computer-based learning activities. This paper takes an exception to that approach, arguing that the formality of future learning experiences that m-learning can present may not ensure this vision as they stand. Instead, we see other goodness-of-fit of mobile learning as complemental lea...

Being responsible for more than half of the total traffic volume in the Internet, HTTP is a popular subject for traffic analysis. From our experiences with HTTP traffic analysis we identified a number of pitfalls which can render a carefully executed study flawed. Often these pitfalls can be avoided easily. Based on passive traffic measurements of 20.000 European residential broadband customers...

In this paper we describe the architecture and design of a network-stressing tool developed to simulate and evaluate the HTTP requests and responses of hundreds of users. There are two major issues that have to be considered when designing and implementing such a simulation tool, the reliability evaluation and the user “friendly” environment. In our application we use a mechanism exploiting Int...