Draw a Line on Your PDA to Authenticate

Draw a line on your PDA to authenticate

The trend toward a highly mobile workforce and the ubiquity of graphical interfaces (such as the stylus and touch-screen) has enabled the emergence of graphical authentications in Personal Digital Assistants (PDAs) [1]. However, most of the current graphical password schemes are vulnerable to shoulder-surfing [2,3], a known risk where an attacker can capture a password by direct observation or ...

Poster: Draw a line on your PDA to authenticate

Empirical Algorithmics: draw your own conclusions

In an empirical comparisons of algorithms we might compare run times over a set of benchmark problems to decide which one is fastest, i.e. an algorithmic horse race. Ideally we would like to download source code for the algorithms, compile and then run on our machine. Sometimes code isn't available to download and sometimes resource isn't available to implement all the algorithms we want to stu...

On How to Draw a Graph

We give an overview of Tutte’s paper, “How to draw a graph”, that contains: (i) a proof that every simple 3-connected planar graph admits a straight-line embedding in the plane such that each face boundary is a convex polygon, (ii) an elegant algorithm for finding such an embedding, (iii) an algorithm for testing planarity, and (iv) a proof of Kuratowski’s theorem.

How to draw the line in biomedical research

The use of the least squares method to calculate the best-fitting line through a two-dimensional scatter plot typically requires the user to assume that one of the variables depends on the other. However, in many cases the relationship between the two variables is more complex, and it is not valid to say that one variable is independent and the other is dependent. When analysing such data resea...