Understanding movement parties through their communication

Authenticating users through their arm movement patterns

In this paper, we propose four continuous authentication designs by using the characteristics of arm movements while individuals walk. The first design uses acceleration of arms captured by a smartwatch’s accelerometer sensor, the second design uses the rotation of arms captured by a smartwatch’s gyroscope sensor, third uses the fusion of both acceleration and rotation at the featurelevel and f...

Understanding Online Communication through Arab Eyes

As we strive towards a unified theory of online communication, we need to understand the role of cultural values in technology adoption and design. Here, in the spirit of defamiliarization, we present key findings of a study of Arab couples using new technologies to maintain long-distance relationships. We demonstrate how Western values are designed into the technology, and how Arabic values pl...

Understanding Specification Languages through Their Model Theory

This paper studies the design of specification languages through their model theory. We show how language constructs and specification idioms are deeply rooted in the underlying model theory. We also show that some problems are fundamentally difficult to specify due to the underlying foundation of the language. The languages we study are Alloy, Maude, and FORMULA. FORMULA attempts to handle a l...

Understanding Blazar Jets Through Their Multifrequency Emission

Being dominated by non-thermal (synchrotron and inverse Compton) emission from a relativistic jet, blazars offer important clues to the structure and radiative processes in extragalactic jets. Crucial information is provided by blazars’ spectral energy distributions from radio to gamma-rays (GeV and TeV energies), their trends with bolometric luminosity, and their correlated variability propert...

Understanding Movement, Pattern, and Process on Earth Through Isotope Mapping