Abstract
In the context of the versatile link project, a set of semiconductor lasers were studied and modelled aiming at the optimization of the laser driver circuit. High frequency measurements of the laser diode devices in terms of reflected and transmission characteristics were made and used to support the development of a model that can be applied to study their input impedance characteristics and light modulation properties. Furthermore the interaction between the laser driver, interconnect network and the laser device itself can be studied using this model. Simulation results will be compared to measured data to validate the model and methodology.

Abstract
Kolmogorov complexity measures the amount of information in a string as the size of the shortest program that computes the string. The Kolmogorov structure function divides the smallest program producing a string in two parts: the useful information present in the string, called sophistication if based on total functions, and the remaining accidental information. We formalize a connection between sophistication (due to Koppel) and a variation of computational depth (intuitively the useful or nonrandom information in a string), prove the existence of strings with maximum sophistication and show that they are the deepest of all strings.

Abstract
Recently topics such as affective computing and multichannel multimedia distribution have gained the attention and investment of both industry and academics. The proposed system joins these domains so that ubiquitous system can be potentiated by means of online user emotion assessment based on real-time user's biosignals. It was used IAPS as a emotional library for controlled visual stimuli and biosignals were collected in real-time - heartbeat rate and skin conductance - in order to online assess the user's emotional state through Russell's Circumplex Model of Affect. To improve usability and session setup, a distributed architecture was used so that software models might be physically detached. The conducted experimental sessions and the validation interviews supported the system's efficiency not only in real-time discrete emotional state assessment but also considering the emotion inducing process. The future work consists in replicating the success in multi-format multimedia contents without pre-defined emotional metadata.

Abstract
Emotion's definition, identification, systematic induction and efficient and reliable classification have been themes to which several complementary knowledge areas such as psychology, medicine and computer science have been dedicating serious investments. This project consists in developing an automatic tool for emotion assessment based on a dynamic biometric data acquisition set as galvanic skin response and electroencephalography arc practical examples. The output of standard emotional induction methods is the support for classification based on data analysis and processing. The conducted experimental sessions, alongside with the developed support tools, allowed the extraction on conclusions such as the capability of effectively performing automatic classification of the subject's predominant emotional state. Self assessment interviews validated the developed tool's success rate of approximately 75%. It was also experimentally strongly suggested that female subjects are emotionally more active and easily induced than mates.

Abstract
Automation systems according to IEC 61850 are a powerful solution for station automation. Engineering of such distributed systems is however a non-trivial task which requires different approaches and enhanced tool support. In this paper the authors (i) present how IEC 61850 is viewed and is being adopted by a utility and vendor, (ii) discuss its engineering potential and current issues, (iii) point-out global requirements for next generation tools, (iv) present the InPACT project which is tackling some of these concerns and (v) propose key elements of visual languages as one contributing enhancement.

Abstract
Although some agile projects can succeed without producing any documentation at all, others may require a little more. Best practices of agile documentation suggest producing just enough documentation, at just the right time, and for just the right audience. It is not by coincidence that wikis and agility share goals of simplicity, flexibility, and open collaboration, thus being natural documentation tools to agile projects. When well integrated with other tools, wikis provide open collaboration, quick feedback, easy navigability, integrated contents, and a low barrier for developers to document. In this hands-on tutorial, participants will learn how to adapt and use a wiki to better support software projects. Copyright © 2009 ACM.