Shawn Koppenhoefer | EPFL Graph Search

[ed: See the much more complete shawnkoppenhoefer.com pages] Originally from Canada, born in 1968, Shawn completed a double-honours degree (BSc in ‘Computer-Science’ and ‘Combinatorics & Optimization’ 1990) at the Faculty of Mathematics of the University of Waterloo. Six years later, at the EPFL while teaching the 1st-year course Introduction to Networks and Protocols, he published his doctoral thesis (PhD in Computer-Science ). He was invited to become 1st assistant in the Electrical Engineering Dept. at EPFL working on telecommunication-architectures with Alcatel/Orange/Siemens, developed relational databases at Charles Veillon S.A., worked on e-government applications (civilian and military) at Networkers S.A., performed system-administration/teaching/web-development at the World Health Organization collaborating center GFMER in Geneva, worked independently developing a few iOS applications in Objective-C, and finally returned to the EPFL and UNIL to do database-support, and IT-support. In addition to his work at LMOM lab LMOM.epfl.ch, Shawn also did a 3year stint at the LTP lab (principally Windows lab) http://LTP.epfl.ch, and at the ARVE lab replaced since with "DavisGroup" (Mac/Linux)(wp.unil.ch/davisgroup). He can be found in the usual places on social media (TW,FB,YT,FL,PI, LI, GoogleScholar, ResearcherID...).

Effectiveness of a Clinically Integrated e-Learning Course in Evidence-Based Medicine for Reproductive Health Training A Randomized Trial

Shawn Koppenhoefer

Context For evidence-based practice to embed culturally in the workplace, teaching of evidence-based medicine(EBM) should be clinically integrated. In low-middle-in come countries (LMICs) there is a scarcity of EBM-trained clinical tutors, lack of protected time for teaching EBM, and poor access to relevant databases in languages other than English. Objective To evaluate the effects of a clinically integrated e-learning EBM course incorporating the World Health Organization( WHO) Reproductive Health Library(RHL) on knowledge, skills, and educational environment compared with traditional EBM teaching. Design, Setting, and Participants International cluster randomized trial conducted between April 2009 and November 2010 among postgraduate trainees in obstetrics-gynecology in 7 LMICs (Argentina, Brazil, Democratic Republic of the Congo, India, Philippines, South Africa, Thailand). Each training unit was randomized to an experimental clinically integrated course consisting of e-modules using the RHL for learning activities and trainee assessments (31 clusters, 123 participants) or to a control self-directed EBM course incorporating the RHL (29 clusters, 81 participants). A facilitator with EBM teaching experience was available at all teaching units. Courses were administered for 8 weeks, with assessments at baseline and 4 weeks after course completion. The study was completed in 24 experimental clusters (98 participants) and 22 control clusters (68 participants). Main Outcome Measures Primary outcomes were change in EBM knowledge (score range, 0-62) and skills (score range, 0-14). Secondary outcome was educational environment (5-point Likert scale anchored between 1 [strongly agree] and 5 [strongly disagree]). Results At baseline, the study groups were similar in age, year of training, and EBM-related attitudes and knowledge. After the trial, the experimental group had higher mean scores in knowledge (38.1 [95% CI, 36.7 to 39.4] in the control group vs 43.1 [95% CI, 42.0 to 44.1] in the experimental group; adjusted difference, 4.9 [95% CI, 2.9 to 6.8]; P

Amer Medical Assoc2012

The Impact of the Internet on Telecommunication Architectures

Jean-Pierre Hubaux, Shawn Koppenhoefer, Jean-Yves Le Boudec

The ever-growing popularity of the Internet is dramatically changing the landscape of the communications market place. The two separate worlds of the Internet and Telecommunications are converging. The respective advantages of the two environments are being integrated to fulfill the promise of the information super-highways. In this paper, we examine the impact of the Internet on the main telecommunication architectures, namely the IN, the TMN and TINA. There are two new tendencies for implementing telephony services in combination with the Internet: running part of the control sys tem over the Internet, or conveying both the user data and the control information over the Internet. We examine these two trends, and elaborate on possible ways of salvaging the best parts of the work achieved by the TINA-Consortium in the Internet context.

1999

Modelling and Testing Object-Oriented Distributed Systems with Linear-time Temporal Logic

Jean-Pierre Hubaux, Shawn Koppenhoefer

Numerous proposals for applying temporal logic to the specification and verification of object-oriented systems have appeared in the past several years. Although various temporal models have been proposed for the requirements analysis of object-oriented distributed systems, there is no similar amount of work for the design- and implementation phase. We present a formal model for the design- and implementation stage which reflects practical requirements and is yet sufficiently general to be applied to a wide range of systems. In our model, which relies on event-based behavioral abstraction, we use linear-time temporal logic as the underlying formalism for the specification of behavioral constraints. We show that although temporal logic is a powerful tool for behavior specifications, it does not have the expressive power required for non-trivial object systems. Specifically, in an object-system it is often essential to express procedural dependencies rather than simple temporal relationships for which we introduce two novel operators. In a case study we demonstrate the practical relevance and applicability of our model.

1998

Effectiveness of a Clinically Integrated e-Learning Course in Evidence-Based Medicine for Reproductive Health Training A Randomized Trial

Shawn Koppenhoefer

Amer Medical Assoc2012