It has been a busy month of conferencing. First was AFRICON’11 in Livingstone in Zambia (13-15 Sept.) and its special session on Robotics and AI in Africa, where I presented a paper on bottom-up ontology development of bio-ontologies ). Then the Masters AI spring School (MAIS’11) hosted by UKZN (26-30 Sept.), of which I was the main organizer and where I gave a presentation on ontology-driven formal conceptual data modeling for biological data analysis. And I just returned from the South African Institute of Computer Scientists and Information Technologists Annual Research Conference (SAICSIT’11) in Cape Town (3-5 Oct.), where I presented two papers (also blogged about before: on rough subsumption reasoning  and keys in UML class diagrams ). The remainder of this post contains a quick recap of each.
I think back at this conference with mixed emotions: the logistics were quite lousy and very expensive, but I’ve made several new connections and it was good to be informed about who’s working on what in Africa. Overall, and going by the sessions I attended, it gave me the impression of a workshop-level event rather than ‘the’ major conference on the continent it is claimed to be. Looking through my notes now, some of the noteworthy items are Dietmar Dietrich’s keynote on the questions if IT is to/can be a major contributor to solve the energy challenge. (Green IT seems to be the new up and coming hot topic in research and engineering.). The Robotics and AI sessions and dialog session I attended had several showcases of robots, Tracey Booysen from UCT presented how to build the, thus far cheapest, swarm robot (60 USD) , and Alexander Ferrein described the experiment of high school students preparing and participating in Robocup Junior . Other topics were as diverse as smart carpets, water quality monitoring with live sensors made from algae, the role (if any) for robotics in sustainable development, and ubiquitous healthcare with mobile phones.
Slightly off-topic: the walk at the top of the Victoria Falls was doable even for me and the microlight flight over the falls was great.
MAIS followed three previous yearly winter/spring schools (MOWS’08, MOSS’09, MOWS’10), though this time it was held in Durban instead of Pretoria and the scope was broader than ontologies.
Alessandro Artale, from my former employer the Free University of Bozen-Bolzano, gave his Formal Methods course to participants from UKZN, UNISA, CSIR-Meraka, and UP in the mornings, augmenting the theoretical aspects with practical’s with NuSMV in the labs, and he closed with recent results on formal temporal conceptual data modelling with light-weight temporal DLs.
The afternoons were filled with tutorials and research presentations. Nelishia Pillay from UKZN gave a well-prepared tutorial on hyper heuristics and Sergio Tessaris, also from FUB, gave a tutorial on SAT and efficient Boolean reasoning (online abstracts). The research presentations by students and researchers covered topics such as formal conceptual data modeling, non-monotonic reasoning, event processing of video, ICT for the sugar cane supply chain, belief revision, foundational ontologies, optimization, and digital forensics. We were short on time with all sessions and continued the discussions during the breaks. Hopefully the ongoing research activities and new ideas the participants were exposed to and exchanged with each other will lead to fruitful collaboration.
UPDATE (17-10): Phumelele Mavaneni, intern journalist from the UKZN Online e-newspaper, wrote an article about MAIS’11 (vol 5, issue 39), and on the right is a group photo with some of the participants.
It was my first SAICSIT attendance, and it gave me a positive impression, both regarding papers presented and the people who attended. The event was quite selective with a 33% acceptance rate for full papers and 20% for short papers. The ambiance of the venue was good to meet the few people I’d met before and become acquainted with fellow CS & IT researchers and the system in South Africa.
The sessions were ‘mixed’, in that a talk about, say, static typing with value space-based subtyping  was followed by media download in South African taxis , and software-defined radio , classifier fusion strategies , and an ICT for rural development evaluation framework  were all put in the same session. The shift was a bit odd at times, but it also contributed to a broader-than-usual exposure of CS and IT research. Caroline Pade-Khene was actually quite skeptical about ICT4D—or: it is at best a “working hypothesis” —which partially shone through some of the ICT4D paper presentations; it is not easy to figure out what to measure, how, and even the kinds of things being measured are changing over time. And gathering empirical data is time-consuming and faces unexpected obstacles, as Gary Marsden described in his entertaining presentation about the media downloads . My own papers [2, 3] were on the theory-side of CS & IT, were well-received, and ‘brought out in the open’ a couple of attendees with an interest in ontologies.
Now it’s back to the regular activities of, mainly, teaching theory of computation and researching so as to have some results for the upcoming submission deadline season (and also to submit that journal paper).
(note: the non-linked papers are not online [yet])
 Keet CM. Bottom-up ontology development reusing semi-structured life sciences diagrams. AFRICON’11 — Special Session on Robotics and Artificial Intelligence in Africa, Livingstone, Zambia 13-15 September, 2011. IEEE Xplore.
 Keet, C.M. Rough Subsumption Reasoning with rOWL. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, South Africa, October 3-5, 2011. ACM Conference Proceedings, pp 133-140.
 Keet, C.M. Enhancing Identification Mechanisms in UML Class Diagrams with Meaningful Keys. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, October 3-5, 2011. ACM Conference Proceedings, pp 283-286.
 Booysen, T., Rieger, M., Ferrein, A. Towards inexpensive robots for science & technology teaching and education in Africa. AFRICON’11 — Special Session on Robotics and Artificial Intelligence in Africa, Livingstone, Zambia 13-15 September, 2011. IEEE Xplore.
 Ferrein, A., Marais, S., Potgieter, A., Steinbauer, G. Robocup Junior: a vehicle for S&T education in Africa? AFRICON’11 — Special Session on Robotics and Artificial Intelligence in Africa, Livingstone, Zambia 13-15 September, 2011. IEEE Xplore.
 Paar, A., Gruner, A. Static typing with value space-based subtyping. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, South Africa, October 3-5, 2011. ACM Conference Proceedings, pp 177-186.
 Smith, G., Marsden, G. Providing media download services in African taxis. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, South Africa, October 3-5, 2011. ACM Conference Proceedings, pp 215-223.
 Winberg, S., Langman, A., Scott, S. The RHINO Platform – Charging towards innovation and skills development in software defined radio. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, South Africa, October 3-5, 2011. ACM Conference Proceedings, pp 334-337.
 Lutu, P.E.N. Empirical comparison of four classifier fusion strategies for positive-versus-negative ensembles. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, South Africa, October 3-5, 2011. ACM Conference Proceedings, pp 302-305.
 Pade-Khene, C., Sewry, D. Proposed Stages of a Rural ICT Comprehensive Evaluation Framework in ICT for Rural Development Projects. SAICSIT Annual Research Conference 2011 (SAICSIT’11), Cape Town, South Africa, October 3-5, 2011. ACM Conference Proceedings, pp 326-329.