There is at present a major global focus on machine learning involving billions of dollars in investment and revenue; AI and by implication machine learning, is set to change the working of the world, including Africa. Deep Learning, as a subset of the machine learning toolbox and defined as artificial neural networks with many levels of abstraction, has been a driving force behind the renaissance of AI, helping us to build self-driving cars, accurate speech recognition, computers that can understand images, and much more (see also this Deep Learning post). The application of machine learning is also growing in leaps and bounds on the African continent and is being further strengthened by a range of exciting activities and initiatives such as the Deep Learning Indaba (sponsored by Google, amongst others), multiple Machine Intelligence Institute of Africa (MIIA) events (including a recent successful Deep Learning Hackathon), the 1st AI Africa Conference, Data Science Nigeria's 1st National Summit on Big Data Economy and 2nd Data Science Bootcamp, MIIA's representation at the Global Symposium of AI and Inclusion, and other Machine Learning events. What an eventful year for AI and Deep Learning in Africa so far with some more exciting events to follow! See more details below.
Although it is clear that we have just scratched the surface of Deep Learning's application potential (especially dealing with unstructured data such as text, video, audio, and boosted by massive amounts of data and computational power), the same Deep Learning article also describes some of the limitations of Deep Learning and the need for a 3rd AI wave that involves contextual adaptation which focuses on constructing reliable, explanatory models of real-world phenomena using sparse data, like humans do. See also, for example, DARPA's explainable AI project, the Keras blog's The Future of Deep Learning (the use of "meta learners" and the blending of "algorithmic modules" providing formal reasoning, search, and abstraction capabilities, with "geometric modules" providing informal intuition and pattern recognition capabilities), Deep Learning is not the AI future (emphasizing some of the issues with Deep Learning including explainability), and Is AI Riding a One-Trick Pony. With all the talent and investment going into AI research and development, one can expect the AI toolbox to be tremendously enriched over the next few years and foreseeable future.
Although Africa's contributions to AI research and development have been relatively limited thus far (we expect this to change soon with the fast growing collaboration across the continent and the many initiatives such as those highlighted in this post to strengthen the foundations of African machine learning), there have been many successful applications of AI technology in Africa: Apart from the many AI startups, platform businesses, non-profit organizations and corporates across the continent that are applying AI in innovative ways, there is also Africa's contribution to Big Science, in particular in radio astronomy through the square kilometre array (SKA) telescope, that will advance the state of machine learning to provide new insights into the workings of the universe. Where health services and advice is limited, especially for HIV and AIDS, machine learning is used to shorten response times in mobile question-answering services, allowing these services to reach more people. Another example is in the area of support of food security of our African nations where computer vision is used to detect cassava root disease in images captured using low-cost mobile phones. We also have non-profit organizations such as the Machine Intelligence Institute of Africa (MIIA) which is an innovative community and accelerator for Machine Intelligence and Data Science research and applications to help transform Africa. On the AI business front, we also had some early successes such as my previous AI company, CSense Systems, which was South Africa's first AI software and services company to be sold to a multinational company (it was acquired by General Electric in 2011). Some platform businesses such as Jumo and Zoona have also demonstrated successful Data Science applications to enable financial inclusion on the African continent. We are also very excited about AI startups such as Cortex Logic, aiming to be the leading AI engine provider for platform businesses and corporates on the African continent and beyond, and Bennit.AI, which provides an intelligent virtual production assistant to enhance the productivity and safety of industrial users.
Whereas we are clearly in a massive AI hype cycle with lots of debates about the future impact of AI (see also Will AI kill us all after taking our jobs? for a sober analysis), our focus is on shaping a better future in the smart technology era and using exponential technologies such AI to help transform Africa. As Homo Sapiens in the age of networks, we'll need collective wisdom to build a better future for us all in the smart technology era. As Geoff Hinton said: "In a sensibly organized society, if you improve productivity there is room for everybody to benefit. The problem is not the technology, but the way the benefits are shared out". As someone actively working on AI & its applications, I agree with the perspectives of my AI expert colleagues. With significant benefits and potential danger on the line for us all, a rational balanced approach is needed where we systematically first address short- to medium term concerns around AI's impact on jobs, weapon systems, etc. and not get ahead of ourselves.
Now let's get back to some of the exciting AI events on the African continent.....
The first Deep Learning Indaba, a gathering of our African community to teach, learn and debate the state-of-the-art in machine learning and artificial intelligence, took place from 10 to 15 September 2017 at the University of the Witwatersrand, Johannesburg, South Africa. As the founder of the Machine Intelligence Institute of Africa (MIIA), it was very exciting to participate, amongst many other MIIA members, in this awesome event! The aim during the week was to build an understanding of the principles and practice of modern machine learning, in particular covering topics such as the fundamentals of Machine Learning, Convolutions and Recurrent Neural Networks, Unsupervised Learning and Generative Models, and Reinforcement Learning, Agents and Applications. Of equal importance was the creation of an environment that enables continental collaborations, a raised awareness of the breadth of machine learning career-paths, and that fosters new understandings and friendships.
I’m very proud of the Africans on the organizing and advisory committee that helped to make this happen! They included South African representatives from Google DeepMind (in particular, Shakir Mohamed and Ulrich Paquet) as well as Google Brain (Stephan Gouws) that have formed a partnership with several South African researchers from University of Witwatersrand (Richard Klein), Stellenbosch University (Willie Brink), and the CSIR (Benjamin Rosman, Vukosi Marivate, and Nyalleng Moorosi) to help organise this event, which was supported by an excellent advisory board (Nando de Freitas, Ben Herbst, Bonolo Mathibela, George Konidaris, and Bubacarr Bah). The speakers at this event also did an awesome job! Over the five days, the Indaba have brought leaders of the field to Johannesburg to teach and mentor students, academics, researchers and entrepreneurs in the theory and practice of deep learning. Given that more than 300 attendees have hailed from 23 African countries, as well as other countries across the world, this event was one of the largest machine learning teaching events globally. Beyond technical exchange, the Deep Learning Indaba has also created opportunities for new research connections, foster a better understanding of the variety of career paths in the field, as well as new friendships, perspectives and backgrounds, to help take the steps to realizing a more diverse, racially-representative, and multicultural machine learning community.
Deep Learning Indaba 2017 Resources:
We had some really exciting MIIA events this year (see also this post), but the Deep Learning Hackathon in September at the Digital Innovation Zone (The DIZ) in Johannesburg was one of the highlights for sure! The hackathon followed the Deep Learning Indaba and fitted in with the Deep Learning theme for the week. We had fantastic participation by all involved - participants, organizers, sponsors, and judges. A special thanks to Alex Conway and Chris Currin for their brilliant work not only to prepare the computer vision challenge (from a deep learning and data preparation perspective), but also their participation and support right through the day. We had a record breaking result, lots of learning and lots of fun. Thanks also to IBM and Cortex Logic for sponsoring both MIIA events on 15 and 16 September.
The challenge for the Deep Learning Hackathon was a computer vision related problem where the task was to identify potholes in images. The first image below provides a summary of the problem and why it is important within the South African transport and road safety context. The second image provide some details about the hackathon challenge itself. See more details about the full day event here.
Computer Vision Challenge: Pothole identification
The hackathon problem was based upon the paper entitled 'Detecting potholes using simple image processing techniques and real-world footage', authored by S. Nienaber, M.J. Booysen and R.S. Kroon from Stellenbosch University (SU). In order to provide a reference for the Deep Learning participants, the published results from SU provided an excellent benchmark. As described in the summary below, SU was able to detect potholes with a precision of 81.8% and recall of 74.4.%.
Stellenbosch University Benchmark
DETECTING POTHOLES USING SIMPLE IMAGE PROCESSING TECHNIQUES AND REAL-WORLD FOOTAGE
Nienaber, S. ; Booysen, Marthinus J. ; Kroon, R. S.
34th Annual Southern African Transport Conference SATC 2015 - Theme - Transport: Working together to deliver – ‘SAKHA SONKE', 6 to 9 July 2015, CSIR International Convention Centre, Pretoria, South Africa - http://scholar.sun.ac.za/handle/10019.1/97191
The original proceedings are available at http://repository.up.ac.za/handle/2263/5201
Potholes are a nuisance, especially in the developing world, and can often result in vehicle damage or physical harm to the vehicle occupants. Drivers can be warned to take evasive action if potholes are detected in real-time. Moreover, their location can be logged and shared to aid other drivers and road maintenance agencies. This paper proposes a vehicle-based computer vision approach to identify potholes using a window-mounted camera. Existing literature on pothole detection uses either theoretically constructed pothole models or footage taken from advantageous vantage points at low speed, rather than footage taken from within a vehicle at speed. A distinguishing feature of the work presented in this paper is that a thorough exercise was performed to create an image library of actual and representative potholes under different conditions, and results are obtained using a part of this library. A model of potholes is constructed using the image library, which is used in an algorithmic approach that combines a road colour model with simple image processing techniques such as a Canny filter and contour detection. Using this approach, it was possible to detect potholes with a precision of 81.8% and recall of 74.4.%.
Training & Test Data and Python Notebooks
The photos below shows a number of the teams working on the problem throughout the day...
Deep Learning Hackathon Results
Model accuracy on Test Data (top 7 teams):
1. Jandre Marais - 85.58% --> First Prize (improved on the Stellenbosch University benchmark)
2. aiThenticate Team - 73.03% --> Second Prize
3. ThinkSmart Team - 73.00% --> Third Prize
4. Urban Team - 70.97%
5. ThinkData Team - 61.00%
6. HackOverflow Team - 58.06%
7. Shallow Learning Team - 57.51%
1. Shallow Learning Team
The MIIA event on the 15th of September not only served as a precursor to the Deep Learning Hackathon, but also some excellent presentations on some Deep Learning Applications. See links below for details.
MIIA Event on Friday, 15 September 2017 @ The DIZ, 111 Smit Street, Braamfontein, Johannesburg
• "Introduction and MIIA update", Dr Jacques Ludik, MIIA, Cortex Logic, Bennit.AI - presentation
• "Info session for Deep Learning Hackathon on 16 September", Alex Conway, Founder & CTO, NumberBoost - see Computer Vision Challenge
• "Convolutional Neural Networks for Computer Vision Applications", Alex Conway, Founder & CTO, NumberBoost - presentation
• “Conversational Systems: Beyond the Interface”, Chris Currin, PhD Computational Neuroscience candidate at UCT - presentation
• "Deep Learning and its Applications”, Dr Jacques Ludik, MIIA, Cortex Logic, Bennit.AI - presentation
MIIA Events page: http://machineintelligenceafrica.org/activities/events/
MIIA will be represented at the inaugural AI Africa Conference on 26 and 27 October 2017 at Sandton Convention Centre, Johannesburg, where Dr Jacques Ludik will be delivering a keynote address on "AI in Africa - Past, Present & Future" as well as a presentation on "Operationalizing of AI and Big Data & Analytics to help businesses thrive in the Smart Technology Era". The event is aimed at bringing together, under one roof, all stakeholders in AI on the African continent for the purposes of networking, enhancing knowledge and sharing new ideas and emerging trends. More details about this event will be made available soon.
Download the Conference Brochure: AI Africa Conference Brochure
Download the Registration Form: AI Africa Conference Registration Form
In the News: The "1st AI Africa Conference"
Earlier this year MIIA has partnered with Data Science Nigeria and participated in their first Data Science Bootcamp (see Machine Intelligence Institute of Africa collaboration with Data Science Nigeria). In follow-up to this, Data Science Nigeria is having two major upcoming events during 12-15 October 2017, its 1st National Big Data Economy Summit & 2nd Data Science Bootcamp in Lagos, Nigeria. See below for more details about both events. MIIA has also provided an introductory video to the Data Science Nigeria's 1st National Big Data Economy Summit & 2nd Data Science Bootcamp.
The 1st National Summit on Big Data Economy will bring together industry leaders, business executives, academia and cross-industry data science practitioners to discuss a Nigerian-centric Big Data agenda, especially as it relates to the practical application of data science in driving socio-economic development in emerging markets. Sessions will include practical showcase of data science application in the economy, consumer behaviour, health, business, city planning, security, agriculture, manufacturing and logistics. Dr Yemi Kale, the Statistician General of the Federation will be the keynote speaker as the No 1 data champion in the country.
The 2nd Data Science bootcamp will run side-by-side between Thursday, 12 October and Sunday, 15 October 2017. The bootcamp will include face-to-face teaching, virtual online classes, and a hands-on hackathon using the Kaggle platform on latest tools in Machine learning and advanced Statistics for Data science. The sessions will be facilitated by leading Nigerian data scientists and many international PhD-level data scientists, including both industry professionals and academics.
We do believe that these two events collaboration will reinforce the increasing importance of data in our national development and further position Data Science Nigeria as a transformational lighthouse and an enabler of the emerging knowledge-based economy.
MIIA (via Dr Jacques Ludik's participation) will also be represented at the Global Symposium on AI and Inclusion on 8–10 November 2017, in Rio de Janeiro, Brazil. The Global Network of Internet and Society Research Centers (NoC) has organized the event which are co-hosted, on behalf of the NoC, by the Institute for Technology and Society of Rio de Janeiro and the Berkman Klein Center for Internet & Society at Harvard University, with support from the Ethics and Governance of Artificial Intelligence Fund. The aim of the Symposium is to deepen participants's understanding of Artificial Intelligence inclusion challenges and opportunities, to identify and discuss areas for research, education, or action, and inform and incubate new projects and other collaborative efforts among participants. It will focus on identifying, exploring, and addressing the opportunities and challenges of Artificial intelligence. AI-related topics and issues will be explored from the perspectives of different actors, and by looking at a set of thematic core areas, such as social justice, health and wellbeing, education, data and infrastructure, law and governance, and employment and workplace.
Participants will include representatives from advocacy, philanthropy, media, policy, and industry, who will address both the opportunities and challenges of AI-based technologies through the lens of inclusion.
For more information, visit the following pages:
For some upcoming MIIA events, see the events page on the MIIA website.
Machine intelligence Institute of Africa (MIIA):
Some Recent MIIA posts:
Joining Machine Intelligence Institute of Africa (MIIA)
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