Monday, June 21, 2010
Warwick Mimesis project visit to the lab
The day started with me describing the embodied imitation-of-movement experiments that we are currently doing here within the Artificial Culture project, and demonstrating the latest version of the Copybots experiment. After lunch we then had a round table discussion about whether or not such a simple model might have value in social science research and - somewhat to my surprise - there seemed to be strong consensus that there is value and that this (radical) new approach to embodied modelling is something we should actively pursue in future joint projects.
The meeting was filmed by Roger Stotesbury of Jump Off The Screen and I hope to post a link to the video record of the meeting on this blog.
Postscript: here is my blog post with Roger's film of the meeting.
Tuesday, June 08, 2010
Walking with Robots wins Academy Award
No, not that academy, but an academy award all the same. Last night WWR won the Royal Academy of Engineering 2010 Rooke medal for the Public Promotion of Engineering. What can I say. It was wonderful for Walking with Robots to be recognised and acknowledged in this way. It was a great project. If there had been an acceptance speech we would have had a large number of thankyous: the EPSRC who funded WWR; the amazing WWR network of roboticists and engagers from about 12 universities and as many companies; Claire Rocks who - as brilliant WWR network coordinator - more than anyone made things happen, and of course the RAEng for this award. Thank you! And we had a wonderful evening.
Here we are receiving the award from Lord Browne (third from the left). On the left is Noel Sharkey and Owen Holland, and on the right me, Karen Bultitude and Claire Rocks.
Friday, June 04, 2010
Evolving e-pucks
Nicolas Bredeche and his graduate student Jean-Marc Montanier have spent the last two weeks working in the lab to test out work they had already done in simulation, onto real robots. Nicolas is interested in evolutionary swarm robotics. This is an approach, inspired directly by Darwinian evolution, in which we do not design the robots' controllers (brains) but instead evolve them. In this case the brains are artificial neural networks and the process of artificial evolution evolves the strengths of the connections between the neurons. Nicolas is especially interested in open-ended evolution, in which he - as designer - does not pre-determine the evolved robot behaviours (by specifying an explicit fitness function, i.e. what kinds of behaviours the robots should evolve). Thus, even though this is an artificial system, its evolution is - in a sense - a bit closer to natural than artificial selection.
Friday, May 21, 2010
Real-world robotics reality check
Having said that there were some deeply impressive demonstrations of fully autonomous operation by university teams - such as the University of Hannover's vehicle Hanna which deservedly took away one of the ELROB 2010 innovation awards. You're a robot: imagine having to navigate your way autonomously through several km of forest track at night; the only map you have is inaccurate and out of date and just 4 (GPS) waypoints are provided at the start of your 1 hour timeslot. There are no trial or practice runs for you to survey the track beforehand, and (just in case it might be too easy) there are unknown obstacles which require you to autonomously backtrack to the last fork and take an alternative route. A good indication of how tough this was is the fact that other (commercial) tele-operated robots, perhaps surprisingly, fared no better than their autonomous rivals. Having spent a cold couple of hours looking over the shoulders of 2 team members: one tele-operating his robot, the other (nervously) tracking his autonomous robot's progress on a laptop, it was clear to me that in an this environment tele-operation is - if anything - harder than autonomy. Or perhaps it would be fairer to say that neither tele-operation or autonomy is yet fully up to this kind of task.
I left ELROB wishing that my robotics research colleagues who never venture outside their labs could have witnessed this and, as I did, experience the harsh reality-check of real world robotics.
Thursday, April 29, 2010
EPSRC HOW? event
I took along some e-pucks and a portable arena, which proved very popular, together with this poster for the Artificial Culture project.
Friday, March 19, 2010
Expecting the expected on Mars
I just spent 2 days with a remarkably interesting group of space scientists (planetary geology, exobiology, etc), space industry and roboticists discussing the science and engineering of Mars sample return missions: i.e. to find, collect and then bring interesting Mars rocks back to Earth. Given the immense cost and technical risk of mounting such a mission it seems to me worth the extra small effort of giving the rover(s) systems that would allow them (and us) to notice unexpected or unusual stuff. An image processing module that, for instance, continuously looks for things in the camera's view that are the wrong colour, or shape, moving in a different way to everything else. The whole point of exploration is that you don't know what's there and, while I'm not suggesting there really are Martians (other than perhaps microbes), it does seem to me that we should engineer systems that allow for the possibility of discovering the unexpected.
Wednesday, March 10, 2010
Robotic Visions in Parliament
Here's what I said.
"Imagine personal robot instead of personal computer. Imagine in old age you could have a robot nurse. Your grandchildren a robot teddy, that talks to them, reads them a story, and keeps an eye on them at the same time. Right now these things are possibilities but would we - should we - want them?
Intelligent Robotics is a technology likely to impact every aspect of future life and society. Intelligent robots will - for example - change the way we treat illness and look after the elderly, how we run our homes and workplaces, how we manage our waste, harvest our crops or mine for resources and - I’m sorry to say - how we fight our wars. But as we build smarter robots the boundaries between robots as mere machines, and robots as friends or companions, will become blurred - raising new and challenging ethical questions. This may seem to be a statement of the obvious, but robotics technology will have a much greater impact on our children’s generation than on my generation.
So what is it that makes intelligent robots different to other technologies in a way that means we need to have special concerns about their future impact? It is - I suggest - two factors in combination. Firstly, agency - the ability to make decisions without human intervention. And secondly, the ability to draw an emotional response from humans. Right now we have plenty of machines with agency, within limits, like airline autopilots or room thermostats. We also have machines that generate emotional responses: Ferraris or iPods, for example. Intelligent robots are different because they bring these two elements together in a potent new combination that - frankly - we don’t yet fully understand.
It is, therefore, very important that our children should have the opportunity to understand what robots can and can’t do right now, and where intelligent robotics research is taking us. It is important that our children understand and debate the implications of robotics technology, and make their own minds up about how robots should, or should not, be used in society. And it is important that those views should be heard - and taken seriously – by robotics researchers, funders and policy makers.
I have been immensely impressed by the enthusiasm with which teenagers have engaged in the Robotic Visions Conferences. The views that they have expressed are articulate, serious and insightful, and - on behalf of the Robotics Visions project team - I invite you to consider those views and quotes in the summary paper and on the posters in this room, and to meet with their representatives here today."
Monday, January 04, 2010
The Ethical Roboticist
Researchers, we, need to be much more concerned about both how our work affects society and how interactions with this technology affect individuals.
Right now researchers in intelligent robots, or AI, do not need to seek ethical approval for their projects (unless of course they involve clinical or human subject trials), so most robotics/AI projects in engineering and computer science fall outside any kind of ethical scrutiny. While I'm not advocating that this should change now, I do believe – especially if some of the more adventurous current projects come anywhere close to achieving their goals – that ethical approval for intelligent robotics/AI research might be a wise course of action within five years.
Let me now try and explain why, by defining four ethical problems.
1. The ethical problem of artificial emotions, or robots that are designed to solicit an emotional response from humans
Right now, in our lab in Bristol, is a robot that can look you in the eye and, when you smile, the robot smiles back. Of course there's nothing 'behind' this smile, it's just a set of motors pulling and pushing the artificial skin of the robot's face. But does the inauthenticity of the robot's artificial emotions abnegate the designer of any responsibility for a human's response to that robot? I believe it does not, especially if those humans are children or unsophisticated users.
Young people at a recent Robotic Visions conference concluded that “robots shouldn't have emotions but they should recognise them”.
A question I'm frequently asked when giving talks is “could robots have feelings?”. My answer is “no, but we can make robots that behave as if they have feelings”. I'm now increasingly of the view that it won't matter whether a future robot really has feelings or not.
On the horizon is robots with artificial theory of mind, a development that will only serve to deepen this ethical problem.
2. The problem of engineering ethical machines
Clearly for all sorts of applications intelligent robots will need to be programmed with rules of safe/acceptable behaviour (c.f. Asimov 'laws' of robotics). This is not so far fetched: Ron Arkin, roboticist at Georgia Tech has proposed the development of an artificial conscience for military robots.
Such systems are no longer just an engineering problem. In short it is no longer good enough to build an intelligent robot, we need to be able to build an ethical robot. And, I would strongly argue, if it is a robot with artificial emotions, or designed to provoke human emotional responses, that robot must also have artificial ethics.
3. The societal problem of correct ethical behaviour toward robot companions or robot pets
Right now many people think of robots as slaves: that's what the word means. But in many near term applications it will – I argue - be more appropriate to think of robots as companions. Especially if those robots - say in healthcare – even in a limited sense 'get to know' their human charges over a period of time.
Our society rightly abhors cruelty to animals. Is it possible to be cruel to a robot? Right now not really, but as soon as we have robot companions or pets, on which humans come to depend – and that's in the very near future – then those human dependents will certainly expect their robots to be treated with respect and dignity [perhaps even to be accorded (animal) rights]. Would they be wrong to expect this?
4. The ethical problem of engineering sentient machines
A contemporary German philosopher, Thomas Metzinger, has asserted that all research in intelligent systems should be stopped. His argument is that in trying to engineer artificial consciousness we will, unwittingly, create machines that are in effect disabled (simply because we can't go from insect to human level intelligence in one go). In effect – he argues - we could create AI that can experience suffering. Now his position is extreme, but it does I think illustrate the difficulty. In moving from simple automata that in no sense could be thought of as sentient to intelligent machines that simulate sentience we need to be mindful of the ethical minefield of engineering sentience.
In summary:
What is it that makes intelligent autonomous systems different to other technologies in a way that means we need to have special concerns about ethical and societal impacts? It is, I suggest two factors in combination. Firstly, agency. Secondly, the ability to elicit an emotional response or in extremis dependency from humans. Right now we have plenty of systems with agency, within proscribed limits, like airline autopilots or room thermostats. We also have machines that generate emotional responses: Ferraris or iPods. Intelligent robots are different because they bring these two elements together in a potent new combination.
This post is the text of the statement I prepared for the EPSRC Societal Impact Panel in November 2009.
Wednesday, December 16, 2009
Mimetic Factors in Health and Well-being
Project lead, Steve Fuller, gave a great talk which reflected on both memetics (pre-Dawkins), and mimesis in advertising and PR. I found myself being introduced first to French sociologist Gabriel Tarde who, who - according to Steve Fuller - first articulated the pivotal role of imitation in society. Then to contemporary French social and cognitive scientist, and by the looks of it all round genius, Dan Sperber. I can see that I have to add Sperber to my reading list!
Friday, December 11, 2009
Can I have a robot for Christmas?
In my talk I focus on the current strong convergence of biology and robotics, but in reflecting and speaking with the medics afterwards I was struck that the next big convergence in robotics (perhaps the next wave after biology) will be with medicine. As our understanding of the human body and its astonishingly complex processes and mechanisms deepens, then - in a sense - medicine becomes more like ultra precision engineering. And as robotics moves toward artificial life, then engineering robots becomes far removed from mechanical and electrical engineering and more like bio-medical engineering. For a good example look at the BRL's Ecobot III, with all of its plumbing and bio-chemistry. Hence the convergence I predict.
Postscript: the Notts Med-Chi society is very firmly in the 21st C: I discovered my Christmas lecture can be downloaded as a podcast on iTunes.
Wednesday, November 25, 2009
Robot ethics at the EPSRC societal issues panel
As the new boy there wasn't much I could contribute to the main session, when the panel wanted to hear from the senior media fellows about their experiences and what more, or differently, the panel could do in its work. But listening to the SMFs experiences was for me incredibly useful. It was like getting a master class from not one but a whole group of virtuosi, concentrated into two hours.
But the tough bit was to follow. Noel Sharkey and I had been asked to stay for another agenda item on the potential ethical and societal impact of intelligent robots, artificial intelligence and autonomous systems. Noel and I each gave short introductions to what we thought were the main issues and I focussed on the ethical questions raised by research in intelligent robotics - i.e. the ethical roboticist.
postscript: The Ethical Roboticist
Saturday, November 07, 2009
e-pucks in Osaka
Wednesday, October 21, 2009
The robots are coming (to Manchester)
If you're in or around Manchester Saturday 24th - Tuesday 27th October, do come and see us at the Walking with Robots festival of robotics - part of the Manchester Science Festival.Here are links to the events:
Monday, October 12, 2009
Surrogates: not a review
For me, however, the most interesting question raised by the movie is this. If you had the opportunity to live your life through a beautiful robot proxy, so that you see, hear and touch the world not directly but through its senses, and you interact with (most) other people even more indirectly, via their surrogates, would you..? Not just occasionally, for fun, but 24-7 - work and play. Would the experience be so compelling, so addictive, that it justifies spending your days lying prone on a couch jacked into an immersive real-reality, emerging only to pee and eat pizza (delivered presumable by surrogates)? Would social pressures or fashion compel you to surrogate-up, otherwise as a real human - lumpy and unattractive (not you dear reader) - you find yourself in a world of super-model surrogates?
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*Although I thoroughly enjoyed it. The plot is thin and predictable but Bruce Willis and his wife (played by Rosamund Pike) are excellent. And the makeup of the human-actors-playing-surrogates provoked in me a not-quite-out-of-the Uncanny Valley response, that really held my attention.
Thursday, October 01, 2009
Now I can really focus on Research and Public Engagement

Saturday, September 26, 2009
Artificial Culture in Warwick
Yesterday we had a full artificial culture project team meeting in Warwick, following on from the EmergeNet meeting on Thursday (see my previous blog post). An excellent meeting, significant because we are now exactly half way through the project. Having spent much of the first two years of the project building the artificial culture lab, the project is now moving into the experimental phase. Having built our microscope we can now start looking through it.The experimental phase of the project brings new challenges and we spent much of yesterday's meeting discussing and crystallising the detailed research questions that our experiments must address. Of course project team members each have questions and ideas that we want to address within our respective disciplines, but there must be overarching project-wide questions. Alistair led this discussion, wisely warning against the 'so what' problem ("Hey we've discovered x. Hmm interesting, but so what"). Taking a theory motivated approach, Alistair proposes four research questions addressing some key problems with the memetic theory of cultural evolution:
- What is the effect of fidelity of imitation on meme transmission?
- What is the effect of selection?
- What is the effect of size/granularity (of the meme)?
- What is the effect of complexity within the meme?
Thursday, September 24, 2009
Encyclopaedias and Emergence in Warwick
Unexpectedly, Springer also used the conference to launch their excellent new Encyclopaedia of Complexity and Systems Science. As an author of one of the articles in the encyclopaedia - on Foraging Robots - it was great to see all 11 volumes and my article, in print, for the first time. Editor in chief Bob Meyers did the formal launch last night and (perhaps not suprisingly) there were four or five contributors here in Warwick. Bob called a couple of us out of the audience to say a few words, which was great. I made the points that complexity science is a wonderful unifier of multiple disciplines - everything from cell biology to economics - and that the grand challenge is to find unifying principles of emergence and self-organisation.
Today is the EmergeNET3 workshop. James Crutchfield gave a terrific invited talk about emergence, which he defines as a change in a system's causal architecture. He outlined his computational mechanics framework for analysing emerging patterns, and gave examples from cellular automata. Very interesting, but I was left wondering if Jim's framework would transfer well from the ideal grid-world of cellular automata, to the continuous time and space of swarm robotics, with rather more complex agent behaviours, real-world physics and noise. I suspect not.
Wednesday, August 05, 2009
Killer robots in the news again
John's article in the Sunday Times was, in my view, a more-or-less reasonable account of what's actually a rather dull story: a group of senior researchers in AI getting together to discuss setting up ethical and design guidelines for future AI-based systems. Well good. That's what we should expect to happen and, indeed the AAAI group are probably a bit late off the mark. An EU initiative in Roboethics has been underway since 2004/05: here is a recent draft of the EURON Roboethics Roadmap; the South Korean government have been reported to be working on a robot ethics charter, and the venerable International Standards Organisation (ISO) have had a group working for a couple of years now on a new ISO standard for intelligent robots.

Unfortunately a sub-editor (I guess) chose to give the piece the lurid title: Scientists fear a revolt by killer robots. Sorry guys. I know it doesn't make for good headlines but we scientists do not fear a revolt by killer robots.
Yes, autonomous robots will demand some new - possibly radical - approaches to safety, reliability and ethics and, yes, a good deal of effort needs to go into this, but the fact that these efforts are going on is not because of some secret fears of killer robots taking over. Just good engineering practice.
Monday, July 13, 2009
Installing Player/Stage on OS X with MacPorts
I should explain that since that post I've switched from Linux to OS X, running on a MacBook Pro, and have only just got round to installing Player/Stage. I was very pleased to discover that my plea for a universal installer has been answered by the (almost) excellent MacPorts.
I say almost excellent because installation wasn't completely glitch free.
Here's what I had to do to install to Mac OS X 10.5.7 (Leopard)
1. Download and install XCode (MacPorts depends on it)
2. Download and install MacPorts, install details here
3. In a terminal window run MacPorts with
$ sudo port install playerstage-stage playerstage-player
And wait an hour or so - it takes awhile. However, compilation of playerstage-player fails library not found for -ljpeg. To fix this as detailed here:
4. sudo port install python_select && sudo python_select python25
then re-run step 3.
5. But before you can run Player/Stage there's another fix needed, as detailed here.
sudo ln -s /usr/X11/share/X11/rgb.txt /usr/X11R6/lib/X11/rgb.txt
And that's it. Player/Stage installed.
Thursday, July 09, 2009
Letter to the Times Higher
Sir,
I am dismayed by the poor quality of journalism shown in the article Sandpits bring out worst in infantilised researchers. Of the two academics quoted the first, Professor Docherty, hasn't been to a sandpit; a second, unnamed, researcher apparently hadn't either, instead reporting what some bloke had said to him at a conference. Come on THE, you can do better than this. It can't be that hard to find one or two participants prepared to offer opinions on the record, from the 25 sandpits so far. The piece is depressing also in its use of the pejorative trope 'reality-TV' without justifying it. I recall nothing even vaguely reality-TV-like about the sandpit I attended. And micromanaged? Yes the the week was skilfully managed – but how else can you go from 30 more or less complete strangers to coherent project teams and amazing proposals in 5 days? In fact there was a significant level of self-organisation going on within the sandpit framework. And what on earth is wrong with the word sandpit? The key to creativity is working with people outside your own discipline, outside your intellectual comfort zone; the analogy with play and exploration is apt. To be brought together with 30 very, very smart people and asked to think about big research questions is exhilarating, not infantilising.
Yours faithfully

