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Ratcheting Evolution,
According to the
Biology
(Algorithms for Evolution)
Joshua Knowles - j.knowles@bham.ac.uk, with heavy debts to
Richard A. Watson (U. Southampton)
Darwin
Charles Darwin is widely regarded as
the forefather of Evolution by Natural
Selection
His theory is the cornerstone of much
biology, and is at the centre of
Evolutionary Biology – the study of how
genes, organs, organisms, and on all the
way up to ecosystems evolve over time.
Let’s applaud Darwin!
The Evolutionary Synthesis
Modern evolutionary theory admits that while Darwin was
right on many, many things, he did not know genetics (or
genetics had not been discovered)
So, the “Modern Synthesis” of how evolution works adds
Mendelian genetics to Darwin, and adds some other
things too.
Slide by Tony Malone
Extending
the Evolutionary Synthesis
More recently, new and persistent biological evidence has
been emerging, which suggests that there are many
mechanisms that genes, proteins, cells, organs, organisms
and whole ecosystems use to evolve.
The mechanisms are
• Coevolution
• Niche construction / speciation
• Phenotypic plasticity
• Gene reordering
• “Junk” DNA
• Major transitions, and symbiogenesis – Margulis
• GAIA theory (the whole world is an organism)
These are not really part of the Darwinian model ;-(
Extending
the Evolutionary Synthesis
YOU: OK, Josh, but what the heck has that got to do with
computer science?
Extending
the Evolutionary Synthesis
YOU: OK, Josh, but what the heck has that got to do with
computer science?
ME: Well, natural selection is an algorithm. That is to say,
we can run a simulation of natural selection on our laptops
and evolve all sorts of cool stuff ...
N.B.: When we run a simulation of natural selection, this is
natural selection, according to most philosophers. It is just
the same as saying that adding 2+2 on paper is exactly the
same as taking two objects and putting them next to two others.
Extending
the Evolutionary Synthesis
YOU: OK, Josh, but what the heck has that got to do with
computer science?
ME: Well, natural selection is an algorithm. That is to say,
we can run a simulation of natural selection on our laptops
and evolve all sorts of cool stuff ...
ME: And what’s more, those algorithms could be improved
greatly if we added in more ways of evolving. We need to
get closer to the new biology, but without the detail.
This is easily said!
Evolutionary Algorithms
The products of evolutionary algorithms range over
Bridges
Military strategies
Artificially intelligent game-players, and bots on the Internet
(Physical) Swarm robots, and how they move and cooperate
Telephone and computer network designs
Roasting recipes for making chocolate!
Drug designs
...and many more things besides.
Evolutionary Algorithms
The products of evolutionary algorithms range over
A drug evolved from DNA!
[see my papers]
An antenna evolved for a NASA space probe
Evolutionary Algorithms
The products of evolutionary algorithms range over
Automated mass spectrometry,
as seen in Batman
[see my papers on this]
Roasted cocoa beans with
wonderful aroma
[see my papers]
Evolutionary Algorithms
The products of evolutionary algorithms range over
Work from the 1970s done by Hans-Paul Schwefel and colleagues in Berlin
Evolutionary algorithms:
the algorithm
Q. How does it work?
Answer:
1. Decide what you want to evolve
2. Choose an appropriate measure of quality
3. Start with some random attempts
4. Select the best few, according to your quality measure
5. Create new copies of these few, but with some small changes.
Let the others die ;-(
6. Keep going back to step 4. until you are happy!
N.B. it is crucial that step 5 allows inheritance of most of the characteristics, unchanged.
Extending
the Evolutionary Synthesis
YOU: OK, Josh, but what the heck has that got to do with
computer science?
ME: Well, natural selection is an algorithm. That is to say,
we can run a simulation of natural selection on our laptops
and evolve all sorts of cool stuff ...
ME: And what’s more, those algorithms could be improved
greatly if we added in more ways of evolving. We need to
get closer to the new biology, but without the detail.
This is easily said!
Extending
the Evolutionary Synthesis
Coevolution
Niche construction (speciation)
Lifetime learning (heritable)
Symbiogenesis! – a theory by Lynn Margulis
GAIA!!! – a theory by James Lovelock
These are just some of the ways we could add stuff !
Extending
the Evolutionary Synthesis
Coevolution
Niche construction (speciation)
Lifetime learning (heritable)
Symbiogenesis! – a theory by Lynn Margulis
GAIA!!! – a theory by James Lovelock
These are just some of the ways we could add stuff !
Heritable lifetime-learning
We adapt, during life – that is clear
How much of the adaptation is inherited? – This has long
been controversial
HOW could things learned in your brain (or heart) be
passed on to the next generation via your genes?!?
Conventional (Darwin) view: they can’t
Maverick (Shapiro) view: they can!! ... So there!
We want to create algorithms to answer the HOW, and give
a bit of a better justification than “So there!” ;-)
We’ve made a good start
Richard A. Watson’s work made the front cover of New Scientist, and
was in the Independent newspaper, both in 2016.
We’ve made a good start
Joshua Knowles’s work on evolutionary algorithms has been cited in
15,000 scientific papers in just 15 years. And his recent NIPS slides were
viewed online >400 times in less than two weeks
Holmes and Watson
...solved a few mysteries.
So, what about Knowles and Watson?
Or, Watson and Knowles?
Watch THIS SPACE !
Holmes and Watson
...solved a few mysteries.
So, what about Knowles and Watson?
Or, Watson and Knowles?
Watch THIS SPACE ! And are YOU going to help us?
Selected references
(very selected)
Joshua Knowles (2006) “ParEGO:...”, IEEE Transactions on
Evolutionary Computation
(cited >400 times; IEEE award-winning)
Richard A. Watson (2016) “Why evolution may be smarter
than we thought”, The Independent
Our publications full listings are online at these two places:
goo.gl/FMCXIA - Joshua Knowles
goo.gl/hIbyH9 - Richard A. Watson

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Ratcheting evolution

  • 1. Ratcheting Evolution, According to the Biology (Algorithms for Evolution) Joshua Knowles - j.knowles@bham.ac.uk, with heavy debts to Richard A. Watson (U. Southampton)
  • 2. Darwin Charles Darwin is widely regarded as the forefather of Evolution by Natural Selection His theory is the cornerstone of much biology, and is at the centre of Evolutionary Biology – the study of how genes, organs, organisms, and on all the way up to ecosystems evolve over time. Let’s applaud Darwin!
  • 3. The Evolutionary Synthesis Modern evolutionary theory admits that while Darwin was right on many, many things, he did not know genetics (or genetics had not been discovered) So, the “Modern Synthesis” of how evolution works adds Mendelian genetics to Darwin, and adds some other things too.
  • 4. Slide by Tony Malone
  • 5. Extending the Evolutionary Synthesis More recently, new and persistent biological evidence has been emerging, which suggests that there are many mechanisms that genes, proteins, cells, organs, organisms and whole ecosystems use to evolve. The mechanisms are • Coevolution • Niche construction / speciation • Phenotypic plasticity • Gene reordering • “Junk” DNA • Major transitions, and symbiogenesis – Margulis • GAIA theory (the whole world is an organism) These are not really part of the Darwinian model ;-(
  • 6. Extending the Evolutionary Synthesis YOU: OK, Josh, but what the heck has that got to do with computer science?
  • 7. Extending the Evolutionary Synthesis YOU: OK, Josh, but what the heck has that got to do with computer science? ME: Well, natural selection is an algorithm. That is to say, we can run a simulation of natural selection on our laptops and evolve all sorts of cool stuff ... N.B.: When we run a simulation of natural selection, this is natural selection, according to most philosophers. It is just the same as saying that adding 2+2 on paper is exactly the same as taking two objects and putting them next to two others.
  • 8. Extending the Evolutionary Synthesis YOU: OK, Josh, but what the heck has that got to do with computer science? ME: Well, natural selection is an algorithm. That is to say, we can run a simulation of natural selection on our laptops and evolve all sorts of cool stuff ... ME: And what’s more, those algorithms could be improved greatly if we added in more ways of evolving. We need to get closer to the new biology, but without the detail. This is easily said!
  • 9. Evolutionary Algorithms The products of evolutionary algorithms range over Bridges Military strategies Artificially intelligent game-players, and bots on the Internet (Physical) Swarm robots, and how they move and cooperate Telephone and computer network designs Roasting recipes for making chocolate! Drug designs ...and many more things besides.
  • 10. Evolutionary Algorithms The products of evolutionary algorithms range over A drug evolved from DNA! [see my papers] An antenna evolved for a NASA space probe
  • 11. Evolutionary Algorithms The products of evolutionary algorithms range over Automated mass spectrometry, as seen in Batman [see my papers on this] Roasted cocoa beans with wonderful aroma [see my papers]
  • 12. Evolutionary Algorithms The products of evolutionary algorithms range over Work from the 1970s done by Hans-Paul Schwefel and colleagues in Berlin
  • 13. Evolutionary algorithms: the algorithm Q. How does it work? Answer: 1. Decide what you want to evolve 2. Choose an appropriate measure of quality 3. Start with some random attempts 4. Select the best few, according to your quality measure 5. Create new copies of these few, but with some small changes. Let the others die ;-( 6. Keep going back to step 4. until you are happy! N.B. it is crucial that step 5 allows inheritance of most of the characteristics, unchanged.
  • 14. Extending the Evolutionary Synthesis YOU: OK, Josh, but what the heck has that got to do with computer science? ME: Well, natural selection is an algorithm. That is to say, we can run a simulation of natural selection on our laptops and evolve all sorts of cool stuff ... ME: And what’s more, those algorithms could be improved greatly if we added in more ways of evolving. We need to get closer to the new biology, but without the detail. This is easily said!
  • 15. Extending the Evolutionary Synthesis Coevolution Niche construction (speciation) Lifetime learning (heritable) Symbiogenesis! – a theory by Lynn Margulis GAIA!!! – a theory by James Lovelock These are just some of the ways we could add stuff !
  • 16. Extending the Evolutionary Synthesis Coevolution Niche construction (speciation) Lifetime learning (heritable) Symbiogenesis! – a theory by Lynn Margulis GAIA!!! – a theory by James Lovelock These are just some of the ways we could add stuff !
  • 17. Heritable lifetime-learning We adapt, during life – that is clear How much of the adaptation is inherited? – This has long been controversial HOW could things learned in your brain (or heart) be passed on to the next generation via your genes?!? Conventional (Darwin) view: they can’t Maverick (Shapiro) view: they can!! ... So there! We want to create algorithms to answer the HOW, and give a bit of a better justification than “So there!” ;-)
  • 18. We’ve made a good start Richard A. Watson’s work made the front cover of New Scientist, and was in the Independent newspaper, both in 2016.
  • 19. We’ve made a good start Joshua Knowles’s work on evolutionary algorithms has been cited in 15,000 scientific papers in just 15 years. And his recent NIPS slides were viewed online >400 times in less than two weeks
  • 20. Holmes and Watson ...solved a few mysteries. So, what about Knowles and Watson? Or, Watson and Knowles? Watch THIS SPACE !
  • 21. Holmes and Watson ...solved a few mysteries. So, what about Knowles and Watson? Or, Watson and Knowles? Watch THIS SPACE ! And are YOU going to help us?
  • 22. Selected references (very selected) Joshua Knowles (2006) “ParEGO:...”, IEEE Transactions on Evolutionary Computation (cited >400 times; IEEE award-winning) Richard A. Watson (2016) “Why evolution may be smarter than we thought”, The Independent Our publications full listings are online at these two places: goo.gl/FMCXIA - Joshua Knowles goo.gl/hIbyH9 - Richard A. Watson

Editor's Notes

  1. I want to say something here about religion and Darwin. If we ask the question, Who or what created Man?, then one answer is God. I happen to believe in that answer, but God is not a very clear concept, and is different to different people. So we can still believe in God, but admit it would be nice to know a bit more about how Man came to be. If you ask me how a motor car works, I will tell you as well as I can. If I said God made it, you probably wouldn’t be very happy with my answer, especially if I charge you £30 an hour. It is exactly the same with Man: we can ask how he came to be, and try to explain it in as much detail as we can, but still the ultimate answer can be “God made him”. As well as believing in God, I am also an atheist. This is not being funny or clever, but I find the Universe wonderful, and I find that science and philosophy are incomplete – the gap between the reality (or truth) of the universe, and our mechanical explanations, is God (or mystery), and I think it will always be there (eternal God). However, this kind of makes me an atheist by many standards, because I seek explanations and don’t accept “God did it” as an answer!