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The dynamics of correlated novelties. with V. Servedio S. Strogatz F. Tria. Vittorio Loreto Sapienza University of Rome ISI Foundation, Turin. Bio-techno-social systems. community level. social, interactive. infrastructure level. user level. ICT, networks, physical-digital.
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The dynamics of correlated novelties with V. Servedio S. Strogatz F. Tria Vittorio Loreto Sapienza University of Rome ISI Foundation, Turin
Bio-techno-social systems community level social, interactive infrastructure level user level ICT, networks, physical-digital cognitive, behavioural, biologic
A new platform for web-gaming and social computation http://www.xtribe.eu/
Social systems Biology Technology Arts, Science, Architecture, Urbanism, ....
Tinkering Diffusion Serendipity Success Exaptation Ahead of time Trial and Error Mutation / Fixation Multiples
Our lives are spiced with little novelties... a new song a new book a new person a new word a new web page ... ... and often one thing leads to another one innovation sets the stage for another
Consists of all those things (depending on the context, these could be ideas, molecules, genomes, technological products, etc.) that are one step away from what actually exists, and hence can arise from incremental modifications and recombinations of existing material. Adjacent possible The strange and beautiful truth about the adjacent possible is that its boundaries grow as you explore those boundaries. S. A. Kauffman, Investigations (Oxford University Press, New York/Oxford, 2000).
Is the adjacent possible for real ? Can we find its signature in reality ? Can we model it ?
frequency of words rank natural texts Let us imagine a language ...The language is meant to serve for communication between a builder A and an assistant B. A is building with building-stones; there are blocks, pillars, slabs and beams. B has to pass the stones, and that in the order in which A needs them. For this purpose they use a language consisting of the words 'block', 'pillar', 'slab', 'beam'. A calls them out; --B brings the stone which he has learnt to bring at such-and-such a call. -- Conceive of this as a complete primitive language. (L. Wittgenstein) Let us imagine a language ...The language is meant to serve for communication between a builder A and an assistant B. A is building with building-stones; there are blocks, pillars, slabs and beams. B has to pass the stones, and that in the order in which A needs them. For this purpose they use a language consisting of the words 'block', 'pillar', 'slab', 'beam'. A calls them out; --B brings the stone which he has learnt to bring at such-and-such a call. -- Conceive of this as a complete primitive language. (L. Wittgenstein)
Zipf's law in city populations Zipf's law in ecological systems Zipf's law in Web Access Statistics and Internet Traffic Zipf's law in earthquake? Zipf's law in bibliometrics, informetrics, scientometrics, and library science Zipf's law in finance and business Zipf’s law (frequency rank plot) http://www.nslij-genetics.org/wli/zipf/
Gutenberg Project ebook collection documents words distinct words Zipf’s law in texts Zipf’s law
number of distinct words number of words innovation in natural texts Let us imagine a language ...The language is meant to serve for communication between a builder A and an assistant B. A is building with building-stones; there are blocks, pillars, slabs and beams. B has to pass the stones, and that in the order in which A needs them. For this purpose they use a language consistingof the words 'block', 'pillar', 'slab', 'beam'. A callsthem out; --B brings the stone which he has learnt to bringatsuch-and-such a call. -- Conceive of this as a complete primitive language. (L. Wittgenstein) Let us imagine a language ...The language is meant to serve for communication between a builder A and an assistant B. A is building with building-stones; there are blocks, pillars, slabs and beams. B has to pass the stones, and that in the order in which A needs them. For this purpose they use a language consisting of the words 'block', 'pillar', 'slab', 'beam'. A calls them out; --B brings the stone which he has learnt to bring at such-and-such a call. -- Conceive of this as a complete primitive language. (L. Wittgenstein)
Gutenberg Project ebook collection documents words distinct words Heaps’ law in texts
# of new words frequency of words
resource user { tags } http://del.icio.us post
high rank Zipf’s law Heaps’ law
English Wikipedia 20 TB (downloaded on March the 7th 2012)
Mother page Red Link Mother page Wikipedia dump 20 TBbytes (3/2012)
# of new edits frequency of edits
Last.fm 1000 users; listened tracks user, time stamp, artist, track-id and track name
Modeling the adjacent possible Everything Should Be Made as Simple as Possible, But Not Simpler. A. Einstein
Polya Urn model with triggering Reinforcement Adjacent possible t t+1 t t+1 Actual history
Urn model with triggering (results) Generalized Zipf’s law + Heaps’ Zipf’s law like Yule-Simon model
First conclusion: Reinforcement + Adjacent possible Zipf’s AND Heaps’ laws
Grounding the notion of “one thing leads to another”
Semantics Mother page Artists Words
Quantifying triggering effects number of occurrences of the label A in number of occurrences of the label A in the interval i Distribution of time intervals between two successive appearances of events belonging to the same semantic group
Results Wikipedia Last.fm Model
Conclusions • Human activities feature strong correlations in their innovation processes • Reinforcement and adjacent possible help explaining how one innovation sets the stage for another.
Relevant fields biology (pangenome, influenza, etc.) • social sciences (opinions, languages, norms, cultural traits, • policy making, marketing, etc.) technology Challenges individual vs. collective behaviors early adoption vs. large-scale spreading multiples and competition of several innovations innovations too far ahead of their time best environments and strategies
Thank you Recent publications C. Cattuto, VL and L. Pietronero, Semiotic Dynamics and Collaborative Tagging, Proc. Natl. Acad. Sci. USA (PNAS), 104, 1461-1464 (2007). C. Cattuto, A. Barrat, A. Baldassarri, G. Schehr and VL, Collective dynamics of social annotation, Proc. Natl. Acad. Sci. USA (PNAS), 106, 10511-10515 (2009). C. Castellano, S. Fortunato and VL, Statistical physics of social dynamics Rev. Mod. Phys., 81, 591-645 (2009). F. Tria, V.D.P. Servedio, S. Strogatz and VL The dynamics of correlated novelties submitted (2013). Vito D.P. Servedio Steven Strogatz Francesca Tria http://samarcanda.phys.uniroma1.it/vittorioloreto/ http://www.everyaware.eu/ http://www.xtribe.eu/