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SUMMARY:Emergence of order in random languages - Eric DeGiuli (Ryerson Uni
 versity)
DTSTART:20201020T120000Z
DTEND:20201020T130000Z
UID:TALK152527@talks.cam.ac.uk
CONTACT:Patrick Pietzonka
DESCRIPTION:Zoom link: https://maths-cam-ac-uk.zoom.us/j/94018037756\n\nMa
 ny complex systems have a generative\, or linguistic\, aspect: life is wri
 tten in the language of DNA\; protein structure is written in a language o
 f amino acids\, and human endeavour is often written in text. Are there un
 iversal aspects of the relationship between sequence and structure? I am t
 rying to answer this question using models of random languages. Recently I
  proposed a model of random context-free languages [1] and showed using si
 mulations that the model has a transition from an unintelligent phase to a
 n ordered phase. In the former\, produced sequences look like noise\, whil
 e in the latter they have a nontrivial Shannon entropy\; thus the transiti
 on corresponds to the emergence of information-carrying in the language. I
 n this talk I will explain the basics of natural language syntax\, without
  assuming any prior knowledge of linguistics. I will present the results f
 rom the model above\, and explain how the model can be partially solved us
 ing Feynman diagrams [2]. \n[1] https://journals.aps.org/prl/abstract/10.1
 103/PhysRevLett.122.128301 \n[2] https://arxiv.org/abs/1902.07516
LOCATION:via zoom\, meeting ID 940-1803-7756
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