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SUMMARY:CNN Seminar - Understanding Technology Pathway of Society from U.S
 . patents - Dr HyeJin Youn  (The Institute of New Economic Thinking and Th
 e Mathematical Institute\, Oxford)
DTSTART:20150217T163000Z
DTEND:20150217T173000Z
UID:TALK55822@talks.cam.ac.uk
CONTACT:Petra Vertes
DESCRIPTION:Technology’s advance is central to our understanding of econ
 omic growth and development. Furthermore\, solutions for many of the plane
 t’s most pressing challenges – economic recovery\, poverty reduction\,
  climate change\, sustainability – require significant additions to soci
 ety’s technological toolkit. Yet\, our ability to quantitatively model a
 nd forecast technological change has been limited due to difficulties in d
 efining units of analysis and in collecting comparative empirical data. So
 me inventions\, namely patents\, however\, leave behind a documentary trai
 l\, enabling us to study the invention processes in a quantitative way. He
 re\, we propose to develop a formal methodology to construct detailed tech
 nology "map" and its temporal evolution from large-scale U.S. Patent data 
 spanning 220 years. We utilize the classification system consisting of cod
 es as temporally consistent units of analysis (nodes). These technology co
 des are means to succinctly describe a patent’s technology capabilities.
  When codes appear together in a patent\, therefore\, we consider them int
 er-dependent to make a useable function and represent this inter-dependenc
 y by assigning a link to between them. These micro-scale invention activit
 ies add up to form networks in time where macro-scale structures emerge th
 rough temporal evolution of community structure. We observe and identify e
 pisodic change of structure over time corresponding to historic events and
  major breakthroughs\, indicating the technology change is not gradual but
  serious of punctuated equilibriums.
LOCATION:Keynes Hall in King's College
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