February 26, 2005
Chattoe(1998)
Edmund Chattoe. "Just How (Un)realistic are Evolutionary Algorithms as
Representations of Social Processes?". Journal of Artificial Societies
and Social Simulation, Vol.1, No.3, http://www.soc.surrey.ac.uk/JASSS/1/3/2.html, 1998.
JASSSにこんな宝物が埋まっているとは．
たいへんおいしゅうございました．
最近の興味関心からすると，JASSSにはもっとたくさん掘り出し物がありそうなので，チェックしておこう．
論文のテーマは，社会科学の文脈でのvalidでcoherentなevolutionary modelのあり方を考えるもの．
これにより，リサーチプログラムを進めるうえでの，齟齬がなくなるし，的はずれな批判をかわし，解釈を形成する過程から弱みも知ることができるようになると．
An attempt to find a coherent interpretation for
evolutionary modelling serves three purposes. The first is self
evident. It is easier to pursue a research programme that has been set
in some sort of order, albeit provisional and descriptive. The second
is that evolutionary models have so far been carelessly criticised or
ignored by orthodox economists and other social scientists. Many of the
traditional criticisms rest on misinterpretations or take advantage of
ambiguities in the interpretations used by researchers in the field. A
coherent interpretation may also serve to improve the quality of
subsequent debate. Finally, the process of building an interpretation
reveals weak spots in the current simulations and may suggest both
immediate solutions and areas for further long term research.
Chattoe(1998)
この記述に注目したい．
僕はLamarkian inheritanceを導入することで，むしろGAによる進化を強い形で類推したときに弊害となる，断続的に進化プロセスが進むという弱点を，解消できるのではないかと思い始めている．
どちらにせよ，強い形で社会科学の文脈に進化の考えを導入するのは，無理があるので，弱い形での導入しかないし，それでも十分に進化の考えを導入する意味は大きいと思う．
Evolution does not exclude Lamarckian inheritance. It
appears the Lamarckian inheritance --- inter-generational genotypic
transmission of phenotypic characteristics acquired during a single
lifetime --- has not evolved in biological systems except for some
fiercely contested cases among the simplest organisms (McDougall 1927).
It is also fairly easy to see why this might be. There is simply no
mechanism by which additional arm muscles might be "re-encoded" back
into the genes, because they are not directly encoded there in the
first place. All that is encoded is the synthesis of enzymes and other
chemicals that will, taken together, result in a particular set of
muscles and other bodily features but only through a dynamic process of
construction. The completed body does not retain any representation of
this construction process, so it cannot be "reverse engineered".
However, this is a contigent fact about genes. There is nothing
conceptually incoherent about Lamarckian inheritance as part of an
evolutionary framework. Indeed the existence of cultural transmission
suggests that if the material of the "genotype" is human language,
rather than genes, Lamarckian inheritance has indeed evolved and may
now dominate genetic inheritance (Moravec 1989).
Chattoe(1998)
Posted by ysk5 at February 26, 2005 03:15 PM