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εǾҲ𤷤#2170. gravity model ([2015-04-06-1]) ϸѲŪŤͥ줿³⤢롥ΥǥǤϡŤͼ2֤εΥȳơοϤˤäޤȲꤵ뤬ºݤˤϤ2ĤΥѥΤۤˤ⤤Ĥװθɬפ롥㤨С˸¤餺ŪŤθԤäƤ Rogers ϡ(1) the phenomenon itself(2) communication networks, (3) distance, (4) time, (5) social structure 5ѿװȤƷǤƤ뤬gravity model äƤΤ (3) ȡ绨Ĥʰ̣ˤƤ (2) ΤߤǤ롥
ǤϡWolfram and Schilling-Estes (726--33) Ȥʤ顤¾װͤƤޤ "barrier effect" θʤФʤʤ㤨СɤȥåȥɤζϡΤޤפʱѸȤʤäƤ롥åȥɤζѲåȥȾˡ뤤ԻŤ뤳ȤäƤ⡤ۤƥɤζŤ뤫ɤϤ狼ʤդξǤ롥ŷͤͤζξ¦¼ǡͽۤʾ˰ۤʤäƤȤ⡤˵äθѲߤ˶ۤŤʤäȤ롥
ˡgravity model ϤȤʪؤοʸҲʳؤؤαѤǤꡤԤȤưǸ뤳ȤϤǤʤ㤨СʸʪŤͼȸŤͼ˴Ϳװϰۤʤ (cf. #2064. ʸμѼ (1) ([2014-12-21-1])#2065. ʸμѼ (2) ([2014-12-22-1])ˡ㤨СŤݤˤϡηϤؤ (embedding) ¦̤θɬפ뤬gravity model ϤΤ褦ʥѥǰƬ֤ƤʤηϤ˴ؤѥˤĤƤϡ#1779. ܿ٤ȼͽ¬ɸ ([2014-03-11-1])#1781. ܿ ([2014-03-13-1])#2011. Moravcsik ˤѤ ([2014-10-29-1])#2067. Weinreich ˤ촳Ĥηװ ([2014-12-24-1]) ȡηϴ֤ŤѤˤƤɤ٤θ̤ĤˤĤƤŪʵ⾯ʤʤȤդäƤ
ˡgravity model ŪŤˤĤƤβǤꡤҲŪŤٳ뤷ƤȤ꤬롥1ĤϰˤʣμҲṲ̄Τ̤Ǥ롥ѲϰŤȤȤϰΤ٤ƤμҲƱŤȤϸ¤餺μҲˤΤŤȤȤ⤢ꤦ롥gravity model Ūʲμ˱äŤθƤʤѲŤͻǤϼҲŪʽĤμƱ餤˽פʤΤǤϤʤ
social_network ˤС夤 (weakly_tied) ĸĿͤ佸ĤѲŤĥܿͤȤʤȤ롥gravity model ϿϤ礭Ȥ龮ȤؤȤޥΥͥåȥռƤ뤬θĿͤ佸ĤδͿߥΥͥåȥϹθƤʤȤ롥η䤦Ȥơ#882. Belfast νŹ ([2011-09-26-1])#1179. ťΥɸȤܿȡּ夤嫡ס ([2012-07-19-1])#1352. ߥ˥̩٤̻֡ ([2013-01-08-1]) ͤˤ줿
ǸˡϤξϰ褫礭ϰؤȡֵήפ "contra-hierarchical diffusion" λ𤵤Ƥ롥εǤ줿褦 Oklahoma Ǥϡ/ɔ/ -- /a/ εۼ gravity model ͽۤȤԻԤļˤؤ hierarchical ŤƤ뤬Ʊ Oklahoma ǽˡư fixin' to (= going to) ϤषļˤԻԤؤ contra-hierarchical ŤƤ뤳ȤǧƤ롥Tennessee ɡ /ɪ/ /ɛ/ εۼƱͤ contra-hierarchical ŤƤȤܸǤ⡤#2074. ѸѼαǥ ([2014-12-31-1]) Ǿˤ褦ˡؤήȤݤϰճ¿ߤ졤contra-hierarchical Ť褷ƵʻǤϤʤȤƤ롥
Wolfram, Walt and Natalie Schilling-Estes. "Dialectology and Linguistic Diffusion." The Handbook of Historical Linguistics. Ed. Brian D. Joseph and Richard D. Janda. Malden, MA: Blackwell, 2003. 713--35.
Rogers, Everett M. Diffusion of Innovations. 5th ed. New York: Free Press, 1995.
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