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[2010-03-04-1]ε#311. girl Ȥ褯 collocate ƻϲפǡȸζ (collocation) ¬ˡ (association measure) ˤϤĤμब뤳ȤѥؤǤϡLog-Likelihood Test ȤˤˡŪ褯ȤƤ뤬줾ηˡˤħΤǡʤ٤ʣˡΤ褤[2010-03-04-1]ƤȽʣʬ⤢뤬BNCweb ǼƤ7ηˡγơˤĤ Hoffmann et al. (149--58) Ȥʤ顤ħѤΥҥȤ
Ƽηˡϡ(a) (frequency of co-occurrence)(b) ͭ (significance of co-occurrence)(c) եȡ (effect-size) 1ġ뤤ʣȤ߹碌˴ŤƤ롥(b) ϡŪͭդǤȤγο٤ɽ魯ɸǤꡤζɽ魯ΤǤϤʤȤդɬפ롥(c) ϡѻ٤ȴ٤ȤδܤȤɸǤ롥
(1) Rank by frequency
ѻ붦٤ΤΤѤ롤ǤñľŪʼ١¾ηˡΤ褦ʣϤۤɤƤ餺ɸȤƤϺǤƤǽɵʤɤ̤뤳Ȥ¿̾ζʬϤˤѤʤ
(2) Log-likelihood
ͭѤ롥BNCweb ΥǥեȤηˡǡѥǹѤƤ롥ǽɵʤɤζˤƹ٤θȤζ䡤դ˶ˤ٤θ1, 2ʤɡˤȤζϤ롥٤ι⤤Ȥ߹碌˹ͿȤħꡤˤդפ롥
(3) Mutual information (MI)
եȡѤ롥ˤ褯ѤƤˡѤäƤ¿դפ롥ǽɵʤɤȤΤդ줿ŪӽƤϤ褤ȿ̡٤ζɽؤФ꤬㤷Фαƶ뤿ˡBNCweb Ǥ "Freq(node, collocate) at least" 10ʾꤹ뤳Ȥ侩롥ˤꡤ"conspicuous and intuitively appealing collocations involving words of intermediate frequency" (Hoffmann et al. 154) ⤭ĦȤʤ롥
(4) T-score
٤ȶͭθˡ٤1ʲ٤εʶɽˤĤƤ Rank by frequency Ȼ褦ʿ٤ι⤤ɽˤĤƤ϶ͭȿǤ롥ޤѻ٤٤ɬ⤯ʤ롥Log-likelihood ̤Ȥʤ뤳Ȥ¿٤ؤΥХϰضʤ롥ΡɤΤΤ1000礭ˡ̤ȯ뤳Ȥ롥
(5) Z-score
ͭȥեȡθˡ٤ζɽˤϥեȡŻ뤹뤬٤ζɽˤϤޤǥեȡ˴꤫ʤLog-likelihood MI ξħ褦ʡХμ줿ɸǤ롥MI Ʊͤˡ٤ζɽؤΥХߤΤǡ"Freq(node, collocate) at least" 5٤ꤹΤ褤Ȥ롥
(6) MI3
٤ȥեȡθˡMI ΤɽؤнŤ٤Ƥ롥ٶɽˤϥեȡٶɽˤ϶٤Ū褯ȿǤ롥POS ˤȤȤѤȸŪʣ줫ʤѸʤɤμФ˰Ϥȯ롥ΤȤƤϹٶɽؤΥХŪʶʬϤˤϸʤ
(7) Dice coefficient
MI3 Ʊͤˡ٤ȥեȡθˡMI3Ȱۤʤꡤٶɽˤ϶٤ٶɽˤϥեȡ褯ȿǤ졤ξԤڤؤޤʤΤħŪǤ롥ڤؤϡΡɤΤΤ٤ɽ٤10ܤۤɤǵȤ롥иŪˡZ-score Ȼ褦ʷ̤뤬Z-score ۤ٤˴ŤХʤ
ʾΤ褦¿ढäܰܤꤹ뤬Hoffmann et al. θˤСñηˡȤƤ Log-likelihood MI ǡηˡȤƤ Z-score Dice ȤΤȤǤ롥
͡ʷˡˤĤƤϡAssociation measures ȡ
Hoffmann, Sebastian, Stefan Evert, Nicholas Smith, David Lee, and Ylva Berglund Prytz. Corpus Linguistics with BNCweb : A Practical Guide. Frankfurt am Main: Peter Lang, 2008.
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