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2012-10-31 Wed

#1283. η׻ˡ [corpus][statistics][bnc][collocation][lltest]

[2010-03-04-1]ε#311. girl Ȥ褯 collocate ƻϲפǡȸζ (collocation) ¬׻ˡ (association measure) ˤϤĤμब뤳Ȥ򸫤ѥؤǤϡLog-Likelihood Test Ȥˤ׻ˡŪ褯ȤƤ뤬줾η׻ˡˤħΤǡʤ٤ʣˡΤ褤[2010-03-04-1]ƤȽʣʬ⤢뤬BNCweb ǼƤ7η׻ˡγơˤĤ Hoffmann et al. (149--58) 򻲾Ȥʤ顤ħѤΥҥȤ򼨤
Ƽη׻ˡϡ(a) (frequency of co-occurrence)(b) ͭ (significance of co-occurrence)(c) եȡ (effect-size) 1ġ뤤ʣȤ߹碌˴ŤƤ롥(b) ϡŪͭդǤȤγο٤ɽ魯ɸǤꡤζɽ魯ΤǤϤʤȤդɬפ롥(c) ϡѻ٤ȴ٤Ȥ׻δܤȤɸǤ롥

(1) Rank by frequency
ѻ붦٤ΤΤѤ롤ǤñľŪʼ١¾η׻ˡΤ褦ʣ׽ϤۤɤƤ餺ɸȤƤϺǤƤǽɵʤɤ̤뤳Ȥ¿̾ζʬϤˤѤʤ

(2) Log-likelihood
ͭѤ롥BNCweb ΥǥեȤη׻ˡǡѥǹѤƤ롥ǽɵʤɤζˤƹ٤θȤζ䡤դ˶ˤ٤θ1, 2ʤɡˤȤζϤ롥٤ι⤤Ȥ߹碌˹ͿȤħꡤˤդפ롥

(3) Mutual information (MI)
եȡѤ롥ˤ褯ѤƤ׻ˡѤäƤ¿դפ롥ǽɵʤɤȤΤդ줿ŪӽƤϤ褤ȿ̡٤ζɽؤФ꤬㤷Фαƶ򸺤뤿ˡBNCweb 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
٤ȶͭθ׻ˡ٤1ʲ٤εʶɽˤĤƤ Rank by frequency Ȼ褦ʿ񤤤򤷡٤ι⤤ɽˤĤƤ϶ͭȿǤ񤤤򤹤롥ޤѻ٤٤ɬ⤯ʤ롥Log-likelihood ̤Ȥʤ뤳Ȥ¿٤ؤΥХϰضʤ롥ΡɤΤΤ1000礭ˡ̤ȯ뤳Ȥ롥

(5) Z-score
ͭȥեȡθ׻ˡ٤ζɽˤϥեȡŻ뤹뤬٤ζɽˤϤޤǥեȡ˴꤫ʤLog-likelihood MI ξħ褦ʡХ󥹤μ줿ɸǤ롥MI Ʊͤˡ٤ζɽؤΥХߤΤǡ"Freq(node, collocate) at least" 5٤ꤹΤ褤Ȥ롥

(6) MI3
٤ȥեȡθ׻ˡMI ΤɽؤнŤ٤Ƥ롥ٶɽˤϥեȡٶɽˤ϶٤Ū褯ȿǤ롥POS ˤȤȤѤȸŪʣ줫ʤѸʤɤμФ˰Ϥȯ롥ΤȤƤϹٶɽؤΥХŪʶʬϤˤϸʤ

(7) Dice coefficient
MI3 Ʊͤˡ٤ȥեȡθ׻ˡMI3Ȱۤʤꡤٶɽˤ϶٤ٶɽˤϥեȡ褯ȿǤ졤ξԤڤؤޤʤΤħŪǤ롥ڤؤϡΡɤΤΤ٤ɽ٤10ܤۤɤǵȤ롥иŪˡZ-score Ȼ褦ʷ̤뤬Z-score ۤ٤˴ŤХʤ

ʾΤ褦¿ढäܰܤꤹ뤬Hoffmann et al. θˤСñη׻ˡȤƤ Log-likelihood MI ǡη׻ˡȤƤ Z-score Dice ȤΤȤǤ롥
͡ʷ׻ˡˤĤƤϡAssociation 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.

Referrer (Inside): [2019-07-10-1]

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