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2012-10-27 Sat

#1279. BNC ζߤȼ [bnc][corpus][representativeness]

108--114֤ˤ錄ꡤΩرѸ춵鸦ˤŤǡLancaster ̾ Geoffrey Leech θֱ񤬳줿ϡ2ܤ "The British National Corpus: Both a Triumph and a Failure" ꤹֱΤߤλääİ˹ԤäBNC ԼԤκäʤɡ⤷ää
̾ˤ "triumph" "failure" ˤĤơLeech Ϥ줾켡Τ褦ʹܤ󤷤Ƥ

A triumph:
It has been claimed that the BNC is the most widely used corpus in the world.
It was the first text corpus of its size to be made widely available.
It is available from a wide range of different sources.
It is widely regarded as a 'standard reference corpus' for the English language.
It has been licensed to over 1300 institutions throughout the world, over 1800 users have signed on for access to it through the BNCweb online interface, etc.

A failure:
It never reached 100 million words! (98,300,000)
The design criteria were never totally achieved.
It hardly ever contains complete texts.
The spoken materials are poorly transcribed.
The metadata are incomplete and can be erroneous.
The part-of-speech tagging contains many errors.
It is out of date! (dating from the late 20th century)


Leech θդüˤϡtriumph γ˼Ƥ褦ˡӤ΢դ줿ߤʤäƤΥѥԽˤĤơФ褫äФ褫äȤθȤ⤤ȿ¿󤲤ƤΤŪǤ롥BNC ΥդѤ줿ץ CLAWS4 ٤97%ۤɤHoffmann et al. 43 ˤȡ98--99%ˤȤΤϡ϶ä٤ȤȻפäƤѥϤ礭ΤǿѡȤΥ顼ȤϤäƤ300ˤΤܤȤ¤ϸȤƤäȤХѥˤĤƤϡѥΤ1ۤɤޤʤäȡǡ transcription μäȡѤǡեޥå TEI äȤФΥդˤɬŬڤǤʤäȡʤɤ󤲤Ƥ
ʤǤ⡤ʳ鸽ߤ˻ޤǰӤƤ³Ƥɽ (representativeness) ˤĤơBNC ǤϴṲ̄ʤäȤˡˤޤƤʳ顤ꤹ Text Domain ΥХ󥹤䥵˴ؤŤͤƤȤϤ褯ΤƤ롥1桼ȤƤϡ¤줿꥽ΤʤǡɽݤȤϰζȤɾƤ뤬Leech ˤȤäƤϡǤ¤ΤȤϤäȤȿ̤Ȥơ̤ۤʤäȤפ⶯褦Ʊˡ䤫ʸĴǤϤäBNC Ӥ¾Τ٤Ƥ絬ϥѥɽ򤵤ۤɽŻ뤷ƤʤȽƤ༫ȤҤ٤Ƥ褦ˡѥɽˤĤȼϤäƤ뤬ǽŪˤ "impressionistic" ȽǤȹͤƤ褦Ǥꡤ񤷤ˤޤƤˤ衤Leech ɽؤμǰζˡ٤ʥץեåʥꥺ򴶤
ʤ[2012-07-05-1]ε#1165. ѹǥѥ椬ˤʤäطʡפǿ줿̤ꡤǰʤBNC³ԤϤʤȤȤLeech Ƥ
礭ۤʤ뤬Ѹ쥳ѥ The LAEME Corpus ɽˤĤơ[2012-10-10-1], [2012-10-11-1]εǹͻΤǡȤ

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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