Construction of a Bilingual Dictionary Intermediated by a Third Language

Con, tructlon of a ]3ili:ngua, l )" • 1 tci, onary Intermediated by a Third Langua, ge Kumiko TANAKA Kyo.ii UMEM[JID\ ])ivisim, of Engineering, University of Tokyo. NTT Basic ]h, sea.rch ],almratm'i(,s. 7-31 Ihmgo, Bunkyouku, Tokyo, 113, ]la.palL 3-9-II Midm'i, Musashino, 'l))kyo, t80, JalmU. kun~iko(gipl, i;. u-Lokyo, ac. j p umemur a@nue ram. NTT. JP Abstract; When using i~ third l;mgu;~g(' to const:rl,(:t a bilin- gum dictionary, it is necessary t;o discriminate equiwflencies from imwprol)riat:o words deriw~d as ,~ resnll; of ambiguity in I:hc third lat<gmtge. We propose it metho(l 1:o t;re,d: this by utilizing the strucl;llr(m of di(:donari(,s to measm'(~ die near. n(,ss of the meanings of words. Th(' resuli:ing dic- I;ionary is it wor(l-I:o-wor([ })ilingu;d dictionary (,f nOllIiS and can })e used t:() refin,~ I;h(, (mt.ri(m and equlvalm~eies in published bilingual dicl:hmarie'.. 1 Introduction When vocabulary cmmot be found in bilingual dictionaries, it is freqnendy obt;ain(;d by using a l:hird language as an intermediary. ']'his imlical;es thai: SUl)i)lemei~tal informal, ion llla, y lie in ot;her forlns in other dicl;ionarie.~< I[(;re we Lry nsinp; electroni(" (ti(:i;ionaries which cau t)e rel'ormod (m it large s(:ah.', 1:o extract; this iMornud;ions so thai: w(' can ohi;Mn subsidiary (la, t;a and re{hi(! a (llr(~(:t: bilingual dictionary. Looking up words in bilingual dicl:i(maries in termediating the third llutguage is a inethod ofl;en used by t)eople who handh.' m~(:omm(m ]itll,~ll;14~(;s in a specific domain. If this i)ro(:ess c;m l)e mlt;O-- nutt(,(t, biliI~gual (tiedonmries of any kind l)el;ween any languages may l)(: ol)taine([ its long ;m l:ho.'m concerned languagos haw' di(:donaries to a (:(mt- mort hmp;uage. One objecl;iw,. (ff the r(!sem'(:h r('- l)orte([ here is to est;al)lish ;t first st(' 1, in itlli;OllH'ti,- lug t;his i)roeess. To consl;ruet, a £1apanese~-+lh'ench dictiom~ry, we chose English its tim inte.rme(liary l;m/,;u;q,/(', beta, rise JN)anesev-+English and Englishv-d)'rench dictionaries e.xist in electronic forms and because publMw, d aN)anese~l,'rench dicl;ionm'ies provide enough vocabulary in comparison with the result- ing dict;iona.ry. In Section 2 we describe a method for exl:ra(:t;- ing equiv,'denei(;s for a given wor(I. ]l;s fmMamen- tel concepts m:e stated in Secti(m :3. Tim whole. procedure used to construct th(', new dictionary is shown in Section 4 ~tn(l in Se(:t,i(,n l] t:he r('suli;ing dictionary is evaluated. aapml(,se-English, English-J~tpltilese, Euglish- Fren(:h, French-F, iw;lish , a;q~mmse-l,'renc]l and Freneh-Jal);mese dictionaries are rest)eel:ively de- not:ed l)icj _~, Oico._Q, Dice_ ,:e, I)ic:e_ ,o, Dicj. <f, and D:i.c~. ,j, Dic .... 7J i'~ called ~m i'n.verse die-, t'm.na.r!] of Dicy ........ J:q)atm.qe words ]uw(; hfl'or- mat:ion in the followi.t,~ ['ormat: promtn('i~tl:ion in r(muji, and i1..~; ('(lIfiwd('at(:c in English. English words are writ:ten in this lbnt and Frenc]l words in this fonl;. 2 Ov(u'view of the M(~I;ho(l 2.1. hlverse ConsulI;ation '.l'he m(,sl> naive w;~y t:o use l,]ngli:di to ol)tain l"reH(:h wor(ls (:(~rres[mB(liltg I;o :t ,]a,l}:Ul(:s(~ w(n'(l is t:o h)ok ltl) t]l(~ Jalmmese word iu a Dicj_.e am(I th(m look up {:he rosultaut; En,,~lish words in ;~ Dice ,/,. The r(m,dlting Fren(:h words (:m~ I,(: regard('(| its e(luivMenco c~mdldates (E(]s) o[' the origin~d Jal)an('.:m wt)M. For ex;ullple, ill Fit';. …

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