Evaluation of Importance of Sentences based on Connectivity to Title

This t)apcr proposes a niel.hod of selecting impor-l;aiit Selil, eliees [rolili a I.exL Imscd Oil the evahlal,ion of the connectivil;y het.ween selltences by using stir-f'ace iil['Orlilation. \Vo ~tsSiilll(~ that. the l.ith.' of a text. is tile niost concise sl.at.elneiil, which expresses the niosl, essential iuPorniation el the texl, and Ilia{ the closer a senlellce relates to <q.ii hnporl:ant. SOill;ellCC.~ l.he niore iinportanl; this selilciice i.<-;. 'Fhe importance of a sent.elite iS defined as lhe connccl.ivity bel;ween the Selll,ence and the title. 'Fhc couneclivity be.l.Weeli t.wo Selll.ell('es is lllehSlll'e(I has~,d OI1 correfol'CllCe }){'-l.wceli a proliOUli aiid a preceding (pro)iiOUli, and on lexical cohesion el lcxical il.enis. In all experhnent wii.h 80 Eiiglish texts, which <:OllSist, (;if' &it average 0[' 29,0 SelltOlt('es, the proposed lllC%tlod has lll0,rkod recMl of 78.2% and l;irecision of 57.7%, with the selection ratio being 25%. The recall and precision vahics surpass those achieved by convenl~iona] nielh-ods, which liieallS that. olir illel hod is lllOl'e cft'eetivo in abridgilig relatiw;ly shorl texts.