?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Similarity+of+Semantic+Relations&rft.creator=Turney%2C+Peter+D.&rft.subject=Language&rft.subject=Computational+Linguistics&rft.subject=Semantics&rft.subject=Machine+Learning&rft.subject=Artificial+Intelligence&rft.description=There+are+at+least+two+kinds+of+similarity.+Relational+similarity+is+%0Acorrespondence+between+relations%2C+in+contrast+with+attributional+similarity%2C+%0Awhich+is+correspondence+between+attributes.+When+two+words+have+a+high+%0Adegree+of+attributional+similarity%2C+we+call+them+synonyms.+When+two+pairs+%0Aof+words+have+a+high+degree+of+relational+similarity%2C+we+say+that+their+%0Arelations+are+analogous.+For+example%2C+the+word+pair+mason%3Astone+is+analogous+%0Ato+the+pair+carpenter%3Awood.+This+paper+introduces+Latent+Relational+Analysis+(LRA)%2C+%0Aa+method+for+measuring+relational+similarity.+LRA+has+potential+applications+in+many+%0Aareas%2C+including+information+extraction%2C+word+sense+disambiguation%2C++%0Aand+information+retrieval.+Recently+the+Vector+Space+Model+(VSM)+of+information+%0Aretrieval+has+been+adapted+to+measuring+relational+similarity%2C+%0Aachieving+a+score+of+47%25+on+a+collection+of+374+college-level+multiple-choice+%0Aword+analogy+questions.+In+the+VSM+approach%2C+the+relation+between+a+pair+of+words+is+%0Acharacterized+by+a+vector+of+frequencies+of+predefined+patterns+in+a+large+corpus.+%0ALRA+extends+the+VSM+approach+in+three+ways%3A+(1)+the+patterns+are+derived+automatically+%0Afrom+the+corpus%2C+(2)+the+Singular+Value+Decomposition+(SVD)+is+used+to+smooth+the+frequency+%0Adata%2C+and+(3)+automatically+generated+synonyms+are+used+to+explore+variations+of+the+%0Aword+pairs.+LRA+achieves+56%25+on+the+374+analogy+questions%2C+statistically+equivalent+to+the+%0Aaverage+human+score+of+57%25.+On+the+related+problem+of+classifying+semantic+relations%2C+LRA+%0Aachieves+similar+gains+over+the+VSM.+&rft.date=2006&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5098%2F1%2FNRC-48775.pdf&rft.identifier=++Turney%2C+Peter+D.++(2006)+Similarity+of+Semantic+Relations.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5098%2F