... op-eration.3http://www.extractor.com/928Today, graph-based text representations are be-coming increasingly popular, due to their abil-ity to enrich the document model with syntacticand semantic relations. Salton ... disadvantage. To choose the best summary, multiple candidatesshould be generated and evaluated for each docu-ment (or document cluster).Following a different approach, Turney (2000)used a GA to learn ... SourcePOS F Closeness to the beginning of the document:1i(Edmundson, 1969)POS L Closeness to the end of the document: i (Baxendale, 1958)POS B Closeness to the borders of the document: max(1i,1n−i+1)(Lin...