%A Murat Bayraktar %A Bilge Say %A Varol Akman %J International Journal of Corpus Linguistics %T An Analysis of English Punctuation: The Special Case of Comma %X Punctuation has usually been ignored by researchers in computational linguistics over the years. Recently, it has been realized that a true understanding of written language will be impossible if punctuation marks are not taken into account. This paper contains the details of a computer-aided exercise to investigate English punctuation practice for the special case of comma (the most significant punctuation mark) in a parsed corpus. The study classifies the various ``structural'' uses of the comma according to the syntax-patterns in which a comma occurs. The corpus (Penn Treebank) consists of syntactically annotated sentences with no part-of-speech tag information about individual words. %N 1 %K punctuation, structural punctuation marks, comma, the Penn Treebank, the Wall Street Journal, corpus linguistics. %P 33-57 %V 3 %D 1998 %L cogprints214