--- abstract: "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." altloc: - http://www.cs.bilkent.edu.tr/~akman/jour-papers/ijcl/ijcl.ps chapter: ~ commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: [] creators_name: - family: Bayraktar given: Murat honourific: '' lineage: '' - family: Say given: Bilge honourific: '' lineage: '' - family: Akman given: Varol honourific: '' lineage: '' date: 1998 date_type: published datestamp: 1998-11-10 department: ~ dir: disk0/00/00/02/14 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 214 fileinfo: /style/images/fileicons/application_postscript.png;/214/2/ijcl.ps full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: pub issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'punctuation, structural punctuation marks, comma, the Penn Treebank, the Wall Street Journal, corpus linguistics.' lastmod: 2011-03-11 08:53:44 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: 1 pagerange: 33-57 pubdom: FALSE publication: International Journal of Corpus Linguistics publisher: ~ refereed: TRUE referencetext: ~ relation_type: [] relation_uri: [] reportno: ~ rev_number: 10 series: ~ source: ~ status_changed: 2007-09-12 16:25:16 subjects: - ling-comput - ling-syntax succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ thesistype: ~ title: 'An Analysis of English Punctuation: The Special Case of Comma' type: journalp userid: 178 volume: 3