https://www.hlt.inesc-id.pt/wiki/index.php?action=history&feed=atom&title=Analysis_of_interrogatives_in_different_domains 2026-04-12T19:48:48Z Revision history for this page on the wiki MediaWiki 1.41.0 https://www.hlt.inesc-id.pt/wiki/index.php?title=Analysis_of_interrogatives_in_different_domains&diff=5802&oldid=prev 2010-05-04T17:49:12Z

<p></p> <p><b>New page</b></p><div>__NOTOC__<br /> {{infobox|name=Helena Moniz<br /> |username=helenam<br /> |contact=helenam<br /> |phone=+351-213-100-313<br /> |fax=+351-213-145-843<br /> }}<br /> <br /> == Date ==<br /> <br /> * 15:00, Friday, May 7&lt;sup&gt;th&lt;/sup&gt;, 2010<br /> * Room 336<br /> <br /> == Speaker ==<br /> <br /> * [[Helena Moniz]]<br /> <br /> == Abstract ==<br /> <br /> The aim of our study is twofold: to quantify the distinct interrogative types in different contexts and to discuss the weight of the linguistic features that best describe these structures, in order to model interrogatives in speech. <br /> <br /> In European Portuguese, as in other languages, interrogatives may be sub classified in yes-no questions, wh-questions and tags. These distinctions are accompanied by lexico-syntactic and prosodic features. <br /> Yes-no questions have the same syntactic structure of a declarative and may be differentiated by intonation contours; wh-questions have wh-words which make them recognizable; and tags have also distinctive forms, e.g., declarative sentence + negative particle + verb.<br /> <br /> State-of-the-art studies on sentence boundary detection and punctuation have discussed the relative weight of the previously mentioned features. <br /> Shriberg et al. (1998; 2008) report that prosodic features are more significant than lexical ones and that better results are achieved when combining both features; Wang and Narayanan (2004) claim that results based only on prosodic properties are quite robust; Boakye et al. <br /> (2009), analyzing meetings, state that lexico-syntactic features are the most important ones to identify interrogatives. This raises the following question: is the weight of the features dependent on the nature of the corpus and on the most characteristic types of interrogative in each?<br /> <br /> This study addresses that question, using three distinct corpora for European Portuguese: broadcast news (61h, 449k words), classroom lectures (27h, 155k words), and map-task dialogues (7h, 61k words). <br /> Results will also be presented for newspaper text (148M words). <br /> <br /> [[category:Seminars]]<br /> [[category:Seminars 2010]]</div>

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