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<span style="background-color:transparent">****<span> </span></span>CALL<span style="background-color:transparent"><span> </span>FOR<span> </span></span>PARTICIPATION<span style="background-color:transparent"><span> </span>****</span></p>
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Sentiment Analysis in Twitter</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
SemEval 2014 Task #9</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;min-height:15px;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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<a style="color:rgb(17,85,204)" href="http://alt.qcri.org/semeval2014/task9/" target="_blank">http://alt.qcri.org/semeval2014/task9/</a></p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;min-height:15px;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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INTRODUCTION </p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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We propose a sentiment analysis task and the development of a twitter sentiment corpus to promote research that will lead to a better understanding of how sentiment is conveyed in tweets and texts. <span style="color:rgb(41,39,41)"><i>This is a rerun of SemEval-2013 task 2 (Nakov et al, 2013) with new test data from (i) Twitter and (ii) another (surprise) genre.</i></span></p>
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There will be two sub-tasks: an expression-level task and a message-level task;<span> </span><span style="background-color:rgb(255,254,204)">participants</span><span> </span>may choose to<span> </span><span style="background-color:rgb(255,254,204)">participate</span><span> </span>in either or both tasks.</p>
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- Task A: Contextual Polarity Disambiguation</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Given a message containing a marked instance of a word or phrase from a sentiment lexicon, determine whether that instance is positive, negative or neutral in that context.</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;min-height:15px;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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- Task B: Message Polarity Classification</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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Given a message and its topic, classify whether the message is of positive, negative, or neutral sentiment towards the topic. For messages conveying both a positive and negative sentiment toward the topic, whichever is the stronger sentiment should be chosen.</p>
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IMPORTANT DATES</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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Trial data ready October 30, 2013</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Training data ready<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>December 15, 2013</span></span> [TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Test data ready<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>March 10, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Evaluation start<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>March 15, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Evaluation end<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>March 30, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Paper submission due<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>April 30, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Paper reviews due<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>May 30, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Camera ready due<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>June 30, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(34,34,34);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
SemEval workshop<span> </span><span style="border-bottom-color:rgb(204,204,204);border-bottom-width:1px;border-bottom-style:dashed" tabindex="0"><span>August 23-30, 2014</span></span><span> </span>[TBC]</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;min-height:15px;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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MORE INFORMATION </p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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The Semeval-2014 Task #9 website</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
<a style="color:rgb(17,85,204)" href="http://alt.qcri.org/semeval2014/task9/" target="_blank">http://alt.qcri.org/semeval2014/task9/</a></p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;min-height:15px;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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If interested in the task please join the Google group</p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
<a style="color:rgb(17,85,204)" href="mailto:semevaltweet@googlegroups.com" target="_blank">semevaltweet@googlegroups.com</a></p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;min-height:15px;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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To register for<span> </span><span style="background-color:rgb(255,254,204)">participation</span></p><p style="font:13px/normal Arial;margin:0px;color:rgb(18,85,204);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
<span style="text-decoration:underline"><a style="color:rgb(17,85,204)" href="http://www.cs.york.ac.uk/semeval-2013/index.php?id=registration" target="_blank">http://alt.qcri.org/semeval2014/index.php?id=registration-1</a></span></p>
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ORGANIZERS </p><p style="font:13px/normal Arial;margin:0px;color:rgb(35,35,35);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
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Sara Rosenthal, Columbia University<br>Alan Ritter, The Ohio State University<br>Veselin Stoyanov, Facebook</p><p style="font:12px/normal Verdana;margin:0px;color:rgb(41,39,41);text-transform:none;text-indent:0px;letter-spacing:normal;word-spacing:0px;white-space:normal;font-size-adjust:none;font-stretch:normal;background-color:rgb(255,255,255)">
Preslav Nakov, Qatar Computing Research Institute</p></div>