124.11.lec1

124.11.lec1 - CS 124/LINGUIST 180 From Languages to...

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CS 124/LINGUIST 180 From Languages to Information Dan Jurafsky Stanford University Lecture 1 Introduction and overview, regular expressions, finite automata
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Part I: What this course is about Automatically extracting meaning and structure from: Natural language text Speech Web pages Social networks (and other networks) Genome sequences 1/3/11 2
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1/3/11 3 Commercial World Lots of exciting stuff going on…
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1/3/11 4 Big Applications Information Retrieval and Extraction Web Search Sentiment Analysis Summarization Text Categorization Machine Translation Question Answering Speech Recognition
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Information Extraction and Sentiment Analysis http://www.bing.com/search?q=canon Sentiment analysis Attribute detection Relation extraction 1/3/11 5
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Sentiment Emotional Spell Check One of NYTimes 10 big idea of 2010 http://www.nytimes.com/interactive/ 2010/12/19/magazine/ideas2010.html - Emotional_Spell-Check 1/3/11 6
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1/3/11 7 Blog Analytics Data-mining of blogs, discussion forums, message boards, user groups, and other forms of user generated media Product marketing information Political opinion tracking Social network analysis Buzz analysis (what’s hot, what topics are people talking about right now).
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Livejournal.com: I, me, my on or after Sep 11, 2001 Graph from Pennebaker slides Cohn, Mehl, Pennebaker. 2004. Linguistic markers of psychological change surrounding September 11, 2001. Psychological Science 15, 10: 687-693.
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September 11 LiveJournal.com study: We, us, our Cohn, Mehl, Pennebaker. 2004. Linguistic markers of psychological change surrounding September 11, 2001. Psychological Science 15, 10: 687-693. Graph from Pennebaker slides
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LiveJournal.com September 11, 2001 study: Positive and negative emotion words Cohn, Mehl, Pennebaker. 2004. Linguistic markers of psychological change surrounding September 11, 2001. Psychological Science 15, 10: 687-693. Graph from Pennebaker slides
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Results from Pennebaker study Bloggers after 9/11 greater negative emotion more socially engaged 1/3/11 11
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Extracting Social Meaning from Speech Uncertainty (students in tutoring) Annoyance callers to dialog systems: Deception Emotion Intoxication http://www.youtube.com/v/setItyCfMcY Flirtation, Romantic interest
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Google Translate The translation %2F%2Fwww.cocinadominicana.com%2Facompanamientos-ensaladas- pastelones%2F1907-tostones.html The original recipe for tostones http://www.cocinadominicana.com/acompanamientos-ensaladas- pastelones/1907-tostones.html
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Machine Translation The Story of the Stone (“The Dream of the Red Chamber”) Cao Xueqin 1792 Chinese gloss : Dai-yu alone on bed top think-of-with- gratitude Bao-chai again listen to window outside bamboo
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124.11.lec1 - CS 124/LINGUIST 180 From Languages to...

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