Slides - University of Washington
Slides - University of Washington
Slides - University of Washington
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>University</strong> <strong>of</strong> <strong>Washington</strong><br />
Ling472 Introduction to Computational Linguistics<br />
Lecture 1:<br />
Introduction<br />
Why is language so hard?<br />
• As a simplification, let’s just consider text<br />
(speech processing has a separate set <strong>of</strong> problems)<br />
• Text representation <strong>of</strong> language<br />
I saw a man with a telescope.<br />
– This is a sequence <strong>of</strong> symbols<br />
– This is a “string” <strong>of</strong> characters or Unicode code points<br />
– This is an ordered collection <strong>of</strong> “words”<br />
– This is a “sentence”<br />
– This is a “surface” representation <strong>of</strong> a speech act<br />
– This is a surface representation <strong>of</strong> a semantic proposition<br />
Monday, April 1, 2013<br />
25
Change language