Stop lists - PowerPoint PPT Presentation

EE3J2 Data Mining Lecture 3 Zipf’s Law Stemming &amp; Stop Lists Martin Russell

EE3J2 Data Mining Lecture 3 Zipf’s Law Stemming &amp; Stop Lists Martin Russell. Objectives. Understand Zipf’s law Understand utility of Zipf’s law for IR Understand motivation and methods of Stemming Understand definition and use of Stop Lists. Zipf’s Law. George Kingsley Zipf (1902-1950)

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558 views • 37 slides

CS 430 / INFO 430 Information Retrieval

CS 430 / INFO 430 Information Retrieval. Lecture 5 Searching Full Text 5. Course Administration. Assignment 1 • The final version of the assignment has now been posted. There are a number of small changes to simplify the assignment for everybody, including the graders.

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368 views • 34 slides

CS 430: Information Discovery

CS 430: Information Discovery. Lecture 7 Text Processing Methods 2. Course administration. The following slides will be discussed at the beginning of Lecture 8. Lexical Analysis: Tokens. What is a token? Free text indexing

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192 views • 16 slides

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Stop lists - PowerPoint PPT Presentation

EE3J2 Data Mining Lecture 3 Zipf’s Law Stemming &amp;amp; Stop Lists Martin Russell

CS 430 / INFO 430 Information Retrieval

CS 430: Information Discovery

EE3J2 Data Mining Lecture 3 Zipf’s Law Stemming & Stop Lists Martin Russell