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TF-IDF

TF-IDF

TF-IDF. David Kauchak cs160 Fall 2009 adapted from: http://www.stanford.edu/class/cs276/handouts/ lecture6-tfidf. ppt. Administrative. Homework 3 available soon Assignment 2 available soon Popular media article. Ranked retrieval. Thus far, our queries have all been Boolean

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746 views • 51 slides
Information Retrieval

Information Retrieval

Information Retrieval. Lecture 5. Recap of lecture 4. Query expansion Index construction. This lecture. Parametric and field searches Zones in documents Scoring documents: zone weighting Index support for scoring tf ? idf and vector spaces. Parametric search.

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477 views • 42 slides
Information Retrieval

Information Retrieval

Information Retrieval. Lecture 6. Recap of lecture 4. Query expansion Index construction. This lecture. Parametric and field searches Zones in documents Scoring documents: zone weighting Index support for scoring tf ? idf and vector spaces. Parametric search.

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426 views • 42 slides
Web Search and Text Mining

Web Search and Text Mining

Web Search and Text Mining. Lecture 3. Outline. Distributed programming: MapReduce Distributed indexing Several other examples using MapReduce Zones in documents Simple scoring Term weighting. Distributed Programming. Many tasks: Process lots of data to produce other data

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538 views • 41 slides
INFORMATION RETRIEVAL TECHNIQUES BY DR. ADNAN ABID

INFORMATION RETRIEVAL TECHNIQUES BY DR. ADNAN ABID

INFORMATION RETRIEVAL TECHNIQUES BY DR. ADNAN ABID. Lecture # 4 Vector Space Retrieval Model. ACKNOWLEDGEMENTS. The presentation of this lecture has been taken from the following sources

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164 views • 16 slides

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