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Index term appears - PowerPoint PPT Presentation

LIS618 lecture 2

LIS618 lecture 2. Thomas Krichel 2004-02-07. Structure. Theory: information retrieval performance Practice: more advanced dialog. retrieval performance evaluation. "Recall" and "Precision" are two classic measures to measure the performance of information retrieval in a single query.

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286 views • 28 slides

LIS618 lecture 3

LIS618 lecture 3. Thomas Krichel 2002-09-23. Structure of talk. The blue sheet Working with Dialog Nexis.com. using dialog. go to command search pass warning screen you get to "dialog web command search" http://www.dialogweb.com/cgi/logoff?mode=guided&url=/cgi/dwframe?href=search.html

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276 views • 27 slides

LIS618 lecture 6

LIS618 lecture 6. Thomas Krichel 2003-03-05. structure. DIALOG basic vs additional index initial database file selection (files) Lexis/Nexis. basic vs additional index. the basic index has information that is relevant to the substantive contents of the data

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283 views • 18 slides

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Index term appears - PowerPoint PPT Presentation

LIS618 lecture 2

LIS618 lecture 3

LIS618 lecture 6