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menu and content changes for ver 2.11

\label{Search_Advanced}
\index{search repository, advanced}
The Advanced Search in LON-CAPA allows you to search specific metadata
fields for matching resources.  Resources which match all of the
constraints specified will be returned.

For many of the search fields, a ``related words'' checkbox is
available.  This causes each search term or quoted phrase in the
search for that field to be matched in our thesaurus.  Resources which
matches in the given field any of the search phrases (depending on the
logic in the original search phrase) will be returned.

The following fields can be searched:

\begin{itemize}
\item Title
\item Author
\item Publisher/Owner
\item Author Space
\item Last Modifying User
\item Keywords
\item Notes
\item Abstract
\item Standards
\item Mime type
\item Lowest grade level
\item Highest grade level
\item Domain
\item Copyright
\item Language
\item Creation and Modification Dates
\end{itemize}

Dynamic metadata, computed based on resource usage statistics, can be
searched as well.  The following fields can be searched, with a minimum
or maximum value being specified:

\begin{itemize}
\item Network-wide number of accesses (hits)
\item Total number of students who have worked on this problem
\item Average number of tries till solved
\item Degree of difficulty
\item Degree of discrimination
\end{itemize}

Evaluation data may be searched, with a minimum or maximum value being specified:
\begin{itemize}
\item Material presented in clear way
\item Material covered with sufficient depth
\item Material is helpful
\item Material appears to be correct
\item Resource is technically correct
\end{itemize}