searching featured lists. about mercer university

Searching Featured Lists

Jeremy BrownLinda Chen

MercerUniversity Libraries

About Mercer University

• Academic University• 11 Schools• 10,000+ students

Featured Lists

• User Manual Page #107098• Supports review files of bib or item records• Do Not support other record types• Need to keep the list(s) from the Creating List

2 Steps

• Create a list• Set up a WWWOption

Step 1 – Create a List

Step 1 - Creating List Search Screen

Step 2 - WWWOption

Step 2 - WWWOption

• User Manual Page # 106908•WWWOPTION: FEATURED_LIST

Example 1

•WWWOPTION: FEATURED_LIST=[list]|[table_header]| [revfile_header]|[#recs_header]• FEATURED_LIST= 01,03,12,17

Example 2

•WWWOPTION: FEATURED_LIST=[list]|[table_header]| [revfile_header]|[#recs_header]• FEATURED_LIST=01,03,12,17|SELECTED TITLES|

TOPIC|# TITLES

Our WWWOption

FEATURED_LIST=[list]|[table_header]| [revfile_header]|[#recs_header]FEATURED_LIST=03,02,05,06,36|February 2012| Collections|# Titles

Feature List

•What do we use it for? Monthly New Book Lists Special Projects Display Different Collections Anyone has other suggestion?

Feature List

• This is ok, but..• Something is missing…

Cannot search the list

Searching Feature Lists

What We Wanted

•Menu of Feature Lists to Search• Keyword Search function

What We Noticed

• Feature List URLs always contain “ftlist” Review file number

• Result Record URLs always contain Review file number Bibliographic record number

Anatomy of a List URL

A Result URL

Anatomy of a Result URL

This Sounded Indexable!

• Each URL contains the list review file• Each URL contains the bib number• Bibliographic records have lots of key words.

Indexing WebPAC Feature Lists

Technologies Used

• Nutch: http://nutch.apache.org/• SOLR: http://lucene.apache.org/solr/• jQuery/AJAX: http://jquery.com

Flow Chart

Crawl TheWebPAC

What Does Nutch Do?

1. Read list of URLs2. Download one of the URLs3. Extract all the links on the page, add to list

of URLs4. Extract the full text of the page5. Repeat until done with URLs6. Send Pages to SOLR for indexing

Set up WebPAC for Crawling

•We need to let our crawler look at the WebPAC• Name the crawler in

[nutch_home]/conf/nutch-site.xml

• Edit /iiidb/http/robots.txt• Add:

User-agent: MercuSpiderDisallow:

Goals of Nutch URL Configuration

• Only want bibs from the featured lists•We do not want to crawl:

MARC view Save record screens Request item screens Probably others…

•We do not want to index the whole WebPAC

Set up Nutch for Crawling the WebPAC

• Edit nutch/conf/regex-urlfilter.txt• Add:

-^http://library.mercer.edu/.*request.*-^http://library.mercer.edu/.*save.*-^http://library.mercer.edu/.*marc.*+^http://library.mercer.edu/search~S1.*ftlist

Indexing withSOLR

What Is SOLR?• A search engine in a box• Put documents in• Creates a full text index• Answers queries

Set up Solr for Crawling the WebPAC• SOLR comes ready to run• It works well with Nutch• Easy to use as search engine back end

The Single, Solitary SOLR Modification

• Add to solr-example/solr/conf/solrconfig.xml

<requestHandler name="/mercuFtlist" class="solr.StandardRequestHandler"> <lst name="defaults"> <int name="rows">10</int> <str name="echoParams">explicit</str> <str name="fl">url,id</str> </lst> <lst name="appends"> <str name="fq">(url:ftlist)+(url:\+\+ftlist/\+\+ftlist)</str> </lst> <lst name="invariants"> <bool name="facet">false</bool> </lst></requestHandler>

SOLR Request Handler, Explained

•We only want the URL and ID in our results

•We only want to search items that appear in the feature list

<str name="fq">(url:ftlist)+(url:\+\+ftlist/\+\+ftlist)</str>

<str name="fl">url,id</str>

Performance Hit (Millennium)

Performance Hit (Web Server)

Searching

Architecture• Standard web form• AJAX calls to SOLR for results• AJAX results enhancement

Search Form

Search Form in the WebPAC

Basic Results Display

Enhanced Results

More Information• Our Featured Lists:

http://library.mercer.edu/search~S1?/ftlist• Visit our Systems page:

http://libraries.mercer.edu/university-libraries/systems-department/iug-2012or: http://goo.gl/3q3QV

•MAJAX is located here:http://libx.org/majax/

Thank You!