1	Virtual Browsing via Deeplinked Catalog Searches Scott Warren Librarian for the Physical and Mathematical Sciences Research and Information Services NCSU Libraries
2	Why browsing? Poorly replicated in most online environments Access to collection subsets Lists are easy to use Takes the stacks to the remote patron Great for specialist exploring large collection
3	Advantages Dynamic content Manually created, but not manually maintained Opens up print collection Uses power of LCSH and LC call numbers Easy editing/low maintenance for subject specialist Guarantees something relevant is found
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21	How does it work? Javascript makes creating menus easy Forms make the dropdown menus Search syntax complex, but easily edited Very little coding is required
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24	"<FORM NAME="form1..."
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29	Advantages Dynamic content No updating necessary as collection changes Easy editing/No large scale systems maintenance Opens up print collection Uses power of LCSH and call numbers Data already in place
30	But… Idiosyncratic One at a time production Not comprehensive across collection Relies on creating web page for each new implementation Doesn’t scale well in this production mode Buried by library’s site architecture
31	Compare to Michigan’s ‘High-level Browse’ project Similarities Based on LC classification schedules Uses data that already exists No changing of individual catalog records Maintenance does not require systems help Focus on collection at hand
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36	Compare to Michigan’s ‘High-level Browse’ project Differences Mine not global in scope Mine placed at point of need/Grassroots solution ‘Tertiary’ level browsing Michigan maps topics to multiple call # ranges I map LCSH/LC#s to topics 1-to-1 Based on both LC # and LCSH No MySQL, perl, or php
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41	Automated/Scaling up??? Could LCSH terms/call #s be ‘selected’ or ‘harvested’? Search URL generated with correct LCSH appended LCSH and URL added to a table/spreadsheet where subject specialist creates menu term Table is mapped to menu on public page. Form already created.
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46	Frequency distributions of call numbers for LCSHs Even within an LCSH, there is location ‘drift’ One primary LC #, but many others too LCSH ‘differential equations partial’ QA377 (main #) QC20.7 QA3 TA418 TA347 QA1 QC157 QA11.2
47	Frequency distributions of call numbers for LCSHs Not sorting the actual titles by call # But producing distributions top 3-5 call number ‘areas’ for browsing Histogram?? SciFinder Scholar, Web of Science
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55	Advantages Dynamic content No updating necessary as collection changes Easy editing/No large scale systems maintenance Opens up print collection Uses power of LCSH and call numbers Data already in place
56	Contact me Scott Warren Scott_warren@ncsu.edu (email) Scottyref (AIM) 919-513-0303 http://www.lib.ncsu.edu/risd/staff/warren