Category Archives: Development

Geospatial discovery added to CLIO

We’re excited to announce that the latest CLIO release incorporates a new top level data source, joining Catalog, Articles, Academic Commons, and Web site search.
Select GeoData to search the Columbia University Libraries spatial data collection as well as the collections of several other institutions, using geographical constraints.
GeoBlacklight, a new open source platform for Geospatial discovery will be rolled out in parallel with this change to CLIO, and Quicksearch search results for GeoBL will be slotted in beneath Catalog results in our “bento” display:
As is the case for some other data sources such as Academic Commons, search and faceted filtering will be provided from within CLIO; once an item is selected manipulation and viewing of specific items will be handled from within GeoBlacklight itself.
Another new feature in this release is the display of hit counts next to each data source:

These counts will displayed after a search is executed right up until a facet has been applied. Our hope is that the display of hit counts will make it easier to see how results are distributed among the different data sources as well as increase awareness of data sources whose display may be ‘below the fold’.
Have a question or comment about CLIO?  Click on “Feedback / Help” in the upper right corner of any CLIO screen to connect to Ask a Librarian, or to submit CLIO Suggestions & Feedback.

CLIO 7.9.25: Highlighting Databases and Point-of-Need Help

The latest CLIO release adds several enhancements to the search interface.  Highlights include:

  • Links to full results labeled “View and filter” to promote facets.
  • Enhanced visibility for database records and a clearer label to Search Database.
  • Ask a Librarian service at point of need.  A no hits search will display the Ask a Librarian chat widget.
  • Refine options (author, library location, publication date, subjects, language, call number) in left sidebar are now sticky.  When opened, they will remain open between searches until closed.
  • The search box size is now responsive and will be larger on wider displays.Searchimprovements

Please see the release notes for a full list of changes in CLIO 7.9.25.

We welcome comments and suggestions for improving CLIO.  Your feedback is invaluable as we develop the interface. Please comment below, use the Suggestions & Feedback form under the “Help” menu in the upper right corner of CLIO, or Ask a Librarian.

Enhancing Search Results

The latest CLIO release includes a number of enhancements aimed at improving the relevance of search results.

Please continue to offer comments or suggestions for improving CLIO. Your feedback is invaluable as we develop the interface. Please comment below, use the Suggestions & Feedback form under the “Help” menu in the upper right corner of CLIO, or Ask a Librarian.

Changes to the CLIO Catalog Search

We’ve made two adjustments to the CLIO Catalog search based on feedback from faculty, students and librarians.

Stemming has been disabled.  Stemming, or lemmatization is a default feature of some SOLR databases.  It functions by reducing a word to its “stem” and then adding all possible suffixes.   Before the change, a search for Methodism retrieved  methodist(s) and methodism(s) but it also retrieves every record containing the terms method, methods, methodical, etc.    It also prevented searchers from using trunction/wildcards effectively because   in some cases the abbreviated stem was stored in the indexes, so a search for “methodis*” would not retrieved methodist or methodism because the term had been stored as “method“.

Stemming also affected facets and the ability to sort results.   This stemmed search for orientalism retrieved more than 52,000 records:


The new, unstemmed search retrieves 2% of the results retrieved by the stemmed search.  If no asterisk is used, it will match only on orientalism.  Facets will relate specifically to the search term, and sorting will be more useful.

However, searchers will need to remember to use the asterisk * wildcard/truncation symbol to get all possible endings for their searches: orientalis* will retrieve orientalist(s) orientalism(s) etc.


We are also no longer returning results that match on a library location, so a keyword search for Judith Butler will not return among its results all items shelved in Butler Library containing the word Judith anywhere in the record.  The location (in this case “Butler Stacks”) facet remains in place for filtering results by location.

These changes were made  in release 7.9.20, in November 2013, but we wanted to give more detailed information about them.  They affect only datasources that are derived from the Columbia library catalog.  The Articles and Academic Commons datasources are not affected by this change.

Questions or comments about any aspect of CLIO?  Your feedback is invaluable as we develop the interface.  Please comment below, use the Suggestions & Feedback form under the “Help” menu in the upper right corner of CLIO, or Ask a Librarian.

New Results List Displays in CLIO

The results list displays have been updated to include Standard and Compact views:
  • The per-page menu has been renamed “Display Options”
  • The active “per page” option now shows a checkmark, and is remembered between sessions
  • Results lists are numbered
  • Check boxes for selecting items now display on the left

Standard View:

The Compact View displays more records per screen
  • Lists of four or more holdings are collapsed on the Catalog Compact View results screen; click More to see the complete list of holdings
  • Titles are abbreviated to the first 100 characters
  • The Compact View setting is remembered between sessions

New Compact View:

 If you have a question about searching CLIO, please comment below or use the Suggestions & Feedback form under the “Help” menu in the upper right corner of CLIO. Or, Ask a Librarian.


Latest Release Adds Features to Articles Search

The latest CLIO release includes several enhancements to the Articles Search:

  • Advanced Search for combining elements like author and keyword
  • Basic Search now includes the ability to search by author, title, publication title,  ISBN and ISSN; in addition to the default All Fields search
  • Sorting and editing have been improved

See the 7.8.12 release notes for a complete list of the changes.