Turning on search snippets/hit highlighting generates snippets for some items, but not for others

[Paige Morgan]

We recently turned on the search snippets/hit highlighting function for our IR (currently running DSpace 7.4).

It works, but only on certain documents. You can see an example of this by searching our repository for "parties": https://udspace.udel.edu/search?query=parties&spc.page=2 

All of the items in the search results have been OCR'd, so if you download the item and search for the term, it's findable -- but I'm not clear on why snippets would show on some items, but not on others.  From what I can see, this isn't format-based -- some PDFs show snippets, while others don't -- though it looks as though documents from our digital collections (digitized newspapers and other documents) are much less likely to have snippets available. Similarly, PDFs that were generated from slidedecks also aren't showing snippets, and phrases from these sorts of documents don't return any hits when searched for in our repository.

I'm concerned -- does this indicate that our indexing might not be functioning effectively/completely, or that we might have turned on a setting to selectively index some collections, and not others?

Any advice/recommendations appreciated.

Paige

--------------------- Meeting/regular work hours: Monday - Thursday, 9am-5pm; limited email on Friday mornings.

Dr. Paige C. Morgan (she/her/they) Digital Publishing and Copyright Librarian, Head of Digital Initiatives & Preservation University of Delaware Library, Museums and Press (on Lenape land) Morris 118 ORCID: https://orcid.org/0000-0001-8076-7356 pai...@udel.edu 302.831.7153 Make an appointment to meet with me: https://calendly.com/paigecm/ (Meetings available via Zoom, phone, etc.) ** I observe email-free evenings and weekends. **