Help needed: SKOS vocabulary error in Annif (using LCSH)

[Ilektra Osmani]

Dear Annif users,

I am a Master's student in Digital Humanities at Linnaeus University in Sweden, working on my thesis project exploring ML tools like Annif to support library subject cataloguing.

I am trying to use the LCSH SKOS vocabulary from https://id.loc.gov/download/ with Annif, but I keep getting this error:

'ValueError: Invalid vocabulary specification'

Has anyone successfully used the LCSH SKOS file with Annif? Do I need to convert or preprocess it in some way before it works?

Any help or pointers would be greatly appreciated!

Best regards,

Ilektra Osmani

[Osma Suominen]

Hello Ilektra Osmani,

I think the error is related to your Annif configuration. Can you please
show your projects.cfg (or .toml) file as well as the Annif command you
ran to load the vocabulary?

Best,
Osma

On 24/04/2025 21:27, Ilektra Osmani wrote:
> Dear Annif users,
>
> I am a Master's student in Digital Humanities at Linnaeus University in
> Sweden, working on my thesis project exploring ML tools like Annif to
> support library subject cataloguing.
>
> I am trying to use the LCSH SKOS vocabulary from https://id.loc.gov/

> download/ <https://id.loc.gov/download/> with Annif, but I keep getting
> this error:
>
> *'ValueError: Invalid vocabulary specification'*

>
> Has anyone successfully used the LCSH SKOS file with Annif? Do I need to
> convert or preprocess it in some way before it works?
>
> Any help or pointers would be greatly appreciated!
>
> Best regards,
>
> Ilektra Osmani
>

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--
Osma Suominen
D.Sc. (Tech), Information Systems Specialist
National Library of Finland
P.O. Box 15 (Unioninkatu 36)
00014 HELSINGIN YLIOPISTO
Tel. +358 50 3199529
osma.s...@helsinki.fi
http://www.nationallibrary.fi