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# Linked Open Data
The following Jupyter Notebooks showcase some of our work with Linked Open Data.
## [Viewer Links from BIBFRAME](ViewerlinksFromBibframe.ipynb)
Downloading data from the library services platform
[Alma](https://knowledge.exlibrisgroup.com/Alma) and loading the results into a [pandas](https://pandas.pydata.org/)
dataframe, we create an [xlsx file](ABOExamplesFromALMAextended.xlsx) with the catalogue metadata. Further we add links
to the digital object and the barcodes of the physical objects to the file.
## [Viewer Links from BIBFRAME with SRU](ViewerlinksFromBibframeWithSRU.ipynb)
Very similar to the above, but this time we make an SRU-Query in Alma.
## [Travelogues](Travelogues.ipynb)
Working together with other institutions on the [Travelogues Project](http://www.travelogues-project.info/), we needed
to extrect specific metadata from Alma, both catalogue data and LOD data.
## [SACHA Statistik Collection](SACHA Statistik Collection.ipynb)
Using [SPARQL](https://labs.onb.ac.at/en/tool/sparql/) and pandas we extract datasets with
a specific subject heading. Making use of [SACHA](https://iiif.onb.ac.at/) we then create a collection of the data we
queried.
## [OAI-PMH](OAI-PMH.ipynb)
We show how to use [Sickle](https://sickle.readthedocs.io/en/latest/) to first list all available sets and then count
the number of entries in one specific set.
## [Harvest ABO Marc](harvest_abo_marc.py)
Small script to harvest ABO metadata in Marc format via OAI-PMH.
## [MARCXML to MARC21 transformation](MARCXML to MARC21.ipynb)
Small script to harvest MARCXML records via OAI-PMH and to store it as raw MARC21. This step can help if you want to process the data e.g. via [MarcEdit](https://marcedit.reeset.net/).
[](https://mybinder.org/v2/git/https%3A%2F%2Flabs.onb.ac.at%2Fgitlab%2Flabs-team%2FLOD/master)