bobdc blog2024-02-25T10:58:00-0500Bob DuCharmehttps://www.bobdc.comhttps://www.bobdc.com/blog/Using regular expressions to manipulate data in a SPARQL queryhttps://www.bobdc.com/blog/regex/2024-02-25T10:58:00-05002024-02-25T10:58:00-0500A pure, standards-compliant SPARQL query.Appreciating the SPARQL property path slash character morehttps://www.bobdc.com/blog/slashnote/2024-01-21T10:25:00-05002024-01-21T10:25:00-0500Querying for labels and more.Triples about existing tripleshttps://www.bobdc.com/blog/etriplesabout/2023-12-17T10:35:00-05002023-12-17T10:35:00-0500The easy way and the hard way.Querying for labelshttps://www.bobdc.com/blog/wikibaselabel/2023-11-19T11:20:00-05002023-11-19T11:20:00-0500The normal way and the wikibase:label service wayHuman-readable names in RDFhttps://www.bobdc.com/blog/rdflabels/2023-10-29T11:04:00+00002023-10-29T11:04:00+0000Sometimes simple, sometimes not.My brief tenor banjo careerhttps://www.bobdc.com/blog/tenorbanjo/2023-09-24T10:50:00+00002023-09-24T10:50:00+0000Brief but symphonic.Nicer date and time handling in SPARQL 1.2https://www.bobdc.com/blog/sparql12time/2023-08-18T10:25:00+00002023-08-18T10:25:00+0000Add, subtract, and ADJUST() dates and times. Passing your own data to use in Wikidata visualizationshttps://www.bobdc.com/blog/your-values-wikidata/2023-07-23T11:15:00+00002023-07-23T11:15:00+0000A VALUES-based approach.Entity recognition from within a SPARQL queryhttps://www.bobdc.com/blog/spacy/2023-06-25T10:53:00+00002023-06-25T10:53:00+0000Using my new employer's excellent free product.Getting ChatGPT to turn a flat vocabulary list into a hierarchical taxonomyhttps://www.bobdc.com/blog/chatgpttaxonomy/2023-05-20T11:15:00+00002023-05-20T11:15:00+0000ChatGPT-3, Chat GPT-4.More advice about software documentationhttps://www.bobdc.com/blog/techwritingadvice/2023-05-14T12:10:00+00002023-05-14T12:10:00+0000Especially documenting APIs.Introducing RDF and related standardshttps://www.bobdc.com/blog/rdfintroseries/2023-04-30T11:01:00+00002023-04-30T11:01:00+0000The series.Normalizing company names (and more) with SPARQL and Wikidatahttps://www.bobdc.com/blog/wikidatanormalizing/2023-03-26T11:16:00+00002023-03-26T11:16:00+0000As a service!Using the AWS Graph Explorer with Fuseki and local datasetshttps://www.bobdc.com/blog/graphexplorerandfuseki/2023-02-26T11:03:00+00002023-02-26T11:03:00+0000An open source visual graph navigator.SPARQL and OWL on the command lineāof my phone!https://www.bobdc.com/blog/rdflibonphone/2023-01-22T11:15:00+00002023-01-22T11:15:00+0000Termux and rdflib on my Android phone.