[HN Gopher] Protege: A free, open-source ontology editor for bui... ___________________________________________________________________ Protege: A free, open-source ontology editor for building intelligent systems Author : stefankuehnel Score : 40 points Date : 2023-11-10 17:29 UTC (5 hours ago) (HTM) web link (protege.stanford.edu) (TXT) w3m dump (protege.stanford.edu) | joshuanapoli wrote: | What would one use an ontology editor for? | riku_iki wrote: | for editing ontology.. | wbazant wrote: | Improving an ontology over time! A use case I've seen is to | maintain a consistent tree-like display across different pages | of a science website, microbiomedb.org. | | You'd load up an ontology as an .xml, use the UI to browse the | nodes and a hierarchy you already have, decide how to handle | the new thing you want to achive and add a new leaf somewhere | or rejiggle the tree somehow, and at the end you save the | changed .xml. | the-alchemist wrote: | There's a lot of Protege tutorials out there, but here's what | an ontology (in the OWL sense of the word, let's you do). The | "pizza ontology" is the Hello World of the ontology world. | | * imagine a graph of things you wanna organize ("model"), say | world religions, or the plant and animal kingdom * you can tell | the system that anything that's a plant can never be an animal. | or viruses can't be bacteria * or lions and zebras are both | mammals * you can define what mammals are, vertebra, heart, | brain, etc. | | The interesting part is ontology _validation_ or querying. | | Is it internally consistent? Maybe you specified viruses and | bacteria and said they are never the same thing, but the way | you modeled it, they are identical! Hmm, you'll have to update | your definition of bacteria, or viruses, or both. | | Next, you try to put fungi in the system, but there's an error | because fungi do not belong to the plant or animal kingdom: | they are their own thing. | | So this is a fairly simplistic use case, but scale this up to | hundreds if not thousands of entities and you can start to see | the value. | | Imagine sticking the human genome in there, and which drugs act | on which chromosomes, etc. | | It's a niche, for sure, if you need something like reasoning | it's the way to go. ___________________________________________________________________ (page generated 2023-11-10 23:00 UTC)