Articles

This is a personal note on the commands for restarting Virtuoso when it stops. There may be some errors, but I hope it serves as a useful reference. Checking virtuoso-t which virtuoso-t > /usr/local/bin/virtuoso-t Checking the Location of virtuoso.ini sudo find / -name virtuoso.ini > ... > /usr/local/var/lib/virtuoso/db/virtuoso.ini > ... Deleting the lck File and Starting sudo rm -rf /usr/local/var/lib/virtuoso/db/virtuoso.lck sudo /usr/local/bin/virtuoso-t +configfile /usr/local/var/lib/virtuoso/db/virtuoso.ini

Overview The Cultural Japan RDF store contains information about exhibitions. A list can be retrieved using the following query, which specifies type:展覧会 (Exhibition) for rdf:type. PREFIX type: <https://jpsearch.go.jp/term/type/> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> select distinct * where { ?s rdf:type type:展覧会; rdfs:label ?label . } https://ld.cultural.jp/snorql/?query=select+distinct+*+where+{ %3Fs+rdf%3Atype+type%3A展覧会%3B +++++++rdfs%3Alabel+%3Flabel+.+ } ++ This article introduces an example of how to utilize this exhibition information. List of Exhibitions Each exhibition has values such as jps:temporal and jps:spatial (which may have multiple values). https://ld.cultural.jp/data/apmoa-exhib-2021-soga The following query can be used to retrieve a list including exhibition metadata. ...

Overview I developed a Mirador 3 plugin that performs layer slideshows. https://youtu.be/r1ShHGqCs24 As described in the following article, I previously achieved this through customization of Mirador 2. The article below attempts a IIIF implementation of “Okiezu” (illustrated maps). https://nakamura196.hatenablog.com/entry/2020/08/14/073700 This time, I attempted to develop it as a Mirador 3 plugin. Repository https://github.com/nakamura196/mirador-layer-slideshow-plugin Demo Site https://nakamura196.github.io/mirador-layer-slideshow-plugin/ Summary There is much room for improvement, but I hope this serves as a useful reference. ...

Overview I am sharing the results of querying GPT-4 about ALTO (Analyzed Layout and Text Object) XML. https://www.loc.gov/standards/alto/ Required Elements ALTO (Analyzed Layout and Text Object) XML is an XML schema for representing OCR-generated text and its layout. Its structure is very flexible, with many elements and attributes, but the required elements are limited. The simplest form of ALTO XML has the following hierarchical structure: <alto>: The root element. It must have @xmlns and @xmlns:xsi attributes indicating the version of the ALTO XML schema. It must also have two child elements: <Description> and <Layout>. ...

I wanted to watch URL query changes with watch in Nuxt3, so I wrote the following code, but the watch did not work when the URL query changed. <script lang="ts" setup> const route = useRoute() watch( route, () => { console.log(route['query']) } ) </script> So I referenced the following article. https://qiita.com/YumaInaura/items/9c86ed91d56402e816db By changing the code to the following, the watch worked in response to URL query changes. <script lang="ts" setup> const route = useRoute() watch( () => route.query, () => { console.log(route['query']) } ) </script> There are still many things I don’t fully understand, but I hope this is helpful to others. ...

Overview I created a sample repository using CETEIcean and Nuxt 3. https://github.com/TEIC/CETEIcean I referenced the following issue. https://github.com/TEIC/CETEIcean/issues/27 The script introduced there did not work with CETEIcean v1.8.0, so I created a minimal repository that works with CETEIcean v1.8.0 and Nuxt 3. Demo Page https://nakamura196.github.io/ceteicean-nuxt3 Source Code https://github.com/nakamura196/ceteicean-nuxt3 Main File https://github.com/nakamura196/ceteicean-nuxt3/blob/main/app.vue Summary I hope this serves as a useful reference. I would also like to express my gratitude to those who developed CETEIcean. ...

Here are my notes on how to check how fields are indexed in Apache Solr. Using the Schema API You can use Solr’s Schema API to check how a specific field is defined. Below is an example request for a specific field. http://localhost:8983/solr/{core_name}/schema/fields/{field_name} By accessing this URL from a browser or sending a GET request using curl or similar tools, information about the specific field is returned in JSON format. This includes information about how the field is indexed. ...

Overview This article introduces “Scripto,” an Omeka S module that enables transcription and translation of media (images, etc.) registered in Omeka S. https://omeka.org/s/modules/Scripto/ Installation The installation of this module itself is the same as for other standard modules. However, in addition to installing this module, you need to set up MediaWiki. If your environment already runs Omeka S, it should have the necessary components for setting up MediaWiki. Download and set up MediaWiki using commands like the following: ...

Overview I tried the IiifPresentation module that adds IIIF Presentation API support, so here are my notes. https://omeka.org/s/modules/IiifPresentation/ As far as I could tell from a brief trial, there did not seem to be a significant difference from the features provided by the IIIF Server module below. https://omeka.org/s/modules/IiifServer/ One difference is that this module was developed by the Omeka Team, and it has the advantage of being usable without detailed configuration. ...

Overview As of 2023/07/20, this module appears to still be in beta, but I had the opportunity to try out “Omeka-S-module-HistoryLog,” a module for recording change history in Omeka S. Here are my notes. https://github.com/Daniel-KM/Omeka-S-module-HistoryLog Installation As noted in the documentation, you may need to install the Generic module beforehand. https://github.com/Daniel-KM/Omeka-S-module-HistoryLog#installation Otherwise, the installation procedure is the same as for standard modules. After installation, the module will appear in the module list as shown below. ...

Overview I updated Mirador to 2.7 in the Omeka Classic IIIF Toolkit. You can check the source code on the following page. https://github.com/nakamura196/IiifItems You can also download the zip file from the following URL. https://github.com/nakamura196/IiifItems/releases/download/1.1.1/IiifItems-1.1.1.zip What This Enables By using Mirador 2.7, it becomes possible to display images in the viewer even if they do not support the IIIF Image API. This makes it possible to add and manage annotations using Mirador for publicly available images as well. ...

Overview This article explains how to batch register data to Omeka Classic IIIF Toolkit. For setting up Omeka Classic IIIF Toolkit, please refer to the following: This also builds on the content of the following article, making it easier to use by accepting Excel data as input. Preparing the Excel File Prepare an Excel file like the following: https://github.com/nakamura196/000_tools/blob/main/data/sample.xlsx Create three sheets: “collection,” “item,” and “annotation.” collection manifest_uri https://d1fasenpql7fi9.cloudfront.net/v1/manifest/3437686.json ...

Overview I created a plugin for Mirador 3 that copies a window. Note that this functionality is already provided by the following plugin. https://github.com/ProjectMirador/mirador-plugin-demos Therefore, this plugin was created to learn the plugin development process. I hope this plugin serves as a useful reference from that perspective. Here is a screenshot. The source code is available here. https://github.com/nakamura196/mirador-copy-window-plugin The demo site is available here. https://nakamura196.github.io/mirador-copy-window-plugin/ Development Notes For developing this plugin, I first cloned the following repository and made modifications to it. ...

Overview I tried QuickStatements on wikibase.cloud, so here are my notes. I referred to the following article. https://qiita.com/higa4/items/10affb47215def42d8e0 Adding Data Following the article above, I imported a CSV file. However, the following error occurred. The cause was that the required properties were not registered on the independently set up wikibase instance. Property [[Property:P1814|P1814]] not found It turned out that properties (especially those with the same IDs as wikidata) need to be registered in advance using WikibaseSync or similar tools. ...

Overview I had the opportunity to try out the following WikibaseSync, so this is a personal note for future reference. https://github.com/the-qa-company/WikibaseSync I learned about this tool from the following paper. https://doi.org/10.11517/jsaisigtwo.2022.SWO-056_04 Installation Install the source code and related libraries. !get clone https://github.com/the-qa-company/WikibaseSync cd WikibaseSync !pip install -r requirements.txt Creating a Bot Account Access the Wikibase prepared in advance, and click “Bot passwords” from “Special pages”. On the following screen, enter the “Bot name”. ...

Overview I had the opportunity to use the Wikibase API from a Python client, so this is a memo of the process. I used the following library. https://wikibase-api.readthedocs.io/en/latest/index.html Installation Install with the following: !pip install wikibase-api Read This time, we will work with the following Wikibase instance. https://nakamura196.wikibase.cloud/ from wikibase_api import Wikibase api_url = "https://nakamura196.wikibase.cloud/w/api.php" wb = Wikibase(api_url=api_url) r = wb.entity.get("Q1") print(r) With the above, we were able to retrieve information about Q1. Create Obtaining Authentication Credentials When creating items, authentication needed to be performed using one of the following methods: ...

Overview I had an opportunity to try Dataverse, so here are my notes. I used the following demo environment. https://demo.dataverse.org/ Creating an Account Create an account from Sign Up. Creating a Dataverse Let’s try creating a Dataverse. I created the following Dataverse. https://demo.dataverse.org/dataverse/nakamura196 Creating a Dataset Create a dataset from Add Data. The following is the registration screen. The following is the registration result screen. ...

Overview I had an opportunity to try wikibase.cloud, so here are my notes. Documentation The manual was available at the following link. https://www.mediawiki.org/wiki/Wikibase/Wikibase.cloud Creating an Instance Initially, I tried setting up a custom domain, but it didn’t work. I’ll just leave the record below. From that point on, I gave up on the custom domain and used nakamura196.wikibase.cloud. Failure It appeared that a custom domain could be assigned, so I entered wikibase.aws.ldas.jp. ...

Overview I had the opportunity to set up health checks for Virtuoso running on Amazon EC2, so this is a memo of the process. Specifically, when Virtuoso (e.g., https://xxx.zzz/sparql) starts returning errors due to some issue, the details are sent via email notification. Method The following article introduces how to set up a Virtuoso RDF store on Amazon EC2. The above setup uses an ELB. Only one change needs to be made from the above article. The Health check path was set to /, but this should be changed to the path to the SPARQL endpoint (e.g., /sparql). ...

When using onBackdropClick in MUI’s Dialog component, the following warning occurred. Warning: Failed prop type: The prop `onBackdropClick` of `ForwardRef(Dialog)` is deprecated. Use the onClose prop with the `reason` argument to handle the `backdropClick` events. The warning message is about the deprecated prop onBackdropClick of the Dialog component. This means that this prop is being used somewhere in your code but is no longer supported or recommended. The warning suggests using the onClose prop instead. ...