ktk

Continuous Integration & Delivery (CI/CD) Unconference

Tuesday, February 5th, Berner Fachhochschule

We are happy to announce an unconference about the topic of Continuous Integration & Delivery (CI/CD). The event is organized by Swiss Alliance for Data-Intensive Services members Zazuko and Berner Fachhochschule. It will take place on Tuesday afternoon, February 5th 2019. We will start at 13:30 and stop latest at 18:00

What is an unconference?

An Unconference is an event where there is no fix schedule defined upfront, the event will be completely participant-driven. The final agenda is created collaboratively by the attendees at the beginning of the unconference. Anyone who wants to initiate a discussion on a topic can claim a time and a space. Some unconference sessions are led by the participant who suggested its topic; other unconference sessions (for example Open Space meetings) are basically open

ktk

DINAcon Linked Data Challenges

The goal of the 90 minutes is to get to know to SPARQL and create some useful queries from existing datasets. Your hosts are Pasquale di Donato, Matthias Mazenauer, Cristina Sarasua and Adrian Gschwend.

Other resources related to DINAcon

From our session supporters Cristina, Pasquale and Matthias

• Matthias: D3 Visualizations based on Swiss Linked Data
• Pasquale: Sample queries

ktk

SPARQL CONSTRUCT comparison

I had some days left on a physical machine we used for an EU FP7 research project so I took the chance to compare 3 triplestores (update: added some more based on comments here) I or my colleagues worked with in the past months. I do not want to imply anything with this test, it's just me playing around and having fun with RDF. If you have any comments, add it here.

Hardware

The test platform comprises a dedicated server, not a virtual machine, with the following specification:

• 2 x Intel Xeon E5 2620V2, 2 x (6 x 2.10 GHz) (appears as 24 cores in htop)
• 128 GB buffered ECC RAM

ktk

#!/bin/sh
docker run -p 3030:3030 -e ADMIN_PASSWORD=MyFancyPassword -d stain/jena-fuseki
sleep 20
curl -u admin:MyFancyPassword --data "dbType=tdb&dbName=mydbname"  http://localhost:3030/$/datasets
curl -X PUT  -u admin:MyFancyPassword -d @my-data-as-ntriples.nt -H "Content-Type: application/n-triples" http://admin:MyFancyPassword@localhost:3030/mydbname/data

ktk

/* global _ */
/*
 * Complex scripted dashboard
 * This script generates a dashboard object that Grafana can load. It also takes a number of user
 * supplied URL parameters (int ARGS variable)
 *
 * Global accessable variables
 * window, document, $, jQuery, ARGS, moment
 *
 * Return a dashboard object, or a function

ktk

Ceci n'est pas une pipe

I got asked on Twitter on how I would use Content-Location with Linked Data, see https://twitter.com/elfpavlik/status/605693139119153153.

I'm referring to my remark from the Trifid-LD Readme:

Trifid-LD does not care about HTTPRange-14 and neither should you. We consider the extra 303 redirect round-trip a waste of precious response time. You get back what you asked for in content-negotiation.

As you can see later in the text we did think about the Content-Location header but didn't implement it so far. The reason is pretty simple: While I understand the problem (up to some point at least) from a meta-level I fail to see where this is an issue in the real world. I'm just an engineer and maybe I'm oversimplifying things here but as long as no one gives me a clear explanation on why this will lead to real world problems, I will continue to ignore HTTPR

ktk

2001 silly gunzTarPerm modified mode [ 'HISTORY.md', 438, 420 ]
2002 silly gunzTarPerm extractEntry test/dummy_rails/app/helpers/application_helper.rb
2003 silly gunzTarPerm modified mode [ 'test/dummy_rails/app/helpers/application_helper.rb',
2003 silly gunzTarPerm   416,
2003 silly gunzTarPerm   420 ]
2004 silly gunzTarPerm extractEntry test/dummy_rails/app/views/layouts/application.html.erb
2005 silly gunzTarPerm modified mode [ 'test/dummy_rails/app/views/layouts/application.html.erb',
2005 silly gunzTarPerm   416,
2005 silly gunzTarPerm   420 ]
2006 silly gunzTarPerm extractEntry demo/spanaffectswrapping_shim.html

ktk

@prefix rr:     <http://www.w3.org/ns/r2rml#>.
@prefix rml:    <http://semweb.mmlab.be/ns/rml#> .
@prefix ql:     <http://semweb.mmlab.be/ns/ql#> .
@prefix rdfs:   <http://www.w3.org/2000/01/rdf-schema#>.
@prefix oslo:   <http://purl.org/oslo/ns/localgov#>.
@prefix adms:   <http://www.w3.org/ns/adms#>.
@prefix skos:   <http://www.w3.org/2004/02/skos/core#> .
@prefix vcard:  <http://www.w3.org/2006/vcard/ns#> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix adms:    <http://www.w3.org/ns/adms#>.

ktk

<?xml version="1.0" encoding="UTF-8"?>
<eCH-0071:nomenclature xmlns:eCH-0071="http://www.ech.ch/xmlns/eCH-0071/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ech.ch/xmlns/eCH-0071/1 http://www.ech.ch/xmlns/eCH-0071/1/eCH-0071-1-1.xsd">
  <validFrom>2015-01-01</validFrom>
<cantons>
  <canton>
    <cantonId>1</cantonId>
    <cantonAbbreviation>ZH</cantonAbbreviation>
    <cantonLongName>Zürich</cantonLongName>
    <cantonDateOfChange>1960-01-01</cantonDateOfChange>
  </canton>

ktk

Keybase proof

I hereby claim:

• I am ktk on github.
• I am ktk (https://keybase.io/ktk) on keybase.
• I have a public key whose fingerprint is 7402 391F 6D81 ED47 A0E8 8758 5EAD 6AF9 8CA2 5D92

To claim this, I am signing this object: