Jindřich Mynarz jindrichmynarz

Linked data engineer

jindrichmynarz / query.ttl

Created June 28, 2016 06:52

Generating SPARQL: SPIN RDF

	@prefix : <http://example.com/> .
	@prefix dbo: <http://dbpedia.org/ontology/> .
	@prefix foaf: <http://xmlns.com/foaf/0.1/> .
	@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
	@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
	@prefix sp: <http://spinrdf.org/sp#> .

	_:person sp:varName "person" .
	_:name sp:varName "_name" .
	_:birthDate sp:varName "_birthDate" .

jindrichmynarz / query.sse

Created June 28, 2016 06:51

Generating SPARQL: SPARQL S-Expressions

	(prefix ((dbo: <http://dbpedia.org/ontology/>)
	(foaf: <http://xmlns.com/foaf/0.1/>))
	(project (?person ?name ?birthDate ?deathDate)
	(extend ((?deathDate ?.2))
	(extend ((?birthDate ?.1))
	(extend ((?name ?.0))
	(group (?person) ((?.0 (sample ?_name)) (?.1 (sample ?_birthDate)) (?.2 (sample ?_deathDate)))
	(leftjoin
	(join
	(slice 0 10000

jindrichmynarz / query.rq

Created June 28, 2016 06:50

Generating SPARQL: example query

	PREFIX dbo: <http://dbpedia.org/ontology/>
	PREFIX foaf: <http://xmlns.com/foaf/0.1/>

	SELECT ?person
	(SAMPLE(?_name) AS ?name)
	(SAMPLE(?_birthDate) AS ?birthDate)
	(SAMPLE(?_deathDate) AS ?deathDate)
	WHERE {
	{
	SELECT ?person

jindrichmynarz / query.mustache

Created June 28, 2016 06:47

Generating SPARQL: Mustache template

	PREFIX foaf: <http://xmlns.com/foaf/0.1/>

	SELECT ?person
	{{#properties}}
	(SAMPLE(?_{{varname}}) AS ?{{varname}})
	{{/properties}}
	WHERE {
	{
	SELECT ?person
	WHERE {

jindrichmynarz / time_sparql.sh

Created June 24, 2016 20:48

Compute average response time for given SPARQL query and endpoint

	#!/bin/bash
	#
	# Compute average response time for given SPARQL query and endpoint
	#
	# Note: For proper benchmarking use SPARQL Query Benchmarker instead.
	# <https://sourceforge.net/p/sparql-query-bm/wiki/Introduction/>

	set -e

	die () {

jindrichmynarz / dump_one_graph_nt.sql

Created February 25, 2016 10:41

OpenLink Virtuoso procedure for dumping a graph to N-Triples

	CREATE PROCEDURE dump_one_graph_nt
	( IN srcgraph VARCHAR
	, IN out_file VARCHAR
	, IN file_length_limit INTEGER := 1000000000
	)
	{
	DECLARE file_name VARCHAR
	; DECLARE env
	, ses ANY
	; DECLARE ses_len

jindrichmynarz / wd_prime_ministers.rq

Created January 21, 2016 11:04

Prime ministers from Wikidata

	PREFIX bd: <http://www.bigdata.com/rdf#>
	PREFIX p: <http://www.wikidata.org/prop/>
	PREFIX q: <http://www.wikidata.org/prop/qualifier/>
	PREFIX v: <http://www.wikidata.org/prop/statement/>
	PREFIX wd: <http://www.wikidata.org/entity/>
	PREFIX wikibase: <http://wikiba.se/ontology#>

	SELECT DISTINCT ?countryLabel ?primeMinisterLabel
	WHERE {
	?country p:P31 ?countryStatement .

jindrichmynarz / dub_techno_in_sonic_pi.rb

Created December 8, 2015 19:11

Dub techno in Sonic Pi

jindrichmynarz / core_test.clj

Created November 12, 2015 22:31

Example of generative testing of a SOAP API in Clojure

	(ns soap-test.core-test
	(:require [clojure.test :refer :all]
	[clojure.test.check.generators :as gen]
	[clojure.test.check.properties :as prop]
	[clojure.test.check.clojure-test :refer [defspec]]
	[clj-soap.core :as soap :refer [obj->soap-str]]))

	; Boilerplace method required by the clj-soap library
	(defmethod obj->soap-str :currency [obj argtype] (str obj))

jindrichmynarz / leaflet_with_krovak.js

Last active August 29, 2015 14:23

Leaflet.js using Křovák

	var APP = {
	// Definition of the Křovák projection
	// EPSG:102067 instead of EPSG:5514 needs to be used with IPR's WMS.
	crs: new L.Proj.CRS("EPSG:102067",
	"+proj=krovak +lat_0=49.5 +lon_0=24.83333333333333 "
	+ "+alpha=30.28813972222222 +k=0.9999 +x_0=0 +y_0=0 "
	+ "+ellps=bessel +towgs84=589,76,480,0,0,0,0 +units=m "
	+ "+no_defs",
	{origin: [-951499.37, -930499.37],
	// The difficult part