3e:null 3f:["$","title",null,{"children":"About RDF Annotation (4) | mpohorilak | Observable"}] 45:T472,## filters When combined with a revision interval, the attributes can select statements from arbitrary revisions. For example, given the interval `*--*`, the filter applies to the addressed revision attributes of all matched statements. ``` prefix dydra: prefix dydraOp: prefix time: prefix : select ?subject ?predicate ?object ?predecessorDeletedOrdinal ?addedOrdinal ?deletedOrdinal ?successorAddedOrdinal where { # dydra:met-by is the end of previous visibility # dydra:starts is the current session visibility with modified content # dydra:finishes is the end of current version visibility # dydra:meets is the start of the next version # the added ordinal is 0, then the statements were added for the first time ?subject ?predicate ?object {| dydra:met-by ?predecessorDeletedOrdinal; dydra:starts ?addedOrdinal; dydra:finishes ?deletedOrdinal; dydra:meets ?successorAddedOrdinal |}. filter (?deletedOrdinal = dydraOp:repository-end-ordinal()) } ``` 46:T44c,footnotes = html`

Footnotes

[5] The ontology neglects to include all of the terms which figure in the temporal extension library interface.

[6] "SPARQL-star : AnnotationPattern"

`47:T514,function generateParseExample(description, query, comment = null) { var p = document.createElement('div'); p.style.borderTop = "solid 1px black"; var span1 = document.createElement('span'); span1.innerText = description; span1.style.fontWeight = "bold"; p.appendChild(span1); var pre1 = document.createElement('pre'); pre1.innerText = query; p.appendChild(pre1); var div1 = document.createElement("div"); var span2 = document.createElement('span'); span2.innerText = "yields as SSE"; div1.appendChild(span2); var pre2 = document.createElement('pre'); pre2.innerText = ""; pre2.style.border = "solid 1px grey"; getQuerySSE(query).then(function(text) { pre2.innerText = text; }); div1.appendChild(pre2); p.appendChild(div1); var div2 = document.createElement("div"); var span3 = document.createElement('span'); span3.innerText = "yields as SPARQL algebra"; div2.appendChild(span3); var pre3 = document.createElement('pre'); pre3.innerText = ""; pre3.style.border = "solid 1px grey"; getQueryAlgebra(query).then(function(text) { pre3.innerText = text; }); div2.appendChild(pre3); p.appendChild(div2); if (comment) { var div = document.createElement('div'); div.innerText = comment; p.appendChild(div); } return p; }48:[{"id":"5416e921a75b1701f029cb06d7a9929848596ab8a21403f86f0ff21385e31fbfdaef9c1908517ed203d39ee6a37b84634434909516b51425c0dd407d007a02b3","href":"https://static.observableusercontent.com/files/5416e921a75b1701f029cb06d7a9929848596ab8a21403f86f0ff21385e31fbfdaef9c1908517ed203d39ee6a37b84634434909516b51425c0dd407d007a02b3","name":"us-county-unemployment.csv","type":"text/csv","lastModified":1683835964043.075,"size":109819},{"id":"e34d00a1441938da12b88603d3f2f6012369d8f1bec25ed9fb6db16c0d16d5ea4861bd6066275b8de9cc4ea3db735741008c4245e8142cd10c13ffa4c9741873","href":"https://static.observableusercontent.com/files/e34d00a1441938da12b88603d3f2f6012369d8f1bec25ed9fb6db16c0d16d5ea4861bd6066275b8de9cc4ea3db735741008c4245e8142cd10c13ffa4c9741873","name":"us-counties-10m.json","type":"application/json","lastModified":1683835967830.892,"size":842143}] 43:{"id":"baba0cdb4450682c","slug":null,"title":"About RDF Annotation (4)","thumbnail":"b0dc3982507926f800f04796585955aa2d9584d22e906d6461f6dc89829d7cda","access_level":"public","create_time":"$D2023-05-10T14:25:46.276Z","update_time":"$D2023-05-11T20:12:22.372Z","view_time":null,"first_public_time":"$D2023-05-10T14:25:46.276Z","has_unpublished_edits":null,"fork":{"id":"098694ad37dab100","slug":"about-rdf-annotation-4","title":"About RDF Annotation (4)","owner":{"id":"b452fd69977f5701","login":"lomoramic","name":"James Anderson"}},"stars":0,"starred":false,"owner":{"type":"team","id":"f8c7987bb6cd7e33","login":"mpohorilak","name":"","avatar_url":"https://avatars-next.observableusercontent.com/3e379e076f4c240c6667289c6416e5ad6bb3497f1fb5fa5cd60e273e0981308a","tier":"starter_2024","bio":"","following":false},"version":191,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"bd4ccab4fb6453d4","login":"mpohorilak","name":"","avatar_url":"https://avatars-next.observableusercontent.com/3e379e076f4c240c6667289c6416e5ad6bb3497f1fb5fa5cd60e273e0981308a","tier":null,"bio":"","following":false}],"members":[{"type":"individual","id":"bd4ccab4fb6453d4","login":"mpohorilak","name":"","avatar_url":"https://avatars-next.observableusercontent.com/3e379e076f4c240c6667289c6416e5ad6bb3497f1fb5fa5cd60e273e0981308a","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"About RDF Annotation (4)","cells":[{"id":0,"value":"md`# About RDF Annotation (4)\n## for Internal Attributes`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"html`\n

\n\n\n

${catalog}

\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":31,"value":"Plot.plot({\n projection: \"albers-usa\",\n color: {\n type: \"quantile\",\n n: 9,\n scheme: \"blues\",\n label: \"Unemployment (%)\",\n legend: true\n },\n marks: [\n Plot.geo(counties, {\n fill: (d) => d.properties.unemployment,\n title: (d) => `${d.properties.name}\\n${d.properties.unemployment}%`\n })\n ]\n})","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":188,"value":"us = FileAttachment(\"us-counties-10m.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":190,"value":"counties = {\n const counties = topojson.feature(us, us.objects.counties);\n const rate = await FileAttachment(\"us-county-unemployment.csv\").csv();\n const map = new Map(rate.map((d) => [d.id, +d.rate]));\n counties.features.forEach((g) => {\n g.properties.unemployment = map.get(g.id);\n });\n return counties.features;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":55,"value":"## internal version attributes\n\nAs an idiomatic extension to Dydra support for Allen Intervals ^[3][4],\nthe query processor recognizes several analogues to the terms from the Strabon library\n^[5]\nto indicate the attributes of the transactions associated with a version:\n- `` : the transaction which removed the statement\n- `` : the transaction which subsequently added a statement\n- ``, `` : the transaction which removed the previous version of a statement\n- `` : the transaction which inserted the statement to begin the version\nwhere these appear in a statement's annotation,\nthey bind a variable to the respective attribute.\n\nNote that the `meets` and `metBy` attributes imply a looser relationship that the strbon analogues, in that they do not require direct adjacency.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"## example queries\n\nIn the examples which follow, version attributes are associated with individual statements in the manner proposed for RDF-star\n^[6].\nThe two variants, `[`...`]` and `{|`...`|}`, are equivalent.\n

[nb. this content is generated live from a dev service. should there be issues, please drop us a note.

","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":75,"value":"generateParseExample(\"simple annotation\", `\nprefix dydra: \nprefix : \n\nselect ?s ?id\nwhere {\n # dydra:met-by is the end of previous visibility\n # dydra:starts is the current visibility with modified content\n # the added ordinal is 0, then the statements were added for the first time\n ?s a :Product [ dydra:starts ?addedOrdinal;\n dydra:met-by ?deletedOrdinal ]\n filter ( ?deletedOrdinal = ?addedOrdinal )\n}`)\n","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":108,"value":"generateParseExample(\"multiple annotations\", `\nprefix dydra: \nprefix : \n\nselect ?s ?id\nwhere {\n # dydra:met-by is the end of previous visibility\n # dydra:starts is the current visibility with modified content\n # the added ordinal is 0, then the statements were added for the first time\n ?s a [ :p1 'v1' {| dydra:starts ?p1_added;\n dydra:metBy ?p1_deleted |};\n :p2 'v2' ;\n rdf:object :Product ] {| dydra:starts ?s_added;\n dydra:metBy ?s_deleted |}\n}`)\n","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":154,"value":"$45","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":170,"value":"The `count`, `min` and `max` attributes offer access to the statement revision statistics.\n\n```\nselect (min(?count) as ?countMin)\n (round(avg(?count)) as ?countAvg)\n (max(?count) as ?countMax)\n (min(?min) as ?minMin)\n (round(avg(?min)) as ?minAvg)\n (max(?min) as ?minMax)\n (min(?max) as ?maxMin)\n (round(avg(?max)) as ?maxAvg)\n (max(?max) as ?maxMax)\nfrom \nwhere {\n ?s ?p ?o {|\n ?count ;\n ?min ;\n ?max\n |}\n}\n```\n","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":37,"value":"$46","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"---","pinned":true,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":80,"value":"$47","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":2,"value":"import {catalog} from \"@mpohorilak/blog-catalog\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":85,"value":"function getQuerySSE(expression) {\n return ( sparqlPost(expression, {\"Accept\": \"application/sparql-query+sse\", \"Content-Type\": \"application/sparql-query\"}) );\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":104,"value":"function getQueryAlgebra(expression) {\n return ( sparqlPost(expression, {\"Accept\": \"application/sparql-query-algebra\", \"Content-Type\": \"application/sparql-query\"}) );\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":83,"value":"sparqlPost = resourceAPI(\"https://dydra.com/system/null\", \"POST\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":81,"value":"import { resourceAPI } from \"@datagenous/resource-protocol-library\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W48","stdlib":"1"}} 44:"$43:body"