LetterSampo: correspSearch
Linked Data Finland
★★★★★
LetterSampo: correspSearch Knowledge Graph includes separated in different subgraphs representing actors, letters, places, and other aspects and documentation of epistolary data. The data covers approx. 130 000 letters by 17 500 senders and receivers.
To test and demonstrate its usefulness, this Knowledge Graph is in use in the semantic portal LetterSampo: correspSearch, explained in more detail in the project page.
This dataset has been used for creating the LetterSampo: correspSearch semantic portal demonstrator by using the Sampo model and Sampo-UI framework.
This video shows how the applications works for Digital Humanities research.
To refer to this dataset you can use the publication: Eero Hyvönen, Petri Leskinen and Jouni Tuominen: LetterSampo – Historical Letters on the Semantic Web: A Framework and Its Application to Publishing and Using Epistolary Data of the Republic of Letters. 2021. Under review.
License
https://creativecommons.org/licenses/by-nc/4.0/deed.en
Licensor: TEI Special Interest Group on Correspondence, TELOTA - The Electronic Life Of The Academy, Semanttisen laskennan tutkimusryhmä (SeCo)
Detailed Dataset Contents
Actors in LetterSampo: correspSearch (URI: http://ldf.fi/corresp/actors)
( Browse data / Download )
The people and groups in the LetterSampo: correspSearch database. The data has roughly 17 000 actor resources.
Information included: name, alternative names, birth, death, occupations, gender, links to known letters and links to external databases, e.g., Wikidata and GND authority data. Some information, like person images, are extracted from these databases.
Source information:
Example resource URI: http://ldf.fi/corresp/actors/p2834085988003022755
Letters in LetterSampo: correspSearch (URI: http://ldf.fi/corresp/letters)
Licensor: TEI Special Interest Group on Correspondence, TELOTA - The Electronic Life Of The Academy, Semanttisen laskennan tutkimusryhmä (SeCo)
( Browse data / View in LetterSampo: correspSearch Online Portal / Download )The letters in the correspSearch database. The data has roughly 150 000 letter resources.
Information included: the senders and receivers, the dates and places of sending and receiving.
Source information:
Example resource URI: http://ldf.fi/corresp/letters/lc100006
Places (URI: http://ldf.fi/corresp/places)
( Browse data / View in LetterSampo Online Portal / Download )This graph contains names containing the most of places referenced in the actor and letter data. The data has roughly 4 000 place names.
Information included: label, alternative labels, coordinates (WGS84), broader place in hierarchy, and links to external databases, e.g., Wikidata and GND authority data. Some information, like coordinates, are extracted from these databases.
Example resource URI: http://ldf.fi/corresp/places/p6583658885597046170
Times (URI: http://ldf.fi/corresp/times)
( Browse data / Download )Timespans used in events. The timespans are instances of the class crm:E52_Time-Span and they follow the four-point time schema, e.g., each timespan contains the beginning and ending times of the start and end. The data in the graph is automacally constructed from the source data.
Example resource URI: http://ldf.fi/lssc/times/time_1538-01-01T00:00:00-1538-12-31T23:59:59-1538-01-01T00:00:00-1538-12-31T23:59:59
Data sources (URI: http://ldf.fi/corresp/sources)
Licensor: TEI Special Interest Group on Correspondence, TELOTA - The Electronic Life Of The Academy, Semanttisen laskennan tutkimusryhmä (SeCo)
( Browse data / Download )This graph contains the sources mentioned in the letter data. The data has roughly 240 source names.
Example resource URI: http://ldf.fi/lssc/sources/p1333507945121454760
Ties (URI: http://ldf.fi/corresp/ties)
( Browse data / Download )Ties, e.g., correspondences between the actors. Each tie resource includes links to the two related actors, and to all the letters in their correspondence. The data in the graph is automacally infered from the source data.
Example resource URI: http://ldf.fi/lssc/ties/p1471008086431148389-p2432459307823215744
Schemas Used
Following schemas (vocabularies) are used in the datasets above:
- Schema: http://d-nb.info/gnd/
- Schema: corresp: documentation, download
- Schema: http://purl.org/dc/elements/1.1/
- Schema: http://schema.org/
- Schema: http://www.cidoc-crm.org/cidoc-crm/
- Schema: http://www.w3.org/1999/02/22-rdf-syntax-ns#
- Schema: http://www.w3.org/2004/02/skos/core#
- Schema: http://www.w3.org/2008/05/skos-xl#
- Schema: http://www.wikidata.org/entity/
- Schema: http://xmlns.com/foaf/0.1/
- Schema: lssc: documentation, download
- Schema: letters: documentation, download
- Schema: ties: documentation, download
URI Data Services
Give the URI without brackets (<>) and without encoding.
Human Use Case 1: Viewing the RDF Description of a URI
Human Use Case 2: Linked Data Browsing Starting from a URI
Machine Use Case: Getting the RDF Description of a Resource
If the URI is dereferenceable, e.g., minted at the http://ldf.fi domain, just input the URI in a browser or use it in your favourite software. For example: URI=http://ldf.fi/finlex/laki/p35. If the URI is described in this LDF service you can use the URI template http://ldf.fi/SERVICE/data?uri=URI no matter whether the URI is dereferenceable or not: just input the URI in the form below:
SPARQL Endpoint: http://ldf.fi/corresp/sparql
Queries are represented using the URI template: http://ldf.fi/SERVICE/sparql?query=QUERY
Query Test Form
SPARQL Service Description
Get the description in RDF. (Notice: A service description is not available for all datasets - then empty description is returned. If you open the link in browser you are directed to a SPARQL query form instead of the RDF description. You can access the service description by making an HTTP query without an Accept header (e.g. curl).) LDF uses W3C SPARQL Service Description recommendation for this.Visualization
Visualizations for this dataset are available here.
A general Google Charts visualization is available here.
