README.md

In news-r/spotlight: Wrapper for Dbpedia Spotlight API

spotlight

R wrapper to the DBpedia Spotlight API. All official documentation is online.

It is a tool for automatically annotating mentions of DBpedia resources in text, providing a solution for linking unstructured information sources to the Linked Open Data cloud through DBpedia. - DBpedia Spotlight

Global options are set with spot_set_opts. If you want to extensively use dbpedia you are encouraged to deploy spotlight-docker on your own server then point to it with the base_url argument in spot_set_opts.

Installation

You can install spotlight from github with:

# install.packages("devtools")
devtools::install_github("news-r/spotlight")

Examples

library(spotlight)

# Data to extract entities from 
text = c(
  "Donald Trump is probably in Washington DC.",
  "szzza dasdazsd azzsd daawq", # garbage
  "" # empty document
)

# remove empty documents
text <- spot_filter(text)

# Annotate
places <- spot_annotate(text, types = "DBpedia:Place")
#> Annotating 2 documents.
#> 100% annotating document: 2 [====================================================================] eta: 0s

knitr::kable(places)

| text | confidence | support | types | sparql | policy | resource_URI | resource_support | resource_types | resource_surfaceForm | resource_offset | resource_similarityScore | resource_percentageOfSecondRank | | :----------------------------------------: | ---------: | ------: | :-----------: | :----- | :-------- | :----------------------------------------------- | ----------------: | :--------------------------------------------------------------------------------------------------------------------------------------------------------- | :-------------------- | ---------------: | ------------------------: | -------------------------------: | | Donald Trump is probably in Washington DC. | 0.5 | 0 | DBpedia:Place | | whitelist | http://dbpedia.org/resource/Washington_(state) | 43066 | Wikidata:Q3455524,Schema:Place,Schema:AdministrativeArea,DBpedia:Region,DBpedia:PopulatedPlace,DBpedia:Place,DBpedia:Location,DBpedia:AdministrativeRegion | Washington | 28 | 0.5234317 | 0.4408709 |

news-r/spotlight documentation built on Feb. 29, 2020, 5:11 a.m.