Integrating NLP with Linked Data using NIF format
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The document summarizes a tutorial on integrating natural language processing (NLP) with linked data and the Resource Description Framework (RDF) using the NLP Interchange Format (NIF). It introduces NIF and provides examples of using NLP wrappers and tools like Snowball Stemmer, OpenNLP, and Twinkle to annotate text, query annotated data, and query the Brown Corpus using SPARQL. The goal is to help attendees learn hands-on how to represent NLP objects and relations in RDF using the NIF format.
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Integrating NLP with Linked Data using NIF format
- 1. Integrating NLP with Linked Data and RDF: the NIF format (hands on) Ciro Baron Neto Ph.D student at University of Leipzig Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 1
- 2. Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 2 Overview • Github NLP2RDF web page overview and NIF Online demos (Dashboard, Combinator...) • Examples –Example 1: How to annotate string • using Snowball Steamer and OpenNLP –Example 2: • Query generated NIF data and Querying Brown Corpus
- 3. NLP2RDF GitHub Website • https://github.com/NLP2RDF/ • /home/ciro/websites/github/github.com/NLP2RDF/index.html Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 3
- 4. dashboard.nlp2rdf.aksw.org Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 4
- 5. Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 5 nlp2rdf.aksw.org
- 6. Example 1: Snowball Stemmer Wrapper Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 6
- 7. Snowball Stemmer Wrapper • Stemming algorithm is a process for removing suffixes from words. –CONNECT Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 7 • CONNECTED • CONNECTION • CONNECTING • CONNECTIONS
- 8. Snowball Stemmer Wrapper • 1. Open the USB stick folder • 2. Go to “NIF_tutorial_hands_on_jars” folder • 3. Open the “instructions.txt” file in a text editor • 4. Open a terminal • 5. Go to the “jar” folder Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 8
- 9. Snowball Stemmer Wrapper • Copy the second command of the instructions.txt “java -jar snowball.jar -f text -i 'My favorite actress is Natalie Portman.'“ • -f is used to define the format • -i is used to define the input • Paste in the terminal Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 9
- 10. Snowball Stemmer Wrapper Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 10
- 11. Snowball Stemmer Wrapper Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 11
- 12. Snowball Stemmer Wrapper Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 12 NIF Standard Annotations NIF Offset
- 13. Snowball Stemmer Wrapper Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 13 NIF Standard Annotations Snowball Stem NIF Offset
- 14. OpenNLP Wrapper • Back to the terminal and use the first command of the instructions.txt java -jar opennlp.jar -f text -i 'My favorite actress is Natalie Portman.' -modelFolder ../model/ • The -modelFolder parameter set the folder that contains the POS tagging OpenNLP trained models and tokenization. • You might add the parameter “--outfile myAnnotatedFile.ttl“ to store the triples in a file. Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 14
- 15. Example 2: Query Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 15
- 16. Querying with Twinkle • Open the “/twinkle/example” folder • Open the NIF_query_example file in a text editor and copy the query • Open the “/twinle” folder and run the command: java -jar twinkle.jar Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 16
- 17. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 17
- 18. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 18
- 19. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 19
- 20. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 20
- 21. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 21
- 22. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 22
- 23. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 23
- 24. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 24
- 25. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 25
- 26. Querying Brown Corpus Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 26
- 27. Exercise 3: Querying your own NIF annotated string Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 27
- 28. Querying your own NIF annotated string 1. Annotate your string using one of the wrappers 2. Save your annotated sentence to a file (using “--outfile”) 3. Open Twinkle 4. Query your string using Twinkle Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 28
- 29. • Query your annotated string: – nif:Context – nif:Sentence – nif:anchorOf – nif:oliaCategory – nif:oliaLink … or practice with Brown Corpus! Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 29
- 30. Thank you! http://site.nlp2rdf.org/ NLP2RDF Google+ Community Building the Multilingual Web of Data – ISWC 10/20/14 tutorial 30