Natural Language Processing

Coreference Resolution Using spaCy

Coreference Resolution Using spaCy

According to Stanford NLP Group, “Coreference resolution is the task of finding all expressions that refer to the same entity in a text”.  You can also read this Wikipedia page. For example, in the sentence “Tom dropped the glass jar by accident and broke it”, what does “it” refer to? I am sure you will […]

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Generating Poetry Using iLangGen

Written by on January 27, 2019 in LISP, Natural Language Processing, Programming with 0 Comments
Generating Poetry Using iLangGen

In an earlier article, I wrote about using iLangGen to generate natural language text. iLangGen is a powerful text generation library that I have been working on over the years. Today, I would like to show how we can use that library to generate “poetry“. Be warned, however, that the generated poem is devoid of […]

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Named Entity Recognition (NER) with OpenNLP

Written by on January 20, 2019 in Natural Language Processing, Programming with 0 Comments
Named Entity Recognition (NER) with OpenNLP

In the earlier two articles, we looked at Sentence Parsing and Chunking as supported in OpenNLP. In today’s article, let us explore Named Entity Recognition, also known as NER. NER is a technique to identify special categories of noun phrases such as people, places, companies, money, etc., present in the given text. This is widely used as […]

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Chunking in OpenNLP

Written by on January 13, 2019 in Natural Language Processing, Programming with 0 Comments
Chunking in OpenNLP

In my previous post, I showed how to parse sentences using OpenNLP. Another useful feature supported by OpenNLP is “chunking”. That is the subject of today’s article. Chunking stands between part-of-speech tagging and full parse in terms of the information it captures. POS tagging assigns part of speech to individual tokens in a sentence. So, […]

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Parsing Text with Apache OpenNLP

Written by on January 8, 2019 in Natural Language Processing, Programming with 0 Comments
Parsing Text with Apache OpenNLP

In my earlier posts I have written about parsing text using spaCy and MeaningCloud’s parsing API. For today’s article, I decided to take a look at OpenNLP, an open-source ML-based Java toolkit for parsing natural language text. OpenNLP is a fairly mature library and has been around since 2004 (source: Wikipedia). It is actively maintained and […]

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Natural Language Interaction with iLexicon Using LUIS

Written by on December 30, 2018 in LISP, Natural Language Processing, Programming with 0 Comments
Natural Language Interaction with iLexicon Using LUIS

Some time ago, I had written a series of articles on my iLexicon project. It is a Lisp package that supports many interesting queries on English words. When I was discussing this project with a client recently, she asked me if it was possible to query the system in natural language instead of through Lisp. […]

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Generating Poetry Using RiTa

Written by on December 16, 2018 in Natural Language Processing, Programming with 0 Comments
Generating Poetry Using RiTa

A few days ago, I came across a nice library called RiTa, which is described as a software toolkit for computational literature. Its two major features are text analysis and text generation.  The text analysis module parses given text to extract sentences, tokens, POS, stresses, and phonemes. There is also interesting functionality to conjugate verbs, […]

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Parsing Text with MeaningCloud’s Text Analytics API

Written by on December 9, 2018 in LISP, Natural Language Processing, Programming with 0 Comments
Parsing Text with MeaningCloud’s Text Analytics API

There is wide-spread interest in Natural Language Processing (NLP) today, and there are several API services available to cater to this demand. See this article for a fairly detailed list of services. All of them support multiple languages, including English. Today, I am going to share my experience in working with MeaningCloud’s Text Analytics API, […]

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Modeling Homeopathic Remedy Keynotes in Flora-2

Modeling Homeopathic Remedy Keynotes in Flora-2

In my last post, I got started with Flora-2 and showed how we can model homeopathic remedies from a therapeutics perspective. Although such a limited view of remedies can be helpful in treating acute ailments, for treating chronic diseases, a comprehensive understanding of the various remedies from the perspective of keynotes, kingdom classification and miasms […]

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Dependency Graph to RDF – Part 2

Written by on September 30, 2018 in LISP, Natural Language Processing, Programming with 0 Comments
Dependency Graph to RDF – Part 2

In the last post, I outlined an approach to convert a dependency graph (the result of dependency parsing) to RDF. The particular RDF format I used is Turtle, which is widely supported. Today, I would like to show how to load this RDF data in a Semantic  Graph database and make queries on it. There […]

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