Tag Archives: NLP

Using R for content analysis of short documents.

Recently I was trying to extract structure from a large corpus of documents. Nearly all the documents were short, many were just notes of one or two lines in length. Regular approaches to clustering do not work so well on this task. Nonetheless after doing some research I found a suitable method that I was able to apply on the data using the statistical programming language R.

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Sentiment Analysis of Web-Scraped Near-Death Experience Narratives

The recent Surviving Death documentary on Netflix is an interesting look at some of the evidence for the survival hypothesis in parapsychology. The first program in the series deals with Near-Death Experiences (NDEs). Accounts of NDEs are of interest to scientists, philosophers and others because of the possible insights they can provide into the nature of the mind-brain relationship. NDEs are also of interest because of their effects. NDEs are often profoundly transformative, having long-lasting and major effects on a persons attitudes and values. There is some research that shows that just learning about NDEs can bring psycho-spiritual benefits.

I have just had a paper published in the Journal of Near-Death studies in which I used a computational technique known as sentiment analysis to measure the sentiment polarity of the words with which people described their NDEs.

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