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NLP Intro: What is tf-idf and how to use it?

NLP Intro: What is tf-idf and how to use it?

Text analysis often involves comparing multiple texts or even collections of documents. This can require vertical (deep-diving in one text)…
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
NLP Intro: Using Lexicons in Sentiment Analysis

NLP Intro: Using Lexicons in Sentiment Analysis

Sentiment analysis, or as it is also known, opinion mining, is a key step in unlocking the meaning of a text. Having spent some years in…
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
NLP Intro: Exploring word frequency with the tidytext R package

NLP Intro: Exploring word frequency with the tidytext R package

In the previous article in the series, we introduced the term text mining and looked at the benefits of tidy datasets. Now let’s have a…
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
NLP Intro: What is the tidy approach to text mining?

NLP Intro: What is the tidy approach to text mining?

Data scientists Julia Silge and David Robinson created the tidytext R package to make life easier for everyone interested in analysing and…
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
NLP Intro: Tokenizing your text

NLP Intro: Tokenizing your text

Texts (from famous fiction to archival data, court decisions and social media conversations) offer exciting opportunities for…
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
NLP Intro: what are N-grams and how to use them?

NLP Intro: what are N-grams and how to use them?

NLP stands for Natural Language Processing*. This is a branch of computer science focusing on the analysis of written or spoken language.
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
Is AVE (advertising value equivalency) a reliable success metric?

Is AVE (advertising value equivalency) a reliable success metric?

I love watching Breakfast on TVNZ with my morning coffee. It’s a lovely mix of the latest political news and fascinating stories like the…
Go to the profile of Konstantina Slaveykova
Konstantina Slaveykova
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