Big data in practice: text analytics (EN/NL/FR)

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Big data in practice: text analytics (EN/NL/FR)

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Startdata en plaatsen

computer Online: ABIS
25 nov. 2022
Toon rooster
event 25 november 2022, 09:00-17:00, ABIS
placeABIS Leuven
25 nov. 2022
Toon rooster
event 25 november 2022, 09:00-17:00, ABIS Leuven

Beschrijving

During this 1 day ABIS course, we'll introduce the most important concepts/terminology related to text analysis and "text mining", like tokens, normalisation, lemmatisation, part-of-speech, language models, text classification, ... It will become clear that automated text analysis is complicated: aspects like language, grammar, spelling mistakes, synonyms, negation, order of words, punctuation marks ... complicate the analysis. This is because text is meant as a communication means between humans, not to be understood by computers.

We will use packages like NLTK toolkit, Apache OpenNLP, and Standford's NLP Suite. The use of regular expressions will be treated.

Remark: Course description in…

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Nog niet gevonden wat je zocht? Bekijk deze onderwerpen: Text Analysis, Big Data, Data Science, Machine learning en Artificial Intelligence.

During this 1 day ABIS course, we'll introduce the most important concepts/terminology related to text analysis and "text mining", like tokens, normalisation, lemmatisation, part-of-speech, language models, text classification, ... It will become clear that automated text analysis is complicated: aspects like language, grammar, spelling mistakes, synonyms, negation, order of words, punctuation marks ... complicate the analysis. This is because text is meant as a communication means between humans, not to be understood by computers.

We will use packages like NLTK toolkit, Apache OpenNLP, and Standford's NLP Suite. The use of regular expressions will be treated.

Remark: Course description in English; Dutch and French versions are available on the ABIS website. Courses are planned in Dutch, English, and French. Consult the ABIS website for alternate course formats.

Main Topics - Content

  • What is text?
    • Building blocks of text: characters and words; grammar; punctuation; word order; language dependencies
    • Tokenisation: conceptual and technical; normalisation, a.o. composite words
    • Lemmatisation; part-of-speech tagging
    • Use of word lists and of corpora
  • Syntax and parsing
    • Introduction to some popular parsing techniques
    • Regular expressions
  • Language models
    • Statistical models
    • "Bag of words"
    • TF-IDF (term frequency & inverse document frequency)
    • n-grams and frequency distributions
  • Natural language processing (NLP)
    • overview of the aspects studied by NLP, like semantics, context, similarity, sentiment analysis
    • text categorisation; clustering techniques; measures for similarity
  • NLP software
    • overview of the current state-of-the-art and freely available software toolkits
    • practical examples and exercises with one of the toolkits

Audience: This training is intended for those who want to start practising "text analytics".

Background: Some familiarity with statistical concepts (histogram, classification, hypothesis tests). Also, a minimal programming background is helpful.

Didactics: Classroom instruction.

Duration: 1 day.

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