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Text Analytics and Natural Language Processing (NLP) with R

Ascendient Learning's Natural Language Processing (NLP) with R training course teaches attendees how to use R programming to explore and analyze text data. This class comprehensively covers methods...

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Duration 3 days
Course Code RPROG-114
Available Formats Classroom

Overview

Ascendient Learning's Natural Language Processing (NLP) with R training course teaches attendees how to use R programming to explore and analyze text data.  This class comprehensively covers methods for ingesting text data from a variety of sources such as plain text files, pdfs, or the web, and then processing that data using the latest natural language processing and deep learning techniques.

Skills Gained

Students will be able to

  • Import text data from a variety of source formats
  • Tokenize text data to meaningful units
  • Wrangle text data using specific textual functions
  • Compute aggregating measures on tokenized data
  • Translate between text data formats
  • Complete a sentiment analysis
  • Perform document classification
  • Perform topic modeling
  • Build a simple neural network appropriate for NLP modeling

Prerequisites

Students must have completed Ascendient Learning's Intro to R Programming training or have the equivalent experience. Students should have a working knowledge of the R language, RStudio, and the dplyr/tidyverse packages.

Course Details

Training Materials

All R Programming training students receive a copy of O’Reilly's Text Mining with R and related courseware.

Software Requirements

  • A recent release of R 4.x
  • IDE or text editor of your choice (RStudio recommended)

Outline

  • Working with unstructured text data
    • string methods
    • regex
    • reading in text files
    • review of base (R/Python)
  • Importing
    • parsing data from a text file
    • importing it into a tidy structure
    • parsing data from a pdf
      • From a “pile of pdfs”
    • scraping data from the web
    • Discussion of other methods
      • OCR
      • Handwriting recognition
  • Managing Text Data 1
    • a tidy text format
    • Overview of text data formats
      • tidy text
      • token list
      • Bag of words
      • document term matrix or document frequency matrix (dfm/dt)
      • corpus
      • docvars
    • associated formats
      • stop words
      • Sentiment lexica
      • word vectors / models
  • Managing Text Data 2
    • tokenizing text
    • units of tokenization
      • tokens
      • lemma
      • stems
      • n-grams
      • sentences
      • Tweets
    • Tf-idf
    • Log-odds (tidylo)
  • Sentiment Analysis
    • Sentiment lexica
    • Sentiment analysis with inner_join
    • Analyzing by other units
    • Valence shifting
    • VADER
  • Document Classification
    • Text similarity - stringiest
      • Cosine
      • Edit distance
    • Machine Learning for document classification
      • Naive Bayes model
  • Topic Modeling / Document Clustering
    • LDA
    • stm
  • Text and Deep Learning
    • Deep learning introduction
    • Architecture of neural networks
    • Tensorflow + keras
    • Word vectors
      • word2vec
      • Text2vec
      • GloVe
      • Spacy
    • Combining Deep Learning and NLP
      • CNN
      • RNN
      • LSTM
    • Named Entity Recognition (NER)
    • Part of Speech tagging (POS)
    • Dependency Parsing
  • Conclusion
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Schedule

Upcoming Course Dates

There are currently no scheduled dates for this course. If you are interested in this course, contact us with the form below.

Contact Information

FAQ

Does the course schedule include a Lunchbreak?

Classes typically include a 1-hour lunch break around midday. However, the exact break times and duration can vary depending on the specific class. Your instructor will provide detailed information at the start of the course.

What languages are used to deliver training?

Most courses are conducted in English, unless otherwise specified. Some courses will have the word "FRENCH" marked in red beside the scheduled date(s) indicating the language of instruction.

What does GTR stand for?

GTR stands for Guaranteed to Run; if you see a course with this status, it means this event is confirmed to run. View our GTR page to see our full list of Guaranteed to Run courses.

Does Ascendient Learning deliver group training?

Yes, we provide training for groups, individuals and private on sites. View our group training page for more information.

What does vendor-authorized training mean?

As a vendor-authorized training partner, we offer a curriculum that our partners have vetted. We use the same course materials and facilitate the same labs as our vendor-delivered training. These courses are considered the gold standard and, as such, are priced accordingly.

Is the training too basic, or will you go deep into technology?

It depends on your requirements, your role in your company, and your depth of knowledge. The good news about many of our learning paths, you can start from the fundamentals to highly specialized training.

How up-to-date are your courses and support materials?

We continuously work with our vendors to evaluate and refresh course material to reflect the latest training courses and best practices.

Are your instructors seasoned trainers who have deep knowledge of the training topic?

Ascendient Learning instructors have an average of 27 years of practical IT experience and have also served as consultants for an average of 15 years. To stay current, instructors spend at least 25 percent of their time learning new, emerging technologies and courses.

Do you provide hands-on training and exercises in an actual lab environment?

Lab access is dependent on the vendor and the type of training you sign up for. However, many of our top vendors will provide lab access to students to test and practice. The course description will specify lab access.

Will you customize the training for our company’s specific needs and goals?

We will work with you to identify training needs and areas of growth.  We offer a variety of training methods, such as private group training, on-site of your choice, and virtually. We provide courses and certifications that are aligned with your business goals.

How do I get started with certification?

Getting started on a certification pathway depends on your goals and the vendor you choose to get certified in. Many vendors offer entry-level IT certification to advanced IT certification that can boost your career. To get access to certification vouchers and discounts, please contact info@ascendientlearning.com.

Will I get access to content after I complete a course?

You will get access to the PDF of course books and guides, but access to the recording and slides will depend on the vendor and type of training you receive.

How do I request a W9 for Ascendient Learning?

View our filing status and how to request a W9.

Reviews

The class and material is good. I think some of the software needs to be updated.

Sean is the very good instructor. I would like to take his class again in the future.

ExitCertified provided a very organized way to learn and provided materials to follow along.

I liked the pace of the course. I like that I have more than instance to use the lab.

Good training material and good instruction. More time needs to be provided for the lab work.