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Amazon Reviews Analysis for Focused Online Shopping

Notebook - Report


When shopping online, we often rely on the feedback provided by other internet users to decide wheter the merchandise we are considering buying is worth the money. Most electronic commerce platform allow their users to review or rate their purchases, usually with a system of stars or points. In this project, we aim to complement those means of providing feedback by automatically analysing and aggregating the reviews of multiple users. We experiment with opinion mining through the use of natural language processing techniques. The goal is to extract from the reviews common opinion on product characteristics such as quality or performance. This way, subsequent buyers will be able to grasp at a glance the strong and weak points of what want to acquire.

Research questions

  1. What are the recurring opinions on a given product ?
  2. Can they be used to characterize it and offer to the reader a quick overview of its pros and cons?

Additional research questions:

  1. Do certain brands tend to be associated with specific characteristics ?


Amazon product data contains

Electronic product reviews and metadata from Amazon, spanning May 1996 - July 2014.

  • Use reviews for characteristics extraction
  • Ratings for sentiment analysis training
  • Metadata to associate common product characteristics to brands

Wiktionary page titles

Page titles from Wiktionary, a free and open dictionnary project from the Wikimedia foundation. Over 5 millions english words.

  • Use wiktionnary entries to filter out bigram characteristics that corresponds to compound words

External libraries

  • Natural Language Tool Kit
  • Numpy
  • Pandas
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