COURSERA CAPSTONE PROJECT MILESTONE REPORT

The model will then be integrated into a shiny application that will provide a simple and intuitive front end for the ned user. Assumptions It is assumed that the data has been downloaded, unzipped and placed into the active R directory, maintaining the folder structure. In this case, we use the US English versions. Executive summary This report is a milestone report of the capstone project introduced by Johns Hopkins University through Coursera. There are three text files:

Trigram Analysis Finally, we will follow exactly the same process for trigrams, i. This report is an exploratory analysis of the training data supplied for the capstone project. The numbers have been calculated by using the wc command. The following task have been accomplished: Word Count Line Count Longest Line blogs news twitter

To summarize the all info until now, I seleted an small subset of each data and compared with the main files.

Coursera Data Science Capstone Milestone Report

The model will then be integrated into a shiny repirt that will provide a simple and intuitive front end for the ned user. The following task have been accomplished: Rda” ggplot head trigram. In addition to loading and cleaning the data, the aim here is to make use of the NLP packages for R to tokenize n-grams as a first step toward testing a Markov model for prediction. Rmd, which can be found in my GitHub repository https: Some of the code is hidden to preserve space, but can be accessed by looking at the Raw.

  THESIS TEMPLATE UKZN

coursera capstone project milestone report

Based on testing of the N-grams, it is clear that further work is required to improve the predictive power of the alorithm. Given a word or phrase as input, the application will try to predict the next word.

The Coursera Data Science Capstone involves predictive text analytics. Convert text to lowercase and remove punctuation and numbers. For each Term Document Matrix, we list the most common unigrams, bigrams, trigrams and fourgrams.

The goal of the Data Science Capstone Project is to use the skills acquired in the specialization in creating an application based on a predictive model for text. Data description and summary statistics In this project, the following data is provided.

JHU Data Science Capstone Milestone Report

Furthermore, stemming might also be done in data preprocessing. We also remove profanity that we do not want to predict. The model will be trained using a collection of English text corpus that is compiled dapstone 3 sources – news, blogs, and tweets.

Then, we can clean data by removing numbers, white spaces, special characters, and profanity words which has been downloaded from the following link: Assumptions It is assumed that the data has been downloaded, unzipped and placed into the active Promect directory, maintaining the folder structure.

coursera capstone project milestone report

Build basic n-gram model. Next, this data was combined into a single file for further clearning and analysis. Blogs are the highest at In order to be able capdtone clean and manipulate our data, we will create a corpus, which will consist of the three sample text files.

  RPUBS CAPSTONE PROJECT

As a next step a model will be created and integrated into a Shiny app for word prediction. To get a sense of what the data looks like, I summerized the main information from each of the 3 datasets Blog, News and Twitter.

Milestone Report for Coursera Data Science Specialization SwiftKey Capstone

Another assumption is that the command wc is available in the target system. In this case, we created four different N-grams as follows: This makes intuitive sense.

It is assumed that the data has been downloaded, unzipped and placed into the active R directory, maintaining the folder structure. The words per line statistic is interesting. A possible method of prediction is to repogt the 4-gram model to find the most likely next word first. Alternative graph to see quicly the main word. For this project, the english language files will be used.

Data Science Capstone Milestone Report

To take a sample we use a binomial function. Exploratory Analysis Top 10 used words. In this project, we are interested in the three forms of data in English.