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arabic-sentiment-analysis

sentiment analysis models for Arabic tweets to analyze Twitter comments as having positive, negative or neutral sentiments.

communicate-data-findings

Udacity Data Analyst NanoDegree Project 7

datasciencecoursera

datasharing

The Leek group guide to data sharing

machine-learning

Content for Udacity's Machine Learning curriculum

retail_analysis_with_walmart_data

One of the leading retail stores in the US, Walmart, would like to predict the sales and demand accurately. There are certain events and holidays which impact sales on each day. There are sales data available for 45 stores of Walmart. The business is facing a challenge due to unforeseen demands and runs out of stock some times, due to the inappropriate machine learning algorithm. An ideal ML algorithm will predict demand accurately and ingest factors like economic conditions including CPI, Unemployment Index, etc. Walmart runs several promotional markdown events throughout the year. These markdowns precede prominent holidays, the four largest of all, which are the Super Bowl, Labour Day, Thanksgiving, and Christmas. The weeks including these holidays are weighted five times higher in the evaluation than non-holiday weeks. Part of the challenge presented by this competition is modeling the effects of markdowns on these holiday weeks in the absence of complete/ideal historical data. Historical sales data for 45 Walmart stores located in different regions are available.

spelling-detection-and-correction

Spelling mistake detection and correction (Classic NLP Approach / Machine Learning Approach)

tacotron-2

DeepMind's Tacotron-2 Tensorflow implementation