Data to Insights

Welcome to my Data Science Portfolio

Vishnu Vijayakumar
Data Analyst/ Data Scientist | Storyteller
"All models are wrong, but some are useful”. George E. P. Box

My data journey

GENESIS: Year 2010, when I was in the 12th grade, a small excerpt from The Guardian on a web service launched by Google in 2008 called Google Flu Trends, piqued my curiosity as Google could raise alarm over flu outbreaks in the United States up to two weeks in advance of existing public health services. Analysing millions of individual search queries related to the disease which gave them the ability to predict rise in flu cases in real-time -information that could be used by public health officials to warn the public or plan their responses. The newfound interest for data, prediction, and its applicability across diverse domains evolved into a passion with time

Enough talking, time for a deep dive!

Sentiment Analysis and Topic Modeling

Employed Sentiment analysis and Topic Modeling along with various machine learning algorithms to mine into large unstructured datasets for analysing user sentiments, predict user ratings and derive actionable insights

Predicting Corporate Bankruptcy

Explored multiple supervised learning methods such as Logistic Regression, Random Forests, General Additive Models and Neural Networks to investigate the accuracy of predicting bankruptcy