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Dr. Moloy De's Blog – May 2019 Archive (3)

Profiling Store Visitors

Our Telecom Client was developing a Big Data Product that will profile demography (Age, Gender, Income, Ethnicity, Marital Status) of the visitors of the stores receiving feed from the wi-fi routers placed in the stores. Client used to receive daily feed of router data in its server which were then uploaded in HDFS / Hive Tables in the data lake for analysis.

Maintaining data quality was a serious issue without which the reports would have been erroneous. A daily e-mail used to get…

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Added by Dr. Moloy De on May 23, 2019 at 9:29pm — No Comments

Telecom Customer Analytics

I was deputed to work at Lagos, Nigeria in 2011 to work for a telecom giant there. The project in hand was to develop customer analytics modules using SAS on customer's newly built Oracle data warehouse. We thought about developing following modules.

  1. Customer Churn Analysis
  2. Calculating Product Propensities
  3. Customer Lifetime Value Calculation
  4. Customer Segmentation

Customer Churn…

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Added by Dr. Moloy De on May 17, 2019 at 4:31pm — No Comments

Multivariate Outlier Detection

I was given 3 GB of Machine Generated data being fed by 120 sensors (5 records every second) in an excel format. The task in hand was to mine out interesting patterns, if any, from the data.

I fed the data in R in my local machine and performed various descriptive and exploratory analysis to have some insights. Customer was also looking for some low cost maintenance mechanisms for their machines. So I  thought if I could study the outliers and provide some information about system…

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Added by Dr. Moloy De on May 15, 2019 at 7:30pm — No Comments

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