While all the focus is on maximizing model accuracy while training a machine learning model, enough attention is not paid to model robustness. You may have a perfectly trained model with high accuracy, but how [...]
With Covid-19 ravaging the world, a lot of people are exploring ways AI and ML can help in combating the virus spread and infection. Viruses like Covid-19 is a complex socio-economic and public health [...]
Bulk Mutation in an Integration Data Lake with Spark Data lakes act as repository of data from various sources, possibly of different formats. It can be used to build data warehouse or to perform [...]
Learning Alarm Threshold from User Feedback using Decision Tree on Spark Alarm fatigue is a phenomena where some one is exposed to large number of alarms, become desensitized to them and start ignoring them. It’s been [...]
Pluggable Rule Driven Data Validation with Spark Data validation is an essential component in any ETL data pipeline. As we all know most Data Engineers and Scientist spend most of their time cleaning and preparing [...]
Improving Elastic Search Query Result with Query Expansion using Topic Modeling Query expansion is a process of reformulating a query to improve query results and to be more specific to improve the recall for a [...]
In Cassandra, rows are hash partitioned by default. If you want to data sorted by some attribute, column name sorting feature of Cassandra is usually exploited. If you look at the Cassandra slice range [...]
Hive Plays Well with JSON Hive is an abstraction on Hadoop Map Reduce. It provides a SQL like interface for querying HDFS data, whch accounts for most of it’s popularity. In Hive, table structured data [...]
Removing Duplicates from Order Data Using Spark If you work with data, there is a high probability that you have run into duplicate data in your data set. Removing duplicates in Big Data is [...]
Storing Nested Objects in Cassandra with Composite Columns One of the popular features of MongoDB is the ability to store arbitrarily nested objects and be able to index on any nested field. In this post I will [...]
