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 [...]
Data Normalization with Spark Data normalization is a required data preparation step for many Machine Learning algorithms. These algorithms are sensitive to the relative values of the feature attributes. Data normalization is the process of bringing all the [...]
Anomaly Detection with Robust Zscore Anomaly detection with with various statistical modeling based techniques are simple and effective. The Zscore based technique is one among them. Zscore is defined as the absolute difference between [...]
Bulk Insert, Update and Delete in Hadoop Data Lake Hadoop Data Lake, unlike traditional data warehouse, does not enforce schema on write and serves as a repository of data with different formats from various sources. If [...]
Handling Categorical Feature Variables in Machine Learning using Spark Categorical features variables i.e. features variables with fixed set of unique values appear in the training data set for many real world problems. However, categorical variables [...]
Combating High Cardinality Features in Supervised Machine Learning Typical training data set for real world machine learning problems has mixture of different types of data including numerical and categorical. Many machine learning algorithms can not [...]
In a project several years ago I built a rule engine from scratch. In a recent project, which needed a rule engine, I decided to take different route. I decided to give Drools rule engine [...]
How to build your own AlphaZero AI using Python and Keras Teach a machine to learn Connect4 strategy through self-play and deep learning In this article I’ll attempt to cover three things: Two reasons why AlphaZero [...]
Uber’s Big Data Platform: 100+ Petabytes with Minute Latency By Reza Shiftehfar Uber is committed to delivering safer and more reliable transportation across our global markets. To accomplish this, Uber relies heavily on making [...]
Andrew Ng launches 'AI for Everyone', a new Coursera program aimed at Business Professionals Above: Coursera cofounder Andrew Ng poses in an undated photo. Image Credit: Andrew Ng Andrew Ng, a computer scientist who [...]
