Tag Archives: Big Data

How-to: Build a Machine-Learning App Using Sparkling Water and Apache Spark

Categories: CDH Data Science Guest How-to Spark

Thanks to Michal Malohlava, Amy Wang, and Avni Wadhwa of H20.ai for providing the following guest post about building ML apps using Sparkling Water and Apache Spark on CDH.

The Sparkling Water project is nearing its one-year anniversary, which means Michal Malohlava, our main contributor, has been very busy for the better part of this past year. The Sparkling Water project combines H2O machine-learning algorithms with the execution power of Apache Spark.

Read more

Continuous Distribution Goodness-of-Fit in MLlib: Kolmogorov-Smirnov Testing in Apache Spark

Categories: Spark

Thanks to former Cloudera intern Jose Cambronero for the post below about his summer project, which involved contributions to MLlib in Apache Spark.

Data can come in many shapes and forms, and can be described in many ways. Statistics like the mean and standard deviation of a sample provide descriptions of some of its important qualities. Less commonly used statistics such as skewness and kurtosis provide additional perspective into the data’s profile.

Read more

Using Apache Spark for Massively Parallel NLP at TripAdvisor

Categories: Guest Spark Use Case

Thanks to Jeff Palmucci, Director of Machine Learning at TripAdvisor, for permission to republish the following (originally appeared in TripAdvisor’s Engineering/Operations blog).

Here at TripAdvisor we have a lot of reviews, several hundred million according to the last announcement. I work with machine learning, and one thing we love in machine learning is putting lots of data to use.

I’ve been working on an interesting problem lately and I’d like to tell you about it.

Read more

How Apache Spark, Scala, and Functional Programming Made Hard Problems Easy at Barclays

Categories: Guest Spark Use Case

Thanks to Barclays employees Sam Savage, VP Data Science, and Harry Powell, Head of Advanced Analytics, for the guest post below about the Barclays use case for Apache Spark and its Scala API.

At Barclays, our team recently built an application called Insights Engine to execute an arbitrary number N of near-arbitrary SQL-like queries and execute them in a way that can scale with increasing N. The queries were non-trivial,

Read more

How-to: Install Apache Zeppelin on CDH

Categories: General Guest How-to Spark

Our thanks to Karthik Vadla and Abhi Basu, Big Data Solutions engineers at Intel, for permission to re-publish the following (which was originally available here).

Data science is not a new discipline. However, with the growth of big data and adoption of big data technologies, the request for better quality data has grown exponentially. Today data science is applied to every facet of life—product validation through fault prediction,

Read more