Yu Zhou – Medium

Yu Zhou

Yu Zhou
in
Towards Data Science

My Tricks for Spark Performance Optimization

Spark performance tuning is the biggest pain point for serious data work, here are my tricks help you improve your Spark easily and quickly

Dec 25, 2020

My Tricks for Spark Performance Optimization

Dec 25, 2020

Yu Zhou
in
Towards Data Science

Decision Making Is More Than Quantitative Problem Solving

“All my best decisions in life and work have been made with heart, intuition, courage and not analysis.” — Jeff Bezos at Economic Club of…

Apr 22, 2019

Decision Making Is More Than Quantitative Problem Solving

Apr 22, 2019

Yu Zhou
in
Towards Data Science

Filter, Aggregate and Join in Pandas, Tidyverse, Pyspark and SQL

On the Blessing and Curse of Language Abundance in Data Science

Nov 19, 2018

Filter, Aggregate and Join in Pandas, Tidyverse, Pyspark and SQL

Nov 19, 2018

Yu Zhou
in
Towards Data Science

Data Storytelling: improve insight-to-action conversion for a greater real world impact

A Gap Between Data Science Results and Real World Impact

Jun 17, 2018

Data Storytelling: improve insight-to-action conversion for a greater real world impact

Jun 17, 2018

Yu Zhou
in
Towards Data Science

Data Pipeline Engineering Towards High Data Availability

Extracting insights and making predictions from data are my primary goals, however, before I can get value from data, I first need to…

Apr 25, 2018

Data Pipeline Engineering Towards High Data Availability

Apr 25, 2018

Yu Zhou
in
Towards Data Science

Build Data Science Center of Excellence to Manage the Complete Model Life Cycle

This wave of data technology revolution remains strong and companies of various sizes are actively building/expanding their Data Science…

Mar 17, 2018

Build Data Science Center of Excellence to Manage the Complete Model Life Cycle

Mar 17, 2018

Yu Zhou
in
Towards Data Science

Query Data Effectively in Hadoop to Feed Your Hungry Data Science Ideas

Big data at my company was getting bigger and Hadoop was a very hot topic in 2015, following the trend my company decided to migrate from…

Feb 17, 2018

Query Data Effectively in Hadoop to Feed Your Hungry Data Science Ideas

Feb 17, 2018

Yu Zhou

Towards Intelligence Craftsmanship

In 2017, I spent most of my time in analyzing business data to support decision-making and building predictive models to either create or…

Dec 28, 2017

Dec 28, 2017

Yu Zhou
in
Towards Data Science

Lean Dashboards: Data Inclusion & Exclusion Principles

Dashboards bring data and visualization to users in an interactive fashion and hence get a lot of likes and popularity. To keep dashboards…

Oct 28, 2017

Lean Dashboards: Data Inclusion & Exclusion Principles

Oct 28, 2017

Yu Zhou

Play in Everyone’s Backyard

In a given scientific paper, including the standard sections such as background, data, methodology, analysis and conclusion, which section…

Sep 13, 2017

Play in Everyone’s Backyard

Sep 13, 2017

Yu Zhou

Yu Zhou

Data Scientist @Cloudability, I am interested in everything data science, all my posts are my own. Twitter: @yuzhouyz

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