Data Wrangling Archives

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Data Wrangling

5 SQL Data Wrangling Techniques Every Expert Should Know

Data Wrangling Modeling SQLposted by Sheamus McGovern July 13, 2022

Data wrangling is an essential job function for data engineering, data science, or machine learning roles. As knowledgable coders, many of these professionals can rely on their programming skills and help from libraries like Pandas to wrangle data. However, it can often be optimal to manipulate... Read more

Repurposing Binary Serialized Data Structures During the Process of Data Ingestion

Data Wrangling Modeling Data Cleaning Data Ingestionposted by ODSC Community June 10, 2021

There are a great many binary formats that data might live in. Everything very popular has grown good open-source libraries, but you may encounter some legacy or in-house format for which this is not true. Good general advice is that unless there is an ongoing and/or... Read more

Brace Yourself, Data Cleaning is Coming

Data Wrangling Modeling Data Cleaning Europe 2021posted by ODSC Community April 20, 2021

If you are just too familiar with This Crazy Thing Called Data Cleaning, with both the classical and psychological tricks that help, if your hair has already gone grey because of it, if you are simply seeking fast, fun, and furious nontrivial tricks, I encourage you... Read more

Automating Data Wrangling – The Next Machine Learning Frontier

Blogs from ODSC Speakers Conferences Data Wrangling Modeling data wrangling West 2019posted by Alex Holub July 11, 2019

Editor’s note: Be sure to check out Alex’s talk at ODSC West 2019 this November, “The Last Frontier of Machine Learning – Data Wrangling.” Up to 95% of a data scientist’s time is spent data wrangling. Conversely, about 99% of data-scientists hate data wrangling. That’s problematic.... Read more

The Importance of PreProcessing Data the Right Way

Data Wranglingposted by Caspar Wylie, ODSC October 16, 2018

There are so many different aspects of training a neural network that affect its performance. Many data scientists spend too much time thinking about learning rates, neuron structures, and epochs before actually using correctly optimized data. Without properly formatting data, your neural network will be useless,... Read more

Top Data Wrangling Skills Required for Data Scientists

Data Wrangling Modeling data munging data wranglingposted by Daniel Gutierrez, ODSC September 19, 2018

Whatever you want to call it – data wrangling, data munging, or data transformation, the part of the Data Science Process sitting in between data acquisition and exploratory data analysis (EDA) is one of the core skills a data scientist must have. It includes a set... Read more

No Need for Deciphering – Learn How to Make Your Own Dataset Instead

Conferences Data Wrangling Modeling odsc east 2018posted by Jacquelyn Elias, ODSC August 24, 2018

Key Takeaways: By creating, capturing, and curating data, one can practice “data creationism” and be creative with data to make your own dataset. While Iris and Titanic are well-known datasets available to experiment with machine learning and data science, challenge yourself to create your own dataset.... Read more

Bayesian Estimation, Group Comparison, and Workflow

Data Wrangling Modelingposted by Eric Ma July 31, 2018

Over the past year, having learned about Bayesian inference methods, I finally see how estimation, group comparison, and model checking build upon each other into this really elegant framework for data analysis. Parameter Estimation The foundation of this is “estimating a parameter”. In a typical situation,... Read more

How Well Did Data Scientists Predict the 2018 World Cup? (Hint: Not Very)

Data Wrangling Modeling Predictive Analytics Research Statistics popular culture world cupposted by Alex Amari July 26, 2018

This year’s World Cup in Russia was the most watched sporting event in history. GlobalWebIndex reports that up to 3.4 billion people – around half of the world’s population – watched some part of the tournament. As with past World Cups, a global prediction market emerged... Read more

The Best Mario Kart Character According to Data Science

Data Wrangling Modelingposted by Civis Analytics Team July 20, 2018

Mario Kart was a staple of my childhood — my friends and I would spend hours after school as Mario, Luigi, and other characters from the Nintendo universe racing around cartoonish tracks and lobbing pixelated bananas at each other. One thing that always vexed our little group of... Read more