Welcome!

Apache Authors: Pat Romanski, Liz McMillan, Elizabeth White, Christopher Harrold, Janakiram MSV

Related Topics: @DXWorldExpo, @CloudExpo, @ThingsExpo

@DXWorldExpo: Blog Feed Post

Golden State Warriors Analytics Exercise | @BigDataExpo #BigData #Analytics

Identifying and quantifying variables that might be better predictors of performance

For a recent University of San Francisco MBA class, I wanted to put my students in a challenging situation where they would be forced to make difficult data science trade-offs between gathering data, preparing the data and performing the actual analysis.

The purpose of the exercise was to test their ability to “think like a data scientist” with respect to identifying and quantifying variables that might be better predictors of performance. The exercise would require them to:

  • Set up a basic analytic environment
  • Gather and organize different data sources
  • Explore the data using different visualization techniques
  • Create and test composite metrics by grouping and transforming base metrics
  • Create a score or analytic model that supports their recommendations

I gave them the links to 10 Warrior games (5 regulation wins, 3 overtime losses and 2 regulation losses) as their starting data set.

I then put them in a time boxed situation (spend no more than 5 hours on the exercise) with the following scenario:

You have been hired by the Golden State Warriors coaching staff to review game performance data to identify and quantify metrics that predict a Warriors victory

Here were the key deliverables for the exercise:

  1. I wanted a single, easy-to-understand slide with in-game and/or player recommendations.
  2. I wanted a break out of how they spent their 5 hours across the following categories:
  • Setting up your analytic environment
  • Gathering and organizing the data
  • Visualizing and analyzing the data
  • Creating the analytic models and recommendations
  1. Finally, I wanted back-up information (data, visualizations and analytics) in order to defend their in-game and/or player recommendations.

Exercise Learnings
Here is what we learned from the exercise:

Lesson #1: It’s difficult to not spend too much time gathering and cleansing data. On average, the teams spent 50% to 80% of their time gathering and preparing the data. That only left 10% to 20% of their time for the actual analysis. It’s really hard to know when “good enough” is really “good enough” when it comes to gathering and preparing the data.

Lesson #2: Quick and dirty visualizations are critical in understanding what is happening in the data and establishing hypotheses to be tested. For example, the data visualization in Figure 1 quickly highlighted the importance of offensive rebounds and three-point shooting percentage in the Warriors’ overtime losses.

Figure 1: Use Quick Data Visualizations to Establish Hypotheses to Test

Lesson #3: Different teams came up with different sets of predictive variables. Team #1 came up with Total Rebounds, Three-Point Shooting %, Fast Break Points and Technical Fouls as the best predictors of performance. They tested a hypothesis that the more “aggressive” the Warriors played (as indicated by rebounding, fast break points and technical fouls), the more likely they were to win (see Figure 2).

Figure 2: Testing Potential Predictive Variables

Team #2 came up with the variables of Steals, Field Goal Percentage and Assists as the best predictors of performance (see Figure 3).

Figure 3: ANOVA Table for Team #2

Team #2 then tested their analytic models against two upcoming games: New Orleans and Houston. Their model accurately predicted not only the wins, but the margin of victory fell within their predicted ranges. For example in the game against New Orleans, their model predicted a win by 21 to 30 points, in which the Warriors actually won by 22 (see Figure 4).

Figure 4: Predicting Warriors versus New Orleans Winner

And then in the Houston game, their model predicted a win by 0 to 10 points (where 0 indicated an overtime game), and the Warriors actually won that game by 9 points (see Figure 5).

Figure 5: Predicting Warriors versus Houston Winner

I think I’m taking Team #2 with me next time I go to Vegas!

By the way, in case you want to run the exercise yourself, Appendix A lists the data sources that the teams used for the exercise. But be sure to operate under the same 5-hour constraint!

Summary
A few other learnings came out of the exercise, which I think are incredibly valuable for both new as well as experienced data scientists:

  • Don’t spend too much time trying to set up the perfect analytic environment. Sometimes a simple analytic environment (spreadsheet) can yield consider insights with little effort.
  • Start with small data sets (10 to 20GB). That way you’ll spend more time visualizing and analyzing the data and less time trying to gather and prepare the data. You’ll be able to develop and test hypotheses much more quickly with the smaller data sets running on your laptop, which one can stress test later using the full data set.
  • Make sure that your data science team collaborates closely with business subject matter experts. The teams that struggled in the exercise were the teams that didn’t have anyone who understood the game of basketball (not sure how that’s even possible, but oh well).

One of the many reasons why I love teaching is the ability to work with students who don’t yet know what they can’t accomplish. In their eyes, everything is possible. Their fresh perspectives can yield all sorts of learnings, and not just for them. And yes, you can teach an old dog like me new tricks!

Appendix A:  Exercise Data Sources
Extract “Team Stats” from the Warriors Game Results website: http://www.espn.com/nba/team/schedule/_/name/gs.  Listed below is a cross-section of games from which you may want to use to start your analysis.

Wins

Rockets 1/20/17: http://www.espn.com/nba/matchup?gameId=400900067

Thunder 1/18/17: http://www.espn.com/nba/matchup?gameId=400900055

Cavaliers 1/16/17: http://www.espn.com/nba/matchup?gameId=400900040

Raptors 11/16/16: http://www.espn.com/nba/matchup?gameId=400899615

Trailblazers 1/2/17:  http://www.espn.com/nba/matchup?gameId=400900139

Overtime (Losses)

Houston 12/1/16: http://www.espn.com/nba/matchup?gameId=400899436

Grizzles 1/6/17: http://www.espn.com/nba/matchup?gameId=400899971

Sacramento 2/4/17: http://www.espn.com/nba/matchup?gameId=400900169

Losses

Spurs 10/25/16: http://www.espn.com/nba/boxscore?gameId=400899377

Lakers 11/4/16: http://www.espn.com/nba/matchup?gameId=400899528

Cavaliers 12/25/16: http://www.espn.com/nba/matchup?gameId=400899899

Note: You are welcome to gather team and/or individual stats from any other games or websites that you wish.

The post Golden State Warriors Analytics Exercise appeared first on InFocus Blog | Dell EMC Services.

Read the original blog entry...

More Stories By William Schmarzo

Bill Schmarzo, author of “Big Data: Understanding How Data Powers Big Business” and “Big Data MBA: Driving Business Strategies with Data Science”, is responsible for setting strategy and defining the Big Data service offerings for Dell EMC’s Big Data Practice.

As a CTO within Dell EMC’s 2,000+ person consulting organization, he works with organizations to identify where and how to start their big data journeys. He’s written white papers, is an avid blogger and is a frequent speaker on the use of Big Data and data science to power an organization’s key business initiatives. He is a University of San Francisco School of Management (SOM) Executive Fellow where he teaches the “Big Data MBA” course. Bill also just completed a research paper on “Determining The Economic Value of Data”. Onalytica recently ranked Bill as #4 Big Data Influencer worldwide.

Bill has over three decades of experience in data warehousing, BI and analytics. Bill authored the Vision Workshop methodology that links an organization’s strategic business initiatives with their supporting data and analytic requirements. Bill serves on the City of San Jose’s Technology Innovation Board, and on the faculties of The Data Warehouse Institute and Strata.

Previously, Bill was vice president of Analytics at Yahoo where he was responsible for the development of Yahoo’s Advertiser and Website analytics products, including the delivery of “actionable insights” through a holistic user experience. Before that, Bill oversaw the Analytic Applications business unit at Business Objects, including the development, marketing and sales of their industry-defining analytic applications.

Bill holds a Masters Business Administration from University of Iowa and a Bachelor of Science degree in Mathematics, Computer Science and Business Administration from Coe College.

@ThingsExpo Stories
Most people haven’t heard the word, “gamification,” even though they probably, and perhaps unwittingly, participate in it every day. Gamification is “the process of adding games or game-like elements to something (as a task) so as to encourage participation.” Further, gamification is about bringing game mechanics – rules, constructs, processes, and methods – into the real world in an effort to engage people. In his session at @ThingsExpo, Robert Endo, owner and engagement manager of Intrepid D...
Recently, WebRTC has a lot of eyes from market. The use cases of WebRTC are expanding - video chat, online education, online health care etc. Not only for human-to-human communication, but also IoT use cases such as machine to human use cases can be seen recently. One of the typical use-case is remote camera monitoring. With WebRTC, people can have interoperability and flexibility for deploying monitoring service. However, the benefit of WebRTC for IoT is not only its convenience and interopera...
Michael Maximilien, better known as max or Dr. Max, is a computer scientist with IBM. At IBM Research Triangle Park, he was a principal engineer for the worldwide industry point-of-sale standard: JavaPOS. At IBM Research, some highlights include pioneering research on semantic Web services, mashups, and cloud computing, and platform-as-a-service. He joined the IBM Cloud Labs in 2014 and works closely with Pivotal Inc., to help make the Cloud Found the best PaaS.
Everything run by electricity will eventually be connected to the Internet. Get ahead of the Internet of Things revolution. In his session at @ThingsExpo, Akvelon expert and IoT industry leader Sergey Grebnov provided an educational dive into the world of managing your home, workplace and all the devices they contain with the power of machine-based AI and intelligent Bot services for a completely streamlined experience.
Cloud-enabled transformation has evolved from cost saving measure to business innovation strategy -- one that combines the cloud with cognitive capabilities to drive market disruption. Learn how you can achieve the insight and agility you need to gain a competitive advantage. Industry-acclaimed CTO and cloud expert, Shankar Kalyana presents. Only the most exceptional IBMers are appointed with the rare distinction of IBM Fellow, the highest technical honor in the company. Shankar has also receive...
Business professionals no longer wonder if they'll migrate to the cloud; it's now a matter of when. The cloud environment has proved to be a major force in transitioning to an agile business model that enables quick decisions and fast implementation that solidify customer relationships. And when the cloud is combined with the power of cognitive computing, it drives innovation and transformation that achieves astounding competitive advantage.
Personalization has long been the holy grail of marketing. Simply stated, communicate the most relevant offer to the right person and you will increase sales. To achieve this, you must understand the individual. Consequently, digital marketers developed many ways to gather and leverage customer information to deliver targeted experiences. In his session at @ThingsExpo, Lou Casal, Founder and Principal Consultant at Practicala, discussed how the Internet of Things (IoT) has accelerated our abilit...
In his session at Cloud Expo, Alan Winters, U.S. Head of Business Development at MobiDev, presented a success story of an entrepreneur who has both suffered through and benefited from offshore development across multiple businesses: The smart choice, or how to select the right offshore development partner Warning signs, or how to minimize chances of making the wrong choice Collaboration, or how to establish the most effective work processes Budget control, or how to maximize project result...
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. In his session at @BigDataExpo, Jack Norris, Senior Vice President, Data and Applications at MapR Technologies, reviewed best practices to ...
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, discussed the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
In his keynote at 19th Cloud Expo, Sheng Liang, co-founder and CEO of Rancher Labs, discussed the technological advances and new business opportunities created by the rapid adoption of containers. With the success of Amazon Web Services (AWS) and various open source technologies used to build private clouds, cloud computing has become an essential component of IT strategy. However, users continue to face challenges in implementing clouds, as older technologies evolve and newer ones like Docker c...
"Akvelon is a software development company and we also provide consultancy services to folks who are looking to scale or accelerate their engineering roadmaps," explained Jeremiah Mothersell, Marketing Manager at Akvelon, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Two weeks ago (November 3-5), I attended the Cloud Expo Silicon Valley as a speaker, where I presented on the security and privacy due diligence requirements for cloud solutions. Cloud security is a topical issue for every CIO, CISO, and technology buyer. Decision-makers are always looking for insights on how to mitigate the security risks of implementing and using cloud solutions. Based on the presentation topics covered at the conference, as well as the general discussions heard between sessio...
To Really Work for Enterprises, MultiCloud Adoption Requires Far Better and Inclusive Cloud Monitoring and Cost Management … But How? Overwhelmingly, even as enterprises have adopted cloud computing and are expanding to multi-cloud computing, IT leaders remain concerned about how to monitor, manage and control costs across hybrid and multi-cloud deployments. It’s clear that traditional IT monitoring and management approaches, designed after all for on-premises data centers, are falling short in ...
Organizations planning enterprise data center consolidation and modernization projects are faced with a challenging, costly reality. Requirements to deploy modern, cloud-native applications simultaneously with traditional client/server applications are almost impossible to achieve with hardware-centric enterprise infrastructure. Compute and network infrastructure are fast moving down a software-defined path, but storage has been a laggard. Until now.
DXWorldEXPO LLC announced today that the upcoming DXWorldEXPO | CloudEXPO New York event will feature 10 companies from Poland to participate at the "Poland Digital Transformation Pavilion" on November 12-13, 2018.
Digital Transformation is much more than a buzzword. The radical shift to digital mechanisms for almost every process is evident across all industries and verticals. This is often especially true in financial services, where the legacy environment is many times unable to keep up with the rapidly shifting demands of the consumer. The constant pressure to provide complete, omnichannel delivery of customer-facing solutions to meet both regulatory and customer demands is putting enormous pressure on...
The best way to leverage your CloudEXPO | DXWorldEXPO presence as a sponsor and exhibitor is to plan your news announcements around our events. The press covering CloudEXPO | DXWorldEXPO will have access to these releases and will amplify your news announcements. More than two dozen Cloud companies either set deals at our shows or have announced their mergers and acquisitions at CloudEXPO. Product announcements during our show provide your company with the most reach through our targeted audienc...
In an era of historic innovation fueled by unprecedented access to data and technology, the low cost and risk of entering new markets has leveled the playing field for business. Today, any ambitious innovator can easily introduce a new application or product that can reinvent business models and transform the client experience. In their Day 2 Keynote at 19th Cloud Expo, Mercer Rowe, IBM Vice President of Strategic Alliances, and Raejeanne Skillern, Intel Vice President of Data Center Group and ...
More and more brands have jumped on the IoT bandwagon. We have an excess of wearables – activity trackers, smartwatches, smart glasses and sneakers, and more that track seemingly endless datapoints. However, most consumers have no idea what “IoT” means. Creating more wearables that track data shouldn't be the aim of brands; delivering meaningful, tangible relevance to their users should be. We're in a period in which the IoT pendulum is still swinging. Initially, it swung toward "smart for smart...