Data Science at Zillow (Slideshare)

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The Data Scientist Will Be Replaced By Tools

We just started to use the term “data scientist” and the demise of this new profession is already predicted? Well, at least it’s not one more “rise of the machines” prophecy; it’s the provocative title of a proposed panel for the upcoming SXSW.

The organizer of the panel, Scott Hendrickson of Gnip, has provided a useful run-down of some of the arguments for and against the possible disappearance of data scientists. Supporting the proposition are the current scarcity of data science talent and a slew of startups providing “data science as a service.” As an example of the opposition to the “democratization of algorithms,” Hendrickson quotes Cathy (Mathbabe) O’Neil who wrote recently that “if your model fails, you want to be able to figure out why it failed. The only way to do that is to know how it works to begin with. Even if it worked in a given situation, when you train on slightly different data you might run into something that throws it for a loop, and you’d better be able to figure out what that is.” In other words, machines will never have the deep understanding of the tools of data science that is required to practice data science.   Continue reading

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Data Science is so 1996!

 

Source: A History of the International Federation of Classifi cation Societies

Data Science is so 1996!
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Doing Data Science at Manheim

As ones and zeros eat the world, data is the new product and data science is the new process of innovation.

The International Institute for Analytics predicts that in 2014 companies in a variety of industries will increasingly use analytics on the data they have accumulated to develop new products and services. NewVantage Partners’ most recent Big Data Survey reports that 68% of executives felt that “new product innovations” was the greatest value to their organization from big data. In releasing the Accenture Technology Vision 2014, Accenture’s CTO Paul Daugherty said that “Digital is rapidly becoming part of the fabric of [large enterprises’] operating DNA and they are poised to become the digital power brokers of tomorrow.”

The best example of this trend I’ve encountered recently came from an industry one does not necessarily associate with data crunching and analysis—the vehicle remarketing industry, better known as used cars auctions. In 2012, Manheim, a subsidiary of Cox Enterprises, handled nearly 8 million used vehicles, facilitating transactions representing more than $50 billion in value.  With annual revenues of more than $2.5 billion, Manheim offers its services in 14 countries, from physical and online auction channels to financing, transportation, and mobile solutions. Manheim’s research and consulting arm, Manheim Consulting, provides market intelligence and publishes the monthly Used Vehicle Value Index and the annual Used Car Market Report (see here for the 2014 version).

Manheim has provided for free this type of analysis, seeing it as part of the value it offers to auto dealers who are members of its network.  But now it has moved into using its deep knowledge of the used car market and its analytics expertise to offer a new, fee-based service.  Shifting the analytics team from supporting the business to generating revenues, “we’ve decided to look at how we can help dealers in managing the risk associated with their inventory,” T. Glenn Bailey told me.

Bailey is Senior Director of Enterprise Product Planning at Manheim, and his responsibilities include market segmentation, forecasting, and optimization.  He and his team started testing last year a new service called DealShield. The idea came from the financial markets, specifically put option contracts. Just like a put option protects the buyer from a decline in the price of a stock below a specified price, so does DealShield offer a guarantee that Manheim will buy a car back from the dealer, within a certain time frame, for what they paid for it plus the fee they paid.  “It is as if they never bought the car,” says Bailey.

Manheim’s market knowledge and analytics skills give it confidence in its estimates of the value of a car and what they would be able to offer for it if it comes back to them. “We see a lot of value in it,” says Bailey, “because one of the things dealers like to have is liquidity. They use wholesale financing to buy used cars and typically repay the loan within seven to fourteen days. The inventory that’s sitting out there is money that is tied up. DealShield allows them to get out of that car and get their money back in a certain period of time.”

To do their analysis, the Manheim team uses tools that have served this purpose for years, demonstrating that for certain types of analysis and data you can do data science without using any of the new big data technologies. The data is collected and stored in an IBM DB2 database and the analysis is done using a variety of SAS analytics tools.  “The need to combine data from different sources is why we moved into a SAS cloud,” says Bailey. “I wanted our analyst team to be focused on the analytics and not worry about the administrative side.”

Speaking of the analyst team, Bailey says that “we are in the same market for analytics and data science talent with everybody.” In the competition for these hard-to-find professionals, Bailey looks for creativity, communications skills and willingness to learn the business. “In my experience,” he says, “it is fairly easy to tell if you have the technical chops.” He spends most of the time when he interviews people trying to determine if they are creative and can come up with new ideas on how to apply analytics tools to the data to find new insights. “Reversing the flow of cause and effect,” Bailey calls it. “Maybe optimization can tell us where to send a vehicle to maximize value.”

In addition to looking for “people that can bring technology to the business,” Bailey also looks for people who are comfortable with “getting with the business itself.” He calls it “putting on the polo shirt,” spending time with the dealers and getting engaged with them to understand their business first-hand.  This practical bent does not stop with the hiring of the right people but continues with establishing the right work environment and a “fail-fast” culture. “In some sense,” says Bailey, ”failure is rewarded because it means you are testing this thing out.” When they developed DealShield, “we had a chart that over a 2-month period showed all the things that failed. If it doesn’t work, kill it.”

In addition to being the first knowledge-based service that is expected to bring in a new revenue stream, DealShield breaks new ground for Manheim because it is the first time the company actually owns cars (when they come back from the dealer), not just acting as a middle-man. That became an opportunity for an analyst on Bailey’s team to hone further her knowledge of the business.  “She is now responsible for selling the cars. She is setting the auction, the floor price, where to run the auction,” says Bailey.

Doing data science means engaging with the business, inventing new data-based products, even becoming an integral part of revenue stream for the business.

[Originally published on Forbes.com]

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The Data Science Interview: Mingsheng Hong, Hadapt

Data scientists are data junkieswhen they see a new data set they are just naturally excited and can’t wait to explore.

Mingsheng Hong is Chief Data Scientist at Hadapt, a Boston-based startup that offers an analytical platform that integrates structured and unstructured data in one cloud-optimized system. Before joining Hadapt, Mingsheng was Field CTO for Vertica. He holds a Ph.D. in Computer Science from Cornell and a BSc in Computer Science from Fudan University. Mingsheng is president of NECINA and is active in St. Baldrick’s Foundation, a volunteer-driven charity that funds research to find cures for childhood cancers. I talked to Mingsheng just before he shaved his head, a visual indicator and act of solidarity expected from successful St. Baldrick’s fundraisers.

As a graduate student, were you thinking of an academic career?

At Cornell, I explored both academic and private industry career tracks. I love research and innovation, and discovered my passion for explaining ideas to people from various backgrounds and getting them excited about these ideas. While that aligns with a more academic track, in the end I decided the private sector was a better fit for me. I’m driven by the challenge of taking an idea and carrying it end-to-end, from idea to product development to sales. During graduate school, I had the opportunity to visit Microsoft for a few summers, and I got a lot of exposure to database R&D and came away with a good feel for the industry. My research work there was commercialized in SQL Server 2008 and 2012, which was very exciting.   Continue reading

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The Big Data Interview: Sanjay Mirchandani, CIO, EMC

If data sits on a desk somewhere and is not being used, it’s an opportunity wasted

Sanjay Mirchandani believes IT has to take the lead in adding value to the business in the form of big data “addictive analytics.” Mirchandani is Chief Information Officer and COO, Global Centers of Excellence, at EMC Corporation. He has been recognized as one of Computerworld’s Premier 100 IT Leaders and Boston Business Journal’s CIOs of the Year. The following is an edited transcript of our recent phone conversation.

What would you say to a CIO who dismisses big data as just another buzzword?

I would say that for too long we have been trying to manage down information. The IT world that we have become comfortable with for many years was mostly within the enterprise, maybe connecting to some partners and customers. It was also mostly structured, basically revolving around transactional data. Today, the volume, variety, velocity and complexity of information have changed the IT landscape. These are the four things I challenge CIOs to really think about. We all know how to do structured information. But the moment you throw in unstructured and semi-structured information, life changes. This is where the value is for organizations today.

Does this also change the relationships between IT and the business?

Only IT has a complete picture of all the data in the enterprise. At the same time, IT today cannot have a monopoly on information. That changes the role and responsibilities of IT and the business. We in IT want to deliver more as a service and the business wants to consume more as a service.  And IT and the business increasingly share tools and capabilities. For example, I can offer a tool like Greenplum Chorus, which is a community-based BI-data warehousing-analytics tool, where data scientists in IT work collaboratively with data scientists sitting in the business. If there’s something we can do better, we’ll take it on ourselves; if there’s something they can do better, like creating their own wrappers around the analytics, they will do it. What’s clear is that IT and the business have never been better aligned.    Continue reading

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Data Scientists In Growing Demand, Survey Says

73% of data science and analytics teams planned to hire in Q1/Q2 of 2021 and 81% planned to hire in Q3/Q4 of 2021. 

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2013 Data Science Salary Survey: Open source tools correlate with higher salary

“In our report, 2013 Data Science Salary Survey, we make our own data-driven contribution to the conversation. We collected a survey from attendees of the Strata Conference in New York and Santa Clara, California, about tool usage and salary…

What did we find?

In a sentence: those who use data tools make more.

More specifically, the tools that correlate with higher salary are scalable and generally open source; they are often script-based or built for machine learning.  Those attendees who tend to use one such tool tend to use others––that is, these tools form a ‘cluster’ in terms of usage among our sample.  Perhaps just as interesting is that some of the traditional, popular tools such as Excel and SAS were not used as widely as R and Python. This might be food for thought for those data analysts who have thus far resisted learning how to code or moving beyond query-based data tools.”

Source: 2013 Data Science Salary Survey 

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A Very Short History of Data Science

data-science-jobs
Source: http://compsocsci.blogspot.com/

I’m in the process of researching the origin and evolution of data science as a discipline and a profession. Here are the milestones that I have picked up so far, tracking the evolution of the term “data science,” attempts to define it, and some related developments.  I would greatly appreciate any pointers to additional key milestones (events, publications, etc.).

[An updated version of this timeline is at Forbes.com]

1974 Peter Naur publishes Concise Survey of Computer Methods in Sweden and the United States. The book is a survey of contemporary data processing methods that are used in a wide range of applications. It is organized around the concept of data as defined in the IFIP Guide to Concepts and Terms in Data Processing, which defines data as “a representation of facts or ideas in a formalized manner capable of being communicated or manipulated by some process.“ The Preface to the book tells the reader that a course plan was presented at the IFIP Congress in 1968, titled “Datalogy, the science of data and of data processes and its place in education,“ and that in the text of the book, ”the term ‘data science’ has been used freely.” Naur offers the following definition of data science: “The science of dealing with data, once they have been established, while the relation of the data to what they represent is delegated to other fields and sciences.”

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Mingsheng Hong: The Data Scientist is the New Product Manager

Boston’s new data science-related meetup, The Data Scientist, got off to a great start yesterday with a presentation titled “The Scientist, The Team and The Purpose,” entertainingly delivered by Mingsheng Hong, Chief Data Scientist at Hadapt.  

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