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Mark Pitts

Unlearning Our Old Data Ways

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Louis Watson
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Re: understanding what you don't know
Louis Watson   12/9/2012 4:46:31 PM
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" I'd argue that you have to know that you don't know everything going in. There's an exploratory nature to Big Data that many people don't understand. It's not a checklist. It's a journey."

 

@Philsimon   Well said and couldn't agree more.

Mark Pitts
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Re: BI (or reporting) as a platform for deploying analytic insight
Mark Pitts   12/9/2012 4:10:44 PM
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Hi Doug, It's good to hear from you.  Great point.  That "one version of the truth" idea is one of the most pernicious beliefs going.  What's the census in your hospital today?  Well, it depends on things like when you measure it, which systems you're sourcing from, and, perhaps most importantly, why you are asking the question.  I understand why people don't want different reports showing different numbers for that census, but there could be good reasons why they are different.  Perhaps the reports were intended to answer different questions, or they were sourced from different points in the life cycle.

One of my favorite quotes from the world of statistics is from George Box:

"All models are wrong, but some are useful."

My slightly tongue-in-cheek corollary to that is:

"All reports are wrong, but some are useful."

Reports involve measures of real-world events, and all measures are subject to error.

Doug_Dame
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Re: BI (or reporting) as a platform for deploying analytic insight
Doug_Dame   12/8/2012 2:04:55 AM
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Hey Mark et al:

The way I think of it is that (most of) B.I. is about delivering up WHAT THE ORGANIZATION ALREADY KNOWS IS IMPORTANT. The various B.I. architectures, tools and typically heavy IT processes that are familiar to us all were designed to do just that, quickly, efficiently, consistently, and repeatedly. If B.I. has a dominant (if misbegotten) motto, it's got to be "One version of the truth." Which is very telling, because a singular truth is only conceivably possible when looking at what's already happened. *

In contrast, (not-B.I.) analytics is primarily about DISCOVERING WHAT IS NOT KNOWN, or projecting what could plausibly happen in the future. There can be no singular truth about the future, too many things can happen. So much depends on what the butterflies in Brazil decide to do. Or a black swan.

So B.I. and traditional reporting allow an organization to manage reactively to what has already happened. And the need to do that will probably never go away. But exploratory/predictive analytics help the organization discover new things, see into the future, and manage more proactively in anticipation of things that are likely to happen. 

Mark's reference to a "data ecosystem" is a useful, evocative phrase. I'm going to try to remember that.

 

(* Just for fun, I challenge proponents of "one version of the truth" to explain why we have 1+19,999 different books describing and explaining the life of Abraham Lincoln.)

 

 

Mark Pitts
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Re: BI (or reporting) as a platform for deploying analytic insight
Mark Pitts   12/6/2012 9:30:26 PM
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@David.Pope - Great thoughts.  I think BI tools are a critical component of the big data ecosystem, and making the analytic result organic to the business process and easily consumable are a key part of the analytics value chain.  What I'm trying to do is broaden the horizons of those who don't understand there is something beyond star schemas, SQL, and OLAP cubes.

Mark Pitts
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Re: understanding what you don't know
Mark Pitts   12/6/2012 9:20:40 PM
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@philsimon - Thanks for your comment - it's good to hear from you.  I couldn't agree more regarding the exploratory nature of analytics.  The two adjectives I use most often are "exploratory" and "iterative."  You don't have to know everything going in, but you do have to be able to learn quickly and "connect-the-dots" across previous experience and other disciplines.

David.Pope@sas.com
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BI (or reporting) as a platform for deploying analytic insight
David.Pope@sas.com   12/6/2012 12:02:01 PM
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One of the main difficulties we all seem to continue to encounter is related to this mistaking BI and Analytics as being the same thing (thereby diluting the true business value derived when analytics really are used). I believe we can all agree that to be impactful analytic insight must be deployed into operation systems. From a technical perspective data scientists may rightly assume I am talking about how to run scoring (or the end result of developing a predictive model) in different systems/platforms etc... , however it has recently become more and more apparent to me that deploying analytics from more of a business perspective is in essence having the analytical based insight show up and be easily understood by others across an organization. This is where the problem comes in, because for the insight to show up and be understood it has to be in a "report" or in other words BI. This is where having to
"sell" analytic value becomes very important, because most end consumers associate the value of analytics in the BI based report they receive. The best way I believe to show someone the difference would be to show someone a report with true analytics baked in and then the same exact report with the analytical based insight REMOVED, then ask them which gives more value. In the case Mark mentioned regarding forecasting the problem is a bit more difficult because the reports may look exactly the same from a formatting perspective, they may both have numbers and then graphs based on those numbers, it's just the numbers and graphs based on analytics provide a more accurate end result.

philsimon
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understanding what you don't know
philsimon   12/6/2012 7:08:46 AM
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Good stuff, Mark.


I like this the most:

 

To be successful, you have to understand the domain very well. You have to understand the data extremely well. You have to understand information technology at an expert level. You have to understand the tools in your toolbox. And you have to understand how to put all of this together in a creative way to solve the problem at hand. It takes experimentation, curiosity, and creativity. That's what I believe the term "data scientist" implies more than anything else.

 

I'd argue that you have to know that you don't know everything going in. There's an exploratory nature to Big Data that many people don't understand. It's not a checklist. It's a journey.

Mark Pitts
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Re: The old and the new
Mark Pitts   12/5/2012 6:10:56 PM
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@BethSchulz - Thanks for your comment.  BI still has a place in the ecosystem, even for me.  The point I'm trying to make is that we have more than just BI in our toolbox these days, but many people I encounter limit their thinking to BI solutions.  When I say analytics, I'm referring to BI but also to much, much more.

BethSchultz
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The old and the new
BethSchultz   12/5/2012 9:50:54 AM
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Mark, interesting points you raise here. Let me start with this one: "I sometimes think that when I say the word "analytics" to most audiences, their brains translate the word into "business intelligence," with visions of OLAP cubes and KPI dashboards dancing in their heads. Repeat after me: text analytics, neural networks, nonlinear optimization, simulation, bootstrapping. Please, please don't show me another pretty BI presentation tool and ask me if it will meet my analytic needs. Please." Is this to say at your level BI isn't for you or that at any level BI isn't for a company any longer -- that it must advance its thinking? 

Noreen Seebacher
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Silver
Noreen Seebacher   12/5/2012 8:59:43 AM
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Nate Silver has already inspired a "drunk Nate Silver" meme on Twitter, like this tweet from @jfruh: "Drunk Nate Silver waits 20 minutes for the G train, nods silently when it arrives, walks out of the station."

When asked about it, the real Silver said:

NATE SILVER: If only people knew the real drunk Nate Silver. I'm not so dark, necessarily. I just get into stupid arguments about sports with my friends. It's one thing when you have yourself, but it's another thing when you start to symbolize a movement and you don't really have control over it in a certain sense.

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