A Data Science Central Community

Can anyone provide insight on the merits/limitations of using

1)Data Mining/ Modeling tools via SQL Analysis Services

versus

2) SPSS Modeler/ Decision Management

My objective is to combine multiple data sources to model revenue by location and product. I am also ...

posted 4 days ago

Ralph Winters 23 hours ago • If you are familiar with SPSS, you will find SSAS a lot different. What kind of predictive analytics are you interested in doing? ... »

See all 21 comments »I have developed a basic customer attrition model that gives me attrition figures. Now I am trying to develop a predictive model that will let me know which customer (and when) is likely to attrite. As of now I am taking only two variables, monthly visits to the store and ...

posted 1 month ago

Joe Brandenburg 5 days ago • You need more than a 1 year pattern and two variables to predict attrition. This will give you many false positives because of the lack ... »

See all 33 comments »

posted 1 month ago

Matt Gershoff 13 days ago • Not sure about the structure here - how to fit in Generative methods or Graphical models? Maybe Bayesian methods get short shrift, SVM's ... »

See more »posted 1 month ago

Miguel Angel Gonzalez Cernuda 7 days ago • another way to detect the impact of your variables is including in a decision tree with chaid or whatever algorthym. This method provide ... »

See all 23 comments »List of links to free statistics programs.

posted 1 month ago

What's the one thing that most business decision makers don't understand or misunderstand about the business value of data quality?

posted 1 month ago

Cullen Hagan 1 month ago • Definitely agree with Abd and Luis. Many executives seem to view data as magically ... »

See all 7 comments »I'm looking for a recent text book regarding text mining, that has a good statistical outlook and focus while giving a good overall picture of the subject.

I have noticed a lot of the top books recommended on Amazon, tend to have a heavy computer science focus – especially ...

posted 4 days ago

Vincent Granville 17 hours ago • See also: Handbook of Natural Language Processing, by N. Indurkhya and F. Damerau, CRC Press. 678 pages.

See all 5 comments »Is it possible to use a decision tree algorithm to predict a numeric target? If yes, how would you evaluate for the effectiveness of the model with a numeric outcome in a decision tree?

posted 1 day ago

Ralph Winters 22 hours ago • Lift charts will work for regression trees. Just do a search for "regression tree lift chart" and you can find a few examples using ... »

See all 4 comments »In my line of work, pharmaceutical drug development, analyses that may (or may not) be accepted by the Food and Drug Adminstration (FDA), must (no ifs/ands/or buts) be planned,in advance of unblinding of data.

I appreciate in advance the blinded data setting may not seem to ...

posted 13 days ago

Will Sutton 7 days ago • In the New Yorker, Jonah Lehrer has written an interesting article regarding this issue: http://www.newyorker.com/reporting/2010/12/13/1 ... »

See all 10 comments »If I wanted to summarize 2010 with a single fact, it would be a metric from Google: the keyword "analytics" has been growing exponentially fast (in popularity), topping by far keywords such as business intelligence, six sigma, data mining, and even cloud computing. At ...

posted 29 days ago

Hi Everyone,

I have come across different references and pow's among which:

- Data Mining and the Case for Sampling, from SAS, gives only the general 10% rule plus some talk about the nature and complexity of the analysis.

-Sample Size and Modeling Accuracy with ...

posted 1 month ago

I am wondering whether North Carolina is a good place for people in statistics to develop?

Any information will be highly appreciated! Thanks!

posted 1 month ago

Vincent Granville 23 days ago • Many biotech companies, SAS, three Universities + NISS located in the Research Triangle Park. My answer is yes, definitely.

See all 4 comments »Do you see a market for small independent consulting companies offering data-intensive modeling & simulation? What's the areas/industries you see as more promising?

posted 29 days ago

Geoffrey Kearney 13 days ago • Leo makes some very good points. There is an enormous market for business analytics and predictive analytics. I don't know that one ... »

See all 4 comments »Customers DNA is an association of people with expertise on Customer Insight & CRM aiming to bridge the gap between technology and its use

posted 1 month ago

Need to develop ROI model that demonstrates the performance of my organizations white paper and having trouble going beyond just the number of downloads we've received

posted 19 days ago

Ralph Winters 7 days ago • You need to specifically define what you mean by your whitepapers performance. People often incorporate ideas from white papers and you ... »

See all 5 comments »Hi every one,

I am new in these group, and it’s my first intervention:

I have a question about the analytical predicting models, how we can evaluate them ?, it’s a cost issue, because we have campaigns to start, and we can't just test it like that (throwing money), ...

posted 7 days ago

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