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Jozo Kovac
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  • Palo Alto, CA
  • United States
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Jozo Kovac's Discussions

What's relationship between Knowledge Discovery and Business Analytics?

Started Jul 30, 2010 0 Replies

Compare those definitions:"At an abstract level, the KDD field is concerned with the development of methods and techniques for making sense of data" ...vs."Business analytics (BA) refers to the…Continue

Tags: discovery, knowledge, analytics


Jozo Kovac's Page

Latest Activity

Jozo Kovac replied to Alex's discussion Preparing categorical data with a large amount of categories
"Hi Alex, that's tricky task. There are better expert than me but let me share some ideas for introduction. For regression it's great to have predictors with reasonable number of categories (lets say up to 20, depends on volume of data)…"
Feb 15, 2015
Jozo Kovac commented on Ian Morton's blog post Building a good predictive model for credit risk
"Great and very practical article! "
May 10, 2013
Jozo Kovac replied to Sandro Saitta's discussion Can we automate data mining?
"Nice one :)"
May 5, 2013
Jozo Kovac replied to KSK's discussion CLTV Model using SPSS Modeler??
"Hi Hema, it's a bit trickier in banking. There are more products, all with different value and life cycle.  This approach could work: 1. Define products in scope 2. Ask about data for all products preferably on customer level. 3. Data…"
Apr 30, 2013
Jozo Kovac replied to m n's discussion How to develop churn prediction model for telecom company?
"Great start! When you have this dataset then open your favorite DM tool (for example Orange, import data and train for example decision tree. You can simply predict what customer will churn in next 3…"
Apr 30, 2013
Jozo Kovac replied to KSK's discussion CLTV Model using SPSS Modeler??
"Hi, let me show one basic approach based on churn rate. Lets have data at least for 2 years. Average yearly churn rate  = percentage of active customers from year 1 who were active in year 2. If you know that you loose 10% customers yearly -…"
Apr 18, 2013
Jozo Kovac commented on Sandeep Kumar Srivastava's blog post Logistics regression-ROC curve
"Shape is important. You care about how "bads" are distributed. It helps you to: - Verify if you have enough degrees of freedom - Expain how good your model catches "bads" on both ends of curve - Choose right cut-off  -…"
Jun 15, 2012
Jozo Kovac replied to Sharath Dandamudi's discussion Computation of Weight of Evidence when either the number of bads or goods in a class of a variable is 0
"Exactly as you've written - it's undefined for some categories. Such categories can't be used by logistic regression as well. You have several options: - discard attributes having such categories - merge categories so none of them…"
Oct 18, 2011
Jozo Kovac replied to Sharath Dandamudi's discussion Pros and cons of Dummy variable vs WoE approach for variables in Model building
"I understand well. It's about terminology. WoE=Weight of Evidence is metrics and has own formula. Dummy variable is binary flag created from categorical variable with more than 2 categories.    And again - simpler model is better. If…"
Oct 11, 2011
Jozo Kovac replied to Sharath Dandamudi's discussion Pros and cons of Dummy variable vs WoE approach for variables in Model building
"First - you can compute WoE for both dummy and categorical variable, they aren't competitors. Second - dummies lower degrees of freedom, produce simpler models and simpler is better according Occam's razor. And maybe also less sensitive to…"
Oct 10, 2011
Jozo Kovac commented on Vincent Granville's blog post Identifying the number of clusters: finally a solution
"Nice idea. # of clusters unveiled. Good you still keep method for selection of right clustering dimensions for yourself. Otherwise everything would be automated and consultants may only start-up their hot-dog business. "
Oct 3, 2011
Jozo Kovac commented on Vincent Granville's blog post Two great ideas to create a much better search engine
"To protect your webpage from unwanted traffic you may just disable Alexa, Quantcast, etc. code for bad visits. So visitor can see his content and measurement tools aren't affected (display measure code only for good visits). If you block a…"
Sep 28, 2011
Jozo Kovac commented on Vincent Granville's blog post Two great ideas to create a much better search engine
"Vincent, can't you write set of rules what would handle a traffic from unwanted sources? e.g. IF HTTP_REFERRER like "' THEN dont_count_a_visit     "
Sep 28, 2011
Jozo Kovac replied to DEVANAND's discussion Improving the existing predictive model
"How have you built your model last year? Can't be the same methodology repeated on new data?"
Sep 28, 2011
Jozo Kovac commented on Capri's blog post Barriers to hiring analytic people
"Vincent you are right, with proper skills analytics expert can become enterprenuer.  But who are his customers?  Small companies may have troubles to pay his rates. Large may not want to do business with him, if he's not well known…"
Sep 21, 2011
Jozo Kovac commented on Capri's blog post Creativity vs. Analytics: Are These Two Skills Incompatible?
"Analytics goes with Sales. In consulting business you have to support sales if you want to work on good project. Otherwise your sales rep. friends can sell nothing or something really bad. "
Sep 21, 2011

Profile Information

Short Bio:
data miner and entrepreneur
My Website or LinkedIn Profile (URL):
Field of Expertise:
Business Analytics, Predictive Modeling, Data Mining, Marketing Databases, Web Analytics, Statistical Consulting, Artificial Intelligence
Years of Experience in Analytical Role:
Professional Status:
Director, Consultant
Finding a New Position, Networking, New Venture, Recruiting
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Jozo Kovac's Blog

Predictive Analytics in Campaign Management

Posted on May 7, 2013 at 7:00pm 0 Comments

One of the most popular application of predictive analytics is optimization of marketing campaign management. I've implemented it several times for clients in four different industries and here is my solution.

Introduction to campaign management

Marketing departments are usually responsible for management the marketing campaigns. Campaigns always have some triggers - may be planned, triggered by customer events and various alerts. Campaigns are run for a…


Comment Wall (3 comments)

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At 2:55am on November 26, 2009, Steffen Springer said…

I browsed some of your contributions and I just wanted to say that I like your creative style of thinking. This community needs more Technicals like you and less managers or recruiters. Respect !


At 10:35am on November 24, 2009, D. L. von Kleeck said…
J. K., congradts on the IBM/SPSS deal.
DLvK of
At 9:01am on November 24, 2009, Yi-Chun Tsai said…
Thanks for adding me as a friend.

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