Category Archives: Data Science

Smart Cities at the Nexus of Emerging Data Technologies and You

One of the most significant characteristics of the evolving digital age is the convergence of technologies. That includes information management (databases), data collection (big data), data storage (cloud), data applications (analytics), knowledge discovery (data science), algorithms (machine learning), transparency (open data), computation (distributed computing: e.g., Hadoop), sensors (internet of things: IoT), and API services (microservices, containerization). One more dimension in this pantheon of tech, which is the most important, is the human dimension. We see the human interaction with technology explicitly among the latest developments in digital marketing, behavioral analytics, user experience, customer experience, design thinking, cognitive computing, social analytics, and (last, but not least) citizen science.

Citizen Scientists are trained volunteers who work on authentic science projects with scientific researchers to answer real-world questions and to address real-world challenges (see discussion here). Citizen Science projects are popular in astronomy, medicine, botany, ecology, ocean science, meteorology, zoology, digital humanities, history, and much more. Check out (and participate) in the wonderful universe of projects at the Zooniverse ( and at

In the data science community, we have seen activities and projects that are similar to citizen science in that volunteers step forward to use their skills and knowledge to solve real-world problems and to address real-world challenges. Examples of this include machine learning competitions and the Data Science Bowl (sponsored each year since 2014 by Booz Allen Hamilton, and hosted by Kaggle). These “citizen science” projects are not just for citizens who are untrained in scientific disciplines, but they are dominated by professional and/or deeply skilled data scientists, who volunteer their time and talents to help solve hard data challenges.

The convergence of data technologies is leading to the development of numerous “smart paradigms”, including smart highways, smart farms, smart grid, and smart cities, just to name a few. By combining this technology convergence (data science, IoT, sensors, services, open data) with a difficult societal challenge (air quality in urban areas) in conjunction with community engagement (volunteer citizen scientists, whether professional or non-professional), the U.S. Environmental Protection Agency (EPA) has knitted the complex fabric of smart people, smart technologies, and smart problems into a significant open competition: the EPA Smart City Air Challenge.

The EPA Smart City Air Challenge launched on August 30, 2016. The challenge is open for about 8 weeks. This is an unusually important and rare project that sits at that nexus of IoT, Big Data Analytics, and Citizen Science. It calls upon clever design thinking at the intersection of sensor technologies, open data, data science, environment science, and social good.

Open data is fast becoming a standard for public institutions, encouraging partnerships between governments and their constituents. The EPA Smart City Air Challenge is a great positive step in that direction. By bringing together expertise across a variety of domains, we can hope to address and fix some hard social, environmental, energy, transportation, and sustainability challenges facing the current age. The challenge competition will bring forward best practices for managing big data at the community level. The challenge encourages communities to deploy hundreds of air quality sensors and to make their data public. The resulting data sets will help communities to understand real-time environmental quality, what are the driving factors in air quality change (including geographic features, urban features, and human factors), to assess which changes will lead to better outcomes (including social, mobile, transportation, energy use, education, human health, etc.), and to motivate those changes at the grass roots local community level.

The EPA Smart City Air Challenge encourages local governments to form partnerships with sensor manufacturers, data management companies, citizen scientists, data scientists, and others. Together they’ll create strategies for collecting and using the data. EPA will award prizes of up to $40,000 to two communities based on their strategies, including their plans to share their data management methods so others can benefit. The prizes are intended to be seed money, so the partnerships are essential.

After receiving awards for their partnerships, strategies and designs, the two winning communities will have a year to start developing and implementing their solutions based on those winning designs. After that year, EPA will then evaluate the accomplishments and collaboration of the two winning communities. Based upon that evaluation, EPA may then award up to an additional $10,000 to each of the two winning communities.

The EPA Smart City Air Challenge is open until October 28, 2016. The competition is for developers and scientists, for data lovers and technology lovers, for startups and for established organizations, for society and for you. Join the competition now! For more information, visit the Smart City Air Challenge website at, or write to

Spread the word about EPA’s Smart City Air Challenge — big data, data science, and IoT for societal good in your communities!

Thanks to Ethan McMahon @mcmahoneth for his contributions to this article and to the EPA Smart City Air Challenge.

Follow Kirk Borne on Twitter @KirkDBorne

Discovering and understanding patterns in highly dimensional data

Dimensionality reduction is a critical component of any solution dealing with massive data collections. Being able to sift through a mountain of data efficiently in order to find the key descriptive, predictive, and explanatory features of the collection is a fundamental required capability for coping with the Big Data avalanche. Identifying the most interesting dimensions of data is especially valuable when visualizing high-dimensional (high-variety) big data.

There is a “good news, bad news” angle here. First, the bad news: the human capacity for seeing multiple dimensions is very limited: 3 or 4 dimensions are manageable; 5 or 6 dimensions are possible; but more dimensions are difficult-to-impossible to assimilate. Now for the good news: the human cognitive ability to detect patterns, anomalies, changes, or other “features” in a large complex “scene” surpasses most computer algorithms for speed and effectiveness. In this case, a “scene” refers to any small-n projection of a larger-N parameter space of variables.

In data visualization, a systematic ordered parameter sweep through an ensemble of small-n projections (scenes) is often referred to as a “grand tour”, which allows a human viewer of the visualization sequence to see quickly any patterns or trends or anomalies in the large-N parameter space. Even such “grand tours” can miss salient (explanatory) features of the data, especially when the ratio N/n is large.

Consequently, a data analytics approach that combines the best of both worlds (machine algorithms and human perception) will enable efficient and effective exploration of large high-dimensional data. One such approach is to apply Computer Vision algorithms, which are designed to emulate human perception and cognitive abilities. Another approach is to generate “interestingness metrics” that signal to the data end-user the most interesting and informative features (or combinations of features) in high-dimensional data. A specific example of the latter is latent (hidden) variable discovery.

Latent variables are not explicitly observed but are inferred from the observed features, specifically because they are the variables that deliver the all-important (but sometimes hidden) descriptive, predictive, and explanatory power of the data set. Latent variables can also be concepts that are implicitly represented by the data (e.g., the “sentiment” of the author of a social media posting).  

Because some latent variables are “observable” in the sense that they can be generated through a “yet to be discovered” mathematical combination of several of the measured variables, these are therefore an obvious example of dimension reduction for visual exploration of large high-dimensional data.

Latent (Hidden) Variable Models are used in statistics to infer variables that are not observed but are inferred from the variables that are observed. Latent variables are widely used in social science, psychology, economics, life sciences and machine learning. In machine learning, many problems involve collection of high-dimensional multivariate observations and then hypothesizing a model that explains them. In such models, the role of the latent variables is to represent properties that have not been directly observed.

After inferring the existence of latent variables, the next challenge is to understand them. This can be achieved by exploring their relationship with the observed variables (e.g., using Bayesian methods) . Several correlation measures and dimensionality reduction methods such as PCA can be used to measure those relationships. Since we don’t know in advance what relationships exist between the latent variables and the observed variables, more generalized nonparametric measures like the Maximal Information Coefficient (MIC) can be used.

MIC has become popular recently, to some extent because it provides a straightforward R-squared type of estimate to measure dependency among variables in a high-dimensional data set.  Since we don’t know in advance what a latent variable actually represents, it is not possible to predict the type of relationship that it might possess with the observed variables. Consequently, a nonparametric approach makes sense in the case of large high-dimensional data, for which the interrelationships among the many variables is a mystery. Exploring variables that possess the largest values of MIC can help us to understand the type of relationships that the latent variables have with the existing variables, thereby achieving both dimension reduction and a parameter space in which to conduct visual exploration of high-dimensional data.

The techniques described here can help data end-users to discover and understand data patterns that may lead to interesting insights within their massive data collections.

Follow Kirk Borne on Twitter @KirkDBorne

The Shuttle Challenger Disaster: Reflections and Connections to Data Science

The explosion of the space shuttle Challenger on Jan. 28, 1986, remains one of the worst accidents in the history of the American space program. Two other major fatal space program catastrophes also occurred within a few calendar days of the Shuttle Challenger disaster date: the Apollo 1 fire on January 27, 1967 that killed 3 astronauts, and the Shuttle Columbia disintegration on February 1, 2003 that killed 7 astronauts.

I shared some personal reflections of the Challenger event and its connections to data science in two articles. Here are excerpts from those two publications:

(1) Absence of Evidence is not the same as Evidence of Absence

In the era of big data, we easily forget that we haven’t yet measured everything. Even with the prevalence of data everywhere, we still haven’t collected all possible data on a particular subject. Consequently, statistical analyses should be aware of and make allowances for missing data (absence of evidence), in order to avoid biased conclusions. Conversely, “evidence of absence” is a very valuable piece of information, if you can prove it. Scientists have investigated the importance of these concepts in the evaluation of substance abuse education programs. They find that even though the distinctions between the two concepts (“evidence of absence” versus “absence of evidence “) are important, some policy decisions and societal responses to important problems should move forward anyway. This is an atypical case.

Usually the distinctions between the two concepts (Absence of Evidence versus Evidence of Absence) are significant influencers in decision-making and in the advancement of an area of research.

For example, I once suggested to a major astronomy observatory director that we create a database of things searched for (with his telescopes) but never found – the EAD: Evidence of Absence Database. He liked the idea (as a tool to help minimize redundant usage of his facilities for duplicate false searches in cases where we already have clear evidence of absence), but he didn’t offer to pay for it. Here is one science paper that has dramatically understood this concept: “Can apparent superluminal neutrino speeds be explained as a quantum weak measurement?” The paper’s full complete abstract: “Probably not.”

A more dramatic and ruinous example of a failure to appreciate this statistical concept is the NASA Shuttle Challenger disaster in 1986, when engineers assumed that the lack of evidence of O-ring failures during cold weather launches was equivalent to evidence that there would be no O-ring failure during a cold-weather launch. In this case, the consequences of faulty statistical reasoning were catastrophic. This is an extreme case that clearly demonstrates that “Absence of Evidence is not the same as Evidence of Absence” is an important statistical truism that we must never forget in the era of big data.

(read my full article at

(2) A Growth Hacker’s Journey – At the right place at the right time

A few months after my arrival at the Hubble Telescope Science Institute in 1985, tragedy struck! In January 1986, the Shuttle Challenger exploded 78 seconds after launch, killing all 7 astronauts on board. As a young person who dreamed of working in astronomy and space sciences since I was 9 years old, I was devastated. It took weeks for the staff to recover from the trauma of that horrific day. To this day, I still get choked up when I watch the recorded video footage of the event. Three things became very clear during those after-months:

  • The Shuttle launches would not resume for several years (hence, the Hubble Telescope would be grounded for all those years) while NASA fixed the problems that led to the Challenger catastrophe, which meant that the Hubble team of scientists and engineers had a lot of years to evaluate and improve all of the telescope systems.
  • One of the systems that was in significant need of improvement was the administrator-oriented Hubble Data Management System, which was previously designed primarily for data management by data system administrators and not designed so much for scientist-friendly data access, exploration, and discovery — hence, during those post-Challenger years, fresh designs and plans were developed for a new “top of the line” scientist-oriented user-friendly Hubble Science Data Archive.
  • Another system was identified as needing total overhaul, even rewriting the entire code base from scratch, and that was the scientific proposal entry, processing, and reporting system — they needed someone new to do the job, someone with a fresh perspective, with database skills, user interface skills, programming skills, and strong familiarity with astronomy. Guess who satisfied all of those constraints?

(read my full article at

Follow Kirk Borne on Twitter @KirkDBorne


The Definitive Q&A Guide for Aspiring Data Scientists

I was asked five questions by Alex Woodie of Datanami for his article, “So You Want To Be A Data Scientist”. He used a few snippets from my full set of answers. The longer version of my answers provided additional advice. For aspiring data scientists of all ages, I provide in my article at MapR the full, unabridged version of my answers, which may help you even more to achieve your goal.  Here are Alex’s questions. (Note: I paraphrase the original questions in quotes below.)

1. “What is the number one piece of advice you give to aspiring data scientists?”

2. “What are the most important skills for an aspiring data scientist to acquire?”

3. “Is it better for a person to stay in school and enroll in a graduate program, or is it better to acquire the skills on-the-job?”

4. “For someone who stays in school, do you recommend that they enroll in a program tailored toward data science, or would they get the requisite skills in a ‘hard science’ program such as astrophysics (like you)?”

5. “Do you see advances in analytic packages replacing the need for some of the skills that data scientists have traditionally had, such as programming skills (Python, Java, etc.)?”

Find all of my answers at “The Definitive Q&A for Aspiring Data Scientists“.

Follow Kirk Borne on Twitter @KirkDBorne

Are Your Predictive Models like Broken Clocks?

A wise philosopher (or comedian) once said, “Even a broken clock is right twice a day.” That same statement might also apply to some predictive models. Since prediction is about the future (usually), then random chance (like broken clockwork) may allow our model to be right occasionally (just by accident). The important step in the data science process that aims to reduce the danger of this occurring is the all-important cross-validation phase (or model-testing phase, which uses an independent data set). This phase is devoted to validating that our model works accurately on previously unseen data that were not used in the model training (model-building) phase.

Another way of characterizing this phase can be found in the field of System Engineering: V&V (Verification and Validation). In the first phase (verification), we verify that the system was built correctly (according to a set of requirements and specifications). In the second phase (validation), we validate that we built the correct system (consistent with the operational needs that the end-user, customer, or client expects the system to satisfy). We sometimes say it this way: (1) in verification, we ask “Did we build the system right?”; and (2) in validation, we ask “Did we build the right system?”

Applying the V&V system engineering principle to data science means that we see model-testing as a two-step process. First, we verify that the model is a logical consequent of the input data used to train the model. Second, we validate that the model remains useful, accurate, and robust when applied to previously unseen data. Any data scientist who participates in Kaggle competitions understands and “lives” this process. It is often the case that our first data science model will do a great job on the “seen” data set (i.e., verification by using a “broken clock” that is right on occasion), but the model then performs poorly on the “unseen” data set. A model that does well on both data sets is a winning model (maybe not in every Kaggle competition, but certainly in real-world usage).

Using the same data set both to validate a model and to train the model would be the data science equivalent of “circular reasoning“. This will often lead to “overfitting“, where the initial model is incorrectly trained to reproduce every variation, bump, wiggle, nuance, and noisy deviation in the training data set, thus falsely exaggerating the importance of those fluctuations. “Complexity” describes our world, but it shouldn’t describe our models.

The other extreme in model-building can be just as bad: underfitting (or bias) introduced by using too few explanatory variables to model the behaviors seen in our data set. I like to believe that Albert Einstein understood data science modeling very well when he said “Everything should be made as simple as possible, but not simpler.” Building an excessively complex model (with too many parameters that follow the noise fluctuations in our data) is like putting too much confidence in a broken clock (“it’s exactly right… some of the time!”). George Box warned us to have a little humility in the face of complex data (and a complex world): “All models are wrong, but some are useful.”

Therefore, when faced with highly complex (high-variety) big data, we are also faced with how to choose the “right model”. We should apply the “Goldilocks principle” — choose a model that is not “too good” and not too bad (i.e., the model works well enough on the training data set and on the test data set).

Follow Kirk Borne on Twitter @KirkDBorne



(Source for graphic:

Definitive Guides to Data Science and Analytics Things

The Definitive Guide to anything should be a helpful, informative road map to that topic, including visualizations, lessons learned, best practices, application areas, success stories, suggested reading, and more.  I don’t know if all such “definitive guides” can meet all of those qualifications, but here are some that do a good job:

  1. The Field Guide to Data Science (big data analytics by Booz Allen Hamilton)
  2. The Data Science Capability Handbook (big data analytics by Booz Allen Hamilton)
  3. The Definitive Guide to Becoming a Data Scientist (big data analytics)
  4. The Definitive Guide to Data Science – The Data Science Handbook (analytics)
  5. The Definitive Guide to doing Data Science for Social Good (big data analytics, data4good)
  6. The Definitive Q&A Guide for Aspiring Data Scientists (big data analytics, data science)
  7. The Definitive Guide to Data Literacy for all (analytics, data science)
  8. The Data Analytics Handbook Series (big data, data science, data literacy by Leada)
  9. The Big Analytics Book (big data, data science)
  10. The Definitive Guide to Big Data (analytics, data science)
  11. The Definitive Guide to the Data Lake (big data analytics by MapR)
  12. The Definitive Guide to Business Intelligence (big data, business analytics)
  13. The Definitive Guide to Natural Language Processing (text analytics, data science)
  14. A Gentle Guide to Machine Learning (analytics, data science)
  15. Building Machine Learning Systems with Python (a non-definitive guide) (data analytics)
  16. The Definitive Guide to Data Journalism (journalism analytics, data storytelling)
  17. The Definitive “Getting Started with Apache Spark” ebook (big data analytics by MapR)
  18. The Definitive Guide to Getting Started with Apache Spark (big data analytics, data science)
  19. The Definitive Guide to Hadoop (big data analytics)
  20. The Definitive Guide to the Internet of Things for Business (IoT, big data analytics)
  21. The Definitive Guide to Retail Analytics (customer analytics, digital marketing)
  22. The Definitive Guide to Personalization Maturity in Digital Marketing Analytics (by SYNTASA)
  23. The Definitive Guide to Nonprofit Analytics (business intelligence, data mining, big data)
  24. The Definitive Guide to Marketing Metrics & Analytics
  25. The Definitive Guide to Campaign Tagging in Google Analytics (marketing, SEO)
  26. The Definitive Guide to Channels in Google Analytics (SEO)
  27. A Definitive Roadmap to the Future of Analytics (marketing, machine learning)
  28. The Definitive Guide to Data-Driven Attribution (digital marketing, customer analytics)
  29. The Definitive Guide to Content Curation (content-based marketing, SEO analytics)
  30. The Definitive Guide to Collecting and Storing Social Profile Data (social big data analytics)
  31. The Definitive Guide to Data-Driven API Testing (analytics automation, analytics-as-a-service)
  32. The Definitive Guide to the World’s Biggest Data Breaches (visual analytics, privacy analytics)

Follow Kirk Borne on Twitter @KirkDBorne


Outliers, Inliers, and Other Surprises that Fly from your Data

Data can fly beyond the bounds of our models and our expectations in surprising and interesting ways. When data fly in these ways, we often find new insights and new value about the people, products, and processes that our data sources are tracking. Here are 4 simple examples of surprises that can fly from our data:

(1) Outliers — when data points are several standard deviations from the mean of your data distribution, these are traditional data outliers. These may signal at least 3 possible causes: (a) a data measurement problem (in the sensor); (b) a data processing problem (in the data pipeline); or (c) an amazing unexpected discovery about your data items. The first two causes are data quality issues that must be addressed and repaired. The latter case (when your data fly outside the bounds of your expectations) is golden and worthy of deeper exploration.

(2) Inliers — sometimes your data have constraints (business rules) that are inviolable (e.g., Fraction of customers that are Male + Fraction of customers that are Female = 1). A simple business example would be: Profit = Revenue minus Costs. Suppose an analyst examines these 3 numbers (Profit, Revenue, Costs) for many different entries in his business database, and he finds a data entry that is near the mean of the distribution for each of those 3 numbers. It appears (at first glance) that this entry is perfectly normal (an inlier, not an outlier), but in fact it might violate the above business rule. In that case, there is definitely a problem with these numbers — they have “flown” outside the bounds of the business rule.

(3) Nonlinear correlations — fitting a curve y=F(x) through data for the purpose of estimating values of y for new values of x is called regression. This is also an example of Predictive Analytics (we can predict future values based upon a function that was learned from the historical training data). When using higher-order functions for F(x) (especially polynomial functions), we must remember that the curves often diverge (to extreme values) beyond the range of the known data points that were used to learn the function. Such an extrapolation of the regression curve could lead to predictive outcomes that make no sense, because they fly far beyond reasonable values of our data parameters.

(4) Uplift — when two events occur together more frequently than you would expect from random chance, then their mutual dependence causes uplift. Statistical lift is simply measured by: P(X,Y)/[P(X)P(Y)]. The numerator P(X,Y) represents the joint frequency of two events X and Y co-occurring simultaneously. The denominator represents the probability that the two events X and Y will co-occur (at the same time) at random. If X and Y are completely independent events, then the numerator will equal the denominator – in that case (mutual independence), the uplift equals 1 (i.e., no lift). Conversely, if there is a higher than random co-occurrence of X and Y, then the statistical lift flies to values that are greater than 1 — that’s uplift! And that’s interesting. Cases with significant uplift can be marketing gold for your organization: in customer recommendation engines, in fraud detection, in targeted marketing campaigns, in community detection within social networks, or in mining electronic health records for adverse drug interactions and side effects.

These and other such instances of high-flying data are increasingly challenging to identify in the era of big data: high volume and high variety produce big computational challenges in searching for data that fly in interesting directions (especially in complex high-dimensional data sets). To achieve efficient and effective discovery in these cases, fast automatic statistical modeling can help. For this purpose, I recommend that you check out the analytics solutions from the fast automatic modeling folks at

The Soft10 software package is trained to report automatically the most significant, informative and interesting dependencies in your data, no matter which way the data fly.

(Read the full blog, with more details for the 4 cases listed above, at:

Follow Kirk Borne on Twitter @KirkDBorne

Reach Analytics Maturity through Fast Automatic Modeling

The late great baseball legend Yogi Berra was credited with saying this gem: “The future ain’t what it used to be.” In the context of big data analytics, I am now inclined to believe that Yogi was very insightful — his statement is an excellent description of Prescriptive Analytics.

Prescriptive Analytics goes beyond Descriptive and Predictive Analytics in the maturity framework of analytics. “Descriptive” analytics delivers hindsight (telling you what did happen, by generating reports from your databases), and “predictive” delivers foresight (telling you what will happen, through machine learning algorithms). Going one better, “prescriptive” delivers insight: discovering so much about your application domain (from your collection of big data and information resources, through data science and predictive models) that you are now able to take the actions (e.g., set the conditions and parameters) needed to achieve a prescribed (better, optimal, desired) outcome.

So, if predictive analytics can use historical training data sets to tell us what will happen in the future (e.g., which products a customer will buy; where and when your supply chain will need replenishing; which vehicles in your corporate fleet will need repairs; which machines in your manufacturing plant will need maintenance; or which servers in your data center will fail), then prescriptive analytics can alter that future (i.e., the future ain’t what it used to be).

When dealing with large high-variety data sets, with many features and measured attributes, it is often difficult to build accurate models that are generally useful under a variety of conditions and that capture all of the complexities of the response functions and explanatory variables within your business application. In such cases, fast automatic modeling tools are needed. These tools can help to identify the minimum viable feature set for accurate predictive and prescriptive modeling. For this purpose, I recommend that you check out the analytics solutions from the fast automatic modeling folks at

The Soft10 software package is trained to observe quickly and report automatically the most significant, informative and explanatory dependencies in your data. Those capabilities are the “secret sauce” in insightful prescriptive analytics, and they coincide nicely with another insightful quote from Yogi Berra: “You can observe a lot by just watching.”

(Read the full blog at:

Predictive versus Prescriptive Analytics

Predictive Analytics (given X, find Y) vs. Prescriptive Analytics (given Y, find X)

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Fraud Analytics: Fast Automatic Modeling for Customer Loyalty Programs

It doesn’t take a rocket scientist to understand the deep and dark connection between big money and big fraud. One need only look at black markets for drugs and other controlled and/or precious commodities. But what about cases where the commodity is soft, intangible, and practically virtual? I am talking about loyalty and rewards programs.

A study by Colloquy (in 2011) estimated that the loyalty and rewards programs in the U.S. alone had an estimated outstanding value of $48 billion US dollars. This is “outstanding” value because it doesn’t carry tangible benefit until the rewards or loyalty points are cashed in, redeemed, or otherwise exchanged for something that you can “take to the bank”. In anybody’s book, $48 billion is really big value — i.e., big money rewards for loyal customers, and a big target for criminals seeking to defraud the rightful beneficiaries of these rewards.

The risk vs. reward equation in loyalty programs now has huge numbers on both sides of that equation. There’s great value for customers. There’s great return on investment for businesses seeking loyal customers. And that’s great bait to lure criminals into the game.

In the modern digital marketplace, it is now possible to manipulate payment systems on a larger scale, thereby defrauding the business of thousands of dollars in rewards points. The scale of the fraud could match the scale of the entire loyalty program for some firms, which would therefore bankrupt their supply of rewards for their loyal and faithful customers. This is a really big problem waiting to happen unless something is done about it.

The something that can be done about it is to take advantage of the fast predictive modeling capabilities for fraud detection that are enabled by access to more data (big data), better technology (analytics tools), and more insightful predictive and prescriptive algorithms (data science).

Fraud analytics is no silver bullet. It won’t rid the world of fraudsters and other criminals. But at least fast automatic modeling will give firms better defenses, more timely alerts, and faster response capabilities. This is essential because, in the digital era, it is not only business that is moving at the speed of light, but so also are the business disruptors.

Some simple use cases for fraud analytics within the context of customer loyalty reward programs can be found in the article “Where There’s Big Money, There’s Big Fraud (Analytics)“.

Payment fraud reaches across a vast array of industries: insurance (of all kinds), underwriting, social programs, purchasing and procurement, and now loyalty and rewards programs. Be prepared. Check out the analytics solutions from the fast automatic modeling folks at

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Blogging My Way Through Data Science, Big Data, and Analytics

I frequently write blog posts on other sites.  You can find those articles here (updated March 21, 2016):

I also write “one-off” blog posts, such as these examples:

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