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Operations on lists in SAS/IML
To get better at something, you need to practice. That maxim applies to sports, music, and programming. If you want to be a better programmer, you need to write many programs. This article provides an example of forming the intersection of items in a SAS/IML list. It then provides several
Little Life Hacks: Oil Pulling
I had heard of oil pulling before starting naturopathy school but as we dove into the world of oral health, I became fascinated with incorporating ancestral methods into modern life. We learned about the history, how it promotes a clean mouth (which is the entry system to our gut) and
Artificial intelligence: regulation for self-protection AI#41
Discuss with Danilo McGarry (Member of the EU AI Alliance), Jacques Ludik (Author of Democratizing Artificial Intelligence to Benefit Everyone), Thomas Keil (SAS)
Copulas and multivariate distributions with normal marginals
After my recent articles on simulating data by using copulas, many readers commented about the power of copulas. Yes, they are powerful, and the geometry of copulas is beautiful. However, it is important to be aware of the limitations of copulas. This article creates a bizarre example of bivariate data,
What does Florence Nightingale have to do with democratizing analytics?
We need, in other words, to democratise analytics in the true sense of the word, by making them accessible to everyone.
10 data science job statistics that will blow your mind
In 2012, Data Scientist was dubbed the sexiest job of the 21st century by Harvard Business Review and it is one of the most in-high demand jobs in the world. Data has become a key part of every organization as technology flourishes. As the world become increasingly digitized, businesses are
Las aseguradoras y la mejora de la detección del fraude
Las aseguradoras afrontan desde hace tiempo una continua batalla contra diferentes tipos de fraude. Fraude en los siniestros, fraude en la suscripción de póliza, ciberataques, fraude interno, etc. En Estados Unidos, un estudio de la Coalition Against Insurance Fraud lo estima en un total de 80.000 millones de dólares. El
SAS can turn your world upside down!
Who's to say that 'north' should always be at the top of a map? Perhaps in certain situations, you might want 'south' (or some other direction) to be at the top. Perhaps you're one of our crazy Australian customers who looks at the world a little differently. Well, whatever the
Old-fashioned hospitality and new-fangled analytics
If you’ve ever traveled, you know the excitement of getting to explore a whole new place. After a year of quarantine, people are desperate for that feeling again. As Covid-19 restrictions lift, travel companies need to be prepared for the substantial amount of customer data that will become available. With
Compare computational methods for least squares regression
In a previous article, I discussed various ways to solve a least-square linear regression model. I discussed the SWEEP operator (used by many SAS regression routines), the LU-based methods (SOLVE and INV in SAS/IML), and the QR decomposition (CALL QR in SAS/IML). Each method computes the estimates for the regression
Preview of Foresight #62 (2021-Q3)
Following is Editor Len Tashman's preview of the new issue of Foresight: The International Journal of Applied Forecasting. Preview of Foresight #62 (2021:Q3) This 62nd issue of Foresight has been heavily “infected” by the COVID pandemic. Stephan Kolassa’s book review of Resurrecting Retail by Doug Stephens raises the question of whether the
The QR algorithm for least-squares regression
In computational statistics, there are often several ways to solve the same problem. For example, there are many ways to solve for the least-squares solution of a linear regression model. A SAS programmer recently mentioned that some open-source software uses the QR algorithm to solve least-squares regression problems and asked
The race for digital supremacy among manufacturers
How do I stack up in terms of digital maturity against my manufacturing peers? This is a question that I have been asked many times. The fear of missing out creates unbearable pain. Trade wars and the COVID-19 pandemic exposed some of the manufacturing wounds: tight margins, supply chain risks,
Plagues and locusts ... or is that cicadas?
I hope you're all doing well, in this year of plagues and locusts! I'm sure I don't even need to mention which plague I'm talking about. But what about the locusts? Are you up on your entomological studies? Follow along, and see if you really know what locusts are... Locusts
Save time and effort through automation of model validation and monitoring
One of the lesser-known effects of COVID-19 has been on analytical risk models. Around the world, the pandemic has created a new reality. The situation became so unpredictable that financial institutions’ risk models lost their ability to make accurate predictions. Past performance, it turned out, was very definitely not a
Simulate multivariate correlated data by using PROC COPULA in SAS
In general, it is hard to simulate multivariate data that has a specified correlation structure. Copulas make that task easier for continuous distributions. A previous article presented the geometry behind a copula and explained copulas in an intuitive way. Although I strongly believe that statistical practitioners should be familiar with
Tips for parallel processing in CASL
This is the second post in a series covering parallel processing in SAS Viya. The first post served as an introduction to parallel processing. It covered parallel processing uses in data science and the SAS Viya products that facilitate it. There are countless opportunities for using parallel processing within data
3 ways industries are using AI-powered decisions
Having the ability to know what the best decision is in any given scenario sounds like a superpower. What may surprise you is that this “superpower” already exists. SAS calls it intelligent decisioning. Decisioning is a powerful tool in the business world. It is useful to both the company and
Size does not matter on the transformation journey
Assisto Consulting is a management consulting firm delivering analytical and operational solutions for banks and multiple other sectors with a strong focus on financial technology and delivering its tailor-made business solutions. Its partners are all experienced banking professionals with skills in risk management, finance, business development, and marketing, and of
An introduction to simulating correlated data by using copulas
Do you know what a copula is? It is a popular way to simulate multivariate correlated data. The literature for copulas is mathematically formidable, but this article provides an intuitive introduction to copulas by describing the geometry of the transformations that are involved in the simulation process. Although there are
Awarding excellence in innovation
To successfully adapt and reinvent business decisions amid the uncertainty of the past year, organizations have leaned on support from their partner ecosystems. Together, SAS and its SAS Partner community have collaborated to find new answers to customers' toughest challenges and to drive innovation and digital transformation. In honor of this,
Dalla digital disruption alla digital delivery
Sopra Steria è una società di consulenza, servizi digitali e sviluppo software con sede a Parigi. È stata costituita nel 2014 in seguito alla fusione di Sopra e Steria, due società di servizi digitali e software. Ho incontrato Roberto Balzerani, Director Public Sector, Energy & Telco Italy, per discutere delle
3 ways grocers can get healthier margins on fresh foods with analytics
Hippocrates once said, “Let food be thy medicine.” For food vendors, this advice could be communicated another way: Stock more fresh fruit, protein and vegetables. The periphery of the grocery store has led in the expansion of revenues – namely within produce, but also spanning seafood, bakery products and ready-to-eat
Compute 2-D cumulative sums and ogives
A recent article about how to estimate a two-dimensional distribution function in SAS inspired me to think about a related computation: a 2-D cumulative sum. Suppose you have numbers in a matrix, X. A 2-D cumulative sum is a second matrix, C, such that the C[p,q] gives the sum of
Way forward into the "new normal"
“We live in disruptive times… where the only constant is a change” – this statement seems very accurate to the situation we face today. The funny thing is that this is a quote from an ancient philosopher Heraclitus of Efez, who had said it almost 2500 years ago! The “new
Mapping the transformation journey for manufacturers
This is part two of a two-part series on digital transformation for manufacturers, where we explore the real risk of not digitally transforming and the journey that manufacturers are undertaking to capitalize on the opportunity to increase revenue, profit, and operational effectiveness. You can read more in my first blog
Artificial Intelligence: 10 Herausforderungen für die Zukunft
"Wem die Daten gehören, ist die falsche Frage. Wer die Daten zu welchem Zweck nutzen darf, wäre doch richtiger."
Avoiding the digital transformation technology trap
In a world increasingly characterized by digital economies and disruption, every market disturbance exponentially widens the business agility gap between the less digitally evolved and those companies that have demonstrated innovation leadership through digital transformation. For those that are not transforming with urgency, the negative consequences will become compounded to