The Future of AI in Dental Technology

As we develop more advanced technology, we begin to learn that artificial intelligence can have more and more of an impact on our lives and industries that we have gotten used to being the same over the past decades. One of those industries is dentistry. In your lifetime, you’ve probably not seen many changes in technology, but a boom around artificial intelligence and technology has opened the door for AI in dental technologies.

How Can AI Help?

Though dentists take a lot of pride in their craft and career, most acknowledge that AI can do some things that they can’t do or would make their job easier if they didn’t have to do. AI can perform a number of both simple and advanced tasks. Let’s take a look at some areas that many in the dental industry feel that AI can be of assistance.

Repetitive, Menial Tasks

The most obvious area that AI can help out when it comes to dentistry is with repetitive and menial simple tasks. There are many administrative tasks in the dentistry industry that can be sped up and made more cost-effective with the use of AI. If we can train a computer to do some of these tasks, we may be able to free up more time for our dentists to focus on more important matters and improve their job performance as well. One primary use of AI is virtual consultations that offices like Philly Braces are offering. This saves patients time when they come in as the Doctor already knows what the next steps in their treatment will be.

Using AI to do some basic computer tasks is already being done on a small scale by some, but we have yet to see a very large scale implementation of this technology. We would expect that to happen soon, with how promising and cost-effective the technology has proven to be.

Reducing Misdiagnosis

One area that many think that AI can help a lot in is misdiagnosis. Though dentists do their best, there is still a nearly 20% misdiagnosis rate when reading x-rays in dentistry. We like to think that a human can read an x-ray better, but this may not be the case. AI technology can certainly be trained to read an x-ray and there have been some trials to suggest that they can do it better and identify key conditions that we often misread.

A world with AI diagnosis that is accurate and quicker will save time, money, and lead to better dental health among patients. It hasn’t yet come to fruition, but this seems to be the next major step for AI in dentistry.

Artificial Intelligence Assistants

Once it has been demonstrated that AI can perform a range of tasks that are useful to dentists, the next logical step is to combine those skills to make a fully-functional AI dental assistant. A machine like this has not yet been developed, but we can imagine that it would be an interface that could be spoken to similar to Alexa. The dentist would request vital information and other health history data from a patient or set of patients to assist in the treatment process. This would undoubtedly be a huge step forward and bring a lot of computing power into the average dentist office.

Conclusion

It’s clear that AI has a bright future in the dental industry and has already shown some of the essential skills that it can help with in order to provide more comprehensive and accurate care to dental patients. Some offices like Westwood Orthodontics already use AI in the form of a virtual consult to diagnose issues and provide treatment options before patients actually step foot in the office. Though not nearly all applications that AI can provide have been explored, we are well on our way to discovering the vast benefits of artificial intelligence for both patients and practices in the dental healthcare industry.

Interview – Customer Data Platform, more than CRM 2.0?

Interview with David M. Raab from the CDP Institute

David M. Raab is as a consultant specialized in marketing software and service vendor selection, marketing analytics and marketing technology assessment. Furthermore he is the founder of the Customer Data Platform Institute which is a vendor-neutral educational project to help marketers build a unified customer view that is available to all of their company systems.

Furthermore he is a Keynote-Speaker for the Predictive Analytics World Event 2019 in Berlin.

Data Science Blog: Mr. Raab, what exactly is a Customer Data Platform (CDP)? And where is the need for it?

The CDP Institute defines a Customer Data Platform as „packaged software that builds a unified, persistent customer database that is accessible by other systems“.  In plainer language, a CDP assembles customer data from all sources, combines it into customer profiles, and makes the profiles available for any use.  It’s important because customer data is collected in so many different systems today and must be unified to give customers the experience they expect.

Data Science Blog: Is it something like a CRM System 2.0? What Use Cases can be realized by a Customer Data Platform?

CRM systems are used to interact directly with customers, usually by telephone or in the field.  They work almost exclusively with data that is entered during those interactions.  This gives a very limited view of the customer since interactions through other channels such as order processing or Web sites are not included.  In fact, one common use case for CDP is to give CRM users a view of all customer interactions, typically by opening a window into the CDP database without needing to import the data into the CRM.  There are many other use cases for unified data, including customer segmentation, journey analysis, and personalization.  Anything that requires sharing data across different systems is a CDP use case.

Data Science Blog: When does a CDP make sense for a company? It is more relevant for retail and financial companies than for industrial companies, isn´t it?

CDP has been adopted most widely in retail and online media, where each customer has many interactions and there are many products to choose from.  This is a combination that can make good use of predictive modeling, which benefits greatly from having more complete data.  Financial services was slower to adopt, probably because they have fewer products but also because they already had pretty good customer data systems.  B2B has also been slow to adopt because so much of their customer relationship is handled by sales people.  We’ve more recently been seeing growth in additional sectors such as travel, healthcare, and education.  Those involve fewer transactions than retail but also rely on building strong customer relationships based on good data.

Data Science Blog: There are several providers for CDPs. Adobe, Tealium, Emarsys or Dynamic Yield, just to name some of them. Do they differ a lot between each other?

Yes they do.  All CDPs build the customer profiles I mentioned.  But some do more things, such as predictive modeling, message selection, and, increasingly, message delivery.  Of course they also vary in the industries they specialize in, regions they support, size of clients they work with, and many technical details.  This makes it hard to buy a CDP but also means buyers are more likely to find a system that fits their needs.

Data Science Blog: How established is the concept of the CDP in Europe in general? And how in comparison with the United States?

CDP is becoming more familiar in Europe but is not as well understood as in the U.S.  The European market spent a lot of money on Data Management Platforms (DMPs) which promised to do much of what a CDP does but were not able to because they do not store the level of detail that a CDP does.  Many DMPs also don’t work with personally identifiable data because the DMPs primarily support Web advertising, where many customers are anonymous.  The failures of DMPs have harmed CDPs because they have made buyers skeptical that any system can meet their needs, having already failed once.  But we are overcoming this as the market becomes better educated and more success stories are available.  What’s the same in Europe and the U.S. is that marketers face the same needs.  This will push European marketers towards CDPs as the best solution in many cases.

Data Science Blog: What are coming trends? What will be the main topic 2020?

We see many CDPs with broader functions for marketing execution: campaign management, personalization, and message delivery in particular.  This is because marketers would like to buy as few systems as possible, so they want broader scope in each systems.  We’re seeing expansion into new industries such as financial services, travel, telecommunications, healthcare, and education.  Perhaps most interesting will be the entry of Adobe, Salesforce, and Oracle, who have all promised CDP products late this year or early next year.  That will encourage many more people to consider buying CDPs.  We expect that market will expand quite rapidly, so current CDP vendors will be able to grow even as Adobe, Salesforce, and Oracle make new CDP sales.


You want to get in touch with Daniel M. Raab and understand more about the concept of a CDP? Meet him at the Predictive Analytics World 18th and 19th November 2019 in Berlin, Germany. As a Keynote-Speaker, he will introduce the concept of a Customer Data Platform in the light of Predictive Analytics. Click here to see the agenda of the event.

 


 

Interview – Knowledge Graphs and Semantic Technologies

“It’s incredibly empowering when data that is clear and understood – what we call ‘beautiful data’ – is available to the data workforce.”

Juan F. Sequeda is co-founder of Capsenta, a spin-off from his research, and Senior Director of Capsenta Labs. He is an expert on knowledge graphs, semantic web, semantic & graph data management and (ontology-based) data integration. In this interview Juan lets us know how SMEs can create value from data, what makes the Knowledge Graph so important and why CDOs and CIOs should use semantic technologies.

Data Science Blog: If you had to name five things that apply to SMEs as well as enterprises as they are on their journey through digital transformation: What are the most important steps to take in order to create value from data?

I would state four things:

  1. Focus on the business problem that needs to be solved instead of the technology.
  2. Getting value out of your data is a social-technical problem. Not everything can be solved by technology and automation. It is crucial to understand the social/human aspect of the problems.
  3. Avoid boiling the ocean. Be agile and iterate.
  4. Recall that it’s a marathon, not a sprint. Hence why you shouldn’t focus on boiling the ocean.

Data Science Blog: You help companies to make their company data meaningfully and thus increase their value. The magic word is the knowledge graph. What exactly is a Knowledge Graph?

Let’s recall that the term “knowledge graph”, that is being actively used today, was coined by Google in a 2012 blogpost. From an industry point of view, it’s a term that represents data integration, where not just entities but also relationships are first class citizens. In other words, it’s data integration based on graphs. That is why you see graph database companies use the term knowledge graph instead of data integration.

In the academic circle, there is a “debate” on what the term “knowledge graph” means. As academics, it’s clear that we should always strive to have well defined terms. Nevertheless, I find it ironic that academics are spending time debating on the definition of a term that appeared in a (marketing) blog post 7 years ago! I agree with Simeon Warner on this: “I care about putting more knowledge in my graph, instead of defining what is a knowledge graph”.

Whatever definition prevails, it should be open and inclusive.

On a final note, it is paramount that we remember our history in order to avoid reinventing the wheel. There is over half a century of research results that has led us to what we are calling Knowledge Graphs today. If you are interested, please check out our upcoming ISWC 2019 tutorial “Knowledge Graphs: How did we get here? A Half Day Tutorial on the History of Knowledge Graph’s Main Ideas“.

Data Science Blog: Speaking of Knowledge Graphs: According to SEMANTiCS 2019 Research and Innovation Chair Philippe Cudre-Mauroux the next generation of knowledge graphs will capture more detailed information. Towards which directions are you steering with gra.fo?

Gra.fo is a knowledge graph schema (i.e ontology) collaborative modeling tool combined with google doc style features such as real-time collaboration, comments, history and search.

Designing a knowledge graph schema is just the first step. You have to do something with it! The next step is to map the knowledge graph schema to underlying data sources in order to integrate data.

We are driving Gra.fo to also be a mapping management system. We recently released our first mapping features. You now have the ability to import existing R2RML mapping. The next step will be to create the mappings between relational databases and the schema all within Gra.fo. Furthermore, we will extend to support mappings from different types of sources.

Finally, there are so many features that our users are requesting. We are working on those and will also offer an API in order to empower users to develop their own apps and features.

Data Science Blog: At Capsenta, you are changing the way enterprises model, govern and integrate data. Put in brief, how can you explain the benefits of using semantic technologies and knowledge technologies to a CDO or CIO? Which clients could you serve and how did you help them?

Business users need to answer critical business questions quickly and accurately. However, the frequent bottleneck is the lack of understanding of the large and complex enterprise databases. Additionally, the IT experts who do understand are not always available. The ultimate goal is to empower business users to access the data in the way they think of their domain.

This is where Knowledge Graphs come into play.

At Capsenta, we use our Knowledge Graph technology to bridge this conceptualization gap between the complex and inscrutable data sources and the business intelligence and data analytic tools that domain experts use to answer critical business questions. Our goal is to deliver beautiful data so the business users and data scientist can run with the data.

We are helping large scale enterprises in e-commerce, oil & gas and life science industries to generate beautiful data.

Data Science Blog: What are reasons for which Knowledge Graphs should be part of any corporate strategy?

Graphs are very easy for people to understand and express the complex relationships between concepts. Bubbles and lines between them (i.e. a graph!) is what domain experts draw on the whiteboard all the time. We have even had C-level executives look at a Knowledge Graph and immediately see how it expresses a portion of their business and even offer suggestions for additional richness. Imagine that, C-level executives participating in an ontology engineering session because they understand the graph.

This is in sharp contrast to the data itself, which is almost always very difficult to understand and overwhelming in scope. Critical business value is available in a subset of this data. A Knowledge Graph bridges the conceptual gap between a critical portion of the inscrutable data itself and the business user’s view of their world.

It’s incredibly empowering when data that is clear and understood – what we call “beautiful data” – is available to the data workforce.

Data Science Blog: Data-driven process analyzes require interdisciplinary knowledge. What advice would you give to a process manager who wants to familiarize her-/himself with the topic?

Domain experts/business users frequently use multiple words/phrases to mean the same thing and also a specific phrase can mean different things to different people. Also, the domain experts/business users speak a very different language than the IT database owners.

How can the business have clear, accurate answers when there’s inconsistency in what people mean and are thinking?

This is the social problem of getting everyone on the same page. We’ve seen Knowledge Graphs dramatically help with this problem. The exercise of getting people to agree upon what they mean and encoding it in an intuitive Knowledge Graph is very powerful.

The Knowledge Graph also brings the IT stakeholders into the process by clarifying exactly what data or, typically, complex calculations of data is the actual, accurate value for each and every business concept and relationship expressed in the Knowledge Graph.

It is crucial to avoid boiling the ocean. That is why we have designed a pay-as-you-go methodology to start small and provide value as quickly and accurately as possible. Ideally, the team has available what we call a “Knowledge Engineer”. This is someone who can effectively speak with the business users/domain experts and also nerd out with the database folks.

About SEMANTiCS Conference

SEMANTiCS is an established knowledge hub where technology professionals, industry experts, researchers and decision makers can learn about new technologies, innovations and enterprise implementations in the fields of Linked Data and Semantic AI. Founded in 2005 the SEMANTiCS is the only European conference at the intersection of research and industry.

This year’s event is hosted by the Semantic Web Company, FIZ Karlsruhe – Leibniz Institute for Information Infrastructure GmbH, Fachhochschule St. Pölten Forschungs GmbH, KILT Competence Center am Institut für Angewandte Informatik e.V. and Vrije Universiteit Amsterdam.

Interview: Does Business Intelligence benefit from Cloud Data Warehousing?

Interview with Ross Perez, Senior Director, Marketing EMEA at Snowflake

Read this article in German:
“Profitiert Business Intelligence vom Data Warehouse in der Cloud?”

Does Business Intelligence benefit from Cloud Data Warehousing?

Ross Perez is the Senior Director, Marketing EMEA at Snowflake. He leads the Snowflake marketing team in EMEA and is charged with starting the discussion about analytics, data, and cloud data warehousing across EMEA. Before Snowflake, Ross was a product marketer at Tableau Software where he founded the Iron Viz Championship, the world’s largest and longest running data visualization competition.

Data Science Blog: Ross, Business Intelligence (BI) is not really a new trend. In 2019/2020, making data available for the whole company should not be a big thing anymore. Would you agree?

BI is definitely an old trend, reporting has been around for 50 years. People are accustomed to seeing statistics and data for the company at large, and even their business units. However, using BI to deliver analytics to everyone in the organization and encouraging them to make decisions based on data for their specific area is relatively new. In a lot of the companies Snowflake works with, there is a huge new group of people who have recently received access to self-service BI and visualization tools like Tableau, Looker and Sigma, and they are just starting to find answers to their questions.

Data Science Blog: Up until today, BI was just about delivering dashboards for reporting to the business. The data warehouse (DWH) was something like the backend. Today we have increased demand for data transparency. How should companies deal with this demand?

Because more people in more departments are wanting access to data more frequently, the demand on backend systems like the data warehouse is skyrocketing. In many cases, companies have data warehouses that weren’t built to cope with this concurrent demand and that means that the experience is slow. End users have to wait a long time for their reports. That is where Snowflake comes in: since we can use the power of the cloud to spin up resources on demand, we can serve any number of concurrent users. Snowflake can also house unlimited amounts of data, of both structured and semi-structured formats.

Data Science Blog: Would you say the DWH is the key driver for becoming a data-driven organization? What else should be considered here?

Absolutely. Without having all of your data in a single, highly elastic, and flexible data warehouse, it can be a huge challenge to actually deliver insight to people in the organization.

Data Science Blog: So much for the theory, now let’s talk about specific use cases. In general, it matters a lot whether you are storing and analyzing e.g. financial data or machine data. What do we have to consider for both purposes?

Financial data and machine data do look very different, and often come in different formats. For instance, financial data is often in a standard relational format. Data like this needs to be able to be easily queried with standard SQL, something that many Hadoop and noSQL tools were unable to provide. Luckily, Snowflake is an ansi-standard SQL data warehouse so it can be used with this type of data quite seamlessly.

On the other hand, machine data is often semi-structured or even completely unstructured. This type of data is becoming significantly more common with the rise of IoT, but traditional data warehouses were very bad at dealing with it since they were optimized for relational data. Semi-structured data like JSON, Avro, XML, Orc and Parquet can be loaded into Snowflake for analysis quite seamlessly in its native format. This is important, because you don’t want to have to flatten the data to get any use from it.

Both types of data are important, and Snowflake is really the first data warehouse that can work with them both seamlessly.

Data Science Blog: Back to the common business use case: Creating sales or purchase reports for the business managers, based on data from ERP-systems such as Microsoft or SAP. Which architecture for the DWH could be the right one? How many and which database layers do you see as necessary?

The type of report largely does not matter, because in all cases you want a data warehouse that can support all of your data and serve all of your users. Ideally, you also want to be able to turn it off and on depending on demand. That means that you need a cloud-based architecture… and specifically Snowflake’s innovative architecture that separates storage and compute, making it possible to pay for exactly what you use.

Data Science Blog: Where would you implement the main part of the business logic for the report? In the DWH or in the reporting tool? Does it matter which reporting tool we choose?

The great thing is that you can choose either. Snowflake, as an ansi-Standard SQL data warehouse, can support a high degree of data modeling and business logic. But you can also utilize partners like Looker and Sigma who specialize in data modeling for BI. We think it’s best that the customer chooses what is right for them.

Data Science Blog: Snowflake enables organizations to store and manage their data in the cloud. Does it mean companies lose control over their storage and data management?

Customers have complete control over their data, and in fact Snowflake cannot see, alter or change any aspect of their data. The benefit of a cloud solution is that customers don’t have to manage the infrastructure or the tuning – they decide how they want to store and analyze their data and Snowflake takes care of the rest.

Data Science Blog: How big is the effort for smaller and medium sized companies to set up a DWH in the cloud? Does this have to be an expensive long-term project in every case?

The nice thing about Snowflake is that you can get started with a free trial in a few minutes. Now, moving from a traditional data warehouse to Snowflake can take some time, depending on the legacy technology that you are using. But Snowflake itself is quite easy to set up and very much compatible with historical tools making it relatively easy to move over.

Interview – The Importance of Machine Learning for the Data Driven Business

To become more data-driven, organizations must mature their analytics and automate more of their decision making processes for innovation and differentiation. Data science seems like the right approach, yet is a new and fast moving field that seems to have as many dead ends as it has high ways to value. Cloudera Fast Forward Labs, led by Hilary Mason, shows companies the way.

Alice Albrecht is a research engineer at Cloudera Fast Forward Labs.  She spends her days researching the latest and greatest in machine learning and artificial intelligence and bringing that knowledge to working prototypes and delivering concrete advice for clients.  Prior to joining Fast Forward Labs, Alice worked in both finance and technology companies as a practicing data scientist, data science leader, and – most recently – a data product manager.  In addition to teaching machines to do cool things, Alice is passionate about mentoring and helping others grow in their careers.  Alice holds a PhD from Yale in cognitive neuroscience where she studied how humans summarize sensory information from the world around them and the neural substrates that underlie those summaries.

Read this article in German:
“Interview – Die Bedeutung von Machine Learning für das Data Driven Business“

Data Science Blog: Ms. Albrecht, you are a well-known keynote speaker for data science and artificial intelligence. While data science has arrived business already, deep learning seems to be the new trend. Is artificial intelligence for business already normal business or is it an overrated hype?

I’d say it isn’t either of those two options.  Data science is now widely adopted but companies still struggle to integrate this new discipline into their existing businesses.  As for deep learning, it really depends on the company that’s looking into using this technique.  I wouldn’t say that deep learning is by any means part of business as usual- nor should it be.  It’s a tool like any other and building a capacity for using a tool without clearly defined business needs is a recipe for disaster.

Data Science Blog: Just to make sure what we are talking about: What are the differences and overlaps between data analytics, data science, machine learning, deep learning and artificial intelligence?

Here at Cloudera Fast Forward Labs, we like to think of data analytics as collecting data and counting things (mostly for quick charts and reports).  Data science solves business problems by counting cleverly and predicting things with the data that’s collected.  Machine learning is about solving problems with new kinds of feedback loops that improve with more data.  Deep learning is a particular type of machine learning and is not itself a separate concept or type of tool.  Artificial intelligence taps into something more complicated than what we’re seeing today – it’s much broader than training machines to repetitively do very specialized tasks or solve very narrow problems.

Data Science Blog: And how can we add the context to big data?

From a theoretical perspective, data science has been around for decades. The building blocks for modern day machine learning, deep learning and artificial intelligence are based on mathematical theorems  that go back to the 1940’s and 1950’s. The challenge was that at the time, compute power and data storage capacity were simply too expensive for the approaches to be implemented. Today that’s all changed.. Not only has the cost of data storage dropped considerably, open source technology like Apache Hadoop has made it possible to store any volume of data at costs approaching zero. Compute power, even highly specialised chip architectures, are now also available on demand and only for the time organisations need them through public and private cloud solutions. The decreased cost of both data storage and compute power, together with a growing list of tools and resources readily available via the open source community allows companies of any size to benefit from data (no matter that size of that data).

Data Science Blog: What are the challenges for organizations in getting started with data science?

I see two big challenges when getting started with data science.  One is ensuring that you have organizational alignment around exactly what type of work data scientists will deliver (and timing for those projects).  The second hurdle is around ensuring that you have the right data in place before you start hiring data scientists. This can be tricky if you don’t have in-house expertise in this area, so sometimes it’s better to hire a data engineer or a data strategist (or director of data science) before you ever get started building out a data science team.

Data Science Blog: There are many discussions about how to build a data-driven business. Is it just about using data science to get a better understanding of customer behavior?

No, being data driven doesn’t just mean better understanding your customers (though that is one way that data science can help in an organization).  Aside from building an organization that relies on data and analytics to help them make decisions (about customer behavior or otherwise), being a data-driven business means that data is powering your core products.

Data Science Blog: The number of technologies, tools and frameworks is increasing. For organizations this also means increasing complexity. Do companies need to stay always up-to-date or could it be an advice to wait and imitate pioneers later?

While it’s not critical (or advisable) for organizations to adopt every new advancement that comes along, it is critical for them to stay abreast of emerging frameworks.  If a business waits to see what others are doing, and therefore don’t invest in understanding how new advancements can affect their particular business, they’ve likely already missed the boat.

Data Science Blog: Global players have big budgets just for doing research and setting up data labs. Middle-sized companies need to see the break even point soon. How can we accelerate the value generation of data science?

Having a team that is highly focused on a specific set of projects that are well-scoped and aligned to the business makes all the difference.  Data science and machine learning don’t have to sacrifice doing research and being innovative in order to produce value.  The biggest difference is that smaller teams will have to be more aware of how their choice of project fits into emerging frameworks and their particular acute and near term business needs.

Data Science Blog: How does Cloudera Fast Forward Labs help other organizations to accelerate their start with machine learning?

We advise organizations, based on their particular needs, on what the latest advancements are in machine learning and data science, how to build and structure their data teams to develop the capabilities they need to meet their goals, and how to quickly implement custom forward-looking solutions using their own data and in-house expertise.

Data Science Blog: Finally, a question for our younger readers who are looking for a career as a data expert: What makes a good data scientist? Do you like to work with introverted coding nerds or the data loving business experts?

A good data scientists should be deeply curious and have a love for the ways in which data can lead to new discoveries and power the next generation of products.  We expect the people who thrive in this field to come from a variety of backgrounds and experiences.

Interview – Python as productive data science environment

Miroslav Šedivý is a Senior Software Architect at UBIMET GmbH, using Python to make the sun shine and the wind blow. He is an enthusiast of both human and programming languages and found Python as his language of choice to setup very productive environments. Mr. Šedivý was born in Czechoslovakia, studied in France and is now living in Germany. Furthermore, he helps in the organization of the events PyCon.DE and Polyglot Gathering.


On 26th June 2018 he will explain at the Python@DWX conference why “Lifelong Text Hackers Use Vim and Python”. Insert the promotion code PY18science to unlock your 10% discount on all tickets. More info and tickets on python-con.com.


Data Science Blog: Mr. Šedivý, how did you find the way to Python as your favorite programming language?

Apart from traditional languages taught at school (Basic, Pascal, C, Java), some twenty years ago I learned Perl to hack a dynamic web site and used it to automate my daily tasks. Later I used it professionally for scientific calculations in the production. This was later replaced by Python, its newer versions and more advanced libraries. Nowadays Python has almost completely replaced Perl as my principal language and I use Perl just to hack some command line filters and to impress colleagues.

Data Science Blog: Python is one of the most popular programming language for data scientists. This is remarkable as it is originally not designed for doing data science with it. What made it a competitor to languages like R or Julia?

Python is the most powerful programming language that is still legible. This appeals to data scientists who can enter each line interactively, and immediately see what happens, because each line actually does something. They can inspect their data easily and build automating systems to process their data transparently.

Data Science Blog: Is there anything you could do better with another programming language?

Sometimes I’m playing with some functional languages that would allow me to write code that is easier to test and parallelize.

Data Science Blog: Which libraries are the most important ones for your daily business?

The whole Pandas ecosystem with Numpy and Scipy. Matplotlib for plots, PyTables and Psycopg2 for storage. I’m also importing a few async libs for webservices and similar network-based software.

I also enjoy discovering the world of Unicode and Timezones – both of them are the spots where the programmers absolutely have to obey the chaotic reality of the outside world.

Data Science Blog: Which editor do you use? And how to set it up as a productive environment?

I tried several editors and IDEs, but always came back to Vi or Vim. This is an extremely powerful editor that is around since over forty years, which was probably before most of today’s active developers learned to type. I’m using it for all text editing tasks, which I’m actually going to show in my talk at DWX [Lifelong Text Hackers Use Vim and Python]. Steep learning curve is not an argument against a tool you can grok during your entire career.

Data Science Blog: In your opinion: For all developers and data scientists, who are used to Java, Scala, R oder Perl, is Python easy to learn? Could it be too late to switch for somebody?

Python is a great general language that can be learned rapidly to a usable level. It’s different from the aforementioned languages. I remember my switching process from Perl to Python over ten years ago with a book “Perl to Python Migration”, which forced me to switch my way of thinking. From the question “Why do I have to import ‘re’ for regular expressions if Perl uses them natively?” to “Actually, I can solve this problem without regular expressions.”.

What makes a good Data Scientist? Answered by leading Data Officers!

What makes a good Data Scientist? A question I got asked recently a lot by data science newbies as well as long-established CIOs and my answer ist probably not what you think:
In my opinion is a good Data Scientist somebody with, at least, a good knowledge of computer programming, statistics and the ability of understanding the customer´s business. Above all stands a strong interest in finding value in distributed data sources.

Debatable? Maybe. That’s why I forwarded this question to five other leading Data Scientists and Chief Data Officers in Germany, let’s have a look on their answers to this question and create your own idea of what a good Data Scientist might be:


Dr. Andreas Braun – Head of Global Data & Analytics @ Allianz SE

A data scientist connects thorough analytical and methodological understanding  with a technical hands-on/ engineering mentality.
Data scientists bridge between analytics, tech, and business. “New methods”, such as machine learning, AI, deep learning etc. are crucial and are continuously challenged and improved. (14 February 2017)


Dr. Helmut Linde – Head of Data Science @ SAP SE

The ideal data scientist is a thought leader who creates value from analytics, starting from a vision for improved business processes and an algorithmic concept, down to the technical realization in productive software. (09 February 2017)


Klaas Bollhoefer – Chief Data Scientist @ The unbelievable Machine Company

For me a data scientist thinks ahead, thinks about and thinks in-between. He/she is a motivated, open-minded, enthusiastic and unconventional problem solver and tinkerer. Being a team player and a lone wolf are two sides of the same coin and he/she definitely hates unicorns and nerd shirts. (27 March 2017)

 


Wolfgang Hauner – Chief Data Officer @ Munich Re

A data scientist is, from their very nature, interested in data and its underlying relationship and has the cognitive, methodical and technical skills to find these relationships, even in unstructured data. The essential prerequisites to achieve this are curiosity, a logical mind-set and a passion for learning, as well as an affinity for team interaction in the work place. (08 February 2017)

 


Dr. Florian Neukart – Principal Data Scientist @ Volkswagen Group of America

In my opinion, the most important trait seems to be driven by an irresistible urge to understand fundamental relations and things, whereby I summarize both an atom and a complex machine among “things”. People with this trait are usually persistent, can solve a new problem even with little practical experience, and strive for the necessary training or appropriate quantitative knowledge autodidactically. (08 February 2017)

Background idea:
That I am writing about atoms and complex machines has to do with the fact that I have been able to analyze the most varied data through my second job at the university, and that I am given a chance to making significant contributions to both machine learning and physics, is primarily rooted in curiosity. Mathematics, physics, neuroscience, computer science, etc. are the fundamentals that someone will acquire if she wants to understand. In the beginning, there is only curiosity… I hope this is not too out of the way, but I’ve done a lot of job interviews and worked with lots of smart people, and it has turned out that quantitative knowledge alone is not enough. If someone is not burning for understanding, she may be able to program a Convolutional Network from the ground but will not come up with new ideas.

 


Interview – Using Decision Science to forecast customer behaviour

Interview with Dr. Eva-Marie Müller-Stüler from KPMG about how to use Decision Science to forecast customer behaviour

Dr. Eva-Marie Müller-Stüler is Chief Data Scientist and Associate Director in Decision Science at KPMG LLP in London. She graduated as a mathematician at the Technical University of Munich with a year abroad in Tokyo, and completed her Doctorate at the Philipp University in Marburg.

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Read this article in German:
“Interview – Mit Data Science Kundenverhalten vorhersagen “

Data Science Blog: Ms Dr. Müller-Stüler, which path led you to the top of Analytics for KPMG?

I always enjoyed analytical questions, and have a great interest in people and finance. For me, understanding how people work and make decisions is incredibly exciting. In my Master’s and my PhD theses I had to analyse large amounts of data and had to program various algorithms. Now, combining a solid mathematical education with specific industry and business knowledge enables me to understand my clients’ businesses and to develop methods that disrupt the market and uncover new business strategies.

Data Science Blog: What kind of analytical solutions do you offer your clients? What benefits do you generate for them?

Our team focuses on Behaviour and Customer Science under a mantra and mission: “We understand human behaviour and we change it”. We look at all the data artefacts a person (for example, the customer or the employee) leaves behind and try to solve the question of how to change their behaviour or to predict future behaviour. With advanced analytics and data science we develop “always-on” forecasting models, which enable our clients to act in advance. This could be forecasting customer demand at a particular location, how it can be improved or influenced in the desired direction, or which kind of promotions work best for which customer. Also the challenge of predicting where, and with what product mix, a new store should be opened can be solved much more accurately with Predictive Analytics than by conventional methods.


Data Science Blog: What prerequisites must be fulfilled to ensure that predictive analyses work adequately for customer behaviour?

The data must, of course, have a certain quality and history to recognize trends and cycles. Often, however, one can also create an advantage by using additional new data sources. Experience and creativity are enormously important to understand what is possible and how to improve the quality of our work, or whether something only increases the noise.

Data Science Blog: What external data sources do you need to integrate? How do you handle unstructured data?

As far as external data sources are concerned, we are very spoiled here in England. We use about 10,000 different signals on average, and which vary depending on the question. These might include signals that show the composition of the population, local traffic information, the proximity of sights, hospitals, schools, crime rates and many more. The influence of each signal is also different for each problem. So, a high number of pick pocketing incidences can be a positive sign of the vibrancy of an area, and that people carry a lot of cash on average. For a fast food retailer with a presence in the city centre, for example, this could have a positive influence on a decision to invest in a new outlet in the area, in another area the opposite.

Data Science Blog: What possibilities does data science provide for forensics or fraud detection?

Every customer is surrounded by thousands of data signals and produces and transmits more by through his behaviour. This enables us to get a pretty good picture about the person online. As every kind of person also has a certain behavioural pattern (and this also applies to fraudsters) it is possible to recognise or predict these patterns in time.

Data Science Blog: What tools do you use in your work? When do you rely on proprietary software or on open source?

This depends on what stage we are in the process and the goal defined. We differentiate our team into different groups: Our Data Wranglers (who are responsible for extracting, generating and processing the data) work with other tools than our Data Modellers. Basically our tool kit covers the entire range of SQL Server, R, Python, but sometimes also Matlab or SAS. More and more, we are working with cloud-based solutions. Data visualization and dashboards in Qlik, Tableau or Alteryx are usually passed on to other teams.

Data Science Blog: What does your working day as a data scientist look like from after the morning café until the end of the evening?

My role is perhaps best described as the player’s coach. At the beginning of a project, it is primarily about working with the client to understand and develop the project. New ideas and methods have to be developed. During a project, I manage the teams and knowledge transfer; the review and the questioning of the models are my main tasks. In the end I do the final sign-off of the project. Since I often run several projects at different stages at the same time, it is guaranteed never boring.

Data Science Blog: Are good Data Scientists of your experience more likely to be consultant types or introvert nerds?

That depends upon what one is focused. A Data Visualizer or Data Artist reduces the information and visualise it in a great and understandable way. This requires creativity, a good understanding of business and safe handling of the tools.

The Data Analyst is more concerned with the “Slicing and Dicing” of data. The aim is to analyse the past and to recognize relationships. It is important to have good mathematical and statistical abilities in addition to the financial knowledge.

The Data Scientist is the most mathematical type. His job is to recognize deeper connections in the data and to make predictions. This involves the development of complicated models or Machine Learning Algorithms. Without a good mathematical education and programming skills it is unfortunately not possible to understand the risk of potential errors in full depth. The danger of drawing wrong conclusions or interpreting correlations counterfactually is very great. A simple example of this is that, in summer, when the weather is beautiful, more people eat ice cream and go swimming. Therefore, there is a strong correlation between eating ice and the number of drowned people, although eating ice cream does not lead to drowning. The influencing variable is the temperature. To minimise the risk for wrong conclusions I think it is important have worked and studied mathematics, data science, machine learning and statistics in depth – this usually means a PhD in science related subject.

Beyond that, business and industry knowledge is also important for a Data Scientist. His solutions must be relevant to the client and solve their problems or improve their processes. The best AI machine does not give any bank a competitive advantage if it predicts the sale of ice cream based on the weather. This may be 100% correct, but has no relevance for the client.

It is quite similar to other areas (e.g., medicine) too. There are many different areas, but for serious problems it is best to ask a specialist so that you do not draw wrong conclusions.

Data Science Blog: For all students who have soon finished their bachelor’s degree in computer science, mathematics, or economics, what would they advise these young ladies how to become good Data Scientists?

Never stop learning! The market is currently developing incredibly fast and has so many great areas to focus on. You should dive into it with passion, enthusiasm and creativity and have fun with the recognition of patterns and relationships. If you also surround yourself with interesting and inspiring people from whom you can learn more, I predict that you’ll do well.

This interview is also available in German: https://data-science-blog.com/de/blog/2016/11/10/interview-mit-advanced-analytics-kundenverhalten-verstehen/