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07
Sep
2018

Data Lake

categories: information technology

What is a Data Lake? A Super-Simple Explanation For Anyone

September 6, 2018 Bernard Marr

https://www.linkedin.com/pulse/what-data-lake-super-simple-explanation-anyone-bernard-marr/

James Dixon, the CTO of Pentaho is credited with naming the concept of a data lake. He uses the following analogy:

“If you think of a datamart as a store of bottled water – cleansed and packaged and structured for easy consumption – the data lake is a large body of water in a more natural state. The contents of the data lake stream in from a source to fill the lake, and various users of the lake can come to examine, dive in, or take samples.”

A data lake holds data in an unstructured way and there is no hierarchy or organization among the individual pieces of data. It holds data in its rawest form—it’s not processed or analyzed. Additionally, a data lakes accepts and retains all data from all data sources, supports all data types and schemas (the way the data is stored in a database) are applied only when the data is ready to be used.

What is a data warehouse?

A data warehouse stores data in an organized manner with everything archived and ordered in a defined way. When a data warehouse is developed, a significant amount of effort occurs during the initial stages to analyze data sources and understand business processes.

Data

Data lakes retain all data—structured, semi-structured and unstructured/raw data. It’s possible that some of the data in a data lake will never be used. Data lakes keep all data as well. A data warehouse only includes data that is processed (structured) and only the data that is necessary to use for reporting or to answer specific business questions.

Agility

Since a data lake lacks structure, it’s relatively easy to make changes to models and queries.

Users

Data scientists are typically the ones who access the data in data lakes because they have the skill-set to do deep analysis.

Security

Since data warehouses are more mature than data lakes, the security for data warehouses is also more mature.

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more on big data in this IMS blog
https://blog.stcloudstate.edu/ims?s=big+data

07
Sep
2018

Limbic thought and artificial intelligence

categories: Digital literacy, information technology, technology literacy

Limbic thought and artificial intelligence

September 5, 2018  Siddharth (Sid) Pai

https://www.linkedin.com/pulse/limbic-thought-artificial-intelligence-siddharth-sid-pai/

An AI programme “catastrophically forgets” the learnings from its first set of data and would have to be retrained from scratch with new data. The website futurism.com says a completely new set of algorithms would have to be written for a programme that has mastered face recognition, if it is now also expected to recognize emotions. Data on emotions would have to be manually relabelled and then fed into this completely different algorithm for the altered programme to have any use. The original facial recognition programme would have “catastrophically forgotten” the things it learnt about facial recognition as it takes on new code for recognizing emotions. According to the website, this is because computer programmes cannot understand the underlying logic that they have been coded with.
Irina Higgins, a senior researcher at Google DeepMind, has recently announced that she and her team have begun to crack the code on “catastrophic forgetting”.
As far as I am concerned, this limbic thinking is “catastrophic thinking” which is the only true antipode to AI’s “catastrophic forgetting”. It will be eons before AI thinks with a limbic brain, let alone has consciousness.
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Stephen Hawking warns artificial intelligence could end mankind

By Rory Cellan-JonesTechnology correspondent,2 December 2014
https://www.bbc.com/news/technology-30290540
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thank you Sarnath Ramnat (sarnath@stcloudstate.edu) for the finding

An AI Wake-Up Call From Ancient Greece

 ADRIENNE MAYOR https://www.project-syndicate.org/commentary/artificial-intelligence-pandoras-box-by-adrienne-mayor-2018-10

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more on AI in this IMS blog
https://blog.stcloudstate.edu/ims?s=artifical+intelligence

07
Sep
2018

4th industrial revolution

categories: Digital literacy, information technology, technology literacy

Are You Ready For The 4th Industrial Revolution?

Bernard Marr

https://www.linkedin.com/pulse/you-ready-4th-industrial-revolution-bernard-marr/

the Fourth Industrial Revolution, or Industry 4.0. The adoption of cyber-physical systems, the Internet of Things and the Internet of Systems

While in some ways it’s an extension of the computerization of the 3rd Industrial Revolution (Digital Revolution), due to the velocity, scope and systems impact of the changes of the fourth revolution, it is being considered a distinct era. The Fourth Industrial Revolution is disrupting almost every industry in every country and creating massive change in a non-linear way at unprecedented speed.

In his book, The Fourth Industrial Revolution, professor Klaus Schwab, founder and executive chairman of the World Economic Forum, describes the enormous potential for the technologies of the Fourth Industrial Revolution as well as the possible risks.

Our workplaces and organizations are becoming “smarter” and more efficient as machines, and humans start to work together, and we use connected devices to enhance our supply chains and warehouses. The technologies of the Fourth Industrial Revolution might even help us better prepare for natural disasters and potentially also undo some of the damage wrought by previous industrial revolutions.

There might be increased social tensions as a result of the socioeconomic changes brought by the Fourth Industrial Revolution that could create a job market that’s segregated into “low-skill/low-pay” and “high-skill/high-pay” segments.

We need to develop leaders with the skills to manage organizations through these dramatic shifts.

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More on the 4th industrial revolution in this IMS blog
https://blog.stcloudstate.edu/ims?s=industrial+revolution

07
Sep
2018

social media strategies

categories: Digital literacy, social media

Try these new social media strategies

Christopher Elliott

https://www.linkedin.com/pulse/try-new-social-media-strategies-christopher-elliott/

Research suggests more consumers are turning to Facebook, Twitter, and LinkedIn, to contact companies — whether the companies are ready or not.

“Social media is the future of customer service,” says Anna Yates, a content marketer for The Social Reach, a digital marketing agency. “Not only are consumers turning to social media more and more to learn about products and services, but new tools are available to make customer service faster, easier, and smarter.”

the three Ps — be patient, persistent, and polite. Companies tend to flip into “crisis” mode when you send angry messages that threaten lawsuits, bodily harm, or the end of civilization.

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more on social media strategies in this IMS blog
https://blog.stcloudstate.edu/ims?s=social+media+strategies

03
Sep
2018

Augmented Reality Apple

categories: Digital literacy, educational technology, information technology, instructional technology

Apple is hiring for an Augmented Reality team, possibly focused on Apple Maps

Joshua Fruhlinger

https://www.linkedin.com/pulse/apple-hiring-augmented-reality-team-possibly-focused-maps-fruhlinger/

Earlier this week, Apple ($NASDAQ:AAPL) acquired augmented reality (AR) lens and glasses company Akonia Holographics ($AKONIAHOLOGRAPHICS), which spawned plenty of speculation on Apple getting serious about AR.

Augmented reality overlays digital information over the real world and differs from virtual reality (VR), where the whole environment is simulated. Akonia describes its AR product as “thin, transparent smart glass lenses that display vibrant, full-color, wide field-of-view images.”

“Digital maps have become essential tools of our everyday lives, yet despite their ubiquity, they are still in their infancy. From urban mobility to indoor positioning, from LIDAR to Augmented Reality, advances in technology and new kinds of data are powering innovations in all areas of digital mapping. If you love maps and are passionate about what is possible, you will be in great company.”

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more about augmented reality in this IMS blog
https://blog.stcloudstate.edu/ims?s=augmented+reality+education

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