Subscribe to DSC Newsletter

Vincent Granville's Blog – November 2015 Archive (18)

The ABCD's of Business Optimization

I was trying to find some good domain name for our upcoming business science website, when something suddenly became clear to me. Many of us have been confused for a long time about what data science means, how it is different from statistics, machine learning, data mining, or operations research, and the rise of the data scientist light - a new species of coders who call themselves data scientist after a few hours of Python/R…

Continue

Added by Vincent Granville on November 26, 2015 at 11:00am — 2 Comments

Weekly Digest, November 30

Starred articles are new additions or updated content, posted between Thursday and Sunday. The weekly digest has 6 sections: (1) Featured Articles and Case Studies, (2) Featured Resources and Technical Contributions, (3) From our Sponsors, (4) News, Events, Books, Training, Forum Questions, (5) Picture of the Week, and (6) Syndicated Content.

The full version is always published Monday.…

Continue

Added by Vincent Granville on November 25, 2015 at 9:00am — No Comments

21 data science systems used by Amazon to operate its business

Most of these systems are or should be used by most large organisations, for business optimization.

Here's my list:

  1. Supply chain optimization (I). Sites selection for warehouses to minimize distribution costs (proximity to vendors, balanced against proximity to consumers). How many warehouses are needed, and what capacity each of…
Continue

Added by Vincent Granville on November 19, 2015 at 11:00am — 5 Comments

20 Excel spreadsheet secrets

This post has been moved here

Added by Vincent Granville on November 18, 2015 at 8:52pm — No Comments

How do I become a data scientist?

This post has been moved here.

Added by Vincent Granville on November 18, 2015 at 8:49pm — No Comments

Extreme Data Science

Extreme data science is a way of doing data science to deliver high value very fast. It can best be compared to extreme  rock climbing, where individuals managed to climb challenging peaks in uncharted territory, in minimum amount of time with a small team and small budget, sometimes successfully using controversial climbing routes or techniques. For instance, Reinhold Messner climbing the Everest in winter, alone in three days with no oxygen, no sherpa.

Extreme data science…

Continue

Added by Vincent Granville on November 18, 2015 at 8:38pm — No Comments

Difference between data engineers and data scientists

Here's one of the main differences:

  • ETL (Extract / Load / Transform) is for data engineers, or sometimes data architects or DBA's
  • DAD (Discover / Access / Distill) is for data scientists.

Sometimes data engineers do DAD, sometimes data scientists do ETL, but it's rather rare, and when they do it, it's purely internal (the data engineer doing a bit of statistical analysis to optimize some database processes, the data scientist doing a bit of database…

Continue

Added by Vincent Granville on November 18, 2015 at 8:00pm — No Comments

Weekly Digest, November 23

Starred articles are new additions or updated content, posted between Thursday and Sunday. The weekly digest has 6 sections: (1) Featured Articles and Case Studies, (2) Featured Resources and Technical Contributions, (3) From our Sponsors, (4) News, Events, Books, Training, Forum Questions, (5) Picture of the Week, and (6) Syndicated Content.

The full version is always published Monday.…

Continue

Added by Vincent Granville on November 18, 2015 at 4:30pm — No Comments

Data Scientist vs Statistician

Many statisticians think that data science is about analyzing data, but it is more than that. Data science also involves implementing algorithms that process data automatically, to provide automated predictions and actions, such as:

  • Automated bidding systems
  • Estimating (in real time) the value of all houses in the United States (Zillow.com)…
Continue

Added by Vincent Granville on November 18, 2015 at 8:31am — No Comments

30 Great Resources and Articles

Starred articles are candidates for the picture of the week. A comprehensive list of all past resources is found here. We are in the process of automatically categorizing them using indexation and automated tagging…

Continue

Added by Vincent Granville on November 16, 2015 at 1:12pm — No Comments

Creative Data Engineering Can Drive Data Science Insights: A Datapalooza Dispatch

Guest blog post by James Kobielus.

Data science lives in the details of your projects. But those details are dry as dust if your projects don’t intersect with something about which you care passionately.

Passions are as varied as the data scientists themselves, and immersion in project details is a sure sign of a true data scientist. The first day of Datapalooza in San Francisco brought many working data scientists together to share details of projects that excite…

Continue

Added by Vincent Granville on November 13, 2015 at 10:53am — No Comments

Data Science is greater than the sum of its parts

Good post by Kirk Borne. If  you have

  • domain expertise (a),
  • business acumen (b),
  • analytic skills (c),
  • hacking skills (d),
  • coding skills (e),
  • and selling skills - to sell your data science product to your boss (f),

then your potential or value (v) is equal to

v = a * b * c* d * e * f > a + b + c + d…

Continue

Added by Vincent Granville on November 12, 2015 at 9:30pm — No Comments

Example of Bad Data Science: Test of Hypothesis

This is becoming a bigger issue every month - authors publishing articles about some statistical technique in a data science blog - while these techniques not only don't work well in many contexts, but in addition can not be understood or interpreted by the layman or your client. It makes data science looks bad.

In this case, it's about…

Continue

Added by Vincent Granville on November 10, 2015 at 11:00pm — 10 Comments

Weekly Digest, November 16

Starred articles are new additions or updated content, posted between Thursday and Sunday. The weekly digest has 6 sections: (1) Featured Articles and Case Studies, (2) Featured Resources and Technical Contributions, (3) From our Sponsors, (4) News, Events, Books, Training, Forum Questions, (5) Picture of the Week, and (6) Syndicated Content.

The full version is always published Monday.…

Continue

Added by Vincent Granville on November 9, 2015 at 11:00am — No Comments

Python for Data Science vs Python for Web Development

This article has been removed. We apologize for the inconvenience. To learn more about Python, click here. We believe that Python is a great language for web development, and that over time, libraries have been added for data science. 

Python Libraries for Web Development:

  • Django…
Continue

Added by Vincent Granville on November 4, 2015 at 4:00pm — 2 Comments

Weekly Digest, November 9

Starred articles are new additions or updated content, posted between Thursday and Sunday. The weekly digest has 6 sections: (1) Featured Articles and Case Studies, (2) Featured Resources and Technical Contributions, (3) From our Sponsors, (4) News, Events, Books, Training, Forum Questions, (5) Picture of the Week, and (6) Syndicated Content.

The full version is always published Monday.…

Continue

Added by Vincent Granville on November 4, 2015 at 11:30am — No Comments

Datapalooza: Compose Your Data-Science Music

Guest blog post by James Kobielus

Data science is a creative problem-solving exercise. People become data scientists for many reasons, and the creative challenge is probably high up on the list.

Data scientists, like most creative people, are adept at what’s often called “pattern thinking.” This is the ability to discover beautiful regularities in the world around us that others may have overlooked.  To search for statistical regularities, data scientists use…

Continue

Added by Vincent Granville on November 3, 2015 at 10:04am — No Comments

The Beautiful Duality of TDA (Topological Data Analysis)

Guest blog post by Harlan Sexton. Originally posted here. Harlan is a co-founder of Ayasdi, has a Ph.D. in Mathematics from Stanford University, and more than 30 software patents.…

Continue

Added by Vincent Granville on November 3, 2015 at 10:00am — No Comments

Monthly Archives

2019

2018

2017

2016

2015

2014

2013

2012

2011

1999

Videos

  • Add Videos
  • View All

© 2019   Data Science Central ®   Powered by

Badges  |  Report an Issue  |  Privacy Policy  |  Terms of Service