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July 2014 Blog Posts (45)

10 types of regressions. Which one to use?

Should you use linear or logistic regression? In what contexts? There are hundreds of types of regressions. Here is an overview for data scientists and other analytic practitioners, to help you decide on what regression to use depending on your context. Many of the referenced articles are much better written (fully edited) in my data science Wiley book.…


Added by Vincent Granville on July 21, 2014 at 7:30pm — 13 Comments

Social Media for App Capture and Question Answering in Open Vocabulary Executable English over Web Databases.

Imagine government and other web sites answering an open ended collection of English questions, and also explaining the answers in English.  Imagine people socially networking, Wikipedia-style, to continually expand the range of questions that can be answered.

The approach starts from the observation that data by itself is necessary, but not enough, for many practical uses of an intranet or the Web.

What's also needed is knowledge about how to use the data to answer an ever…


Added by Adrian Walker on July 21, 2014 at 3:03pm — No Comments

Common Pitfalls that Can Doom a BYOD Program

From what you hear from all the latest technology news, Bring Your Own Device (BYOD) is the end-all, be-all of technology policies, guaranteed to make businesses run smoother, employees feel happier, and cash pile up like never before. BYOD can certainly be helpful, but it’s far from the solution to all of a business’s problems, mainly because there are many pitfalls companies can easily fall into. These mistakes are easy for anyone to make, which is why knowing them before implementing a…


Added by Rick Delgado on July 21, 2014 at 1:35pm — No Comments

Can A 50-Person Startup Threaten Oracle, IBM, And Microsoft?

Originally posted on Forbes.

Companies spend $35 billion on so-called SQL databases to store and retrieve their data. Goliaths Oracle, IBM ans Microsoft all sell such databases. But a 50-employee, Cambridge, Mass.-based startup claims to be winning business from their enterprise customers. Should investors in those Goliaths be worried?



Added by Mirko Krivanek on July 21, 2014 at 9:30am — No Comments

How big data analytics can help to avoid fx rate fixing & Benchmark rate rigging?

Foreign exchange market is world's largest and least regulated financial market. Its estimated daily turnover is $5.35 trillion, according to the Bank for International Settlements’ triennial survey of 2013. Speculative trading dominates commercial transactions in the forex market, as the constant fluctuation of currency rates makes it an ideal venue for institutional players with deep pockets – such as large banks and hedge funds – to generate profits through speculative currency…


Added by ganeshbabu on July 20, 2014 at 8:03pm — No Comments

How many of us think Big Data is Big BS?

Digital world is continuously churning vast amount of data which is getting ever vaster ever more rapidly. Some analysts are saying that we are producing more than 200 exabytes of data each year. We've heard this so many times that managed well, this (big) data can be used to unlock new sources of…


Added by Ali Syed on July 20, 2014 at 4:00pm — No Comments

An Ethics Framework for Big Data

What do Target and the NSA have in common?

Court room

They both used Big Data and analytics in a way that inspired a major slap on the hand. Target was predicting which of their customers were pregnant and sending them targeted coupons for baby products, which prompted the ire of a father whose teenage daughter hadn’t told him yet. The NSA incurred the wrath of world leaders, the US Congress, and even a good portion of the American public when the…


Added by Randal Scott King on July 20, 2014 at 3:53pm — No Comments

Participation in Data and the Effectiveness of Intervention

The role of statistics in data science is often debated. Despite rapid developments in technology giving access to algorithmically sophisticated approaches, I feel that statistics can still provide many worthwhile insights. If I have a database of sales figures spanning many years, I feel that I can become more aware of historic trends and seasonal patterns through the use of statistics. Statistics offers a sense of state, direction, pace, and progress. Statistics can also enable estimation…


Added by Don Philip Faithful on July 19, 2014 at 7:57am — No Comments

This Just In: How Big Data is Changing Journalism

When people talk about journalists or reporters, the image of a man or woman eagerly talking to people with a notepad and pen in hand likely comes to mind. It’s a look that has permeated much of pop culture, but it should probably come as little surprise that the modern day journalist is much different. While they still may interview people on the street or sit down to talk with them, today’s journalist is turning to numbers, spreadsheets, and computer programs more often…


Added by Rick Delgado on July 17, 2014 at 5:41am — No Comments

The fastest growing data science / big data profiles on Twitter

This article is co-authored with Dr. Livan Alonso Sarduy. The two charts below are based on a number of Twitter followers and their growth rate, after filtering out irrelevant or fake followers. Our next step is to identify top data science Twitter accounts, that are themselves followed by many other top data science Twitter accounts: in our opinion,…


Added by Vincent Granville on July 16, 2014 at 6:30pm — 2 Comments

Weekly Digest - July 21

The full version is always published Monday. Starred articles are new additions or updated content, posted between Thursday and Sunday.

Featured Articles


Added by Vincent Granville on July 16, 2014 at 2:30pm — No Comments

15 interviews with 15 data scientists

Interesting PDF document featuring 15 data scientists (mostly co-founders of various start-ups or well known data science websites), with an average of 9 pages per interview. Posted on by Hannah Brook. Here's the list:

  • Parham Aarabi: Visual Image Extraction - CEO of ModiFace &…

Added by Mirko Krivanek on July 15, 2014 at 2:30pm — No Comments

Ensuring Success of Early Modeling Initiatives

Getting First Steps Right

Firms across sectors are increasingly recognizing the role of advanced analytics in enhancing business functions and operations.Mature Firms have established dedicated cross functional analytics teams and are reaping rewards.These firms has come through a long journey in embedding analytics as a culture within organization.

If you are one of the firms looking to start on analytics now is…


Added by Vikas Kamra on July 15, 2014 at 8:19am — No Comments

The Best Ways to Segment Customer Data

In a broad analysis across all segmented email campaigns, MailChimp found that simple segmentation increased email open and click rates by 15 percent. Sarah Goliger of Hubspot found click rates for segmented campaigns to be as high as 50 percent more…


Added by Jesse Jacobsen on July 14, 2014 at 11:00am — No Comments

10 Features all Dashboards Should Have

Here are 10 rules to design great, simple, efficient, adaptive dashboards.

  1. Decide which metrics should be included in your dashboard. Some metrics such as measuring the impact of sharing and likes, on email marketing campaigns, are not easy to estimate. Out-of-dashboard statistical modeling might…

Added by Vincent Granville on July 11, 2014 at 9:30am — 1 Comment

Applications of Big Data in Customer Segmentation

By now, companies all over the world are coming to the realization that big data is crucial for future business growth and greater efficiency. There are many ways big data is contributing to this latest boom in productivity, and new methods are being discovered and used all the time. One element receiving a lot of attention and making headlines in technology news is how big data is aiding in customer…


Added by Rick Delgado on July 9, 2014 at 12:29pm — No Comments

Weekly Digest - July 14

The full version is always published Monday. Starred articles are new additions or updated content, posted between Thursday and Sunday.



Added by Vincent Granville on July 7, 2014 at 9:30am — No Comments

BigQuery Big Data Visualization With D3.js

How to handle large dataset with D3.js?

It’s a frequently asked question. You can read several discussions on the topic here,here, and here. So far, the best solution is to process data to a smaller dataset. Then use D3.js…


Added by Phuoc Do on July 7, 2014 at 9:01am — No Comments

30 interesting statistics about social media

Guest blog post by Carla Gentry (@data_nerd), initially posted here.

Below are 30 of the top stats that can help you either sell social media to the higher ups in your company or help you in securing additional resources for your company’s social program.

  • 5 percent of online shoppers note that social media influenced them to visit…

Added by Vincent Granville on July 6, 2014 at 1:30pm — 1 Comment

Top Data Scientists on Twitter

There are many lists of top data scientists on Twitter. Here we mention and comment one of them, published on BigData-MadeSimple; most other lists have similar drawbacks. It has been argued that the overlap between my Top 25 data scientists on LinkedIn and the Twitter…


Added by Vincent Granville on July 5, 2014 at 8:30am — 2 Comments

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