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  1. R + Hadoop = Data Analytics Heaven…
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Added by Vincent Granville on November 18, 2012 at 5:00pm — No Comments

Data as Strategic Asset

Transforming into a data-driven organization - turning information into actionable insights is a three (3 ) part strategy:



• Technology – build a modern BI/DW architecture & analytics ecosystem with…

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Added by Michael Walker on November 14, 2012 at 9:22am — No Comments

Digesting Big Data

Big Data holds a big promise. But has that promise paid out already? Or are you heading for Big Dollar Disaster? Many take inventory of their data and find out they have terabytes of data lying around. Surely something should be done with that, so here’s how we see a lot of companies going about implementing ‘something’ for their Big Data.

  • Buy hardware, set up a cluster and install some flavor of Hadoop.
  • Break their brains to figure out how to run map-reduce…
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Added by Jos Verwoerd on November 13, 2012 at 2:08am — No Comments

S3 as Input or Output for Hadoop MR jobs

How to use s3 (s3 native) as input / output for hadoop MapReduce job. In this tutorial we will first try to understand what is s3, difference between s3 and s3n and how to set s3n as Input and output for hadoop map reduce job. Configuring s3n as I/O may be useful for local map reduce jobs (ie MR run on local cluster), But It has significant importance when we run elastic map reduce job (ie when we run job on cloud). When we run job on cloud we need to specify storage location for input as…

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Added by Rahul Patodi on November 11, 2012 at 8:00am — No Comments

Article: Data Mining Misconceptions - The 50/50 Problem

When creating a predictive model, data miners need to “tune” it to make the right kind of mistakes.  Setting the cut-off point between ‘promising’ and ‘unpromising’ depends a lot on our client’s biggest concern -- missed opportunities or false alarms.

Data Mining Misconceptions #1: The 50/50 Problem…

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Added by Daniel R. Graettinger on November 8, 2012 at 5:00pm — 2 Comments

Big Data Debunks View That Job-Hoppers Make Bad Hires | Forbes

Jim Meyerle is co-founder and EVP of Strategy and Finance forEvolv On-Demand.…

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Added by Vincent Granville on November 8, 2012 at 1:49pm — No Comments

Pundit Election Forecasts All Wrong, Nate Silver Perfectly Right. | TechCrunch

Predicting election results in the 50 states is actually much more easy than most people think. West Coast and East Coast are democrat, Midwest, Texas etc. are mostly republican (the Midwest becoming more republican because the population is aging due to brain drain by young, smart people - mostly democrats). So indeed the task is not about correctly predicting results for the 50 states, but simply predicting…

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Added by Vincent Granville on November 8, 2012 at 11:00am — No Comments

Big Data pioneers show the way

There is little time, about 3 or 4 years, if you wanted to process a large amount of textual data or web logs, you need to mobilize large servers and implement consistent SQL programs, long to be developed long and long to give results. Fortunately requests were few and generally volumes were measured at most in terabytes. Now e-commerce and social media have been largely developed, and many companies see their customer relationships, and therefore their survival, entirely dependent on the…

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Added by Michel Bruley on November 8, 2012 at 3:58am — No Comments

R + Hadoop = Data Analytics Heaven

 

Hadoop (MapReduce where code is turned into map and reduce jobs, and Hadoop runs the jobs) is the most well known technology used for "Big Data" because it allows an organization to store huge quantities of data at very low…

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Added by Michael Walker on November 7, 2012 at 3:57pm — No Comments

History of Analytics

Educating savvy and business-minded Indians on the importance of numbers and analytics in your business is like teaching the properties of sand to someone in the desert, but here is my effort anyway.

The simplest definition of analytics is "the science of analysis." However, a practical definition would be how an entity, e.g., a business, arrives at an optimal or realistic decision based on existing data. Business managers may choose to make decisions based on past experiences or…

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Added by AcademyForDecisionScience&Analyt on October 29, 2012 at 7:30pm — No Comments

Feature selection for efficient modeling

Feature selection, also known as variable selection, feature reduction, attribute selection or variable subset selection is the technique of selecting a subset of relevant features for building robust learning models (Source: Wikipedia). Data mining problems may involve hundreds, or even thousands, of variables that can potentially be used as inputs. As a result, a great deal of time and effort may be spent examining which variables to include in the model. Feature selection allows us to…
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Added by Venky Rao on November 3, 2012 at 10:03pm — 2 Comments

"Common Mistakes in practice" of analytics

  1. Ignoring to apply Commonsense and practical knowledge in using analytical tools in providing solutions to the given problem.
  2. The results are highly biased towards models (tools and techniques), but unable to realize the importance of the problem; and its basic sampling techniques.
  3. By Ignoring root causes (i.,e proper investigation, deep analysis of the customized problem), Analytics are providing mid-way solution; which is not adequate.
  4. Analytical…
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Added by Vijay Kumar on November 2, 2012 at 8:41pm — No Comments

5 Thing You Need to Know about Hadoop

Big Data is a term used to categorize an excessive amount of aggregated data. But, how do Data Miners manage all of this data? Hadoop is one of the popular tools that data analysts are using to store and mine immense volumes of data.

Here are 5 Things a Data Analyst should know about Hadoop:

1.      Hadoop utilizes parallel processing to store and process…

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Added by Ben Gold on November 2, 2012 at 9:21am — No Comments

Data Science Central Weekly Digest

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Added by Vincent Granville on November 2, 2012 at 7:30am — No Comments

Yo-Yo Ma Social Scientist or Data Scientist

YO-YO MA – SOCIAL SCIENTIST

Stories
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Added by Zach Piester on November 1, 2012 at 3:02pm — No Comments

Assessing the Damage From Hurricane Sandy | New York Times

Includes great charts from FlowingData.com.

Five of New York’s 14 wastewater treatment plants are in the lowest-lying areas of the city, within the mandatory evacuation zone. When the plants get filled to capacity or flooded, sewage and stormwater mix and bypass the plant, flowing directly into New York’s waterways — and now, into flooded streets and buildings.…
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Added by Vincent Granville on October 31, 2012 at 9:53am — No Comments

Creating an Analytics Driven Culture - The ProMorphics Approach

Many decisions, big and small are made every day across various lines of business, executive offices and departments in your organization. How are these decisions made today in your organization? What drives the decision maker(s) to say ‘yes’ or ‘no’ for any particular decision? Let’s look at some of the key business challenges that many organizations are facing today where decision making is critical.…

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Added by Srini Pagidyala on October 31, 2012 at 8:00am — No Comments

Traditional BI vs Data Analytics Approach

See: …

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Added by Michael Walker on October 31, 2012 at 7:38am — 1 Comment

Top 16 articles for week ending October 24

From Data Science Central and AnalyticBridge

  1. Splunk for Hadoop – Real Time Analytics…
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Added by Vincent Granville on October 25, 2012 at 7:10pm — No Comments

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