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All Blog Posts (1,686)

Time Period for Analytical Positions Recruitment.

Though having rough estimate of how much time each analytical position recruitment takes (i.e. due to experience in the filed); thought of giving a quantitative…
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Added by Dr. Pradeep Mavuluri on May 23, 2013 at 9:35pm — No Comments

Interview with SIBA Founder

Vision: Empowering clients to make scientific, data driven decisions.

Mission: To create decision enabling tools, which combine the power of predictive analytics and the latest technology, and enable the user to make the right decision at the right time with the right data.

 

Headquartered in Kolkata, SIBIA founded by Angshuman Bhattacharya is an up and coming marketing and consumer analytics venture…

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Added by Jigsaw Academy on May 23, 2013 at 5:09am — No Comments

Choosing The Right Technology For Your Business Analytics Project

Technology Considerations before choosing the right technology:

1. Size: the volume of raw data the technology can load and digest

2. Speed: how fast the technology updates and calculates data

3. Scalability: the technology’s ability to handle increasing workloads

What Impacts Data Size

• The primary storage device (HDD, SSD, RAM)

• Addressable memory space (64-bit vs. 32-bit)

• How much historical data is available

• How many…

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Added by Galia Nedvedovich on May 23, 2013 at 4:30am — 1 Comment

What Are the Difficulties of Business Spreadsheet software?

The business spreadsheet software is widely welcomed by business users for its simpleness and ease of use. However, there are some common calculations which are still tough for spreadsheets to solve, such as the year-on-year basis and link relative ratio.



Take the sales…

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Added by Jim King on May 23, 2013 at 2:39am — No Comments

Answer questions quickly with data - Sponsored by Tableau

Answer questions as fast as you can think of them with Tableau.

Born at Stanford and raised by a pack of wild PhDs, Tableau has best practices built right in. You get the benefit of years of research on the best way to represent data, from carefully optimized color schemes that tell clear stories, to built-in worldwide…

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Added by Vincent Granville on May 22, 2013 at 3:30pm — No Comments

Cross-validation in R: a do-it-yourself and a black box approach

In my previous post, we saw that R-squared  can lead to a misleading interpretation of the quality of our regression fit, in terms of prediction power. One thing that R-squared offers no protection against is overfitting. On the other hand, cross validation, by allowing us to have cases in our testing set that are different from the cases in our training set,  inherently offers protection against overfittting.

1.Do-it-yourself leave-one-out cross validation in R.

In this type…

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Added by Theophano Mitsa on May 22, 2013 at 8:06am — 1 Comment

Now, choose a right career for your child with analytics

Originally published in Business Standard

Though big data and analytics is already a buzz word in business circles, it’s potential is continuously reaching out further to touch the everyday ordinary lives of the common people. Can you imagine using analytics to help your child decide their future? Well companies like IBM are…

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Added by Jigsaw Academy on May 22, 2013 at 12:49am — No Comments

Analytics and the Indian Market- Good things ahead

Data is being collected everywhere around us. This data is analyzed and used to impact B2C and B2B markets in traditional and nontraditional sectors in ways we never imagined. Indeed Analytics has proven itself to be an essential tool for any organization, influencing every decision and impacting every stakeholder.

But what exactly does this big Analytics boom mean for India specifically? Well the outlook is extremely bright and here is just why:…

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Added by Jigsaw Academy on May 21, 2013 at 5:12am — No Comments

When to use a view and when a table, the fuzz about it for analysis

When to use a view and table?

Is it an art? I doubt it. Only when you cannot explain it and depends on feeling, it is an art.

Recently we are revising our codes and this question of giving guidance.on when to use table and view come to me. I consider the following questions:

1. when does it justify a table/view?

Having worked in a team setting on modeling and reporting works, the key to me is readability. leveraging my programming learning on object oriented concept, every… Continue

Added by Jeffrey Ng on May 20, 2013 at 4:50am — No Comments

R (Web Server) Solutions - Amplifying Artichokes

Every month I see one or more new R based web server solutions coming into the market, sight seeing some of them thought of sharing one of my old architecture map manifested to the client long back in early 2009 (good to see quick spreading of scalable and customizable open source statistical computing tool in the market).…

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Added by Dr. Pradeep Mavuluri on May 19, 2013 at 10:52pm — No Comments

Weekly Digest - May 20

Selected articles, blog posts and forum questions from DSC, AnalyticBridge, BigDataNews

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Added by Vincent Granville on May 17, 2013 at 11:30am — No Comments

Technology Is No Longer the Analysis Bottleneck for Business Analysis

The business computing always occurs in enterprises, which plays an important role in enterprises operations, and mainly handled by the business users. The key business computing is usually characterized with timeliness and weak predication. There is no ready answer in the ERP, CRM, and other business systems. For example, find out the materials whose inventory level is below the warning limit for 3 consecutive days in the recent 2 weeks. Among those materials, which are used to produce the…

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Added by Jim King on May 16, 2013 at 7:05pm — No Comments

I aspired to get into analytics…I succeeded! Jigsaw Academy student Smriti Singh tells us how she made a career shift into analytics.

This week we are proud to feature another bright student of ours who, with hard work and determination, translated her dreams of being a data analyst into reality. Fully realizing the potential of analytics in India, Smriti realized that the path to rich career growth lay in obtaining the skills that were in demand in the analytics industry.…

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Added by Jigsaw Academy on May 16, 2013 at 4:22am — No Comments

The application of Propensity Score Matching

Propensity Score Matching is a statistical matching technique that attempts to estimate the effect of a treatment, policy or other intervention by accounting for the covariates that predict receiving the treatment. It helps to reduce bias due to confounding and can be used to estimate the counterfactual outcome.

For example, many of you will have been to a particular university or school and achieved a certain…

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Added by Ian Morton on May 16, 2013 at 3:00am — 1 Comment

Strategy for building a “good” predictive model

By Ian Morton. Ian worked in credit risk for big banks for a number of years. He learnt about how to (and how not to) build “good” statistical models in the form of scorecards using the SAS Language.

Read original post and similar articles…

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Added by Mirko Krivanek on May 15, 2013 at 10:00pm — 2 Comments

Analytic Edge Feature

Analytic Edge is a provider of high impact business solutions leveraging advanced analytics and technology. Headquartered in Bangalore, India, it is the brainchild of Santosh Nair. With over 12 years of experience in statistical modeling and advanced analytics consulting, Santosh and his team bring a refreshing and dynamic approach to their business. By integrating myriad sources and applying cutting edge…

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Added by Jigsaw Academy on May 14, 2013 at 3:40am — No Comments

Big Data: market basket analysis and product affinities

Analytics can offer a key possibility identifying which products are sold together, because that information can be used to influence targeted communication efforts, store layouts, and in-store promotions.

 

Facing this topic I have made a personal research, and realize a synthesis, which has helped me to clarify some ideas. The attached presentation does not intend to be exhaustive on the subject, but could perhaps bring you some useful insights.

 …

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Added by Michel Bruley on May 13, 2013 at 3:47am — No Comments

Analytical Skills Development Spending.

Challenged with the acquisitiveness for adaptability and agility, analytical service organizations are turning to real-world work & emergent…
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Added by Dr. Pradeep Mavuluri on May 13, 2013 at 2:04am — No Comments

Key Non-ignorable Points for Agile Analytical Services.

Added by Dr. Pradeep Mavuluri on May 13, 2013 at 12:28am — No Comments

The End of Theory: The Data Deluge Makes the Scientific Method Obsolete | Wired

Here's my rebuttal to this article published in Wired in 2008.

Vincent's rebuttal:

A lot can be done with black-box pattern…

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Added by Vincent Granville on May 12, 2013 at 7:30pm — 2 Comments

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