Data Intelligence, Business Analytics
Interesting article published in IEEE Spectrum.
The queen of the sciences may someday lose its royal status
By ROBERT W. LUCKY / MARCH 2012…Continue
Added by Vincent Granville on March 10, 2012 at 3:33pm — No Comments
For statistical process control, a number of single charts that jointly monitor both process mean and variability recently have been developed. For quality control-related hypothesis testing, however, there has been little analogous development of joint mean-variance tests: only one two-sample statistic that is not computationally intensive has been designed specifically for the one-sided test of Ho: Mean2<=Mean1 and StDev2<=StDev1 vs. Ha: Mean2>Mean1 OR StDev2>StDev1 (see…Continue
Added by J.D. Opdyke on March 9, 2012 at 7:41am — No Comments
Three metrics can be used to segment the population of data scientists. Each metric has three levels: high, medium, low. Hence the 27 (= 3 * 3 * 3) types of scientists.
Here are the metrics in question:
Random Walkers, Informal Quant Meetup in the Crosse Keys Pub
Thursday 8th March
A meetup for quants, risk managers, traders, algos, quant/devs and anyoneelse who (mis)uses maths in finance.This is not a formal affair, we are taking over the balcony area at the back ofthe Crosse Keys pub near Leadenhall…
Added by Vincent Granville on March 8, 2012 at 1:00pm — No Comments
The financial crisis – risk transfer, insurance layers and (no?) reinsurance culture
Michael Fackler freelance actuary Munich, Germany
The financial crisis of 2007 has triggered various debates, ranging from the stability of the banking system to subtle technical issues regarding the Gaussian and other copulas. All these debates are important, and it might be good to start even a further one: Credit derivatives have much in common with…
Added by John A Morrison on March 7, 2012 at 9:00pm — No Comments
“Exploratory” and “conﬁrmatory” data analysis can both be viewed as methods for comparing observed data to what would be obtained under an implicit or explicit statistical model. For example, many of Tukey’s methods can be interpreted as checks against hypothetical linear models and Poisson distributions. In more complex situations, Bayesian methods can be useful for constructing reference distributions for various plots that are useful in exploratory…Continue
Added by John A Morrison on March 7, 2012 at 10:30pm — No Comments
Added by Sandeep Raut on March 7, 2012 at 7:37pm — No Comments
In the last months we discussed a lot about text mining algorithms, I would like for a while focus on data mining aspects.
Today I would talk about one of the most intriguing topics related to data mining tasks: the regression analysis.
...To read the entire post click here
Added by Cristian Mesiano on March 7, 2012 at 2:27pm — No Comments
Ever since the ﬁnancial crisis of the banking system of 2008 - 2010 the paradigm that deposits or other exposures towards major banks are safe has been fundamentally questioned. This put industrial corporates, who to support their business usually need to manage signiﬁcant cash holdings or incur counterparty credit risk via derivatives, in the situation to develop or extend their resources for counterparty credit risk management. This paper provides a…
Added by John A Morrison on March 4, 2012 at 12:30am — No Comments
Read below more about this disruptive technology for Big Data Analytics.
This is probably the most exciting announcement of the last months: Radoop and RapidMiner are partners now! Read below more about this disruptive technology for Big Data Analytics.…Continue
Added by Vincent Granville on March 3, 2012 at 12:00pm — No Comments
Interesting article posted in The Guardian (see below). Here's my answer to this question:
A data scientist (I like the term data wizard better) is someone who can consistently derive money out of data, e.g. working as an employee, consultant or in an other capacity, by providing value to clients or extracting…Continue
Saptarshi Guha / Paul Kidwell / Ryan P. Hafen / William S. Cleveland
Comprehensive visualization that preserves the information in a large complex dataset requires a visualization database (VDB): many displays, some with many pages, and with one or more panels per page. A single display using a speciﬁc display method results from partitioning the data into subsets, sampling the subsets, and applying the method to each sample, typically one per panel.…
Added by John A Morrison on March 2, 2012 at 2:39am — No Comments
We are generating more data than ever before. Thanks to the data scientists who organize and analyze this information, this abundance of Big Data can be harnessed to serve the public interest in innovative ways.
Big Data for the Public Good is a four-part seminar series hosted by Code for America in San…Continue
Added by Vincent Granville on February 29, 2012 at 10:00pm — No Comments
In the last two post we have discussed about co - occurrences analysis to extract features in order to classify documents and extract "meta concepts" from the corpus.
We have also noticed that this approach doesn't return better than the traditional bag of words.
I would now explore some derivation of this approach, taking advantage of the graph theory.
the graph of the co occurrences is really huge and complex, how could we reduce its complexity without big information…Continue
Added by Cristian Mesiano on February 29, 2012 at 1:59pm — No Comments
StatSoft’s (www.statsoft.com) STATISTICA Decisioning Platform™ is the only enterprise predictive analytics and decision management software platform to…
Added by Vincent Granville on February 29, 2012 at 9:55pm — No Comments
Many customer behaviors have the flavor of a choice between two alternatives: Yes or no. Buy or sell. Renew or cancel. Suppose software called a “classifier” is available to predict customer choices in advance. Would you use it? Perhaps you’d like to test it to see how well it performs before you commit. In this installment of my series on the nuts and bolts of data mining, I discuss the use of classifiers and questions about their performance. Regarding performance, we specifically…Continue
Added by Daniel Graettinger on February 27, 2012 at 10:29am — No Comments