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Featured Blog Posts – February 2010 Archive (7)

Only one degree of separation with Barack Obama

I am connected (on LinkedIn) to at least one person who is directly connected to Barack Obama. That's one degree of separation. With Bill Gates, I have two degrees of separation.

Social networks have made it possible for people to be more closely related than ever before. Actually, I'm much closer to Bill Gates than Barack Obama, in real life. I'd expect (in real life, as opposed to online) that my degrees of separation with the US President would be 4 or 5, and 3 with… Continue

Added by Vincent Granville on February 15, 2010 at 11:30pm — 2 Comments

How to fight swine flu with digital technology?

By Deborah Yao, AP Business Writer , On Monday February 15, 2010, 11:36 am EST.

PHILADELPHIA (AP) -- A tap on the HealthMap iPhone application brings up a cluster of red pins on a map, representing nearby cases of swine flu. Another tap brings up a form for ordinary Americans to add to the collection by reporting bouts they have or know about.

HealthMap Outbreaks Near Me is among scores of iPhone apps, along with social networks, Wikipedia and flu-tracking sites, that give… Continue

Added by Vincent Granville on February 15, 2010 at 11:00pm — 1 Comment

Rise of the Machines: How "Quant" Trading Triggered the Credit Crisis

Posted Feb 11, 2010 04:19pm EST by Aaron Task


Added by Vincent Granville on February 14, 2010 at 8:51pm — 2 Comments

Fewer patents submitted in 2009: a sign that US is less innovative? Maybe just the contrary.

Companies have been cutting budgets, and lengthy/expensive patent applications is one of the easiest costs to cut. In the fast-moving economy, by the time your patent is accepted, the product is outdated. But there are other reasons for not submitting patents:
  1. By submitting a patent, your idea can get stolen (e.g. by the patent Attorneys)
  2. For analytic algorithms, it is much more important to be protected against reverse engineering (a…

Added by Vincent Granville on February 13, 2010 at 11:30pm — No Comments

Evaluating Value-at-Risk models via Quantile Regression


Wagner Piazza Gaglianone

Luiz Renato Lima

Oliver Linton

Daniel Smith


This paper is concerned with evaluating value at risk estimates. It is well known that using only binary variables, such as whether or not there was an exception, sacrifices too much information. However, most of the specification tests (also called backtests) available…


Added by John A Morrison on February 11, 2010 at 12:34am — No Comments

Test Data Wanted

I am looking for, preferably real life, test data for my (prototype) data mining/machine learning tool Emping-0.6, This tool discovers heuristic rules in a table of nominal data and the relationship between these rules. It has currently been tested on the mushroom data set from the UCL machine learning repository and the audiology set from that same repository.

For more info see Muitovar. Don't forget to have a look at the 3635 rules for… Continue

Added by Hans van Thiel on February 10, 2010 at 1:32pm — No Comments

ACM Newsletter

Last edition below.

To sign up:

DARPA's New Plans: Crowdsource Intel, Edit DNA

Wired News (02/02/10) Drummond, Katie

The U.S. Defense Advanced Research Projects Agency's (DARPA's) future plans call for crowdsourcing military

intelligence, creating an immune system for Defense Department networks, and

conducting research that could lead to editing soldiers' DNA. DARPA wants to

improve how the… Continue

Added by Vincent Granville on February 7, 2010 at 12:42pm — No Comments

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