Anomalies
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Anomalies
Outliers, aberrations, fat tails, trouble at the mill and maybe something good once in awhile
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Scooped by Ellie Kesselman Wells
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Pipeline Safety Tracker

Pipeline Safety Tracker | Anomalies | Scoop.it
Every year the nations oil and natural gas pipelines suffer hundreds of ruptures and spills. We map major pipeline accidents from 1986 to the present.
Ellie Kesselman Wells's insight:

Pipeline technology at scale was developed 50+ years ago. Ruptures due to material weld equipment failure decreased since 1986, ranging from 16% to an all-time historical low of 8% in 2001. However, incidents due to material weld failures tripled the next year, and continued rising, to 30% in 2010 and 2011. Absolute counts of pipeline incidents per year have been stable since 1986. What's going on with these material weld equipment failures???

A few possibilities to consider are:

1. normal wear and tear, given the weld materials' expected lifetimes;

2. poor maintenance;

3. higher corrosiveness of the pipeline contents than expected or than in the past.

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Did the CIO have a Kodak moment?

JPMorgan's Chief Investment Office was given an edict to try to reduce risk-weighted assets, as part of a firm-wide initiative in the face of regulatory changes...

 

Ellie Kesselman Wells's insight:

The default of Kodak in January 2012 was a credit event that would certainly have influenced JP Morgan's CIO's decisions leading up to the "London Whale" in May 2012. Eastman Kodak was part of many credit default swap indices. Kodak's filing for bankruptcy on January 19th led to a variety of idiosyncratic risk exposures in JPM's synthetic credit portfolio.

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Expected vs Unexpected Events in Social Media

Expected vs Unexpected Events in Social Media | Anomalies | Scoop.it

How social media responses differ to expected and unexpected events (earthquakes).

Ellie Kesselman Wells's insight:

Compare social media responses to earthquakes, Hurricane Irene and the Yahoo! Music Awards; differences are obvious, and make sense intuitively.

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Estimating rates from a single occurrence of a rare event

Estimating rates from a single occurrence of a rare event | Anomalies | Scoop.it
Ellie Kesselman Wells's insight:

Use survival analysis rather than event rate.

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Rare Events

Rare Events | Anomalies | Scoop.it

Gary King, PhD has a nice collection of outlier event-themed research work, covering a wide range of fields of study. I think the website uses Harvard's OpenScholar CMS, which is an additional feature worth noting.

* The image that accompanies this was my choice (Prof. King has nothing to do with any errors in judgement I might make). It is a photograph of a recent annular eclipse, as observed in Southern California (Spring 2012) via Flickr.

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