Public school education

Not an autodidact

My only education-related experience has been passive, as a recipient. From kindergarten through 12th grade, I attended public schools in Las Cruces, New Mexico. I loved learning algebra, calculus, chemistry, English literature, French, U.S. history, physics, drafting, home economics, and orchestra. I find it difficult to learn from self-instructional materials. Learning by doing is effective, but requires some guidance.

K-12 education

I perceive betrayal of public interest throughout the U.S.A., due to federal government educational policy. New York City is especially troubled. Exceptionally wealthy individuals with ZERO experience or training in education have decided that they know what is best for America’s children.

The 0.1% of the 0.1%

The Brookings Institute describes them as the 0.1% of 0.1% in assets. Assets held is a robust metric for gauging wealth. It is important to distinguish between wealth and income. Income fluctuates from year to year, even for the wealthy. Causes vary. Some have profound impact, such as significant reversals of fortune. Some are merely transitory, e.g. accounting losses reported in order to minimize impact of tax law changes. These 0.1% of 0.1% individuals choose to actively direct the projects that are beneficiaries of their philanthropy.

Philanthropy, education reform and charter schools

Most education reform activists, or perhaps investors, have no knowledge, nor experience in public school education. Rather, they are exceptionally capable leaders of global software conglomerates. Others have great prowess as hedge fund managers, venture capitalists or real-estate moguls. Several are Wal-Mart family scions. Education reformers who have children educate them at private schools like Philips Andover or Choate, yet they claim that charter school operators provide a superior education, compared to public schools in the U.S.A.

Comparison of charter and public ed chart

Statistically questionable comparison of charter versus public school performance via Wikipedia

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Published in: on May 17, 2014 at 9:28 am  Comments (9)  
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The problem with randomness

How to generate random numbers from spam

dilbert comic strip 2001-10-25

Random number generators: The devil is in the details

I found SecurityDump’s WPRandom the other day:

Generating random numbers is pretty complicated if you need them for cryptographic algorithms. This software generates them based on spam comments…

It caught my eye as a sort of “spinning spam into RNG gold”, or more likely, PRNG (pseudo-random number generated) gold. Many WordPress blogs, whether self-hosted using WordPress.org or not, effectively use Akismet as a comment spam sieve. (more…)

Published in: on October 5, 2012 at 3:51 am  Comments (8)  
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SHODAN related infosec assortment

wiki defcon 2

The other Defcon

I never attended DEFCON, though it remains a dream I hope to realize one day, soon. It may soon become too logistically awkward due to increasing numbers of attendees.

Shodan is a remarkable search engine. Traditional search engines use “spiders” to crawl websites. Shodan culls data from ports. It was created by John Matherly in 2007. He continues to develop it.

Shodan is helpful for locating web server vulnerabilities. It is available as a free service, for up to 50 searches. Query syntax includes searches by country, host name, operating system and port. Shodan can search for software AND hardware. It has been acknowledged by mainstream media. The most prominent coverage was in early June, via The Washington Post, when Stuxnet received so much press attention.

Me and Shodan

Next is my Scribd infosec collection. It isn’t exclusively Shodan-related. This is why. (more…)

Published in: on June 13, 2012 at 9:24 pm  Comments (2)  
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Periodic Table Gallery

An exciting time for chemistry

Two new elements, flerovium Fl and livermoreium Lv have been approved for entry in the Periodic Table of the Elements! They were formerly known by blander names—ununquadium and ununhexium. In honor of the event, I assembled a gallery of periodic tables, but let me tell you more about the table first.

The chemical elements are arranged from top to bottom, in order of lowest to highest atomic number. (Atomic number is the same as the number of protons.) There are 118 elements. 98 are naturally occurring, and 14 occur naturally in decay chains of those 98, up to and including californium. The remaining six elements are lab synthesized.

timmurtaugh via Flickr

Periodic Tattoo

Why is it periodic?

Table rows are “periods” and table columns are “groups.” Some groups have specific names, e.g. the noble gases, occupying the last column on the right. Some rows do too, such as the lanthanides and actinides on the bottom two rows.

The table is also periodic because its inventor, Dmitri Mendeleev, intended for it to be updated periodically, as new elements are found. So Mendeleev’s design had a dual use: for describing how the elements relate to each other, as well as for inferring the properties of new and not yet found elements.

One scientific concept to rebuild civilization

The children’s Periodic Table on the U.S. EIA website has the basics. It links to Los Alamos National Lab’s (LANL) Periodic Table.

Photo of Los Alamos National Labs chemist with period table

Actinides at LANL

Here is a great quote from a recent LANL news story by David Hobart, Actinide Analytical Chemistry, History of the periodic table…and my history with it:

As the legendary physicist Richard Feynman put it, “If some universal catastrophe was to engulf the world and humankind could retain only one scientific concept to rebuild civilization, what would it be? The chemist’s answer is almost invariably the Periodic Table of the Elements.

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Published in: on March 24, 2012 at 9:02 am  Comments (8)  
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Ad hoc text analytics

Twitter 2009

I found an old sentiment analysis application. It has very unglamorous packaging but a  good algorithm under the hood. I ran the Twitter user id’s of the brightest people I know. well, know of, who are active Twitter users. The assessment of “bright” was subjective by me.  All are acknowledged experts or advanced degree holders. Maybe half speak English as a second language, but are sufficiently articulate that their “essence”, well, intelligence shines through.

Guess what: It worked! I don’t know if anyone cares about this sort of thing, that really sharp successful people score well on this sentiment analysis indicator. That doesn’t necessarily mean it would have any predictive value. And no one seems to care much about this anyway. But what I’m saying is that most of these people only have okay-ish Klout scores e.g. 40’s. But they’re not trying to use Twitter for any particular social media purpose. Well, I don’t know that with certainty.

Published in: on February 13, 2012 at 6:00 pm  Comments (6)  
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Chart art

Edward Tufte’s first text, The Visual Display of Quantitative Information, introduced standards for graphical representation. It is considered the definitive guide for visual display of complex data.

UPDATE 4 September 2014

Mind map about Tufte data visualization

Visualization of Edward Tufte visualizing data

Visualizing Edward Tufte’s thought processes

I found this while surfing Flickr. Austin Kleon of Austin, Texas is the artist. The image represents the cognitive process by which Edward Tufte transformed raw data into digestible information while writing Envisioning Information, one of his many follow-on publications to Visual Display. It is a mind map.

Tuftese

IEEE Spectrum’s Innovation blog featured the topic of data visualization, profiling Edward Tufte as a practitioner. The emphasis was unusual for IEEE. “Tufte-isms” explores how Tufte’s ideas have influenced language:

Tufte, it turns out, is not only a doyen of data visualization but also a neologist par excellence. His most famous term might be chartjunk, which refers to chart elements that not only serve no purpose but may in fact hinder understanding. In Tuftese, when chartjunk takes a cartoonish form…the result is a chartoon.

SAS* surprise

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Published in: on February 4, 2012 at 10:25 pm  Comments (2)  
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Taleb and the language of risk

Last night, I read about Nicholas Nassim Taleb on English Language and Usage StackExchange (EL&U). Professor Taleb wants to introduce a new word to the vocabulary of global financial collapse, antifragility:

So let us coin the appellation “antifragile” for anything that, on average, (i.e. in expectation) benefits from variability.

Consensus on EL&U was that this was a creative but unnecessary neologism. I echo the concerns of my EL&U comrades: Antifragility might cause confusion (maybe it is “anti-fragility”). There are many adequate, extant words that Taleb could use, however, antifragility is a term that will be uniquely associated with him.

I am not convinced that there are many entities that actually thrive due to uncertainty. A delta hedge that is long volatility is the only construct that I can think of off-hand. Perhaps that was what Taleb had in mind.

The original Black Swan

book cover of black swan with navy background

The Black Swan by Thomas Mann; 1954 UK First Edition

There was a slightly less contemporary black swan, the novella written by Nobel-prize winner Thomas Mann toward the end of his long and distinguished literary career.

The plot of that short fiction work also pertained to an anomalous event, one that could be considered a statistical outlier. (more…)

Published in: on February 1, 2012 at 6:28 am  Comments (8)  
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US Mint ends production of one dollar coins

Last Tuesday, 13 December 2011, The U.S. Mint announced that current production of one dollar coins is ending. The Mint will continue to produce a few one dollar coins for collectors, as required by law. But these will have numismatic value, and cost more than $1.00.

instead of producing 70-80 million coins per president, the Mint will now only produce as many as collectors order.

US Mint one dollar coin

2010 Native American $1 Coin reverse

Forty percent of $1 coins were returned, unwanted, to the Federal Reserve Bank each year.

Circulating demand for $1 coins will be met through the Federal Reserve’s existing stockpile, which will be drawn down over time.

My favorite $1 coin featured Sacagawea, guide to Lewis & Clark. This is the 2010 Native American $1 coin, reverse side. It is beautiful. Click through for full details from the U.S. Mint. (more…)

Published in: on December 16, 2011 at 12:23 pm  Comments (6)  
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Idea for a very open ID

Be receptive! Be open to each and every type of user input for authentication.

Universal sign on

This very user-centric approach for identity resolution leverages the many open API’s now available for web services. Feel free to select your user name-of-choice!

  • @Twitter user name
  • Facebook.com/user name
  • user name@gmail.com
  • YouTube.com/user name
  • user name.wordpress.com or user name.wordpress.org blog URL
  • Flickr.com/user name
  • user name@yahoo.com
  • Open ID provider URL
  • more?

In his identity resolution related post, developer Luis Farzati emphasizes that:

the objective is to allow the user to input whatever wanted [in order] to login… If it exists as a valid username out here, we’ll find it and suggest it!

Casual testing

Luis Farzati’s Smart Identity Resolver Widget is on Github. A demo is included. I tried it. (more…)

Published in: on December 6, 2011 at 9:04 am  Leave a Comment  
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Economic Models for Turbulent Times Part 2

A new research study has already received unusual attention. The Network of Global Corporate Control [PDF] discovers a relatively small group of multinational companies with disproportionate influence over the global economy. The authors, a trio of complex systems theorists at the Swiss Federal Institute of Technology in Zürich, are supposedly the first to empirically identify such a network.

The problem is approached using mathematical models designed for capturing behavior of complex natural systems. The study applies this methodology to a large data set of corporate information, to map ownership among the world’s transnational corporations (TNCs). Previous studies reported that a few TNCs drive much of the global economy. However, they analyzed fewer companies. Due to limited data availability and computing resources, past studies did not consider the effect of indirect ownership.

Methodology

Orbis 2007, a repository of over 30 million private and public companies, published by Bureau van Dijk, was the data source. The study sample used the 43,060 largest TNCs, and derived the associated ownership linkages. The network structure was based on the relationships between shareholding interests, then weighted by each company’s operating revenue. This yielded a directional map of global economic power.

Quantitative results

The model revealed a core group with networked ownership, see image below. These 1,318 companies:

  • all had ties to at least two other companies in the core group
  • on average, were each connected to 20 other core group companies
  • represented 20% of all global operating revenues,
  • collectively owned the majority of the world’s largest blue chip and manufacturing firms:
  • in total, generated 60% of all global revenues.

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Published in: on November 20, 2011 at 4:28 am  Comments (2)  
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