## Archive for the ‘Newspaper article’ Category

June 13, 2017
The two points of view represented below are both well reasoned, conflicting, and cogent, but can they both be right? The experts currently disagree, but maybe one day the question will be answered definitively. For now, it makes for an interesting debate, and only time will tell who is right. Today’s answer may not be tomorrow’s answer.

A key question is how much data does one need in order to make smart investment decisions. Those who believe best decisions come from analyzing tons of data lean towards computer algorithms, while those who think smart evaluations don’t require looking at every piece of data lean toward human understanding and interpretation.

The term “quants,” refers to those quantitative analysts who crunch the number and are more reliant on computers and algorithms.

Why Brains Are More Reliable Than Machines – WSJ

Quants_ Best Strategy Is From the 17th Century – WSJ

Tags:AI in the news, algorithms for investing, big data, Quants, stock picking

Posted in applied engineering, computer article, computer investing, Finance, Newspaper article, science news, Statistics | Leave a Comment »

April 25, 2017
Venture Capital firms, that is, firms that invest in funding start-ups, early stage companies, and companies with good growth potential, are always on the hunt for the next great opportunity. The article below talks about the trend away from people who are expert in spotting such opportunities, and towards computer based analytics which is believed to be faster and better at finding the “next big thing.”

Venture-Capital Firms Use Big Data to Seek Out the Next Big Thing – WSJ

Tags:analytics, data mining, economic modeling, math education, mathematical modeling

Posted in coding education, computer article, computer education, Econ 101, economics, jobs in computers, Math and the market, math article, math in the news, math news, Newspaper article, Statistics, statistics in news, Statistics Readings | Leave a Comment »

April 25, 2017
“Adding Math To Save Humanities” is the title of a sidebar article in the Wall Street Journal, April 25, 2017, about liberal arts colleges trying to add more mathematical contents to traditional liberal arts courses to better prepare their graduates for the work world. Along with the Big Data revolution comes the need for employees in many diverse fields to be able to analyze data and to “rigorously and effectively” use data to answer questions. “Emory University in Atlanta has created a degree that marries traditionally qualitative disciplines such as anthropology and English with math and statistics.” This shift is in part to due students enrolling in liberal arts programs in smaller numbers. Click below for the full article.

saving liberal arts

Tags:education, liberal arts and math, math education, math news

Posted in computer education, General interest, jobs in computers, Math and the market, math article, math education, math in the news, math news, Newspaper article, Statistics, statistics in news | Leave a Comment »

March 3, 2017
Economics is so basic and essential for good citizenship and good personal decisions, that it is a shame high school students can graduate without even being exposed to the subject. An article by high schooler Benjamin Auslin from Montgomery Blair High School in Silver Spring, Maryland, makes a strong argument that understanding supply and demand, the time value of money, return on investment and the basics of personal finance are skills that would well serve the graduates and society.

economics-shouldnt-be-an-elective-wsj

Tags:economics, Economics news, education, education research, good advice

Posted in advocacy, Econ 101, economics, General interest, Internet article or paper, Math and the market, math article, math education, math in the news, math news, Newspaper article | 1 Comment »

October 6, 2016
The following two paragraphs are quotes from a fascinating article about how 3 physicists “playing” with math stumbled upon a remarkable and practical finding. The link to the whole article follows the quotes.

“A trio of British-born researchers working in the U.S. won the Nobel Prize in physics for what one of them called a curious mathematical “toy” that to his surprise revolutionized the study of exotic matter suitable for quantum computers, new superconductors, and advanced designer materials.”

” “At the time, I thought it was of scientific interest and mathematical interest, but I didn’t think it would ever find a particular realization,” said Princeton University physicist F. Duncan M. Haldane, who shared the award for theoretical experiments he had conducted in the 1980s. “I basically stumbled on this playing with mathematics.” ”

For the whole article go to:

nobel-prize-in-physics-awarded-to-david-n-haldane-and-michael-kosterlitz-wsj

Tags:material sciennce, Nobel Prize, Physics, science

Posted in computer article, Internet article or paper, math article, math in nature, math in the news, Newspaper article, Physics Readings, science news | Leave a Comment »

September 13, 2016
In a recent study 20% of genetics research papers using Microsoft Excel have been found to have data errors due to improper data entry. It turns out that gene names such as SEPT2 and MARCH1 (these are actual gene name abbreviations used by scientists) get converted to dates by Excel and then result in rejected data. The problem is resolvable if the scientists would make sure the data cells were formatted as “Text,” prior to entering the data.

For the full article in the Washington Post click on the link below.

https://www.washingtonpost.com/news/wonk/wp/2016/08/26/an-alarming-number-of-scientific-papers-contain-excel-errors/

Tags:math article, Microsoft Excel, statistics article, Technology news, text data on Excel

Posted in General interest, Life Science, math article, math in the news, math news, Newspaper article, science news, Statistics Readings | Leave a Comment »

July 19, 2016
Scientists studying sleep time of preschoolers and obesity in teenages have observed some interesting correlations, but they are not conclusively cause and effect. As reported in the New York Times, July 19, 2016.

Early Bedtime May Fight Fat NYT 7_19_16

Tags:math article, Statistics, statistics article, statistics news

Posted in Life Science, math article, math in the news, Newspaper article, statistics in news, Statistics Readings | Leave a Comment »

July 3, 2016
Adjusting the data? How much adjustment is good? How do you know when the adjustments introduce distortions? When are you fixing the data? And when are you fixing the results? To know the answers to those question take a lot of experience and objectivity.

In an article in The Wall Street Journal ( July 1, 2016), by Jo Craven McGinty, titled, “*Seasonal Fluctuations Vex Statisticians in Quest to Capture Economy’s Growth*, Stripping out normal variation challenges government as it seeks to give accurate GDP figure,” Ms. McGinty addresses a current example of how data is handled.

” “We expect a certain amount of randomness in any economic data,” said Brent Moulton, who oversees GDP and other national economic statistics for the Bureau of Economic Analysis.”

“When adjusted numbers continue to exhibit the influences of seasonal effects, statisticians refer to it as residual seasonality.” That is something new.

” “Small patterns of seasonality at the individual granular level, which don’t appear to be that significant, can add up over time, over quarter and over various components to substantial residual seasonality,” said Mr. Rudebusch, who found that adjusting the GDP a second time seems to erase the effect.”

As I said, are we fixing the data, or are we fixing the results?

Tags:applied statistics, Economics news, Residual seasonality, statistics article, statistics news

Posted in General interest, math article, math in the news, Newspaper article, Statistics, statistics in news, Statistics Readings | Leave a Comment »

June 19, 2016
Self fulfilling prophesies can make someone his own worst enemy. Expecting to fail can become the formula for failure. The question is how to get students who have low expectations of themselves, and who doubt their ability to succeed, to reset their mind-set. Some new research sheds some valuable light on this question.

A Small Fix in Mind-Set Can Keep Students in School – WSJ

Tags:education research, math education, statistics article, statistics news, student success news

Posted in General interest, math education, Newspaper article, statistics in news, Tech Education | Leave a Comment »

June 6, 2016
Statistics students should read The Wall Street Journal article about the myth of the summer stock market rally (WSJ, June 6, 2016). By examining the data the author shows that the summer historically had less rallies than other times of the year, and yet the name, the concept and the belief persists. The author suggests that the name might go back to the Depression when in the summer of 1932 the Dow Jones Industrial Average gained 76.5% from the low close of June to the high close of August.

Sometimes we see what we expect to see, and no one is immune from the perception bias, but being aware of the tendency makes you better prepared to deal with it in an intelligent manner.

For the full article, click here: The Market’s Summer-Rally Myth – WSJ

Tags:applied math, financial news, Statistics, statistics article, stock market news

Posted in Finance, math article, math in the news, Newspaper article, Statistics, statistics in news, Statistics Readings | Leave a Comment »