Mesh Wi-Fi Kills Dead Zones

December 6, 2018

Mesh wi-fi systems explained and compared.  Joanna Stern, tech reporter for the Wall Street Journal field tested six mesh wi-fi routers and showed how they compare in various categories from signal strength to ease of use.  For the full article from the WSJ (12/6/18) clink on the link below.  #meshwifi #wifideadzones #meshrouters #joannastern

Kill Your Wi-Fi Dead Zones! The Best Mesh Systems for Your Home – WSJ


Irreproducibility Crisis in Science

September 27, 2018

Reproducibility of results is one of the prime building blocks of the scientific method.  A scientist doing the same experiment as another, under the same conditions, is expected to get confirming results.  Pressure on academicians to publish has led to a widespread irreproducibility crisis which has gotten past the peer review process in many cases.

Two common problems are p-hacking and HARKing.  “P-hacking involves running statistical analyses until they produce a statistically significant result; HARKing stands for “hypothesizing after the results are known.”  Everyone using statistics has to know that these are absolutely unacceptable practices.

The attached Wall Street Journal article is about a Cornell University professor, who had an excellent reputation until recently being exposed and being repudiated.

A Cornell Scientist_s Downfall – WSJ

Health Apps are the next “must haves.”

September 21, 2018

Apps to help you manage and protect your health and wellness are quickly going center stage.  From monitoring the amount of exercise you get, to monitoring your blood sugar and heart rate to the new heart monitors on the Apple Watch Series 4, health tech is changing fast.  This article from 9/19/18 gives just a glimpse.

Open Your App and Say ‘Ahh_ – WSJ

Facial Recognition Algorithms Not Perfect

September 18, 2018

Facial recognition programs are already being used but are not always quite ready, and nowhere near perfect.  This Wall Street Journal article (September 18, 2018) highlights some of the successes and failures of deployed facial recognition systems.  How perfect does it have to be to have value finding criminals in a crowd?l

Don_t Believe the Algorithm – WSJ

Degree Days explained

September 15, 2018

“Degree days” is a measure of energy needed to cool or heat building spaces to a comfortable temperature.  It is useful for planning energy costs for different locations, and is far superior than using average temperatures in which highs and lows tend to cancel eachother.  The link below to the Numbers column of the Wall Street Journal is the best explanation I have seen on the subject.  The second link is to a U. S. government website which is also very helpful.

How Do Energy Companies Measure the Tem…re? Not in Fahrenheit or Celsius – WSJ


Applying Technology for Helping the Elderly – iPads and Robots

May 29, 2018

iPads and robots are  being used to help the elderly manage everything from chronic medical conditions to loneliness.  The link below is to a Wall Street Journal article dated May 29, 2018 which discusses some of these issues.

For the Elderly Who Are Lonely, Robots Offer Companionship – WSJ

Computers help fight malaria

April 25, 2018

Health officials use geospatial mapping to track malaria’s spread, the then use machine learning and artificial intelligence to analyze the data and to deploy resources in the most efficient way possible.

For the full article in the April 25, 2018 Wall Street Journal, click here:

How Long Till the Final World Malaria Day? – WSJ

Computers Scan Restaurant Reviews for Clues of Unhealthy Food

April 23, 2018

If someone gets sick after eating suspected food at a restaurant, it is more likely that they will post it on social media, than report it to the local Health Department.  Computers developed at Columbia University scan restaurant reviews for words that might indicate a problem with spoiled food.  After finding multiple reports online, Health Department inspectors can be sent to investigate.

“Tainted food and drink sicken some 48 million people in the United States each year. That’s according to the Centers for Disease Control and Prevention. Nearly seven in every 10 of those incidents came after dining in restaurants.”

For full article, click:



Paper Review: Linguistic Features to Identify Alzheimer’s Disease — Lucky’s Notes

October 26, 2017

Machine learning and artificial intelligence can be key tools in the future, to do identify people with early signs of Alzheimer’s Disease, and to perhaps start treatment early.  Common patterns of speech, can be identified for people affected by the disease when responding to a controlled group of questions using audio analysis.  This could be the start of something very significant in diagnosing Alzheimer’s in a cost effective manner.

Today I’m going to be sharing a paper I’ve been looking at, related to my research: “Linguistic Features Identify Alzheimer’s Disease in Narrative Speech” by Katie Fraser, Jed Meltzer, and my adviser Frank Rudzicz. The paper was published in 2016 in the Journal of Alzheimer’s Disease. It uses NLP to automatically diagnose patients with Alzheimer’s […]

via Paper Review: Linguistic Features to Identify Alzheimer’s Disease — Lucky’s Notes

Steel Replaces Some Aluminium in Cars

October 16, 2017

After seeing aluminium in more and more cars in greater amounts, automobile manufacturers are swinging back to new lighter and stronger steel to replace the more expensive aluminium.  Fuel economy and lightness of the vehicles is still driving the innovations, but manufacturers have figured out how to use thinner steel while still maintaining its strength.

For the full article from the Wall Street Journal click below.

Steel Is Back in Style With Car Makers – WSJ