Stephanie Glen's Blog (136)

Sunglasses and Face Mask Won't Fool Facial Recognition Systems Any More

  • Tips to fool facial recognition systems are fast becoming obsolete.
  • New research using partial features is showing a high success rate.
  • The future looks bleak for privacy advocates.

Facial recognition systems have exploded in popularity in the last couple of years. From filing for…


Added by Stephanie Glen on October 10, 2021 at 5:00pm — No Comments

Using Data Science to Model Ocean Plastic Pollution

  • New study uses agent-based model for displacement of plastics in the ocean.
  • Authors hope to build awareness about plastic pollution.
  • The model calculates drift based on the direction of surface water currents.
  • Future uses may include tracking crash debris.


A new study from researchers at The …


Added by Stephanie Glen on September 30, 2021 at 3:50am — No Comments

New Study uses Federated Learning to Predict Covid-19 Outcomes

  • New study used Federated Learning to predict severity of Covid-19 for E.R. patients.
  • Significant improvements seen in central vs. local models.
  • Model slated for use in production in the near future.

Many ethical and legal challenges surround COVID-19 data analysis, including data ownership, data security, and…


Added by Stephanie Glen on September 20, 2021 at 8:19am — No Comments

Neural Network Can Diagnose Covid-19 from Chest X-Rays

  • New study is 98.4% accurate at detecting Covid-19 from X-rays.
  • Researchers trained a convolutional neural network on Kaggle dataset.
  • The hope is that the technology can be used to quickly and effectively identify Covid-19 patients.

As the Covid-19 pandemic continues to evolve, there is a…


Added by Stephanie Glen on September 13, 2021 at 4:00am — No Comments

New Study uses DNN to Predict 99% of Coronary Heart Disease Cases

  • Cardiovascular diseases are the primary cause of global deaths.
  • New model detects coronary heart disease with almost 99% accuracy.
  • DNN with hidden layers shows more accuracy than other models.

According to the World Health Organization (WHO), cardiovascular diseases (CVDs) are the leading cause of death…


Added by Stephanie Glen on September 5, 2021 at 2:30pm — No Comments

New Study Warns: Get ready for the next pandemic

  • A new study warns we’re likely to see another major pandemic within the next few decades.
  • New database of pandemic info used to calculate increased probability.
  • A major pandemic will likely wipe out human life within 12,000 years.

For much of the past century, the fear has been that a calamity like an asteroid…


Added by Stephanie Glen on August 29, 2021 at 12:30pm — No Comments

What Went Wrong with Pandemic Modeling?

  • Examples of the worst models built during the Covid-19 pandemic.
  • Reasons why pandemic modeling is fraught with issues.
  • Some successful models may offer hope for the future.

Covid-19 forecasting efforts fell apart at the seams, despite experienced modelers, sophisticated tools, and the best of intentions.…


Added by Stephanie Glen on August 23, 2021 at 6:00am — 1 Comment

Finding and Fixing Autocorrelation

  • Autocorrelation can ruin your regression analysis.
  • How to spot autocorrelation in your data with visual tools and formal tests.
  • Tips to remove autocorrelation.

Autocorrelation is a measure of similarity (correlation) between adjacent data points; It is where data points are affected by the values of…


Added by Stephanie Glen on August 16, 2021 at 6:17am — No Comments

Geospatial Modeling: The Future of Pandemic Analysis


  • Geospatial modeling may be the future of pandemic control.
  • Recent studies analyzed local data and found hidden trends.
  • Border control isn’t enough to stop the spread of Covid-19.
  • Where you live determines your risk for the disease.


Significant amounts of data have been collected, analyzed, and…


Added by Stephanie Glen on August 9, 2021 at 4:30am — No Comments

Key Attributes in ER Diagrams

  • Overview of different types of keys used in E-R diagrams.
  • How to establish a primary key from a set of alternatives.
  • Composite, superkey, candidate, primary and alternate keys explained.
  • Other keys you may come across include foreign and partial keys.

If you’re unfamiliar with entities and attributes, you may…


Added by Stephanie Glen on July 31, 2021 at 6:30pm — No Comments

E-R Diagram Cardinality and Participation

Cardinality and participation explained for E-R diagrams.

  • How to show cardinality/participation for several methodologies.
  • Examples of notation and diagrams.

In my previous posts, I discussed some E-R diagram…


Added by Stephanie Glen on July 25, 2021 at 11:00am — No Comments

E-R Diagram: 5 Mistakes to Avoid

  • Good E-R diagrams capture core components of an enterprise.
  • 5 things not to include in your diagram.
  • Tips to guide you in your E-R diagram design.

In my previous blog post, I introduced you to the…


Added by Stephanie Glen on July 18, 2021 at 2:53pm — 2 Comments

Intro to the E-R Diagram

  • E-R diagrams capture meaning in your data.
  • This high-level visual tool identifies core components of an enterprise
  • Simple steps to follow to create the diagram.

Entity-Relationship (E-R) Modeling is one approach to visualize what story your data is trying to tell. This goal of this predecessor to…


Added by Stephanie Glen on July 11, 2021 at 2:30pm — No Comments

Five Graphs to Show Cause and Effect

  • Cause-and-effect relationships can be visualized in many ways.
  • Five different types of graphs explained, from simple to probabilistic.
  • Suggestions for when to use each type.

If your data shows…


Added by Stephanie Glen on June 27, 2021 at 5:30pm — No Comments

Stroke Prediction using Data Analytics and Machine Learning

  • Data-based decision making is increasing in medicine because of its efficiency and accuracy.
  • One branch of research uses Data Analytics and Machine Learning to predict stroke outcomes.
  • Models can predict risk with high accuracy while maintaining a reasonable false positive rate.

Stroke is the second leading cause of death…


Added by Stephanie Glen on June 22, 2021 at 4:26am — No Comments

Outbreak Analytics at the Forefront of Data Science

  • Epidemics remain a major public health issue. 
  • Data science steps in when traditional modeling methods fail.
  • Outbreak analytics can handle the complex data involved in pandemic assessment.

The last two decades saw more new infectious diseases of global concern than in any similar period of history [1]. Ebola, Influenza A…


Added by Stephanie Glen on June 11, 2021 at 8:08am — 1 Comment

The NFT Crypto-Art Bubble has Officially Burst

  • Non-fungible token assets are declining rapidly,
  • The market is down 70% from its peak,
  • NFTs , in a moderated form, are likely here to stay.

Non-fungible tokens (NFTs), tradable digital certificates…


Added by Stephanie Glen on June 7, 2021 at 6:00am — No Comments

The Environmental Toll of NFTs

  • The Non-Fungible Token (NFT) craze is an environmental blitz.
  • What's behind the massive energy use.
  • Solutions to the problem.

The high environmental toll of NFTs

A couple of weeks ago, I wrote an article…


Added by Stephanie Glen on May 31, 2021 at 4:00am — No Comments

The Future of Business Analytics is Here

  • Business analytics has moved from the sidelines to the forefront
  • AI-based technology has revolutionized the field
  • Real-world examples of BA success.

Gone are the days when a BA’s  role was as a requirements note taker [1], or  when data interpretation was the responsibility of a small team of programmers.  In the…


Added by Stephanie Glen on May 23, 2021 at 2:56pm — 1 Comment

NFTs Explained in Two Pictures: The Good, The Bad ... and The Ugly

  • Non-Fungible Tokens (NFTs) are taking the art world by storm.
  • A large number of serious problems outweigh any positives.
  • Two infographics to explain the process and issues.

The above image shows how an object of value, like an artwork, music file or GIF, can be “minted” and sold via a non-fungible token (NFT). An…


Added by Stephanie Glen on May 16, 2021 at 12:30pm — No Comments

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