Podcast: Play in new window | Download (Duration: 6:42 — 4.0MB) | Embed

Subscribe: Email | RSS | More

Use of graphics cards for neural networks

Your graphics card holds a GPU—graphics processing unit. Unlike your CPU, which does one operation at a time, the GPU does many simple operations on many numbers at once. This allows your computer to run your favorite game, and it can be used to run artificial neural networks, and implement deep learning.

Here’s an amusing short video that demonstrates the difference between the sequential CPU approach, and the parallel processing of a GPU.

Mythbusters Demo GPU versus CPU

Podcast: Play in new window | Download (Duration: 6:14 — 3.9MB) | Embed

Subscribe: Email | RSS | More

Diving into deep learning

Neural networks have had their ups and downs. However, in the last decade or so, they’ve really taken off. There were a couple of breakthroughs that made all the difference. Today we look at one of them, called “Deep Learning.”

Here’s a 4-post long blog series on deep learning concepts and history.

A ‘Brief’ History of Neural Nets and Deep Learning

Here are a couple of talks on deep learning, and some of the things it has been able to do.

The wonderful and terrifying implications of computers that can learn

The Deep End of Deep Learning

Podcast: Play in new window | Download (Duration: 5:13 — 3.0MB) | Embed

Subscribe: Email | RSS | More

Unsupervised learning

When you are teaching an AI to solve a problem or do some task, you usually have to provide the right answer. However, sometimes, the AI can learn by itself, without being told what the right answer is.

Podcast: Play in new window | Download (Duration: 4:49 — 3.0MB) | Embed

Subscribe: Email | RSS | More

Better and better

Computers are being used to design computers. The better our computers and their tools get, the better computers and tools they can produce. But it wasn’t always an easy path. Today we look at the VAX9000. It used a system called “SID” to generate part of its design. SID was an expert system, and it was outperforming the human engineers, some of whom refused to work with it. The company that created the VAX9000 didn’t do well, and was eventually acquired by Compaq, after divestment of its major assets.

Here’s a video Digital Equipment Corporation produced for its sales department in 1991, 7 years before the company failed.

VAX 9000 Sales Video

Here’s an article about the previous VAX8800 series, and Digital Equipment’s move into the main frame market.

DIGITAL TO OFFER MAINFRAMES

Podcast: Play in new window | Download (Duration: 4:42 — 2.8MB) | Embed

Subscribe: Email | RSS | More

An experiment in fuzzy logic

Computers use Boolean logic. Everything is true false, yes no, zero and one. There are plenty of situations when a simple yes or no won’t cover it. To get a computer to handle those situations, one can use fuzzy logic. Today, we have an informal experiment that shows why fuzzy logic is needed for even simple things.

Here’s an introductory video on fuzzy logic.

An Introduction to Fuzzy Logic

And here’s a detailed tutorial on fuzzy logic and its application.

Fuzzy Logic Tutorial

Podcast: Play in new window | Download (Duration: 5:33 — 3.2MB) | Embed

Subscribe: Email | RSS | More

Socrates is not a woman

Evolutionary approaches, genetic algorithms, and neural networks aren’t the only approaches to creating artificial intelligence. Today, we look at one of the early and rather successful approaches—expert systems.

Podcast: Play in new window | Download (Duration: 4:30 — 2.5MB) | Embed

Subscribe: Email | RSS | More

Take heart, yee robots shivering in the cold

In the past, new methods of creating an artificial intelligence have garnered interest and enthusiasm. Then, when the over optimistic forecasts fail, nearly all funding and research grinds to a halt. It’s called an AI winter. Despite such setbacks, the general trend has been toward increasing ability and complexity within AI systems. Spring is coming, and maybe, it’s already here.

Podcast: Play in new window | Download (Duration: 7:35 — 4.3MB) | Embed

Subscribe: Email | RSS | More

The perceptron

In 1957, Frank Rosenblatt came up with the perceptron. The perceptron is a simple neural network that was able to recognize simple shapes. Unfortunately, Rosenblatt got a little over excited, and made over inflated statements about what his perceptron would be able to do. After the 1969 publication of Marvin Minsky and Seymour Papert’s book, “Perceptron,” which debunked many of Rosenblatt’s claims and pointed out some of the inherent limitations of the perceptron algorithm, interest and funding for neural networks dropped drastically.

Here are a couple of articles about the perceptron and the early history of neural network design.

History of the Perceptron

A ‘Brief’ History of Neural Nets and Deep Learning