Thursday, March 15, 2018

Laser target fusion

I see that Curtis et al of Colorado State University claim a record production of 2 million fusion neurons per Joule of laser light from a nanowire target array. (Micro-scale fusion in dense relativistic nanowire array plasmas, Nature Communications, published online 14 March 2018) This appears to be based on my electron space charge ion heating mechanism. (R. Jones, Ind. J. Phys., 55B, 397, 1981)

Wednesday, March 14, 2018

A concept of causality

I have been using the word “cause” during some recent A.s.a. H. Training experiments. As a result Asa has formed the concept: cause=(force), cause=(low battery), cause=(walk), cause=(roll),... The corresponding concept of  "effect" might then be: effect=(acceleration), effect=(slow), effect=(move),... Asa understands causality as a high level generalization, a summary of numerous lower level processes. This is in contrast with some philosophers who believe that causality is a  fundamental primitive concept.

Sunday, March 4, 2018

Healing of mechanical life

Asa H robots can do a limited amount of self repair. If two lego bricks become loose this will signal a pain and pushing on the bricks may reseat them. If one agent, perhaps a mobile robotic arm, is damaged another can be sent to act in its place. One portable sensor system can be carried about rather than another  (broken) one.*

I have tried to make the Asa robots more modular so that damaged modules might be replaced with newer ones. Such capability is rather limited given the commercial components I am working with.

* Alteratively, the development of an easy electrical connect/disconnect might allow for replacement of faulty sensors alone while retaining the old computer interfacing circuitry, etc.

Friday, March 2, 2018

File backup and maintenance issues

I have paper and electronic copies of most of the programs in my AI code library. After losing my Case-Based Reasoning (paper) file during the ESU remodeling a few years ago I never did recover some of my  CBR programs. I may have had electronic copies on floppy disc or on the hard drive of my old DELL PC that died days after I bought my current HP desktop.* I have boxes of floppy discs, some of which can't be read anymore. Data files generated during experiments have not been maintained at all.

* I actually had a total of 3 older PCs that all died within a week or two at that time.

Sunday, February 18, 2018

A.s.a. H. gps success

The Vernier LabQuest 2's built in gps is able to measure positions to within a meter or two outdoors. I have even got it to work indoors though that is not recommended.

Attention mechanisms

In humans there appear to be multiple attention mechanisms distributed across the sensory modalities, executive control, and cognition. Similarly, A.s.a. H. has required the incorporation of multiple attention processes. Just how many are required?

Saturday, February 10, 2018

Knowledge hierarchy

Should different ways of representing concepts and different types of deduction system be used on different levels of a knowledge hierarchy? Certainly physics and biology use different sorts of representation and different practices. In a few of my experiments with Asa H I have employed multiple different similarity measures. When forgetting is used to prune less useful cases/concepts I sometimes find one similarity measure dominates on one level of the abstraction hierarchy while a different similarity measure dominates on another level. (By dominates I mean gives results having the highest utility measures.)