The metacognitive loop (MCL) is an architecture for automated noting, repairing, and learning from errors. Initial work on this award involved builing special-purpose MCL programs for each individual application domain. Later in the award period a more uniform approach was designed that employs a general framework providing ontologies for types of Indications, Failures, and Repairs. This allows...

the application of ai-li alloy in aerospace and aircrafts industries have a promising future due to its lower density and a comparatible mechanical properties to the other aluminum alloys. the major problems encountered with parts made of al-li alloys, include segregation and brittleness. the presence of a precipitation free zone (pfz) and also the concentration of some elements such as k,na,o,...

Neural prosthetic interfaces based upon penetrating microelectrode devices have broadened our understanding of the brain and have shown promise for restoring neurological functions lost to disease, stroke, or injury. However, the eventual viability of such devices for use in the treatment of neurological dysfunction may be ultimately constrained by the intrinsic brittleness of silicon, the mate...

In genetic systems there is a non-trivial interface between the sequence of symbols which constitutes the chromosome, or 'genotype', and the products which this sequence encodes--the 'phenotype'. This interface can be thought of as a 'computer'. In this case the chromosome is viewed as an algorithm and the phenotype as the result of the computation. In general, only a small fraction of all poss...

We present and analyze an agnostic active learning algorithm that works withoutkeeping a version space. This is unlike all previous approaches where a restrictedset of candidate hypotheses is maintained throughout learning, and only hypothe-ses from this set are ever returned. By avoiding this version space approach, ouralgorithm sheds the computational burden and brittleness as...

I will present a perspective on human-level commonsense behavior (HLCSB) that differs from commonsense reasoning (CSR) as the latter is often characterized in AI. I will argue that HLCSB is not far beyond the reach of current technology, and that it also provides solutions to some of the problems that plague CSR, most notably the brittleness problem. A key is the judicious use of metacognitive ...

We describe a generalization of Copycat, an important computational architecture for high-level perception. We show how this generalization simplifies the application of computational perception to problems previously beyond the reach of the fluid analogy-making principles underlying Copycat. We also discuss the ways in which this generalization addresses the fundamental problem of brittleness,...

Brittleness is an essential parameter to determine the deformation and failure behavior of rocks, it useful quantify brittleness rocks in numerus engineering practices. A novel energy-based evaluation index proposed this study, which redefines dissipated proportion ultimate elastic strain energy relative post-peak residual energy. series conventional triaxial compression (CTC) tests were perfor...

Alloys based on the near-equiatomic FeCo offer exceptional magnetic properties. The equiatomic alloy was ‘invented’ in 1929, it offers a saturation hardly lower than that of the maximum obtained for Fe-0.35Co, with higher permeability and a lower coercivity than the latter. However, this alloy remained without industrial application, mainly because of its extreme brittleness. Only with the addi...

Tribological performance of the hot-pressed pure Al2O3 and its composites containing various hybrid contents of graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs) were investigated under different loading conditions using the ball-on-disc method. Benchmarked against the pure Al2O3, the composite reinforced with a 0.5 wt% GNP exhibited a 23% reduction in the friction coefficient along wit...