We discuss the linear gravitoelectromagnetic approach used to solve Einstein’s equations in weak-field and slow-motion approximation, which is a powerful tool explain, by analogy with electromagnetism, several gravitational effects solar system, where approximation holds true. In particular, we analogy, according can be written as Maxwell-like equations, focus on definition of fields non-statio...

CL A M is a proof planner, developed by the Dream group in Edinburgh, that mainly operates for inductive proofs. This paper addresses the question how an analogy model that I developed independently of CL A M can be applied to CL A M and it presents analogy-driven proof plan construction as a control strategy of CL A M. This strategy is realized as a derivational analogy that includes the refor...

In addition to identifying the content within a single image, relating images and generating related images are critical tasks for image understanding. Recently, deep convolutional networks have yielded breakthroughs in predicting image labels, annotations and captions, but have only just begun to be used for generating high-quality images. In this paper we develop a novel deep network trained ...

Category theory, possibly more than any other mathematical theory, has a rich philosophical significance. The reason why it has not been so far exploited by philosophers is that they know it, if at all, only superficially. In the present essay, I shall explore only one aspect of this theory, namely the way it contributes to our understanding of such concepts as: analogy, identity, equivalence. ...

On April 8-9, 1999, more than sixty securities lawyers, regulators, and academics participated in a roundtable discussion in Washington, D.C., on what should be the future content of the U.S. securities laws. The full participant list (excluding, however, SEC personnel) appears in the Appendix of this report. The conference’s co-conveners were Mr. Edward F. Greene of Cleary, Gottlieb, Steen & H...

The compressible nature of the source terms in Lighthill’s acoustic analogy can be closed. For weakly compressible flows, in the absence of thermoacoustic effects, the compressibility of the source field is known in terms of solenoidal modes of the vortical flow field. In such flows, the square of the fluctuating Mach number is small and this fact, coupled with the singular nature of the acoust...

The Lighthill acoustic analogy, as embodied in the Ffowcs Williams{Hawkings (FW{H) equation, is compared with the Kirchho formulation for moving surfaces. A comparison of the two governing equations reveals that the main Kirchho advantage (namely nonlinear ow e ects are included in the surface integration) is also available to the FW{H method if the integration surface used in the FW{H equation...

The theory of natural selection suggests that animals will do their best to maximize their number of offspring. So why do some young Florida scrub jays stay at the nest and help their parents to raise next year’s brood, instead of striking out on their own? Why do most ants, bees and termites remain childless, working tirelessly for the good of their colony? Ever since the landmark work of Hami...