The paper describes a principled approach to the problem of deriving database queries from logical forms produced by a general NL interface. Our method at tempts to construct a database query and a set of plausible assumptions, such that the logical form is equivalent to the query given the assumptions. The domain information needed is provided as declarative meaning postulates, including "defi...

Molecular orbital calculations are presented for the parent sulfine and some monoand dihalogensubstituted sulfines, using ab initio and INDO methods. A partial geometry optimization was performed for nine different sulfines. Charge distributions, potential surfaces and dipole moments were calculated from the wave functions of the optimized geometries. Cis-trans interconversion barriers and elec...

Molecular orbital calculations are presented for the parent sulfine and some monoand dihalogensubstituted sulfines, using ab initio and INDO methods. A partial geometry optimization was performed for nine different sulfines. Charge distributions, potential surfaces and dipole moments were calculated from the wave functions of the optimized geometries. Cis-trans interconversion barriers and elec...

1 I n t r o d u c t i o n Neocortical circuits are formed of recurrently connected neurons. These neurons are of two basic types, inhibitory and excitatory, which are reciprocally coupled in monosynapt ic or polysynaptic arcs. The possible roles of these connections have been the subject of many experimental and theoretical analyses. Little at tention has been given to the effect of recurrent c...

When the state of the world changes due to an action performed by an agent in a multiagent system, the views of other agents, and hence their knowledge, remain unaffected. We describe such situations using a simple modal logic. Traditionally, modal logics of knowledge are interpreted over global states of the multi-agent system. When actions are incorporated into such logics, it leads to high u...

Molecular orbital calculations are presented for the parent sulfine and some monoand dihalogensubstituted sulfines, using ab initio and INDO methods. A partial geometry optimization was performed for nine different sulfines. Charge distributions, potential surfaces and dipole moments were calculated from the wave functions of the optimized geometries. Cis-trans interconversion barriers and elec...

Results of highly precise all-electron local spin density FLAPW calculations on (i) a close-packed 7-layer Ni (111) slab and (ii) a p (1 x 1) Ni monolayer on Cu (111) are presented. For Ni ( I l l ) , we find an enhancement of the magnetic moment for both the surface (to 0.63 pB) and sub-surface Ni layers (from a center layer value of 0.58 pB). In contrast, a slight decrease of the magnetic hyp...

Tile need for a greatly expanded network of strong-motion accelerographs throughout the seismic regions of the world is stressed. A summary of the characteristics of currently available strong-motion accelerographs is presented, and the design details are given for an instrument suitable for acquiring the basic data needed by structural engineers for earthquake resistant design. It is shown tha...

Incorporation of leucine-C ~ into subcellular fractions of the apical section of pea seedlings has been studied as a function of the length of incubation. The specific activity of the microsomes was higher than that of the supernatant for short but not for long incubations, in agreement with observations on other systems. In this developing tissue the nuclei and especially the mitochondria appe...

-This article introduces a new neural network architecture, called A R T M A P , that autonomously learns to class(~v arbitrarily many, arbitrarily ordered vectors into recognition categories based on predictive success. This supervised learning system is" built up from a pair of Adaptive Resonance Theory modules (ART, and ARTh) that are capable o f self-organizing stable recognition categories...