Many memory models represent aspects of words such as meaning by vectors of feature values, such that words with similar meanings are placed in similar regions of the semantic space whose dimensions are defined by the vector positions. Methods for constructing such spaces include those based on scaling similarity ratings for pairs of words, and those based on the analysis of co-occurrence stati...

We developed and implemented a first-principles based theory of the Landauer ballistic conductance, to determine the transport properties of nanostructures and molecularelectronics devices. Our approach starts from a quantummechanical description of the electronic structure of the system under consideration, performed at the density-functional theory level and using finite-temperature molecular...