50 research outputs found

    Metaphor as categorisation: a connectionist implementation

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    A key issue for models of metaphor comprehension is to explain how in some metaphorical comparison , only some features of B are transferred to A. The features of B that are transferred to A depend both on A and on B. This is the central thrust of Black's well known interaction theory of metaphor comprehension (1979). However, this theory is somewhat abstract, and it is not obvious how it may be implemented in terms of mental representations and processes. In this paper we describe a simple computational model of on-line metaphor comprehension which combines Black's interaction theory with the idea that metaphor comprehension is a type of categorisation process (Glucksberg & Keysar, 1990, 1993). The model is based on a distributed connectionist network depicting semantic memory (McClelland & Rumelhart, 1986). The network learns feature-based information about various concepts. A metaphor is comprehended by applying a representation of the first term A to the network storing knowledge of the second term B, in an attempt to categorise it as an exemplar of B. The output of this network is a representation of A transformed by the knowledge of B. We explain how this process embodies an interaction of knowledge between the two terms of the metaphor, how it accords with the contemporary theory of metaphor stating that comprehension for literal and metaphorical comparisons is carried out by identical mechanisms (Gibbs, 1994), and how it accounts for both existing empirical evidence (Glucksberg, McGlone, & Manfredi, 1997) and generates new predictions. In this model, the distinction between literal and metaphorical language is one of degree, not of kind

    LOGICAL AND PSYCHOLOGICAL PARTITIONING OF MIND: DEPICTING THE SAME MAP?

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    The aim of this paper is to demonstrate that empirically delimited structures of mind are also differentiable by means of systematic logical analysis. In the sake of this aim, the paper first summarizes Demetriou's theory of cognitive organization and growth. This theory assumes that the mind is a multistructural entity that develops across three fronts: the processing system that constrains processing potentials, a set of specialized structural systems (SSSs) that guide processing within different reality and knowledge domains, and a hypecognitive system that monitors and controls the functioning of all other systems. In the second part the paper focuses on the SSSs, which are the target of our logical analysis, and it summarizes a series of empirical studies demonstrating their autonomous operation. The third part develops the logical proof showing that each SSS involves a kernel element that cannot be reduced to standard logic or to any other SSS. The implications of this analysis for the general theory of knowledge and cognitive development are discussed in the concluding part of the paper

    The 1984 ASEE-NASA summer faculty fellowship program (aeronautics and research)

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    The 1984 NASA-ASEE Faculty Fellowship Program (SFFP) is reported. The report includes: (1) a list of participants; (2) abstracts of research projects; (3) seminar schedule; (4) evaluation questionnaire; and (5) agenda of visitation by faculty programs committee. Topics discussed include: effects of multiple scattering on laser beam propagation; information management; computer techniques; guidelines for writing user documentation; 30 graphics software; high energy electron and antiproton cosmic rays; high resolution Fourier transform infrared spectrum; average monthly annual zonal and global albedos; laser backscattering from ocean surface; image processing systems; geomorphological mapping; low redshift quasars; application of artificial intelligence to command management systems

    Web-based knowledge-based system on liquid retaining structure design as instructional tool

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    2002-2003 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe

    The evolution of innovation networks : the case of a German automotive network

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    In this paper we outline a conceptual framework for depicting network development patterns of interfirm innovation networks and for analyzing the dynamic evolution of an R&D network in the German automotive industry. We test the drivers of evolutionary change processes of a network which is based on subsidised R&D projects in the 10 year period between 1998 and 2007. For this purpose a stochastic actor-based model is applied to estimate the impact of various drivers of network change. We test hypotheses in the innovation and evolutionary economics framework and show that structural positions of firms as well as actor covariates and dyadic covariates are influential determinants of network evolution

    Distributed cortical networks for syntax processing: Broca's area as the common denominator

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    Different types of syntactic information (word category, grammatical gender) are processed at different times during word recognition. However, it is an open issue which brain systems support these processes. In the present event-related fMRI study, subjects performed either a syntactic gender decision task on German nouns (GEN), a word category decision task (WC, nouns vs. prepositions), or a physical baseline task (BASE). Reaction times in WC were faster than in GEN, supporting earlier electrophysiological results. Relative to BASE, both syntactic tasks activated the inferior tip of BA 44. In addition, BA 45 showed activation in GEN, whereas BA 47 was activated in WC. The imaging data indicate that the inferior portion of BA 44 together with type-specific prefrontal areas supports both initial word category related and later syntactic processes

    AUDITOR\u27S ASSISTANT: A knowledge engineering tool for audit decisions

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    https://egrove.olemiss.edu/dl_proceedings/1039/thumbnail.jp

    Whole-part and part-whole inferences in generative and cognitive linguistics

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    The paper focuses on the relation between the analytical philosophy of science and modular and holistic approaches to cognitive linguistics, respectively. The authors show that Chomsky's as well as Bierwisch & Lang's and Lakoff & Johnson's approaches make substantial use of non-demonstrative inferences which the standard view of the analytical philosophy of science evaluates as fallacies. By outlining a metatheoretical framework focusing on plausible inferences, the authors argue that the inferences the theories mentioned make use of are plausible rather than fallacious. This finding illuminates basic aspects of theory formation in linguistics and motivates the revaluation of the methodological foundations of linguistic theories

    Leveraging diverse ecosystem partners for innovation: the roles of regional innovation environment and partnership heterogeneity

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    Although prior studies investigated the influence of partner diversity on focal firms’ innovation performance, they failed to consider partners’ ecosystem positions and the roles of regional innovation environment and partnership heterogeneity. To fill these gaps, this study examines the relationship between supplier diversity, customer diversity, regional innovation environment, partnership heterogeneity and innovation performance to provide a comprehensive and throughout understanding of the influence of partner diversity on innovation performance. Based on data of 188 Chinese manufacturing firms, this article finds that both diversities of upstream suppliers and that of downstream customers contribute to innovation performance. Regional innovation environment and partnership heterogeneity moderate the influences of supplier diversity and customer diversity on innovation performance. In a favourable regional innovation environment, the benefits of diverse upstream suppliers for innovation are eroded, while the benefits of diverse downstream customers for innovation are enhanced. Partnership heterogeneity with suppliers can mitigate the moderating effect of regional innovation environment on the relationship between supplier diversity and innovation performance. These findings advance the literature on partner diversity and innovation performance, thus providing fine-grained managerial implications to firms to orchestrate diverse inter-organizational partners for innovation
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